(Beyond Pesticides, August 31, 2010) As the Environmental Protection Agency (EPA) continues its review of the popular herbicide atrazine, a new study shows that male rats prenatally exposed to low doses of the gender-bending chemical are more likely to develop prostate inflammation and to go through puberty later than non-exposed animals. The research adds to a growing body of literature on atrazine, an herbicide used in agriculture, especially in corn and sugar cane production, and on golf courses and residential lawns. Atrazine and its byproducts are known to be relatively persistent in the environment, potentially finding their way into water supplies. It has been linked to a myriad of health problems in humans including disruption of hormone activity, birth defects, and cancer. The research, “Effects of prenatal exposure to a low dose atrazine metabolite mixture on pubertal timing and prostate development of male Long-Evans rats,” which is available online and will be featured on the cover of Reproductive Toxicology (Vol. 30, # 4), found that the incidence of prostate inflammation went from 48 percent in the control group to 81 percent in the male offspring who were exposed to a mixture of atrazine and its breakdown products prenatally. The severity […]

(Beyond Pesticides, August 30, 2010) AquaBounty Technologies Inc.. a small biotechnology firm based in Waltham, Massachusetts, is seeking FDA approval for a genetically engineered salmon, hoping to do for aquaculture what biotech giants such as Monsanto have done for agronomy. Currently, the vast majority of US soybeans, corn, and cotton are genetically engineered, but this would be the first commercially available genetically engineered food animal. While AquaBounty argues their fish will help feed the world, many are leery of “frankenfish” being introduced into the food supply. If the proliferation of genetically engineered crops in the U.S. is any indication, the introduction of genetically engineered animals into the food supply will fail to produce an increase in yield. AquaBounty has invested $50 million over 14 years to develop AquAdvantage Fish. AquAdvantage Salmon (AAS) unlike conventional salmon grows year around reaching market weight in 18 months instead of 36, and consuming 25% less food over its lifetime. The variety was developed by inserting part of a gene from an Ocean Pout, an eel-like fish, into the growth gene of a Chinook salmon. The blended genetic material is then injected into the fertilized egg of a North Atlantic salmon. According to AquaBounty CEO […]

(Beyond Pesticides, August 26, 2010) While proponents of organic farming often speak of nature’s balance in ways that sound almost spiritual, a new study provides additional scientific evidence to back-up this world view. Ecologists from the University of Michigan and the University of Toledo have uncovered a web of intricate interactions that buffers the farm against extreme outbreaks of pests and diseases, making highly toxic magic bullets unnecessary. This latest study adds to the list of benefits provided by organic agricultural methods, which include: healthier food, a less toxic work environment for farmers and farmworkers, a source of carbon sequestration (which combats climate change), higher yields in drought conditions, and a healthier environment. The 10-year study, “Ecological Complexity and Pest Control in Organic Coffee Production: Uncovering an Autonomous Ecosystem Service,” is published in the July/August issue of the journal BioScience. According to the study, the major players in the system ””several ant species, a handful of coffee pests, and the predators, parasites and diseases that affect the pests”” not only interact directly, but some species also exert subtle, indirect effects on others, effects that might have gone unnoticed if the system had not been studied in detail. A key species […]

(Beyond Pesticides, August 26, 2010) Researchers from Indiana University have detected organochlorine pesticides and flame retardants in blood samples taken from bald eagle nestlings in the Great Lakes region. After DDT was banned, many scientists expected the bald eagle population to recover more quickly, so this study provides some evidence to explain their lackluster rebound. The researchers found not only organochlorines and PCBs (polychlorinated biphenyls), but several flame retardants commonly used in foam padding, such as pentabromoethylbenzene (PBEB), hexabromocyclododecanes (HBCDs) and Dechlorane Plus (DP). The paper, published in the August issue of the scientific journal Chemosphere was authored by Marta Venier of Indiana University. Ms. Venier and her colleagues collected blood samples by climbing trees to access the nests, carrying the nestlings carefully to the ground, and drawing a small blood sample before returning them to their nests. The statistically significant relationship between the total PBDE concentrations and total PCB concentrations suggest that these young eagles are ingesting pesticides and flame retardants through their food. Even low levels of these chemicals could be advsersely affecting the eagle population because as co-author of the study, Ronald Hites of Indiana University says, “Eagles are very vulnerable to chlorinated compounds.” Chlorinated materials are […]

