(Beyond Pesticides, July 18, 2013) A few months after the groundbreaking decision to suspend the use of three neonicotinoids shown to be highly toxic to bees, the European Commission is moving forward again with a proposal to restrict the use of the insecticide fipronil, which has also   been identified as posing an acute risk to honey bees. The proposal is backed by a Member State experts meeting in the Standing Committee on Food Chain and Animal Health. This proposal follows a European Food Safety Authority (EFSA)  scientific risk assessment, published on May 27, 2013, which found that seeds treated with pesticides containing fipronil pose an acute risk to Europe’s honey bee population. According to this assessment, it was found that fipronil poses a high acute risk to honeybees when used as a seed treatment for corn. Specifically, EFSA concluded that high acute risk from dust drift resulting from treated corn exists, and identified several data gaps and study limitations for other field crops. Data on nectar and pollen could not be evaluated. 23 Member States supported the fipronil restriction, 2 Member States voted against and 3 Member States abstained during the standing committee vote. This latest EU-wide restriction comes […]

(Beyond Pesticides, July 12, 2013) New research concludes that exposure to a combination of both arsenic and estrogen, at levels U.S. Environmental Protection Agency (EPA) considers “safe” for humans, can cause cancer at elevated levels in prostate cells. Texas Tech University researchers revealed that humans exposed to a combination of both toxicants were almost twice as likely to develop cancerous cells in their prostate. The study is published in the peer-reviewed journal The Prostate. While it is established that both arsenic and estrogen can cause cancer, the research raises concerns about the dangers of chemicals in combination, and the efficacy of regulations that are established by testing one chemical at a time. Kamaleshwar Singh, PhD., is an assistant professor at the Institute of Environmental and Human Health at Texas Tech. “The majority of cancers are caused by environmental influences,” Dr. Singh remarked to Texas Tech Today, “Only about 5 to 10 percent of cancers are due to genetic predisposition. Science has looked at these chemicals, such as arsenic, and tested them in a lab to find the amounts that may cause cancer. But that’s just a single chemical in a single test. In the real world, we are getting exposed […]

(Beyond Pesticides, July 12, 2013) New research concludes that exposure to a combination of both arsenic and estrogen, at levels U.S. Environmental Protection Agency (EPA) considers ”safe” for humans, can cause cancer in prostate cells. Texas Tech University researchers revealed that humans exposed to a combination of both toxicants were almost twice as likely to develop cancerous cells in their prostate.   The study is published in the peer-reviewed journal The Prostate. While it is established that both arsenic and estrogen can cause cancer, the research raises concerns about the dangers of chemicals in combination, and the efficacy of regulations that are established by testing one chemical at a time. Kamaleshwar Singh, Ph.D., is an assistant professor at The Institute of Environmental and Human Health at Texas Tech. “The majority of cancers are caused by environmental influences,” Dr. Singh remarked to Texas Tech Today, “Only about 5 to 10 percent of cancers are due to genetic predisposition. Science has looked at these chemicals, such as arsenic, and tested them in a lab to find the amounts that may cause cancer. But that’s just a single chemical in a single test. In the real world, we are getting exposed to many […]

(Beyond Pesticides, June 28, 2013) The U.S. Environmental Protection Agency (EPA) released a draft “State of the Science” report last week acknowledging that low dose responses “do occur in biological systems” while defending its current risk assessment procedures as adequate for evaluating low dose effects. This report comes after EPA’s long running failure to fully implement a 1996 Congressionally mandated program to evaluate endocrine disruptors, and heavy criticism last year from prominent scientists who said EPA’s testing procedures are outdated. In 1999 the Natural Resources Defense Council (NRDC) filed a lawsuit against the EPA for failing to meet a statutory deadline for implementation of the Endocrine Disruptor Screening Program (EDSP) required under the 1996 Food Quality Protection Act, forcing the EPA to make a settlement agreement. As a result of  NRDC et al. v. EPA (No. C-99-03701 CAL) filed in the Northern District of California, EPA agreed to start requiring screening and testing of certain chemicals varying by date, using a tiered system. EPA’s two-tiered screening and testing system, requires that EPA will identify which chemicals are able to interact with the endocrine system in Tier 1. Tier 2 screening process was designed to go one step further, requiring EPA […]

