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Daily News Blog

27
Jul

Lower IQ in Children Linked to Toxic Air Pollutants, Some Pesticides

(Beyond Pesticides, July 27, 2009) A mother’s exposure to urban air pollutants known as polycyclic aromatic hydrocarbons (PAHs) can adversely affect a child’s intelligence quotient or IQ, according to the new study “Prenatal Airborne Polycyclic Aromatic Hydrocarbon Exposure and Child IQ at Age 5 Years.†PAHs are widespread in urban environments and throughout the world as they have many sources, several of which are related to pesticides, including creosote used for wood preservation, burning pesticide-laden grass seed fields, and exposure to organochlorine pesticides whether banned, yet ubiquitous DDT or the still used insecticide dicofol. Other sources include synthetic turf fields and the burning of coal, diesel, oil and gas, or other organic substances such as tobacco. PAHs have been known to be bioaccumulative, carcinogenic and disrupt the endocrine system.

The new study, funded by the National Institute of Environmental Health Sciences (NIEHS), a branch of the National Institutes of Health, the U.S. Environmental Protection Agency and several private foundations, found that children exposed to high levels of PAHs in New York City had full scale and verbal IQ scores that were 4.31 and 4.67 points lower than those of less exposed children. High PAH levels were defined as above the median of 2.26 nanograms per cubic meter (ng/m3). A difference of four points, which was the average seen in this study, could be educationally meaningful in terms of school success, as reflected, for example, in standardized testing and other measures of academic performance. However, the researchers point out that the effects may vary among individual children.

“This research clearly shows that environmental PAHs at levels encountered in an urban setting can adversely affect a child’s IQ,†said Linda Birnbaum, Ph.D., director of NIEHS. “This is the first study to report an association between PAH exposure and IQ, and it should serve as a warning bell to us all. We need to do more to prevent environmental exposures from harming our children.â€

The study was conducted by scientists from the Columbia University Center for Children’s Environmental Health. It included children who were born to non-smoking black and Dominican-American women age 18 to 35 who resided in Washington Heights, Harlem or the South Bronx in New York. The children were followed from utero to 5 years of age. The mothers wore personal air monitors during pregnancy to measure exposure to PAHs and they responded to questionnaires.

At 5 years of age, 249 children were given an intelligence test known as the Wechsler Preschool and Primary Scale of the Intelligence, which provides verbal, performance and full-scale IQ scores. The test is regarded as a validated, reliable and sensitive instrument for assessing intelligence. The researchers developed models to calculate the associations between prenatal PAH exposure and IQ. They accounted for other factors such as second-hand smoke exposure, lead, mother’s education and the quality of the home caretaking environment. Study participants exposed to air pollution levels below the average were designated as having low exposure, while those exposed to pollution levels above the median were identified as high exposure.

“The decrease in full-scale IQ score among the more exposed children is similar to that seen with low-level lead exposure,†said lead author Frederica P. Perera, Dr.P.H., professor at Columbia’s Mailman School of Public Health and director of the Columbia Center for Children’s Environmental Health.

A 1999 study found that PAHs that are abundant in house dusts increase the toxicity of chlorpyrifos in vitro, particularly at low levels (i.e., 2-50 FM PAHs with 1-180 nM chlorpyrifos-oxon, a metabolite of chlorpyrifos that inhibits acetyl cholinesterase.

According to Beyond Pesticides’ wood preservatives campaign research, PAHs are one of the three classes of chemicals found in coal-tar creosote that are known to cause harmful health effects. Many of the components of the creosote mixture, such as PAHs, are rapidly absorbed through the lungs, stomach and intestines. Creosote is made up of about 75-85 percent PAHs. PAHs can attach to soil particles and may move with sediments into streams or remain part of a tarlike mass, but they may also move into groundwater in sandy soils low in organic matter. The remaining PAHs are bioaccumulative and carcinogenic. According to ATSDR’s Toxicological Profile on PAHs, “Studies of people show that individuals exposed by breathing or skin contact for long periods to mixtures that contain PAHs and other compounds can also develop cancer.” Creosote contains several carcinogenic PAHs, including benz[a]anthracene, benzo[a]pyrene, and dibenz[a,h]anthracene. The Department of Health and Human Services has determined that these three PAHs are known animal carcinogens. The EPA and the International Agency for Research on Cancer (IARC) have determined they are probable human carcinogens.

“IQ is an important predictor of future academic performance,†said Dr. Perera. “Fortunately, airborne PAH concentrations can be reduced through currently available controls, alternative energy sources and policy interventions.â€

This study adds to the body of scienific literature that links toxic chemical exposure to intellectual impairment in children. Joseph L. Jacobson, Ph.D., and Sandra W. Jacobson, Ph.D., in “Intellectual Impairment in Children Exposed to Polychlorinated Biphenyls in Utero” (1996), conclude that infants and young children whose mothers had eaten a diet of Great Lakes fish contaminated with polychlorinated biphenyls (PCBs) suffer adverse neurologic and intellectual function.

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24
Jul

Whole Foods Brands Will Carry “Non-GMO” Labeling

(Beyond Pesticides, July 24, 2009) Whole Foods Market, a leading natural and organic grocery chain, recently announced a commitment to the Non-GMO Project, a non-profit collaboration of manufacturers, retailers, processors, distributors, farmers, seed breeders and consumers, to use the Non-GMO Project’s Product Verification Program (PVP) in connection with Whole Foods Market’s private label products. The 365 Every Day Value and Whole Foods Market brands will be enrolled in the program, with the first products arriving on shelves this Fall.

While Federal law requires organic producers to comply with certain non-genetically engineered (GE) requirements identified in the USDA organic standards, there is no standard for labeling them in non-organic products. The PVP is the first system in the U.S.designed to scientifically test whether a product has met a set of defined standards for the presence of GE organisms (also known as GMOs, or genetically modified organisms).

“From the moment GMOs were approved for use in the U.S., we recognized the need for transparency, but there was no definitive standard by which to evaluate or label products,†said Margaret Wittenberg, Whole Foods Market global vice president of quality standards. “We searched high and low for years for a way to do this and now, thankfully, the Non-GMO Project has answered that challenge by creating a standard and a practical system by which manufacturers may measure their products. At last, shoppers concerned about foods made with genetically modified ingredients will be able to make informed choices.â€

“Since there is no U.S. regulation regarding disclosure on products manufactured with GMO ingredients, we are committed to helping our shoppers make confident choices by knowing that what they are buying has been verified as meeting the standards on the non-GMO project,†said Michael Besancon, senior global vice president of purchasing for Whole Foods.

According to the FDA, as much as 75 percent of processed food in the U.S. may contain components from genetically modified crops. Despite the abundance of products with genetically modified ingredients, a Pew Initiative study on Food and Biotechnology shows that 59 percent of Americans are unfamiliar with the issue of genetically modified ingredients in food.

“In 30 other countries around the world, including Australia, Japan and all of the nations in the European Union, there are significant restrictions or outright bans on the production of GMOs, due to environmental impact and concerns about GMO safety,†said Megan Thompson, executive director of the Non-GMO Project.

The Non-GMO Project is a non-profit organization dedicated to allowing consumers to make informed choices and to working toward the sustained availability of non-GMO options. Whole Foods Market is a member of the group, which is a collaboration of manufacturers, retailers, processors, distributors, farmers, seed breeders and consumers. Together these members have established a working standard and have developed North America’s first independent third-party Product Verification Program.

The PVP uses a process that combines on-site facility audits, document-based review and DNA testing to measure compliance with the standard. For a product to bear the seal it must undergo a process through which any ingredient at high risk for genetic contamination – soy or corn, for example – has been shown to meet the non-GMO standard through avoidance practices and testing.

Once a product has been approved through the PVP it can be described as being verified by the Non-GMO Project and/or be labeled with the Non-GMO Project’s compliance seal. The first Whole Foods Market private label products to bear this seal are expected to be in stores before the end of the year.

There are a variety of reasons to avoid genetically engineered crops: links to infertility, corporate interference in science, legal threats to non-GE farmers, persistence in the environment, increased pesticide use, insect resistance, and risk to aquatic organisms. The organic label ensures that consumers can avoid all GE products, in addition to reducing toxic pesticide use and increasing environmental and public health. For more information on organic food, visit Beyond Pesticides’ program page.

In the absence of a federal labeling requirement for GE food, however, the Non-GMO label will help consumers identify non-organic products that can also avoid supporting GE crops. Unlike unclear or misleading “natural” and “sustainable” labels, “non-GMO” fulfills a specific purpose. Beyond Pesticides supports Whole Foods in identifying products that do not contain GE ingredients, but encourages the chain, as a certified organic retailer, to continue to promote organic foods as the most sustainable standard available.

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23
Jul

Pesticide Drift from Fields Impact Amphibian Populations

(Beyond Pesticides, July 23, 2009) A new study published in the August 2009 issue of Environmental Toxicology and Chemistry found that insecticides used in highly populated agricultural areas of California’s Central Valley affect amphibians that breed in the Sierra Nevada Mountains to the east. This study adds to the increasing evidence that pesticides impact areas and wildlife species that are miles from sources of pesticide application.

Researchers from the Cooperative Wildlife Research Laboratory, Southern Illinois University and U.S. Geological Survey (USGS) examined the chronic toxicity of two of the insecticides most commonly used in the Central Valley- chlorpyrifos and endosulfan, to larval Pacific treefrogs (Pseudacris regilla) and foothill yellow-legged frogs (Rana boylii), the amphibians with declining populations that live and breed in meadows surrounding the Sierra Nevada. The results are discussed in “Toxicity of Two Insecticides to California, USA, Anurans and Its Relevance to Declining Amphibian Populations.†The study used laboratory testing to examine how the insecticides affected the two frogs at environmentally realistic concentrations. During testing, tadpoles were observed at various stages of development to see how the insecticides affected their growth and health.

The researchers found that endosulfan was more toxic than chlorpyrifos to both species, and tadpoles of both species developed abnormalities when exposed to high endosulfan concentrations. Endosulfan also affected the growth and development rates in both species. The researchers say this affects the amphibians’ behavior and increases their vulnerability to predators and hydrological events such as floods and droughts. The yellow-legged frogs, which rely more on standing water during reproduction and have seen higher population declines compared with other species like the tree frog, was the more sensitive of the two.

Winds blow insecticide residues into the mountains, and they fall as rain or snow, say the researchers, Donald Sparling, PhD, of Southern Illinois University, and Garry Fellers, PhD, of the USGS’ Western Ecology Research Center in Point Reyes. Here, the chemicals breakdown more slowly due to cooler temperatures. “Concentrations of insecticides in the Sierra Nevada Mountains of California may have the ability to inflict serious damage on native amphibians,†Dr. Sparling and Dr. Fellers write. “The present study adds to the increasing evidence that pesticides are very harmful to amphibians living in areas that are miles from sources of pesticide application.â€

A previous study reported that endosulfan was 1,000-times more lethal to amphibians than other pesticides examined in the study. Declining amphibian populations have been recorded in pristine areas far downwind from areas of active pesticide use. Another USGS study found that the breakdown products of chlorpyrifos, and other pesticides are ten to 100 times more toxic to amphibians than their parent compounds, which are already highly toxic to amphibians. Endosulfan is banned in Europe and many other countries around the world due to the serious toxic effects attributed to its use. It is an organochlorine pesticide, in the same family as DDT and lindane, and like DDT and lindane, it bioaccumulates and has been found in places as far from point of use as the arctic. It is also a suspected endocrine disruptor, affecting hormones and reproduction in aquatic and terrestrial organisms.