(Beyond Pesticides, August 25, 2010) Exposure to pesticides while in the womb may increase the odds that a child will have attention deficit hyperactivity disorder (ADHD), according to researchers at the University of California-Berkeley School of Public Health. Maternal metabolites of organophosphate pesticides have previously been associated with neurobehavioral deficits in children. The California researchers are studying the impact of environmental exposures on the health of women and children who live in the Salinas Valley, an agricultural region with heavy pesticide use. They tested the urine of pregnant women for pesticide residue, and then tested the behavior of their children at ages 3 ½ and 5. The 5-year-olds who had been exposed to organophosphate pesticides while in the womb have more problems with attention and behavior than did children who were not exposed. Results are published online in the study entitled, “Organophosphate Pesticide Exposure and Attention in Young Mexican-American Children,” in the journal, Environmental Health and Perspectives. Previous studies have shown that exposure to some organophosphate compounds cause hyperactivity and cognitive deficits in animals. One study published in Pediatrics earlier this year found that exposure to organophosphates in developing children might have effects on neural systems and could contribute to […]

(Beyond Pesticides, August 24, 2010) Update: The Healthy Schools Act of 2010 (SB 1157) passed the State Assembly, but on September 29, 2010, Governor Schwarzenegger vetoed the bill which would have required all schools in California to adopt integrated pest management (IPM), using the least hazardous pesticides available. Environmental and public health groups will continue to work on the issue. Grassroots organizations in California predict that the Healthy Schools Act of 2010 (SB 1157), a bill that would require least-toxic integrated pest management (IPM) in all California schools, could be voted on by the full State Assembly within the coming days. Environmental and public health groups are encouraging California residents to contact their members of the State Assembly, asking them to pass SB 1157 with mandatory least-toxic IPM and a mechanism for strong enforcement. In other news relating to California schools and public health, a coalition of state environmental justice organizations sent a letter to the Los Angeles Unified School District (LAUSD) expressing concern over the building of an elementary school that will serve primarily low-income students on top of a contaminated site. There is also concern that, because California’s school siting policy is considered the strongest in the country, […]

(Beyond Pesticides, August 23, 2010) While on vacation in Martha’s Vineyard, President Obama will be returning to the organically-managed Vineyard Golf Club, where he played while on vacation last year. While golf courses around the country have begun to incorporate organic techniques and reduce pesticide use, the exclusive club is believed to be the only completely organic golf course in the country, meaning that synthetic pesticide, fertilizer, or other chemical treatment is strictly forbidden. American golf courses hold themselves to a high standard, when it comes to maintaining the thick perfectly manicured and weed free turf on greens and fairways. To attain this standard golf course managers rely on a toxic assortment of synthetic fertilizers, herbicides, insecticides, fungicides, and other chemicals. These practices have been linked to numerous diseases in humans including cancer, as well as damage to local wildlife. Jeff Carlson, the superintendent of the Vineyard golf club recalls one of his earlier jobs where he used mercury based fungicides, soon his wife’s hair started to fall out from mercury poisoning. Environmentalists and human health advocates have mounted strong opposition to the creation of new golf courses. In recent years however golf course managers have begun to work with […]

(Beyond Pesticides, August 20, 2010) Behind closed doors this past Monday, the U.S. Environmental Protection Agency (EPA) and Bayer CropScience reached an agreement on a set of measures to gradually reduce and ultimately ban fully the use of the insecticde aldicarb in the U.S. This decision arrives on the heels of a revised risk assessment in which EPA found that babies and children under the age of five can ingest levels of the insecticide through food and drinking water at levels that exceed limits that the agency finds safe, and 25 years after 2,000 people fell ill after eating watermelons that were tainted with the pesticide. Though Beyond Pesticides applauds any decision to remove toxic chemicals from the environment, the problem with this cancellation, as with virtually all voluntary cancellations, is that the chemical can be legally used for years —eight years in this case — leaving open the opportunity for continued human and environmental exposure and harm. The decision was reached after EPA completed a revised risk assessment indicating that the pesticide does not meet the agency’s food safety standards. EPA scrutinized recent food consumption data from USDA to complete the risk assessment, which considered the percent of the […]

(Beyond Pesticides, August 19, 2010)

(Beyond Pesticides, August 18, 2010) A new law to improve water quality makes it illegal for stores in New York to stock fresh supplies of household dishwasher detergents that contain phosphorus. Stores have 60 days to sell old inventories. Sales for commercial use are to end July 1, 2013. Starting in 2012, a similar ban will apply to lawn fertilizers. The Household Detergent and Nutrient Runoff Law, signed into law by the Governor David Paterson on July 15, 2010, aims to improve water quality in New York by reducing phosphorus runoff into the State’s waterbodies. Environmental officials say phosphorus drains into New York lakes and rivers, which turn green with algae, degrading drinking water and reducing oxygen that fish need. More than 100 bodies of water in the state are considered impaired, including Cayuga Lake and Lake Champlain. With similar measures now effective in 16 other states, including neighboring Vermont and Pennsylvania, many detergent makers produce low-phosphate formulas. Consumer tests show some are cleaning better than even earlier detergents considered environmentally friendly. “The impact of phosphorus is particularly significant in lakes and reservoirs. Over half of all the lake acres in the state have water quality impacts for which phosphorus […]

(Beyond Pesticides, August 17, 2010) A federal appeals court has revived the fraud and negligent misrepresentation claims by blueberry farmers in New Jersey, who say that a pesticide made by Novartis Crop Protection, Inc. reacted badly with fungicides and ruined their crops. Declaring that the lower court improperly dismissed the farmers’ state law claims as preempted by the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), the federal court concluded that farmers were not suing over the alleged flaws in the warning label-which is federally regulated -rather were complaining about misrepresentations in Novartis’ marketing brochure. The case, Indian Brand Farms Inc. v. Novartis Crop Protection Inc. was filed in the 3rd U.S. Circuit Court of Appeals in New Jersey. Blueberry farmers said Novartis should have warned them that a new version of its pesticide, including diazinon as the active ingredient, also included a surfactant that reacts badly with fungicides. The promotional brochure failed to mention this reaction and when farmers mixed the diazinon pesticide with the fungicides Captan and Captec, it caused phytotoxic damage, including blotches, depressions and spots, and in some cases killed their plants. It was not clear to the appeals court that the practice of combining pesticides with […]

(Beyond Pesticides, Aug 16, 2010) A recently released study conducted by the National Institutes of Environmental Health Sciences shows government agencies may be underestimating children’s dietary exposure to pesticides and, therefore, the inherent risks to children’s health. The study, “Assessing Children’s Dietary Pesticide Exposure- Direct measurement of Pesticide Residues in 24-Hour Duplicate Food Samples” lead by Dr. Chensheng Lu, examines the pesticide residues in foods consumed by children in a study group and builds on a previous study published in 2008 entitled “Dietary Intake and Its Contribution to Logitudinal Organophosphorus Pesticide Exposure in Urban/Suburban Children.” The 2008 study examined the concentrations of organophosphate pesticides in the bodies of children who consumed a diet of conventional produce and then switched to a diet of organic produce. The study examined two groups of 23 children ranging in age from 3 to 11, in Seattle, Washington and Atlanta, Georgia. Researchers measured the concentrations of malathion, chlorpyrifos, and other organophosphate pesticide metabolites in the children’s urine. These pesticides have no residential uses, and because all children in the study group live in urban or suburban areas, researchers assumed that all exposure to these pesticides were the result of diet. The children were then fed […]

(Beyond Pesticides, August 13, 2010) A new study finds that silver nanoparticles, which are used in consumer products and in hospitals for their antimicrobial properties, can harm plant life when it enters into the natural environment. Where silver nanoparticles are present in the soil, plant species are reduced by 22 percent, with an additional 20 percent reduction of microbial biomass, as compared to those plants without the presence of nanoparticles. Researchers applied biosolids with silver nanoparticles into the soil of plants growing in intermediate sized rubber tubs, using a concentration within the range that the U.S. Environmental Protection Agency (EPA) has reported finding in biosolids from a recent survey. “There have been a lot of lab studies looking at silver nanoparticles showing that they are highly toxic to bacteria, fungi, other microorganisms,” explained Ben Colman, PhD to Scientific American. Dr. Coleman is a postdoctoral researcher at Duke University who led the study. “Most of these studies have been conducted in very simple lab settings, [with] one species of bacteria””often the “lab rat” of the bacteria world, E [scherichia]. coli ””[in] a test tube with very simple media and nanoparticles. So we wanted to move beyond this because it’s really hard […]

(Beyond Pesticides, August 12, 2010) In an effort to convince NStar Electric and Gas Corporation to stop using herbicides on rights-of-way, like-minded environmental activists, citizen groups and business owners formed a coalition on Cape Cod: “Cape Cod for a Truly Green NSTAR.” Due to the increased pressure from local activists and residents, NStar made an agreement with regionally planning authority, Cape Cod Commission to postpone the use of herbicides on rights-of-way until 2011. The Commission reasoned that with more time, Cape towns could develop maps to identify areas and drinking water supplies more sensitive to herbicide use. Several organizations and business have signed on to the coalition in support of a ban on herbicides along rights-of-way, such as Clean Water Action, Cape Cod Organic Gardeners, the Massachusetts Breast Cancer Coalition, and the Sierra Club (see the full list online). Ever since NStar started using herbicides in 2004, local residents have worried about potential contamination of the Cape’s underground drinking water supply. Even though NStar has a “green” commitment statement on its website, pledging to lessen impacts to the environment as much as possible, the coalition argues that the company’s use of herbicides on rights-of-way violates this promise. NStar representative Michael […]