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22
Jul

Oregon Suspends Pesticide Use Reporting After 2008 Data

(Beyond Pesticides, July 22, 2009) The Oregon Department of Agriculture (ODA) recently released statistics for statewide pesticide use in 2008, while at the same time announcing the suspension of the reporting system, which has only been collecting data since 2007. The Pesticide Use Reporting System (PURS) was suspended until 2013 by House Bill 2999, due to lack of funding. The $800,000 saved will instead be used to fund two investigator positions. Until its reinstatement, officials will be unable to collect data or pursue enforcement related to missing reports from earlier in 2009.

The 2008 PURS report documents agricultural and household pesticide use, which totaled almost 20,000 pounds and 572 different active ingredients. The top five active ingredients, by pounds, were all used in agriculture: metam sodium, glyphosate, 1,3-dichloropropene, sulfuric acid, and aliphatic petroleum hydrocarbons. Agriculture totaled 77 percent of all pesticide use, with urban/general indoor and outdoor uses totaling under four percent. The total used dropped by half from 2007, due in part to improved record keeping and a decline in the use of metam sodium, a popular fumigant in potato production.

In households, pesticide use may be shifting away from the most toxic products. “In 2007, everyone was just grabbing DEET (a mosquito repellent),†said Aimee Code, water quality coordinator for the National Coalition for Alternatives to Pesticides (NCAP). The report indicates that some users were trying citronella and castor oil as repellents. “That’s really good to see.â€

When the program returns in 2013, it will be altered to require reporting in 95 or 96 specific watershed regions, rather than the 15 geographic regions in the existing reports. “Right now it is so large. Something used in the Willamette water basin could be anywhere from Portland to Eugene,†said Sunny Jones, an ODA pesticide investigator. “People who do the research roll their eyes. This puts it at a scale where researchers can use it.â€

Ms. Code hopes the program will return with the legislature’s support. “If we don’t know what pesticides are being used in what amounts, how do we prioritize them?†she said.

Sources: Associated Press, Statesman Journal

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21
Jul

First Certified Organic Rooftop Farm in Chicago

(Beyond Pesticides, July 21, 2009) Last week, Uncommon Ground, an eco-conscious restaurant in Chicago, opened the first certified organic rooftop farm. Receiving certification through Midwest Organic Services Association (MOSA) in October of 2008, the 250 square foot space includes approximately 640 square feet of soil which is used to grow a variety of high-yield crops. The plants are rotated in containers throughout the season and are served to diners in the restaurant below. The fresh produce featured on the menu includes sweet and hot peppers, eggplant, lettuces, heirloom tomatoes, greens, radishes, beets, okra, spinach, fennel, mustard, edamame, beans, shallots, garlic as well as plenty of herbs to keep diners happy. The farm is stocked by plants raised by local organic farmers Jenny Borchardt and Harvest Moon Farm, and by seeds that were purchased from Seed Savers, Johnny’s and Seeds of Change, as well as those that have been cultivated from successful plants.

In 2007, the same year that Beyond Pesticides toured the Chicago City Hall Green Roof at our 25th National Pesticide forum Changing Course in a Changing Climate, Uncommon Ground restaurant owners Helen and Michael Cameron decided to find a second home to expand their business, making it as environmentally efficient as possible. Extensive remodeling of the new building took extra steps to assure that the building could support a green roof, such as digging an extra five feet into the basement to accommodate heavy-duty steel beams. Aside from employing an organic production garden however, the building uses solar panels to heat up to 70% of the water in the restaurant, and has two beehives that produce over 40 pounds of honey. Though it’s not open to the public, there are â€Ëœrooftop tours’ during the farmer’s markets that the restaurant hosts every Friday in its parking lot, and classes are held for 3rd graders at the local Waldorf school where kids can learn about urban agriculture. “Our mission is to stand as a working model for other restaurants, businesses and home owners,†Ms. Cameron says, “to show what is possible within an urban environment.â€

While organic rooftop gardening requires a lot more planning and investment than other typical forms of urban agriculture, a unique benefit is that there is virtually no transition period for becoming certified. Whereas city soils are often contaminated with harmful chemicals such as pesticides used on lawns and lead, inputs for rooftop and container gardens are completely controlled by the gardener or farmer, so there is a lot less room for contamination, and there is no amendment period needed for already contaminated soil. Rooftop gardening has other built in perks too, as it acts as an insulator, keeping the building cooler in the summer and warmer in the winter, and as with all container gardens, weeds are lot easier to control. For more information on starting your own organic garden, read our factsheets: “Planning an Organic Garden†and “Organic Gardening: The Basics.â€

Urban agriculture has increased tremendously in popularity in recent years, including with the Obama family, and it’s no surprise why. Organic agriculture is healthier for our environment as well as our bodies. It has been shown to reduce dietary pesticide exposure, and produces healthier food. For many reasons, Beyond Pesticides advocates eating organic, locally grown and fairly traded products whenever possible. For more information on how to incorporate these foods into your diet, see “Buying Organic Products (on a budget).”

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20
Jul

Citing Greenhouse Gas Effects, Groups Ask EPA to Deny More Sulfuryl Fluoride Use

(Beyond Pesticides, July 20, 2009) Public health and environmental advocates have asked the U.S. Environmental Protection Agency (EPA) to deny a request from Dow AgroSciences for a permit allowing it to release large amounts of sulfuryl fluoride, a toxic pesticide whose global warming effects are thousands of times stronger than carbon dioxide, onto farm fields in four states. Dow AgroSciences proposes using sulfuryl fluoride to sterilize soil in farm fields. The permit would allow the release of 32,435 pounds of sulfuryl fluoride on 65 acres of test plots in Florida, Georgia, Texas, and California. Yet, researchers have found that sulfuryl fluoride stays in the atmosphere at least 30-40 years and perhaps as long as 100 years and is about 4,000 times more efficient than carbon dioxide at trapping heat. Because of the aggregate effects of surfuryl fluoride, Beyond Pesticides jonined Fluroide Action Network and Envirornmental Working Group in petitioning the U.S. Environmental Protection Agency (EPA) to cancel the registration of the chemical due to dangerous levels in food and water.

“The hazards of using sulfuryl fluoride in agriculture have not been evaluated,†said Brian Hill, Ph.D., a staff scientist at the Pesticide Action Network. Releasing just 10 percent of the proposed amount into the air would be equivalent to releasing 15.5 million pounds of carbon dioxide. “A car that gets 30 miles per gallon would have to be driven 23 million miles — the distance of a trip circling the world over 930 times — to cause that much global warming,†said Dr. Hill.

“Other offices within EPA are currently working diligently to control climate change, which the EPA recognizes as the most pressing environmental challenge of our times,†said Justin Augustine of the Center for Biological Diversity. “It makes no sense for EPA’s Office of Pesticide Programs to work at cross purposes with the rest of the agency by allowing the use of such a harmful substance.â€

Not only is sulfuryl fluoride a potent greenhouse gas, its high toxicity likewise poses significant human health and ecological risks. Thus far, EPA has not carefully reviewed the health risks for those exposed to the chemical or considered the impacts of the releases on endangered species and other wildlife. The groups’ letter asks EPA to take a hard look at these questions, including by consulting with the U.S. Fish and Wildlife Service.

“Dow would like to sell this toxic chemical to farmers across the country — and will apply to do so if this test goes well,†said Craig Segall of the Sierra Club. “We don’t need more global warming pollution, so we’re asking EPA to nip this problem in the bud.â€

Sulfuryl fluoride has typically been used for structural pest control of termites. The insecticide is pumped into a tent that covers a termite-infested structure. When the tent is removed, the compound escapes into the atmosphere. Sulfuryl fluoride blocks a wavelength of heat that otherwise could easily escape the Earth, according to University of California at Irvine scientist. Carbon dioxide blocks a different wavelength, trapping heat near the surface.

“The only place where the planet is able to emit heat that escapes the atmosphere is in the region that sulfuryl fluoride blocks,†said Donald Blake, chemistry professor University of California at Irvine. “If we put something with this blocking effect in that area, then we’re in trouble â€â€ and we are putting something in there.â€

According to Beyond Pesticide research, sulfuryl fluoride is acutely moderately toxic by oral exposure (Toxicity Category II) and slightly toxic for acute inhalation (Toxicity Categories III and IV) and dermal vapor toxicity (Toxicity Category IV). Residents and workers are at risk for neurotoxic effects from acute exposure. Subchronic studies on rats have indicated effects on the nervous system, lungs, and brain. Developmental and reproductive effects have also been noted in relevant studies on rats. According to the National Research Council, fluorides might also increase the risk of developing Alzheimer’s disease, and boys exposed to fluoride in drinking water are five times more likely to develop osteosarcoma , a rare form of bone cancer. Since sulfuryl fluoride was only registered for use as a fumigant for existing infestations, EPA waived the environmental fate data requirements for reregistration in 1993 and did not consider ecological risks. The agency expects that non-target organisms would not likely be exposed to sulfuryl fluoride and that the pesticide would not leach to groundwater or persist in the environment for any significant amount of time.

According to the most recent data (2007) by the California Department of Pesticide Regulations, sulfuryl fluoride is the top pesticide used in the state for structural pest control and 14th for all pesticide application sites, with over 2.1 million pounds used in 2007 for structural pest control, over 3,200 pounds for landscape and rights-of-way applications, and about 42,000 on agricultural products such as almonds, broccoli, dried fruits, prunes, rice and other agricultural commodities.

Non- and least-toxic alternatives to using sulfuryl fluoride for structural pest management are viable and protect public health and the environment from hazardous chemical exposure. Ecologically-based land management systems and practices such as organic agriculture and organic lawns and landscapes also hold the key to freeing our country of its chemical dependency.

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17
Jul

Urban Insecticide Use Linked to Decline of Delta Ecosystem

(Beyond Pesticides, July 17, 2009) High levels of pyrethroid pesticides in the Sacramento-San Joaquin River Delta, the number one river system on America’s Most Endangered Rivers List of 2009, has been linked to heavy urbanization in the region. Leading a study to understand the collapse of the delta’s ecosystem, University of California-Berkeley toxicologist Donald Weston, Ph.D. found that these pesticides most likely reached the river from urban storm drains, collecting household pesticide disposal and runoff from lawns of 1.4 million residents in the Sacramento region.

Five years ago, a study by Dr. Weston and his colleague Michael J. Lydy, Ph.D of Southern Illinois University in Carbondale found that synthetic phyrethroids were collecting in river and creek sediments at levels that are toxic to bottom dwelling fish. Current research holds that there are enough pyrethroids to kill tiny shrimp, which are said to be the first link in the aquatic food chain.

Pyrethroids are synthetic versions of pyrethrin, a natural insecticide found in certain species of chrysanthemum. It initially came on the market as a â€Ëœsafer’ alternative to the heavily regulated and highly toxic organophosphates, such as diazinon and chlorypyrifos. Despite the fact that there are plenty of effective pest control methods that are not nearly as toxic, it is now one of the most popular class of household pesticides, making appearances in the form of powders and sprays to control mosquitoes, fleas, flies, and cockroaches. This high-volume use of pyrethroid pesticides is cause for concern to consumers as it has been linked to serious chronic health problems. They are classified as possible human carcinogens and suspected endocrine disruptors, and have been found lingering in the dust at daycare centers. Pyrethroids, however, are particularly dangerous to aquatic life even at the same concentrations used to fend off mosquitoes.

Common pyrethroid-based pesticides include: Bifenthrin, Cyfluthrin, Cypermenthrin, Deltamethrin, Fenvalerate, Permethrin, Resmethrin, Sumithrin, and Tetramethrin.

Unlike pyrethrins, synthetic pyrethroids are designed to last longer in the sunlight, and can remain toxic in soil for months, where they can easily make their way into the watershed through storm drains. Contamination may also be caused by the dumping of unused pesticides down sink drains, as Dr. Weston’s study shows that Sacramento’s regional wastewater treatment plant is the single largest source of pyrethroid pollution in the Delta.

Dr. Weston’s study was presented to the Central Valley Regional Water Quality Control Board in Rancho Cordova. The board plans to list much of the area’s waterways as “impaired†due to the high levels of pyrethroid pesticides. This, hopefully, could bring about new usage rules and a ban on some products that contain pyrethroids. For more information on less toxic alternatives to pyrethroids, refer to our factsheets on the web.

Source: The Sacramento Bee

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16
Jul

EPA Initiates Review for Pesticide Linked to Honeybee Decline

(Beyond Pesticides, July 16, 2009) The U.S. Environmental Protection Agency (EPA) has issued a Final Work Plan (FWP) for the registration review of imidacloprid. A neonicotinoid insecticide, imidacloprid is highly toxic to honeybees on an acute exposure basis, and has been implicated in the recent Colony Collapse Disorder (CCD) that has occurred throughout the U.S. Over 12,000 comments were received by the agency since December 2008, urging the agency to suspend the use of this controversial chemical.

Imidacloprid was first registered in the U.S. in 1994 as an insecticide to control a range of pests on crops, structures, indoor and outdoor residential areas, as well as pet products. While the use of imidacloprid has been gaining in popularity, its health and environmental effects have not been adequately studied. EPA, with its registration review program, pursuant to the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) section 3(g), must review each registered pesticide every 15 years to determine whether it continues to meet the FIFRA standard for registration. The public docket for imidacloprid was opened in December 2008 and has since received over 12,000 comments, including those submitted by Beyond Pesticides, NRDC, the National Honey Bee Advisory Board (NHBAB) and Sierra Club, among others. These comments provided the agency scientific studies detailing the toxicity of imidacloprid to honeybees. Commenters also stated that in regard to imidacloprid, there are too many data gaps, its review process needs to be accelerated, and that cancellation or suspension of all neonicotinic pesticides is warranted given the potential economic harm to the commercial honey bee industry.

However, in a letter to Sierra Club dated October 10, 2008, in response to its request for suspension of the use of nicotinyl insecticides, including imidacloprid, the agency said, “In order to suspend the registration of a pesticide under FIFRA, EPA must find that an â€Ëœimminent hazard’ exists. The federal courts have ruled that to make this finding, EPA must conclude, among other things, that there is a substantial likelihood that imminent, serious harm will be experienced from use of the pesticide. While the information before EPA, including the information you have provided to us, clearly indicates that further study regarding the possible connection between these pesticides and serious harm to bees is warranted, your request for suspension does not demonstrate a causal link sufficient to justify the suspension of these pesticides under the FIFRA standard.â€

It is likely that EPA would continue to ignore the precautionary principle and the emerging science that demonstrates that imidacloprid and other chemicals in its class are immediate threats to pollinators. Several countries in the European Union (EU) have already taken action and suspended the use of imidacloprid including Italy, Germany, Slovenia and France.

Imidacloprid has been linked to sublethal effects in honeybees, which include disruptions in mobility, navigation, and feeding behavior. Lethal and sublethal exposures to imidacloprid have been shown to decrease foraging activity, along with olfactory learning performance and decrease hive activity. Bees are exposed when they pollinate flowering crops treated with imidacloprid, or pesticide drift (via wind) from surrounding areas. The rapid disappearance of the honeybees, also dubbed “Colony Collapse Disorder†or CCD, has been observed in the U.S. since 2006. Research is ongoing as to the cause of the phenomenon, but pesticides, especially imidacloprid, have been implicated. CCD can be especially devastating since honeybees are essential pollinators of crops that constitute over one third of the U.S. food supply or $15 billion worth of food. For more information on pollinators and CCD, read our factsheet: “Pollinators and Pesticides: Escalating crisis demands actionâ€

Imidacloprid is also associated with human impacts including fatigue, twitching, salivation, convulsions, and muscle weakness, including the muscles necessary for breathing. Reproductive and mutagenic effects have also been noted, as well as elevated blood cholesterol levels and stress to the liver in dogs. Imidacloprid also persistently contaminates groundwater and soil.

EPA’s FWP for imidacloprid outlines that the agency is requiring field-based data on imidacloprid to better understand its potential impact on pollinators. It also states that EPA will be working with federal and state officials, as well as the international community and other stakeholders, to develop data and help understand the potential impact of the neonicotinoid insecticides on pollinators. To view EPA’s final work plan for imidacloprid, visit their page.

Take Action: Tell EPA that imidacloprid poses unreasonable threats to honey bees and other beneficial insects, and contaminates water supplies and soil. You can submit your comments to the docket at www.regulation.gov using docket number EPA-HQ-OPP-2008-0844.

Source: EPA Pesticide Program Updates

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15
Jul

Groups File Petition to FDA to Ban Triclosan for Non-Medical Uses

On July 14, 2009, Beyond Pesticides and Food and Water Watch submitted an amended petition to the United States Food and Drug Administration (FDA) requiring that the agency ban the use of the controversial pesticide triclosan for non-medical applications on the basis that those uses violate the Federal Food, Drug and Cosmetics Act. Strong scientific evidence suggests that pervasive use of triclosan poses imminent threats to human health and the environment.

Studies show using warm soap and water is still the best option

Studies show using warm soap and water is still the best option

“Numerous scientific studies and reports clearly indicate that in addition to its human health and environmental dangers, triclosan is not effective for many of its intended benefits and may actually be doing consumers more harm than good,” said Wenonah Hauter, executive director of Food & Water Watch. “Even worse, is that current regulations on triclosan haven’t been updated since 1994 and much of the science used by the FDA to regulate the pesticide dates back to the late 1970s and early 1980s. The agency’s inconsideration of new scientific research on triclosan represents an egregious failure to properly protect the public against this dangerous pesticide.”

Regulated by both the FDA and the United States Environmental Protection Agency (EPA), triclosan is commonly found in hand soaps, toothpastes, deodorants, laundry detergents, fabric softeners, facial tissues, antiseptics, fabrics, toys, and medical devices. Scientific studies indicate that widespread use of triclosan causes a number of serious health and environmental problems.

Chief among those issues is resistance to antibiotic medications and bacterial cleansers, a problem for all people, but especially vulnerable populations such as infants and the elderly. Triclosan is also a known endocrine disruptor and has been shown to affect male and female reproductive hormones, which could potentially increase risk for breast cancer. Further, the pesticide can also interact with other chemicals to form dioxin and chloroform, thereby exposing consumers to even more dangerous chemicals.

Due to the fact that many products containing triclosan are washed down the drain, triclosan also shows up in water systems and sewage sludge. Accumulation of the pesticide in waterways and soil has been shown to threaten ecosystems and produce hazardous residues in fish and food crops.

“Triclosan’s growth to a nearly $1 billion consumer market is indicative of the failure of the FDA to regulate unnecessary, ineffective products that are toxic to both people and the environment,” said Jay Feldman, executive director of Beyond Pesticides. “The marketing of triclosan preys on consumer fears regarding bacterial-born illness, despite the fact that scientific findings show triclosan to be no more effective than soap and water, and may actually cause more harm than good in advancing bacterial resistance.”

Triclosan is a widely used antibacterial agent found in hundreds of consumer products, from hand soap, toothpaste and deodorant to cutting boards, socks and toys. A recent study found that triclosan alters thyroid function in male rats. Other studies have found that due to its extensive use in consumer goods, triclosan and its metabolites are present in waterways, fish, human milk, serum, urine, and foods. A U.S Geological Survey (USGS) study found that triclosan is one of the most detected chemicals in U.S. waterways and at some of the highest concentrations. Triclosan has been found to be highly toxic to different types of algae, keystone organisms for complex aquatic ecosystems. A recent U.S. Environmental Protection Agency (EPA) survey of sewage sludge found that triclosan and its cousin triclocarban were detected in sewage sludge at the highest concentrations out of 72 tested pharmaceuticals.

For more information on triclosan and its impacts on human and environmental health, visit our Antibacterial program page.

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14
Jul

Take Action: Stop Proposal to Exclude Farmworkers from Health Care Coverage

(Beyond Pesticides, July 14, 2009) With language to exclude farmworkers from coverage, on July 10, 2009, Senator Kay Hagan (D-NC) introduced Senate Amendment 200 to the Affordable Health Choices Act, the health care reform bill being considered in the Senate Committee on Health, Education, Labor and Pensions (HELP). According to the advocacy group Farmworker Justice, her amendment would exclude from the definition of “employees†any “temporary or seasonal agricultural workers â€Â¦ for the purposes of determining the size of an employer.†Agricultural employers of seasonal farmworkers would not be required to participate in the system because they would be considered to be too small. Seasonal farmworkers would be denied health care coverage.

“There can be no good explanation for why Senator Hagan thinks it would be a good idea to exclude seasonal farmworkers from access to affordable health care coverage, other than that she is pandering to agricultural employers and upholding the long tradition of excluding some of America’s lowest paid and hardest working employees from the benefits that other workers receive,†said attorney Kate Woomer-Deters of the North Carolina Justice Center.

Farmworkers in the U.S. earn an average of $12,500 to $15,000 per year. They work in some of the most physically demanding and dangerous jobs, and suffer injuries and illnesses at high rates. They suffer from exposure to pesticides, nicotine poisoning during the tobacco harvest, extreme temperatures and are constantly stooping, bending, and lifting. A 2008 study by a National Institute for Occupational Safety and Health (NIOSH) researcher finds the pesticide poisoning incidence rate among U.S. agricultural workers is 31 times higher than the incidence rate found in all other industries combined. The study, “Acute Pesticide Poisoning Among Agricultural Workers in the United Sates, 1998-2005,†was published in the December issue of the American Journal of Industrial Medicine.