(Beyond Pesticides, August 11, 2010) Independent tests of sewage sludge-derived compost from the Synagro CVC plant -distributed free to gardeners since 2007 by the San Francisco Public Utilities Commission (PUC) in their “organic biosolids compost” giveaway program — have found appreciable concentrations of contaminants with endocrine-disruptive properties. These contaminants include polybrominated diphenyl ether (PBDE) flame retardants, nonylphenol detergent breakdown products, and the antibacterial agent triclosan. The independent tests were conducted for the Food Rights Network by Robert C. Hale, PhD of the Virginia Institute of Marine Sciences. The antibacterial triclosan, an endocrine disruptor, was also found in the sewage sludge compost, at an average of 1,312 ng/g (or ppb). Last week, the Centers for Disease Control updated their National Report on Human Exposure to Environmental Chemicals and noted that triclosan levels in people increased by over 41% between just the years 2004 and 2006. Also last week, a scientific paper showed that triclosan from sewage sludge can be taken up by soybean plants and translocated into the beans themselves, then consumed by people and animals. PBDEs are persistent and bioaccumulate in the environment and elevated levels have been found in California citizens. The average total of the PBDE congeners tested […]

(Beyond Pesticides, August 10, 2010) Senator Blanche Lincoln (D-AR), Chair of the Senate Committee on Agriculture, Nutrition, and Forestry, and Ranking Member Saxby Chambliss (R-GA) introduced legislation on August 6, 2010 that would strip the public of the protection provided by the Clean Water Act (CWA) from the toxic hazards of pesticides applied to or near U.S. waterways. If successful, the bill, S. 3735, would nullify regulations that require pesticide applicators apply for National Pollutant Discharge Elimination System (NPDES) permits under CWA before applying pesticides on or near surface waters. Beyond Pesticides encourages its members to contact their Senators and let them know how they feel about S. 3735. Senators Lincoln and Chambliss say that because pesticides are registered under the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) additional regulation is unnecessary and the legislation will reduce the burden on farmers, foresters and ranchers. Environmentalists argue that CWA is more protective, and pesticides should be regulated under both statues to improve protections for human health and the environment. CWA uses a health-based standard known as maximum contamination levels to protect waterways and requires permits when chemicals are directly deposited into rivers, lakes and streams, while FIFRA uses a highly subjective […]

(Beyond Pesticides, August 9, 2010) Two separate findings that showcase increased exposure and potential for exposure in humans to the toxic chemical triclosan add to the mounting evidence that the non-medical use of this chemical should be banned. Newly released data from the Centers for Disease Control and Prevention (CDC) finds that levels of triclosan in humans have increased by 50% since 2004. Moreover, a study by the University of Toledo shows that triclosan and triclocarbon, a similar compound, can enter the food chain through use of contaminated water or fertilizer on agricultural crops. CDC’s updated National Report on Human Exposure to Environmental Chemicals finds that the 50% increase in levels of triclosan is across all demographics in the U.S. population. Data was collected on the concentration of triclosan in urine. Affluent people and those over the age of 20 have the highest concentrations of triclosan in their urine. The study released by the University of Toledo, “Uptake of Pharmaceutical and Personal Care Products by Soybean Plants from Soils Applied with Biosolids and Irrigated with Contaminated Water,” examines the potential for crops to take up contaminants such as triclosan from water or fertilizer. Conventional crops are often fertilized with sewage […]

(Beyond Pesticides, August 6, 2010) Organic farmers and gardeners across a Washington state county suspect that herbicide-contaminated manure and compost obtained from non-organic farms and dairies are responsible for severe crop loss reported throughout the region, raising questions about the adequacy of the U.S. Environmental Protection Agency’s (EPA) pesticide registration process. Tests of soil and tissue samples of local dairy manure that is used in soil and compost mixtures revealed small amounts of aminopyralid, a potent and persistent herbicide approved for use by EPA in 2005. Aminopyralid is generally used for weed control in pastures and fields that grow silage crops for dairy cows. When cows eat the grass that has been treated with the chemical, it passes through them unchanged and remains in their manure in concentrations that can still be high enough to damage broadleaf crops if the manure is used to fertilize them. Aminopyralid is produced by Dow AgroSciences, a subsidiary of Dow Chemical Co., and often manufactured under the product name Milestone. Former coordinator of the Washington State University master gardeners’ program Jill Cotton has noticed the damage in her garden and said reports continue to filter in from other gardens around the county. One Whatcom […]

(Beyond Pesticides, August 5, 2010) A 400-year old large old grape vine considered to be the nation’s oldest in Manteo, North Carolina and known lovingly as “Mother Vine,” is slowly recovering from a powerful dose of herbicide sprayed by a utility company. The Virginia-based Dominion Power Company contracted Lewis Tree Service to spray power poles along the roads in the Manteo in May. The herbicide they used, Garlon3A, was accidentally sprayed on a tiny shoot from the vine that had grown a few feet up a pole on 84-year old Jack Wilson’s property. Unaware of the recent herbicide spraying by the utility power company, he noticed various brown, dead sections that began to appear in the plant in May. Not only did the vine suffer, but about 10 feet of a nearby hedge died, along with three limbs of a large pecan tree that had to be trimmed. The active ingredient in Garlon 3A, a Dow Chemical product, is triclopyr. It is a systemic herbicide which means that the poison spreads from the ends of the vine back toward the root. As a broadleaf weed killer, triclopyr is frequently used along rights-of-way and on industrial sites. In laboratory tests, triclopyr […]

(Beyond Pesticides, August 4, 2010) Several coastal towns in Maine, concerned about water contamination and the potential for the effects on aquatic life, have adopted restrictions on lawn chemicals. Pesticide opponents praise towns for cutting back on pesticide use but say that a ban on private use would make a bigger difference. Ogunquit is among the growing number of Maine towns that are restricting the use of lawn chemicals from municipal property because of environmental and public health concerns. About two dozen other communities have adopted some form of pesticide limits, including Brunswick, Castine and Harpswell. There are common traits among the towns that are limiting pesticides. They tend to have affluent residents that do more lawn care applications employing lawn care companies. Mike Horn, chair of Ogunquit’s Conservation Commission, helped to guide the pesticide restriction to passage at last year’s town meeting. Mr. Horn is worried about lawn chemicals such as phoshorous and nitrogen running downhill during rain. “What is going to happen if this level of pesticides just continues to rise and people’s lawns are just running, you’re just putting a big nail in Mother’s nature’s foot,” said Mr. Horn. He added that by protecting the environment, the […]

(Beyond Pesticides, August 3, 2010) A new study shows that due to a flaw in standard risk assessments, which consider toxic effects at fixed exposure times, the risks posed by the neonicotinoid pesticides imidacloprid and thiacloprid are likely to be underestimated. The authors believe that minute quantities of imidicloprid may be playing a much larger role in killing bees over extended periods of time than previously thought. The study, “The significance of the Druckrey—Küpfmüller equation for risk assessment””The toxicity of neonicotinoid insecticides to arthropods is reinforced by exposure time,” was published online July 23, 2010 in the journal Toxicology. The authors believe that standard risk assessment calculations underestimate toxicity because they do not accurately account for the interplay of time and level of exposure. According the study: The essence of the Druckrey—Küpfmüller equation states that the total dose required to produce the same effect decreases with decreasing exposure levels, even though the exposure times required to produce the same effect increase with decreasing exposure levels. Druckrey and Küpfmüller inferred that if both receptor binding and the effect are irreversible, exposure time would reinforce the effect. The Druckrey—Küpfmüller equation explains why toxicity may occur after prolonged exposure to very low toxicant […]

(Beyond Pesticides, Aug 2, 2010) A new report conducted by an Ann Arbor, Michigan based coalition of health and environmental groups estimates that children’s exposure to toxic chemicals, including pesticides, cost Michigan billions of dollars each year. The study examines the costs associated with four environmentally related childhood diseases: lead poisoning, asthma, pediatric cancer, and neurodevelopmental disorders. Treating these four disorders costs the state of Michigan an average of $5.85 billion annually. The study, “The Price of Pollution: Cost Estimates of Environment-Related Childhood Disease in Michigan” was released in time for the US House Energy and Commerce Committee hearings on the Toxic Chemicals Safety Act of 2010, an overhaul of the 1976 Toxic Substances Control Act (TSCA). Using conservative estimates researchers consider direct costs such as medical treatment, as well as less direct costs such as parent wage losses. The study also notes the substantial emotional costs to families dealing with these potentially life threatening or debilitating conditions which cannot be quantified. Lead poisoning is found to be the most costly of the diseases studied, costing on average $4.85 billion annually, followed by childhood asthma, pediatric cancer, and neurodevelopmental disorders. These four disorders alone cost the state of Michigan 1.5% […]