Take Action: Call the Capitol Switchboard, 202-224-3121, and ask for Sen. Hagan’s office. Ask Sen. Hagan to withdraw her amendment number 200 to the health care reform bill because farmworkers and their family members need health care coverage and health care reform.

Please also call your Senators on the HELP Committee. Ask them to oppose the Hagan amendment in the Senate HELP Committee to the health care reform bill, amendment number 200 that would deny seasonal farmworkers coverage under the new health care system. It is unfair, immoral and economically counterproductive.

HELP Committee Members

Democrats by Rank
Edward Kennedy (MA), Christopher Dodd (CT), Tom Harkin (IA), Barbara A. Mikulski (MD), Jeff Bingaman (NM), Patty Murray (WA), Jack Reed (RI), Bernard Sanders (I) (VT), Sherrod Brown (OH),
Robert P. Casey, Jr. (PA), Kay Hagan (NC), Jeff Merkley (OR).

Republicans by Rank
Michael B. Enzi (WY), Judd Gregg (NH), Lamar Alexander (TN), Richard Burr (NC), Johnny Isakson (GA), John McCain (AZ), Orrin G. Hatch (UT), Lisa Murkowski (AK), Tom Coburn, M.D. (OK), Pat Roberts (KS).

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13
Jul

California Governor Could Force Methyl Iodide Registration

(Beyond Pesticides, July 13, 2009) With the stroke of a pen, Governor Arnold Schwarzenegger could bow to industry interests and force the California Department of Pesticide Regulation to register a new fumigant pesticide, methyl iodide. Highly toxic, and not approved for use in California, this chemical has been given a comprehensive review by the state’s own Department of Pesticide Regulation (DPR) and found to be one of the riskiest pesticides in existence. Scientists familiar with methyl iodide are asking Mr. Schwarzenegger to let science, rather than political pressure, guide this decision.

“Methyl iodide is so toxic that scientists working with it in the laboratory take extreme precautions when handling it, using a ventilation hood, gloves, and special equipment for transferring it so it does not escape to the air,” notes Susan Kegley, Ph.D., a chemist and consulting scientist for Pesticide Action Network North America. “This degree of protection is not possible in an agricultural setting where the pesticide would be applied at rates of 175 pounds per acre in the open air. Buffer zones of 400 feet (a distance most growers would say is unworkable) for a 40-acre fumigation would still result in a dose of methyl iodide to neighbors that is 375 times higher than DPR believes is acceptable. For workers, the numbers are much worse, with exposures estimated at 3,000 times higher than DPR’s acceptable dose for some tasks.”

Methyl iodide would primarily be used on strawberries in California, affecting people in the Coastal parts of the state from San Diego and Ventura to Watsonville. Communities and farmworker advocates across the state are urging Governor Schwarzenegger to consider the serious potential impacts this chemical will have on their lives if it is permitted for use. According to Anne Katten of California Rural Legal Assistance Foundation, “People who would suffer the highest exposure to methyl iodide are among the state’s least protected: farmworkers and their families, including especially vulnerable young children and pregnant and nursing women.”

According to unnamed sources, representatives from the pesticide manufacturers and agricultural industry have been meeting with the Governor’s office to demand faster registration of Midas, a fumigation product containing methyl iodide and chloropicrin, by the end of the summer. The same sources indicate that the Governor’s office has directed DPR to register methyl iodide by a certain date, apparently regardless of DPR’s toxicological assessment or the results of a scientific peer review.

DPR’s risk assessment is on track to be peer-reviewed by a Scientific Review Panel, comprised of highly respected university scientists. Industry interests (primarily the methyl iodide manufacturer, Arysta, and select grower organizations) are now pressuring the Governor to forego the scientific review and force DPR to allow the use of methyl iodide for California’s fall fumigation season. In 2007 the Bush administration bowed to similar pressures, doctoring the science used to assess the risks of methyl iodide, and allowing it to be registered by the Environmental Protection Agency (EPA).

“California produces eighty percent of the nation’s strawberries and we lead the nation in sustainable and organic agricultural practices. CCOF (California Certified Organic Farmers) has 127 certified organic strawberry producers who do not use harmful chemicals of this sort and are successful business operations,” states Peggy Miars, Executive Director of CCOF. “Registering methyl iodide would be a big step backwards, we need to hold the line here. It’s clear from the success of organic farming practices that a replacement chemical is not what is required, instead what is needed is a greater commitment to innovation and using alternative, more ecologically integrated pest and disease control methods.”

Highly toxic and with application rates of up to 175 pounds per acre, methyl iodide has been controversial from the time EPA announced its intent to register this chemical for legal use as a pesticide. In 2007, EPA fast-tracked the registration of methyl iodide (a Proposition 65 carcinogen) for use as a soil fumigant despite serious concerns raised by a group of over 50 eminent scientists, including five Nobel Laureates. These scientists sent a letter of concern to EPA explaining, “Because of methyl iodide’s high volatility and water solubility, broad use of this chemical in agriculture will guarantee substantial releases to air, surface waters and groundwater, and will result in exposures for many people. In addition to the potential for increased cancer incidence, EPA’s own evaluation of the chemical also indicates that methyl iodide causes thyroid toxicity, permanent neurological damage, and fetal losses in experimental animals.” The letter concludes, “It is astonishing that the Office of Pesticide Programs (of EPA) is working to legalize broadcast releases of one of the more toxic chemicals used in manufacturing into the environment.”

If registered as a soil fumigant, methyl iodide would be applied primarily in California’s strawberry fields, and as a gas it would drift away from the application site, and expose neighboring residents and farmworkers in nearby fields. Methyl iodide is a threat to air and water supplies and has been linked to very serious illnesses including cancer, miscarriages, thyroid toxicity, and neurological problems.

“Methyl iodide is even more toxic than what it is supposed to be replacing. More to the point, it is entirely unnecessary, as sustainable and organic farming systems are available now,” says Brett Melone of the Agriculture and Land-Based Training Association (ALBA) in Salinas, California. “ALBA has trained hundreds of farmers to grow food — including strawberries — without chemicals in Monterey, Santa Cruz and San Benito counties. Most of the farmers ALBA works with are former farmworkers seeking a healthier work environment to grow food.”

TAKE ACTION: If you live in California, you can urge Governor Schwarzenegger to allow DPR’s evaluation process to continue as they are designed, for the protection of public health and scientific integrity. See the Pesticide Action Network of North America’s action alert for more the petition to sign on to. For more information and background on organic agriculture and alternatives to toxic pesticides like methyl iodide, visit Beyond Pesticides’ organic program page.

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10
Jul

Lawsuit to Challenge EPA for Pesticide Impacts on Polar Bears

(Beyond Pesticides, July 10, 2009) The Center for Biological Diversity notified the U.S. Environmental Protection Agency (EPA) earlier this week of its intent to file suit against the agency for failing to consider impacts to the polar bear and its Arctic habitat from toxic contamination resulting from pesticide use in the U.S. Pesticides registered by EPA for use in the U.S. are known to be transported to the Arctic via various atmospheric, oceanic, and biotic pathways. Such pesticides are biomagnified with each step higher in the food web, reaching some of their greatest concentrations in polar bears, the apex predators of the Arctic.

A body of literature demonstrates the far-reaching effects of commonly used pesticides that are suspected endocrine disruptors and persistent organic pollutants, such as atrazine, 2,4-D, lindane, endosulfan, and permethrin, on global ecosystems. These pesticides, among others, and related contaminants have been linked to suppressed immune function, endocrine disruption, abnormalities in reproductive organs, hermaphroditism, and increased cub mortality in polar bears. Human subsistence hunters in the Arctic, who share the top spot on the food web with the polar bear, also face increased risks from exposure to these contaminants.

“The poisoning of the Arctic is a silent crisis that threatens not just the polar bear, but the entire Arctic ecosystem, as well as the people and communities that live within it,†said Rebecca Noblin with the Center for Biological Diversity in Anchorage. “Because the polar bear sits at the top of the food pyramid, if we do what is necessary to protect the bear from pesticides, we will also be protecting the Arctic ecosystem and the people that depend upon it.â€

All pesticides in the U.S. must be registered by EPA before they can be lawfully used. Courts have held that the agency must examine the impacts of any pesticide it approves on species protected under the Endangered Species Act. The polar bear was listed as a threatened species under the Endangered Species Act on May 15, 2008 following a petition and litigation by the Center for Biological Diversity, but EPA has yet to examine the impacts of any approved pesticide on the species.

“The United States has lagged far behind the international community in taking action to protect the species and people of the Arctic from contaminants,†said Brendan Cummings, a senior attorney at the Center. “But with the listing of the polar bear under the Endangered Species Act, the EPA now has not just the opportunity but the legal obligation to take meaningful steps to address the poisoning of the Arctic.â€

The IUCN’s Polar Bear Specialist Group, comprised of the world’s leading polar bear scientists, met last week in Copenhagen and highlighted adverse health impacts from contaminants as one of the leading threats to the polar bear in its summary of the meeting. In addition to pesticide contamination and loss of sea-ice habitat from global warming, polar bears face threats from increased oil and gas development in their habitat and the proliferation of shipping routes in an increasingly ice-free Arctic. These activities bring heightened risk of oil spills and rising levels of noise pollution and other kinds of human disturbance.

The Center for Biological Diversity’s 60-day notice of intent to sue is a legally required precursor before a lawsuit can be filed under the Endangered Species Act to compel EPA to comply with the law.

While the action marks the first legal challenge to pesticide registrations due to their impacts on the Arctic, the Center has brought several successful lawsuits against EPA over the impacts of pesticides in the lower 48 states. In 2006 the Center reached a settlement with the agency over the use of 66 pesticides in the habitat of an imperiled amphibian in California, while last week, as a result of a settlement of another Center lawsuit, \EPA proposed restrictions on 74 pesticides due to their impacts on 11 threatened and endangered species in California.

EPA’s response to the impending lawsuit, emailed from EPA’s Mark MacIntyre to the Los Angeles Times states that, “EPA takes its responsibilities related to the Endangered Species Act seriously and is evaluating potential risks to threatened and endangered species due to pesticides in a systematic manner as part of its registration review program.”

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09
Jul

New “Natural†Brand Poses Threat to Organic Market

(Beyond Pesticides, July 9, 2009) Recent news that Dean Foods intends to launch a “natural milk†brand has organic consumers and retailers concerned. Horizon, a strictly organic brand up until now, is poised to sell products that are not certified organic. This new product category will offer conscientious consumers what appears to be a cheap alternative to organic, when in fact it is nothing more than a conventional product in a fancy package. Despite recent news that the organics industry as a whole continues to grow in this economy, encouraging consumers to steer away from the certified organic label with misleading product claims purports to devastate the organic movement and organic family farm.

“This move by Dean Foods comes at a time when organic dairy farmers around the country are in financial crisis due to a glut of milk,” says Mark A. Kastel, Senior Farm Policy Analyst at The Cornucopia Institute. “Responsible participants in this industry are using their marketing strength to ramp up organic demand. Dean has instead chosen to profiteer at the expense of the hard-working family farmers who have built this industry.”

The USDA Organic Label is intended to show consumers that the product adheres to uniform standard which meet the requirements of the Final National Organic Program Rule. An expose by The Washington Post this past week however, “Purity of Federal ‘Organic’ Label Is Questioned”, highlights some of the recent problems that the organic industry faces including the recent news by Dean Foods. Under the Organic Foods Production Act, 5% of a USDA certified organic product can consist of synthetic substances as long as the organic version is not commercially available and it is approved by the National Organic Standards Board. Instead of getting smaller, the original list of 77 substances in 2002 has grown to 245 due to lobbying efforts on the part of companies who want a piece of the organic market. You can read more about the history, standards and pesticide regulation of organic standards on our organic food program page. Provisions in the the new 2008 Farm Bill are intended to strengthen support for organic and organic transition.

It is absolutely crucial that we, as consumers, don’t play victim to this latest food-industry scam. In a national survey examining consumer perception on food labeling, Suzanne Shelton claims that people prefer â€Ëœnatural’ to â€Ëœorganic,’ believing that organic is an unregulated word used to increase the price of a product, even though the complete opposite is true. The marketing of â€Ëœnatural’ dairy products under the Horizon brand umbrella by Dean is just a ploy to further confuse shoppers.
However, explains Mr. Kastel: “Dean Foods will not be able to mention that the products are produced without pesticides, herbicides, antibiotics and other drugs, and genetically modified feed crops, or that the cows are required to graze in pastures rather than confined to factory farm feedlots. These are all factors that truly differentiate organic production from natural/conventional agricultural and livestock production.†It’s important that consumers know what the labels mean. Our publication, “Making Sure Green Consumer Claims are Truthful”, is a handy guide on how to read through these so-called “eco-labels.â€

Beyond Pesticides believes it is critical that we ensure the integrity and growth of organic practices and advocates choosing local, organic foods whenever possible. You can write a letter to Dean Foods’ Chairman Greg Engel and urge him to also ensure the integrity of organics by reconsidering this atrocious marketing ploy.

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08
Jul

UK Court Overturns Landmark Ruling on Crop Spraying

(Beyond Pesticides, July 8, 2009) Pesticide campaigner Georgina Downs’ high court victory last November, when a court ruled that there was “solid evidence†that rural residents had suffered harm from crop spraying with toxic chemicals, was overturned yesterday by the Court of Appeal. Three judges on the Court of Appeal concluded that the government has complied with its obligations under European law and that it followed guidance that gave priority to human health. The agriculture industry hailed the ruling as a victory for “common sense.â€

Georgina Downs, who lives on the edge of farmland, launched a campaign in 2001 against the Department of the Environment, Food and Rural Affairs (DEFRA), documenting and collected evidence from other rural residents reporting health problems including cancer, Parkinson’s disease and asthma believed to be linked to crop spraying. Last November, Justice Collins said there was “a very strong case for a buffer zone” between spraying and human habitation. He ruled that the government had failed to comply with a European directive to protect people from the possible harmful effects of exposure to toxic chemicals. DEFRA challenged the ruling and yesterday the Court of Appeal overturned Justice Collins’ decision.

The three judges on the Court of Appeal allowed the appeal, ruling that the department was following guidance that gave priority to human health. One judge, Lord Justice Sullivan, said that although Ms. Downs is “a most effective campaigner” she has no formal scientific or medical qualifications. On the previous ruling, which favored Ms. Downs, Lord Justice Sullivan said that the judge’s reference to “solid evidence” was substituting his own evaluation for that of DEFRA.

Ms. Downs said the appeal judges ignored her evidence and used old official reports to reach their findings. Outside the court, Ms Downs remarked, “This judgment is a complete whitewash. I think it may well go down in history as being the most bizarre and inaccurate judgment to have ever come out of the Court of Appeal. The Government could not have wished for a better result than if it wrote the judgment itself. The fact remains that there has never been any assessment for the long-term exposure for those who live, work or go to school near pesticide sprayed fields. I continue to maintain (that this) is an absolute scandal considering that crop-spraying has been a predominant feature of agriculture for over 50 years.”

Not surprisingly, the Crop Protection Association said the judgment was a victory for common sense.”Crop protection products are essential to maintain an adequate supply of high quality, affordable food,” said CPA chief executive Dominic Dyer.

Environment Secretary Hilary Benn said, “We welcome the Court of Appeal’s judgment that the government has complied with its obligations under European law, and we also welcome the public debate on this matter.†However, in spite of the ruling, Secretary Benn also said that DEFRA is considering new measures to protect the public from crop spraying, and would consult on giving people access to farmers’ records of spraying activity near their properties and providiing residents with prior notification of spraying from farmers. The consultation, according to Secretary Benn, will also cover monitoring of pesticide use, new training requirements for operators, and other issues that should be included in DEFRA’s new National Action Plan for crop spraying.

But Peter Melchett, policy director at the Soil Association said, “Whatever the Court of Appeal says, the fact is UK regulation of pesticide spraying does not take into account the safety of schools or families living next to sprayed fields.” Advocates say the same holds true in the U.S. In aerial application of pesticides, over 40 percent of the pesticide is lost to drift, while estimates put aerially applied pesticides that miss the target insect at over 90 percent.. Pesticides also drift when applied from a truck or hand held application. According to Beyond Pesticides’ report Getting the Drift on Chemical Trespass: Pesticide drift hits homes, schools and other sensitive sites throughout communities, only seven states have recognized the importance of controlling drift by restricting pesticide applications around school properties, residential areas and other sensitive sites. A recent EPA rule which includes creating or altering buffer zones, enforcing posting requirements, adding measures to protect agricultural workers, and strengthening training programs intended to reduce pesticide fumigant exposures to bystanders: people who live, work, attend school, or spend time near agricultural fields that are fumigated, fell short of adopting more stringent use restrictions and chemical bans, according to critics. Advocates, including Beyond Pesticides, criticize the agency’s buffer zone (an established non-treatment area in which it is known that chemical from the treated area drifts) provision, which can incorporate residential areas, as severely limited and question the enforceability of the standard.

Pesticides that migrate from their intended application sites can cause eye, nose, throat, or respiratory irritation, or more severe poisonings, depending on the chemical and level of exposure. Chronic exposure to some of these chemicals can also lead to lasting health effects, like cancer and developmental defects.

Source: UK Telegrapgh
The Guardian

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07
Jul

Researchers Developing Fungus-Based Insecticide

(Beyond Pesticides, July 7, 2009) Utah State University scientists are researching a fungus that eats Mormon crickets (Anabrus simplex) alive by depositing spores inside them that multiply and eventually break through their exoskeletons, according to a July 1, 2009 article in the Herald Journal. While the fungus is already providing an organic method of controlling crickets and grasshoppers in Australia, Africa and South America, exotic species laws prevent people in the U.S. from importing it. Now the USU team is searching near the U.S. border with Mexico, where they believe they will find it.

The research team, led by USU insect pathologist Donald Roberts, PhD, is analyzing 10,000 soil samples gathered by the U.S. Department of Agriculture (USDA) in 17 states. After isolating the various fungi, each is grown in the lab and tested individually on Mormon crickets. Because the Mormon cricket is actually a katydid and more closely related to grasshoppers than crickets, it could be used as an organic control on other unwanted grasshopper species.

The research team warns that while they believe the fungus will not harm fish or mammals, it could harm non-target insects. They also question its effectiveness during huge swarms and admit the fungus’s potency is impacted by weather conditions.

The so-called Mormon cricket is actually a shieldbacked katydid, and not a cricket at all. They are large insects that can grow to almost three inches in length. They live throughout western North America in rangelands dominated by sagebrush and forbs. The Mormon cricket is flightless, but capable of traveling up to two kilometers a day in its swarming phase. It prefers to eat forbs, especially cultivated crops such as alfalfa, and vegetables. The most common chemical control is carbaryl. According to an April 2009 Wall Street Journal article, residents of some small towns have been effectively using boom boxes and sound systems playing loud rock music to divert the moving swarms away from crops and houses, although it is unknown if the result is due to the music or the heavy vibrations.

In 2006, mushroom expert Paul Stamets spoke at Beyond Pesticides National Pesticide Forum in Washington, DC and discussed, among other things, the role fungi can play in controlling insects in the home. Mr. Stamets and his colleagues have been working with fungi that feed on insects, and he has figured out a way to grow fungi that delay their spore formation and actually attract the insect to the fungus, thus breaking through an obstacle in using fungi to protect homes from carpenter ants and termites. However, in doing so, he says his philosophy “is not to wage war against the insect kingdom but to enlist fungal allies for the intelligent, natural, and localized control of targeted insects… We seek balance, not extinction.â€

Watch Paul Stamets’s presentation in streaming video and read the article, “Fungi To The Rescue: Biopesticide derived from mold has promise as a greener method for eradicating unwanted insects,†in the Winter 2007 issue of Pesticides and You.

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06
Jul

EPA Proposes Pesticides Restrictions in Endangered Species Settlement

(Beyond Pesticides, July 6, 2009) Last week, the U.S. Environmental Protection Agency (EPA) proposed to formally evaluate the harmful effects of 74 pesticides on 11 endangered and threatened species in the San Francisco Bay Area over the next five years, and to impose interim restrictions on use of these pesticides in and adjacent to endangered species habitats. The proposal stems from a settlement agreement with the Center for Biological Diversity, which sued EPA in 2007 for violating the Endangered Species Act by registering and allowing the use of toxic pesticides in Bay Area endangered species habitats without determining whether the chemicals jeopardize those species’ existence.

“Tens of millions of pounds of toxic and poisonous chemicals, known to be deadly to endangered species and harmful to human health, including proven carcinogens and endocrine disruptors, are applied in the Bay Area each year, and many of those find their way through runoff or drift into our soil, creeks and rivers, San Francisco Bay, and sensitive wildlife habitats,†said Jeff Miller, conservation advocate with the Center. “The toxic stew of pesticides in the Bay-Delta has played a major role in the collapse of native fish populations, and pesticides are a leading cause of the loss of native amphibians. This agreement is a positive step for protection of some of the Bay Area’s most endangered wildlife from pesticides.â€

The 11 San Francisco Bay-area endangered species are the Alameda whipsnake, bay checkerspot butterfly, California clapper rail, California freshwater shrimp, California tiger salamander, delta smelt, salt marsh harvest mouse, San Francisco garter snake, San Joaquin kit fox, tidewater goby, and valley elderberry longhorn beetle. Similar protections were obtained by the Center for the California red-legged frog under a 2006 settlement that prohibited use of 66 pesticides in and adjacent to frog habitats statewide.

EPA is required under the Endangered Species Act to consult with the U.S. Fish and Wildlife Service on registration, re-registration and approved uses of pesticides that may endanger listed species or adversely affect their designated critical habitat. The consultation is designed to ensure that EPA avoids authorizing pesticide uses that jeopardize the existence of endangered species. EPA has consistently failed to evaluate or adequately regulate pesticides harmful to endangered species.

EPA today published a proposed settlement agreement with the Center and is taking public comment on a stipulated injunction that would establish a series of deadlines for EPA to conduct formal consultations with the Service and make “effects determinations” on 74 pesticides that may affect 11 Bay Area species listed under the Endangered Species Act. The injunction would set aside EPA’s authorization of use for each of the 74 pesticides in, and adjacent to, endangered species habitats within eight Bay Area counties (Alameda, Contra Costa, Marin, Napa, San Mateo, Santa Clara, Solano, and Sonoma) until formal consultation is completed. The consultations should result in cancellation of some pesticide uses and permanent use restrictions for harmful pesticides. EPA will make the determinations beginning October 20, 2009 and ending June 30, 2014.

The settlement includes interim pesticide-use restrictions in habitat for the 11 Bay Area species, in order to reduce the potential exposure of these species to harmful pesticides during the consultation period and Fish and Wildlife Service assessments of pesticide impacts.

Reported pesticide use in the Bay Area is about 10 million pounds annually, but actual pesticide use is estimated to be several times this amount since most home and commercial pesticide use is not reported to the state. Pesticides have been implicated in the recent collapse of Bay-Delta fish populations such as delta smelt, longfin smelt, and chinook salmon. Toxic pulses of pesticides have been documented in Bay Area streams and the Delta during critical stages in fish development, and many local water bodies are listed as “impaired†for not meeting water-quality standards due to high concentrations of extremely toxic pesticides such as chlorpyrifos and diazinon.

Numerous studies have definitively linked pesticides with significant developmental, neurological, and reproductive damage to amphibians. Pesticide contamination can cause deformities, abnormal immune system functions, diseases, injury, and death of frogs and salamanders. Studies by Tyrone Hayes, Ph.D. at the University of California have strengthened the case for banning atrazine, a potent chemical that is the most common contaminant of ground, surface, and drinking water nationwide. Dr. Hayes demonstrated that atrazine is an endocrine disruptor that “assaults male sexual development,†interfering with reproduction by chemically castrating and feminizing male frogs. Atrazine has also been linked to increased prostate cancer, decreased sperm count, and high risk of breast cancer in humans. Thousands of pounds of atrazine are used each year in the Bay Area in proximity to amphibian habitats.

In 2006, the Center published Poisoning Our Imperiled Wildlife: San Francisco Bay Area Endangered Species at Risk from Pesticides, a report analyzing the EPA’s dismal record in protecting endangered species and the agency’s ongoing refusal to reform pesticide registration and use in accordance with scientific findings. In 2004, the Center published Silent Spring Revisited: Pesticide Use and Endangered Species, detailing the decades-long failure of the EPA to regulate pesticides harmful to endangered species. EPA still has no meaningful plan to protect endangered species from pesticides.

The lawsuit, report on pesticide impacts to Bay Area species, maps of pesticide use, and information about the listed species are on the Center’s pesticides Web page.

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02
Jul

EPA Proposes Cap for DDT Contaminated Palos Verdes Shelf

(Beyond Pesticides, July 2, 2009) The EPA has just finished up with a round of public hearings on a proposed plan to cap a part of the Palos Verdes Superfund Site. This 17 square mile area of ocean floor off the Southern coast of California is home to one of the largest deposits of DDT in the U.S. Despite the fact that this chemical has been banned in the U.S. for almost four decades, there is an approximate 110 tons of DDT in the sediment of the Palos Verdes Shelf.

Concentrations of DDT and PCBs in fish continue to pose a threat to human health and the natural environment including the discovery of highly contaminated fish. In addition, a surge of additional problems with the lingering effects of DDT have risen in recent years, particularly with its buildup in our waterways. It has currently been identified as a threat to the Columbia River, as well as to the arctic. It has also been linked to a plethora of health concerns, including breast cancer, diabetes, non Hodgkin lymphoma, and autism.

Most of the contamination of the Palos Verdes Shelf is attributed to The Montrose Chemical Corporation of California. At one time this was the nation’s largest manufacturer of DDT, and it operated a plant near Torrance, California. Between the years of 1947 to 1971 the company has been charged of releasing over 1,700 tons of DDT into the LA sewer system which discharges into the Pacific Ocean from White Point. During this time, several other companies discharged PCBs into this sewer system leading to further chemical contamination of the sediment and causing serious environmental and health problems in the region.

Contamination Site of the Palos Verdes Shelf

In order to help combat this problem, the Montrose firm (which no longer operates) along with Aventis CropScience USA Inc., Chris-Craft Industries Inc., and Atkemix Thirty-Seven Inc., agreed to pay a total of $73 million towards restoration of the Palos Verdes Shelf in 2000 in a settlement with the US Department of Justice and the California Attorney General. Each of these companies either owned or operated DDT plants in LA County.

With this money, the EPA is proposing four different alternative plans and is urging the public to submit comments by July 15th 2009. The different plans are:
* Alternative 1: the “no action†alternative
* Alternative 2: institutional controls and monitored natural recovery
* Alternative 3: institutional controls, monitored natural recovery, and small cap
* Alternative 4: institutional controls, monitored natural recovery, and large cap

The EPA’s preferred plan is number 3, with institutional controls, monitored natural recovery and small cap. This cap would be an 18-inch layer of clean sand and coarse silt to cover about 320 acres of the shelf and approximately 36.5 metric tons of DDT. Alternative 4, on the other hand, would cap approximately 640 acres under an 18-inch layer of clean sand and silt, covering an estimated 54.4 metric tons of DDT. Under alternative 3, a surface water quality goal of 0.22 ng/L would be reached by 2023 while under alternative 4, it would be reached in 2019. A sediment cleanup level of 230 μg/kg DDT under alternative 3 would be reached by approximately 2039, whereas under alternative 4, it would be reached by 2031. Furthermore, under alternative 4, the PCB sediment cleanup level o f 7 mg/kg PCBs OC would be immediately met for the shelf, but not the slope of the Palos Verdes Shelf, according to the EPA, whereas PCB sediment level has not been determined for alternative 3.

The cap obviously does not clean the area, but would work by physically containing an area of the shelf in order to prevent erosion of the contaminated sediment, preventing dissolved contaminants from the sediments from flowing into the water, and by reducing the exposure of contaminants to benthic with a clean layer of sediment. Some of the reasons that the EPA states for favoring alternative 3 over 4, despite the fact that it would be more efficient and longer lasting, is because the smaller cap will cause less disruption of sediment and benthic organism habitat. It will also cost less and be less difficult to implement, overall.

If you’d like to express your opinions or concerns to the EPA regarding their cap plan, The EPA will accept written comments until July 15, 2009. These can be sent to: C.R. White (SFD-8-2) U.S. EPA, Region IX75 Hawthorne Street, San Francisco, CA 94105.

Sources: The U.S. EPA’s Proposed Plan, Associated Press

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01
Jul

Secret Ingredient in the Herbicide Roundup Kills Human Cells

(Beyond Pesticides, July 1, 2009) Researchers have found that one of the so-called “inert” ingredients in the popular herbicide product Roundup can kill human cells, particularly embryonic, placental and umbilical cord cells. Over 4,000 inert ingredients are approved for use in the U.S. and can be mixed with pesticide “active” ingredients; however these chemicals are not disclosed to consumers or users on pesticide product labels due to EPA’s intepretation (many would say incorrect interpretation) of federal pesticide law. Many inerts are classified as highly toxic, while others have not been adequately studied.

About 100 million pounds of Roundup are applied to U.S. farms and lawns every year and until now, most health studies have focused on the safety of glyphosate the active ingredient in Roundup, rather than the mixture of “inert†ingredients found in the herbicidal product. In this new study, “Glyphosate Formulations Induce Apoptosis and Necrosis in Human Umbilical, Embryonic, and Placental Cells,†researchers found that Roundup’s inert ingredients amplified the toxic effect on human cellsâ€â€even at concentrations much more diluted than those used on farms and lawns, and which correspond to low levels of residues in food or feed. One specific inert ingredient, polyethoxylated tallowamine, or POEA, was more deadly to human embryonic, placental and umbilical cord cells than the herbicide itself — a finding the researchers call “astonishing.†POEA is a surfactant, or detergent, derived from animal fat. It is added to Roundup and other herbicides to help them penetrate plants’ surfaces, making the weed killer more effective.

The researchers compared the formulations (glyphosate with POEA) with glyphosate and POEA alone. All formulations cause total cell death within 24 hours, through an inhibition of the mitochondrial succinate dehydrogenase activity, and necrosis, by release of cytosolic adenylate kinase measuring membrane damage. While glyphosate also damaged cells, the researchers found that POEA changes human cell permeability and amplifies toxicity induced already by glyphosate, through apoptosis and necrosis. POEA alone was more deadly to cells than glyphosate. The study concluded that the work clearly confirms that the adjuvants in Roundup formulations are not biologically or chemically inert. Moreover, the proprietary mixtures available on the market, according to the research, could cause cell damage and even death around residual levels to be expected, especially in food and feed derived from Roundup-treated crops, such as soybeans, alfalfa and corn, or lawns and gardens. The research team also suspects that Roundup might cause pregnancy problems by interfering with hormone production, possibly leading to abnormal fetal development, low birth weights or miscarriages.

Monsanto, Roundup’s manufacturer, contends that the methods used in the study do not reflect realistic conditions and that their product, which has been sold since the 1970s, is safe when used as directed. EPA and the U.S. Department of Agriculture both recognize POEA as an inert ingredient. POEA is allowed in products certified organic by the USDA. EPA has concluded that it is not dangerous to public health or the environment. The researchers however, believe that their results highlight the need for health agencies to reconsider the safety of Roundup.

“The authorizations for using these Roundup herbicides must now clearly be revised since their toxic effects depend on, and are multiplied by, other compounds used in the mixtures,†said Gilles-Eric Seralini, Ph.D., a University of Caen molecular biologist and lead researcher, wrote.

World controversy over the safety of the weed killer continues. In May, an environmental group petitioned Argentina’s Supreme Court, seeking a temporary ban on glyphosate use after an Argentine scientist and local activists reported a high incidence of birth defects and cancers in people living near crop-spraying areas. Scientists there also linked genetic malformations in amphibians to glyphosate. In addition, last year in Sweden, a scientific team found that exposure is a risk factor for people developing non-Hodgkin lymphoma.

Inert ingredients are often less scrutinized than active pest-killing ingredients. Since specific herbicide formulations are protected as trade secrets, manufacturers are not required to publicly disclose them. Caroline Cox, research director of the Center for Environmental Health, an Oakland-based environmental organization, says that the term “inert ingredient†is often misleading. EPA classifies all pesticide ingredients that do not harm pests as “inert,†Ms. Cox said. Inert compounds, therefore, are not necessarily biologically or toxicologically harmless.

Other inert ingredients have been found to potentially affect human health. Many amplify the effects of active ingredients by helping them penetrate clothing, protective equipment and cell membranes, or by increasing their toxicity. A study recently found that an herbicide formulation containing atrazine caused DNA damage, which can lead to cancer, while atrazine alone did not.

For years, scientists and activists have been calling for inert disclosures. In 2006, the Northwest Coalition for Alternatives to Pesticides, along with Beyond Pesticides and other allies, filed a legal petition challenging the EPA’s policy of secrecy on these inert ingredients. The court found that manufacturers are not able to protect inerts as proprietary from competitors, but only keep the ingredients secret from consumers and users. An agency decision on the issue is due this fall. A December 2006 commentary in the National Institute of Environmental Health Sciences’ journal Environmental Health Perspectives calls for improvements in pesticide regulation and “inert†ingredient disclosure, citing an extensive body of literature illustrating the concern over related human and environmental health effects. In May 2009, the California State Senate’s Health Committee passed legislation that requires the disclosure of inert ingredients in pesticides before they are approved for use by state regulators, and that provides public health agencies and emergency responders timely access to complete ingredient lists of aerial pesticides. For more about pesticide ingredients, visit “What’s in a Pesticide†by Beyond Pesticides.

Source: Environmental Health News

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30
Jun

Food Inc. Urges Consumers to Use Food Dollars for Safe and Fair Food Production System

(Beyond Pesticides, June 30, 2009) How much do we know about the food we buy at our local supermarkets and serve to our families? In Food, Inc., producer-director Robert Kenner and investigative authors Eric Schlosser (Fast Food Nation) and Michael Pollan (The Omnivore’s Dilemma) lift the veil on the U.S. food industry — an industry that has often put profit ahead of consumer health, the livelihoods of American farmers, the safety of workers, and our own environment.

The movie reveals how a handful of corporations control our nation’s food supply. Though the companies try to maintain the myth that our food still comes from farms with red barns and white picket fences, our food is actually raised on massive “factory farms†and processed in mega industrial plants. The animals grow fatter faster and are designed to fit the machines that slaughter them. Tomatoes are bred to be shipped without bruising and to stay edible for months. The system is highly productive, and Americans are spending less on food than ever before. But, the film asks, at what cost?

Cattle are given feed that their bodies are not biologically designed to digest, resulting in new strains of E. coli bacteria, which sickens roughly 73,000 Americans annually. And because of the high proliferation of processed foods derived from corn, Americans are facing epidemic levels of diabetes among adults and alarming increases in obesity, especially among children. All of this is happening right under the noses of our government’s regulatory agencies, the U.S. Department of Agriculture (USDA) and the Food and Drug Adminnistration (FDA). The film exposes a “revolving door†of executives from giant food corporations in and out of Washington D.C. that has resulted in a lack of oversight and illuminates how this dysfunctional political system often operates at the expense of the American consumer.

In the nation’s heartland, farmers are afraid to talk about what’s happening to the nation’s food supply for fear of retaliation and lawsuits from giant corporations. Our laws today are such that corporations are allowed to patent seeds for crops. As a result, Monsanto, the chemical company that was one of the major manufacturers of Agent Orange and DDT — in a span of 10 years — has landed its patented gene in 90% of the nation’s soybean seeds. Farmers are now forbidden to save and reuse these seeds and must instead buy new seed from Monsanto each season. (These “Roundup Ready” soybeans are genetically engineered (GE) to resist Roundup’s active ingredient, glyphosate, and the resulting increased pesticide use has led to weed resistance.)

Armed with a team of employees dedicated to enforcing their seed patents, Monsanto spends millions every year to investigate and sue farmers – many of whom are financially unable to fight the corporation. Such legal actions have led the state of California to pass a law protecting farmers whose fields are unknowingly contaminated by GE crops.

Food, Inc. also introduces us to courageous people who refuse to helplessly stand by and do nothing. Some, like Stonyfield Farm’s Gary Hirshberg and Polyface Farm’s Joel Salatin, are finding ways to work inside and outside the system to improve the quality of our food. Others are brave men and women who have chosen to speak out, such as chicken farmer Carole Morison, seed cleaner Moe Parr and food safety advocate Barbara Kowalcyk. Their stories, both heartbreaking and heroic, serve to demonstrate the level of humanity and commitment it takes to fight the corporations that control the food industry.

The emphasis of Food Inc. does not center on pesticide use, but it is easy to see how pesticides fit into industrial food production and the problems this film documents. The implications created by a mass-production system seem infinite: increased reliance on glyphosate to control weeds in monocultural GE corn and soybean fields; insecticides to control insects around densely packed feedlots; exposure to farmworkers who lack legal protection; and dietary exposure to a public that does not know the extent to which pesticides are used on much of their food.

It’s important to note that the filmmakers attempted to interview representatives from Monsanto, Tyson, Perdue and Smithfield, but they all declined. Food, Inc. illustrates the dangers of a food system controlled by powerful corporations that don’t want you to see, to think about or to criticize how our food is made. The film reveals how complicated and compromised the once simple process of growing crops and raising livestock to feed ourselves and our families has become. But, it also emphasizes that despite what appears to be at times a hopeless situation, each of us still has the ability to vote on this issue every day — at breakfast, lunch and dinner.

Producer Elise Pearlstein said, “I hope people will want to be more engaged in the process of eating and shopping for food. We have learned that there are a lot of different fronts to fight on this one, and people can see what most resonates with them. Maybe it’s really just “voting with their forks†— eating less meat, buying different food, buying from companies they feel good about, going to farmers markets. People can try to find a CSA — community supported agriculture — where you buy a share in a farm and get local food all year. That really helps support farmers and you get fresh, seasonal food. On the local political level, people can work on food access issues, like getting more markets into low income communities, getting better lunch programs in schools, trying to get sodas out of schools. And on a national level, we’ve learned that reforming the Farm Bill would have a huge influence on our food system. It requires some education, but it is something we should care about.”

For more information, visit Beyond Pesticides’ organic food program page.

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29
Jun

U.S. Court Upholds Ban on Genetically Engineered Alfalfa – Again

(Beyond Pesticides, June 29, 2009) Last week the United States Court of Appeals for the Ninth Circuit re-affirmed its previous decision upholding a nationwide ban on the planting of genetically-engineered (GE) Roundup Ready alfalfa pending a full Environmental Impact Statement (EIS). The Court determined that the planting of genetically modified alfalfa can result in potentially irreversible harm to organic and conventional varieties of crops, damage to the environment, and economic harm to farmers.

Although the suit was brought against the United States Department of Agriculture (USDA), Monsanto Company and Forage Genetics entered into the suit as Defendant-Intervenors. In September 2008 the Ninth Circuit affirmed the lower court’s ruling, but the Intervenors continued to press the appeal alone, requesting the appellate court to rehear the case. Last weeks decision denied that request and re-affirmed the earlier decision in full.

“This ruling affirms a major victory for consumers, ranchers, organic farmers, and most conventional farmers across the country,†said Andrew Kimbrell, Executive Director of the Center for Food Safety. “Roundup Ready Alfalfa represents a very real threat to farmers’ livelihoods and the environment; the court rightly dismissed Monsanto’s claims that their bottom line should come before the rights of the public and America’s farmers. This ruling is a turning point in the regulation of biotech crops in this country.â€

Today’s decision again upholds District Court Judge Charles Breyer’s earlier ruling of May 2007, in which he found that the USDA failed to address concerns that Roundup Ready alfalfa will contaminate conventional and organic alfalfa. The Ninth Circuit decision affirms that USDA violated national environmental laws by approving GE alfalfa without a full EIS.

In response to a government report that cited problems with the USDA’s oversight of GE crops, the Center for Food Safety along with co-plaintiff’s Beyond Pesticides, Western Organization of Resource Councils, National Family Farm Coalition, Sierra Club, Cornucopia Institute, Dakota Resource Council, Trask Family Seeds, and Geertson Seed Farms, filed the lawsuit in 2006 calling the department’s approval of GE alfalfa a threat to farmers’ livelihoods and a risk to the environment. The suit contended that the USDA improperly allowed the commercial release of GE alfalfa, the first commercial release of a GE perennial crop, and failed to analyze the public health, environmental, and economic consequences of the release. It also asserted that the GE alfalfa will likely contaminate natural alfalfa and ultimately prevent farmers from producing natural, non-GE alfalfa for markets that demand it. The suit cites the concerns of farmers with export markets. Buyers in Japan and South Korea, America’s major alfalfa export customers, have strongly stated that concerns about genetic contamination. U.S. alfalfa exports total nearly $480 million per year, with about 75% of exports going to Japan, according to 2006 data.

The GE alfalfa is designed to tolerate high doses of glyphosate, the active ingredient in Monsanto’s Roundup herbicide. However, 83% of U.S. alfalfa is grown without any herbicides, and many experts note that GE alfalfa could lead to massive increases in herbicide use on alfalfa and more chemical pollution in the environment. A study of GE soy has already shown that farmers growing the GE variety use two to five times more herbicides than farmers who plant natural soy varieties.

Scientific findings link the advent of GE crops to weeds developing resistance to glyphosate, the active ingredient in the herbicide Roundup. In turn, this weed resistance has led to increased herbicide use and forced farmers to turn to more toxic herbicides. According to the suit, USDA failed to address the potential impacts of the increased use of Roundup on alfalfa and failed to address issues relating to cross-pollination of wild relatives of alfalfa.

Alfalfa is grown on over 21 million acres, and is worth $8 billion per year (not including the value of final products, such as dairy products), making it the country’s third most valuable and fourth most widely grown crop. Alfalfa is primarily used in feed for dairy cows and beef cattle, and it also greatly contributes to pork, lamb, sheep, and honey production. Consumers also eat alfalfa as sprouts in salads and other foods.

For more information on GE crops, see Beyond Pesticides’ GE Food Pages.

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26
Jun

Weakened Climate Bill Rewards Herbicide-Intensive Farming

(Beyond Pesticides, June 26, 2009) On June 23, 2009, House Energy and Commerce Chairman Henry Waxman and House Agriculture Chairman Collin Peterson reached an agreement to include language in the American Clean Energy and Security Act of 2009 that would put the U.S. Department of Agriculture (USDA) in charge of climate change programs and farmers and other landowners for certain practices. The deal would allow carbon-polluting industries that do not meet the greenhouse gas reduction requirements to buy credits from farmers and other landowners who plant trees, install methane capture systems or practice no-till farming, which is heavily reliant on herbicides and not considered by experts to be an effective carbon sequestration strategy.

The amendment takes oversight of the programs away from the Environmental Protection Agency (EPA), a move considered a major defeat to environmental groups. Environmentalists worry that because the role of the USDA is to promote U.S. agriculture – not to protect the environment or human health, it may fundamentally undermine the effectiveness of a carbon offset program.

But, regardless of who administers the program, many are concerned that at least one of the strategies, herbicide-based no-till farming, just doesn’t work and instead should be replaced in the bill by organic practices, which have been shown to successfully sequester carbon. A 2006 study, “Tillage and soil carbon sequestration what do we really know?,†led by a USDA Agricultural Research Service (ARS) soil scientist, concludes, “Though there are other good reasons to use conservation tillage, evidence that it promotes carbon sequestration is not compelling.†On the other hand, a long-term ARS study finds that organic farming practices build soil better than chemical no-till and have more soil carbon, as well as better crop yields.

While the amendment does not specifically make payments to certified organic farmers or for organic conversion, some of the eligible practices are used by organic farmers and others are problematic, according to an analysis by the National Organic Coalition. The bill explicitly names a number of practices which are “a minimum list of what should be eligible for offsets.” These include:

* altered tillage practices
* winter cover copping, continuous cropping and other means to increase biomass returned to soil
* reduction in nitrogen fertilizer use or increase in nitrogen use efficiency
* reduction in the frequency and duration of flooding of rice paddies
* reduction in carbon emissions from organic soils
* reduction in green house gasses from manure and effluent
* reduction in green house gasses to animal management practices including dietary modifications
* manure management disposal specific:
o waste aeration (in practice, this actually could likely mean grass raised animals)
o biogas capture and combustion (manure digesters)
o field application instead of commercial fertilizer

In addition, the amendment would exempt the agricultural sector from greenhouse gas reductions and sidetrack for five years a proposed EPA regulation that requires U.S. ethanol makers responsible for greenhouse gas emissions from conversion of forests and grasslands overseas to cropland.

Aside from the Peterson compromise, there is disagreement in the environmental community over the bill as a whole. Friends of the Earth released a statement saying that Congress is squandering an historic opportunity and points out the big oil and chemical companies like Shell Oil, Dow Chemical and DuPont helped craft the bill. The Center for Biological Diversity released an analysis with the following concerns: greenhouse gas reduction target falls far short of reducing atmospheric carbon dioxide to 350 parts per million; essential Clean Air Act protections are repealed; construction of coal-fired power plants will continue; and, offsets could result in increased greenhouse gas emissions.

Twenty-two other organizations, including Sierra Club, Natural Resources Defense Council, National Wildlife Federation, Defenders of Wildlife and League of Conservation Voters sent a letter to every member of the House of Representatives urging them to support the bill. The groups said, “There are rare moments in American history when the urgency to act is clear, the stakes are high, the costs of inaction are untenable, and the need for courageous leadership is paramount. Now is one of those moments.” Twenty U.S. companies and electric utilities published full-page ads in newspapers calling for the bill’s passage as well.

Background on Agriculture and Climate Change
In general, conventional agricultural practices have contributed to climate change through heavy use of fossil fuels–both directly on the farm and in the manufacturing of pesticides and fertilizers–and through degradation of the soil, which releases carbon. The herbicide use that conventional no-till depend on, is no exception. The adoption of organic methods, particularly no-till organic, is an opportunity for farming both to mitigate agriculture’s contributions to climate change and cope with the effects climate change has had and will have on agriculture.

Research from the Rodale Institute’s Farming Systems Trial (FST) has revealed that organic, regenerative agriculture actually has the potential to lessen the impacts of climate change. This occurs through the drastic reduction in fossil fuel usage to produce the crops (approximately 75% less than conventional agriculture) and the significant increase in carbon sequestration in the soil (approximately 1000 lbs. of carbon per acre). The no-till organic methods they have developed produce comparable yields to conventional systems on average, and higher yields in drought years because of the greater water holding capacity of the organic soils.

The Rodale Institute report, Regenerative Organic Farming: A Solution to Global Warming, calls for federal ag policy to “replace the system of commodity payments with a program that rewards farmers for conservation and other carbon-enhancing farm practices. Farmers should be paid on the basis of how much carbon they can put into and keep in their soil, not only how many bushels of grain they can produce.â€

Take action
Urge your Senators and Representative to support organic farming in climate change legislation and beyond. Tell them that incentives for herbicide-intensive no-till farming will not curb climate change. For more information on organic agriculture as a solution to climate change, see Beyond Pesticides Organic Food webpage, the article “The Organic Farming Response to Climate Change” in Pesticides and You and the Rodale Institute’s Regenerative Organic Farming.

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25
Jun

Scientists Study Children’s Susceptibility to Pesticides, Urge EPA to Act

(Beyond Pesticides, June 25, 2009) Although it is known that infants are more susceptible than adults to the toxic effects of pesticides, this increased vulnerability may extend much longer into childhood than expected, according to a new study by researchers at the University of California, Berkeley. Among newborns, levels of paraoxonase 1 (PON1), an enzyme critical to the detoxification of organophosphate pesticides, average one-third or less than those of the babies’ mothers. It was thought that PON1 enzyme activity in children approached adult levels by age two, but instead, the UC Berkeley researchers found that the enzyme level remained low in some individuals through age seven. Based upon the findings, reported in the journal Environmental Health Perspectives, the study authors recommend that the U.S. Environmental Protection Agency (EPA) re-evaluate the current standards for acceptable levels of pesticide exposure.

“Current EPA standards of exposure for some pesticides assume children are three to five times more susceptible than adults, and for other pesticides the standards assume no difference,” said Nina Holland, Ph.D., UC Berkeley adjunct professor of environmental health sciences and senior author of the paper. “Our study is the first to show quantitatively that young children may be more susceptible to certain organophosphate pesticides up to age seven. Our results suggest that the EPA standards need to be re-examined to determine if they are adequately protecting the most vulnerable members of the population.”

The study, conducted by UC Berkeley’s Center for the Health Assessment of Mothers and Children of Salinas (CHAMACOS), involves 458 children from an agricultural region who were followed from birth through age seven. Cord blood samples were collected from all children to determine their PON1 genotype and to obtain baseline measures of the enzyme’s activity level.

For more than 100 of the children in the study, researchers were able to obtain at least four additional measurements – at ages one, two, five and seven – of PON1 activity. Almost all the children in the study had 2 to 3 time points assessed, for a total of 1,143 measurements of three types of PON1 enzyme activity.

One’s PON1 genotypic profile determines how effectively the enzyme can metabolize toxic chemicals. For example, people with two copies of the Q form of the gene – known as a QQ genotype – produce a PON1 enzyme that is less efficient at detoxifying chlorpyrifos oxon, a metabolite of chlorpyrifos, than the enzyme produced by people with two R forms of the gene. Similarly, individuals with two T forms of the PON1 gene on a different part of the chromosome generally have a lower quantity of the enzyme than do those with two C forms of the gene.

Previous research led by Dr. Holland found that some of the QQ newborns may be 50 times more susceptible to chlorpyrifos and chlorpyrifos oxon than RR newborns with high PON1 levels, and 130 to 164 times more susceptible than some of the RR adults.

Of the children in this latest study, 24 percent had the QQ genotype, and 18 percent had the TT genotype, both of which are associated with lower activity of the PON1 enzyme. Moreover, 7.5 percent of the children had both QQ and TT genotypes, which is considered an even more vulnerable profile. On average, the quantity of enzyme quadrupled between birth and age 7. The greatest rise in enzyme activity was among children with the RR and CC variants of the PON1 gene, which quickly outpaced the increase in children with the QQ and TT genotypes.

The fact that enzyme activity remained low for certain kids with vulnerable genotypes well past age 2 was surprising for the study authors. The researchers are continuing to collect data for these children as they grow older to see if the pesticide susceptibility continues.

“In addition to its involvement in the metabolism of pesticides, many studies are now finding that PON1 may play an important role in protecting against oxidative stress, which is linked to diseases from asthma to obesity and cardiovascular disease,” said study lead author Karen Huen, a UC Berkeley Ph.D. student in environmental health sciences. “The children in our study whose genotypes are related to lower PON1 activity may not only be more susceptible to pesticides throughout much of their childhood, they may also be more vulnerable to other common diseases related to oxidative stress.”

Notably, other studies have found that PON1 genotypes vary by race and ethnicity, with the Q variants more common among Caucasians, less common among Latinos, and least common among African Americans. The majority of the subjects in this study were Mexican-American.

“What’s important about this study is that it shows that young children are potentially susceptible to certain organophosphates for a longer period of time than previously thought,” said Brenda Eskenazi, Ph.D., UC Berkeley professor of epidemiology and director of CHAMACOS and the Center for Children’s Environmental Health Research. “Policymakers need to consider these vulnerable populations when establishing acceptable levels of exposure to different pesticides.”

Source: University of California, Berkeley

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24
Jun

Preventive Practices Work Best to Control Cockroaches

(Beyond Pesticides, June 24, 2009) An analysis of the New York City Public Housing system’s pest management practices finds that a combination of preventive management practices and least toxic pesticide options are more effective than conventional chemical-dependent practices.The analysis finds that integrated pest management (IPM)practices with a focus on sealing cracks and proper sanitation, coupled with boric acid controls cockroaches better than chemical approaches.

The study, entitled “Effectiveness of an Integrated Pest Management Intervention in Controlling Cockroaches, Mice and Allergens in New York City Public Housing,†finds that apartments utilizing integrated pest management (IPM) measures have significantly lower counts of cockroaches at three months and greater success in reducing or sustaining low counts of cockroaches at three (75 percent decline) and six months (88 percent decline). IPM was associated with a more than 50 percent drop in cockroach allergen levels in kitchens at three months, and in beds and kitchens at six months. In contrast, the number of cockroaches in buildings receiving professional exterminator visits every three to six months increased slightly. Pesticide use was reduced in apartments using IPM relative to apartments with chemical practices in place. Residents of IPM apartments also rated building services more positively. The researchers also found that that an easily replicable single IPM visit was more effective than the regular application of pesticides alone in managing pests.

According to the researchers, the New York City Housing Authority (NYCHA) is the largest public housing owner in North America with more than 405,000 low-income residents. A successful implementation of IPM in an institution of this size is thought to offer many potential benefits such as pesticide use reduction, improved pest management and reduced pest and allergen burdens in housing populated by largely Black and Hispanic families with disproportionately high prevalence of asthma- which is mostly attributed to pest allergens.

In the study, 323 apartments were evaluated. The practices include mechanical and steam cleaning using soap on kitchen cabinets, stoves, refrigerators, floors and countertops, and bathroom floors and fixtures. Practices also include the use of latex caulk to seal cracks and crevices, gaps within kitchen cabinets and between the cabinets and wall, gaps and cracks in baseboards, plumbing joints, and other potential ports of entry for pests; and boric acid and cockroach baits were applied. Apartment residents were instructed to store open food in sealed containers, cover garbage containers with a tight-fitting lid, and dispose of garbage frequently. Residents were also provided with a covered garbage container, food storage containers and cleaning supplies, including sponges, soap, powdered cleanser, and degreasing solution. Residents were also instructed not to use aerosol/spray pesticides for the duration of the study. No repeat IPM visits were scheduled. Cockroach populations were monitored with pheromone glue traps, three and six months later.

This study is the first to show that a single, short, low-cost visit by housing authority workers to address the underlying source of pests can be more effective at controlling cockroaches and their allergens in buildings than repeated professional pesticide applications. However, other studies also found that IPM techniques are effective, especially in the long-term, against pests.

According to Beyond Pesticides, a properly implemented and clearly defined IPM program is a vital tool that aids in the rediscovery of non-toxic methods to prevent pests and facilitates the transition toward a pesticide-free (and healthy) world. IPM involves utilizing a variety of methods and techniques, including cultural, biological and structural strategies to prevent a multitude of pest problems. IPM includes resident education, proper sanitation, sealing cracks and crevices, monitoring pests and utilizing the least toxic chemical options, (e.g. boric acid, diatomaceous earth) only if necessary. For more information on IPM, read Beyond Pesticides’ report Ending Toxic Dependency:The State of IPM, and IPM webpage.

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