(Beyond Pesticides, June 21, 2013) A scathing new investigative report shows that atrazine manufacturer, Syngenta Crop Protection, launched an aggressive multi-million dollar campaign in response to a class action lawsuit that threatened to remove the controversial herbicide atrazine  from the market. The report reveals that the pesticide giant routinely paid “third-party allies” to appear to be independent supporters, keeping a list of 130 people and groups it could recruit as experts without disclosing ties to the company. The company, the report finds,  also purportedly hired a detective agency to investigate scientists on a federal advisory panel, looking into the personal life of a judge and commissioning a psychological profile of Tyrone Hayes, PhD, one of the leading scientists critical of atrazine, whose research finds that atrazine feminizes male frogs. Recently unsealed court documents reveal a corporate strategy to discredit critics and to strip plaintiffs from the class action case. 100Reporters, a nonprofit investigative journalism group, obtained the documents from the lawsuit in a Freedom of Information Act (FOIA) request. The campaign is spelled out in hundreds of pages of memos, invoices, and other documents from the  Illinois’ Madison County Circuit Court, which were initially sealed as part of a 2004 […]

(Beyond Pesticides, June 19, 2013) The Director of the National Institute of Environmental Health Sciences (NIEHS), Linda Birnbaum, PhD, is being criticized by some Republicans for authoring an article that describes linkages between endocrine disrupting chemicals and the onset of disease, as well as the need to understand and monitor the effects of these chemicals. Instead of encouraging efforts for greater understanding of these chemicals, the members of Congress instead blasted the article as a potential breach of National Institutes of Health (NIH) policy. NIEHS, a program of NIH, seeks to reduce the burden of human illness and disability by understanding how the environment influences the development and progression of human disease. The short article entitled, “When environmental chemicals act like uncontrolled medicine,” published online on May 7, 2013, in Trends in Endocrinology and Metabolism, lays out the case that environmental chemicals can produce unwanted endocrine effects, leading to an increase in certain diseases.  It states, “In the same way as physicians endeavor to understand and monitor the effect of medicines on endocrine pathways, we ought to achieve the same understanding and control of the effects on environmental chemicals.” Dr. Birnbaum also notes, “The proliferation of inadequately tested chemicals in […]

(June 10, 2013, Beyond Pesticides) The Washington State Department of Agriculture (WSDA) on June 6 rejected a petition by Thurston County Commissioners to restrict sale, use and application of neonicotinoid insecticides. On April 8, 2013, the Commissioners requested the action by WSDA because of concerns about the effect of neonicotinoid insecticides on honey bee colony health. The Commissioners were acting on “substantial bee colony loss in 2012” reported by the Olympia Beekeepers Association. In its request, the Commissioners asked the state to implement a “restriction on the purchase, sale, distribution and application of the neonicotinoid class of insecticides for ornamental use to persons or entities with a valid WSDA pesticide applicator license” and indicated that “immediate action on a local level is appropriate and necessary.” Beyond Pesticides wrote a letter of support in favor of the petition. Neonicotinoids are a relatively new class of insecticides that share a common mode of action that affect the central nervous system of insects, resulting in paralysis and death. They include imidacloprid, acetamiprid, clothianidin, dinotefuran, nithiazine, thiacloprid and thiamethoxam. According to the EPA, uncertainties have been identified since their initial registration regarding the potential environmental fate and effects of neonicotinoid pesticides, particularly as they […]

(Beyond Pesticides, May 15, 2013) Recent public outcry over atrazine contamination of drinking water supplies on Long Island has pressured pesticide, herbicide, and fungicide manufacturer Makhteshim Agan of North America (MANA) to restrict the sale, use, and distribution of the toxic chemical. The move has been lauded by environmental advocacy groups, including Citizens Campaign for the Environment (CCE). “Atrazine is a dangerous chemical that poses an unacceptable risk to public health and the environment on Long Island,” said Adrienne Esposito, CCE Executive Director. “Removing this product from the shelves is an essential first step in protecting Long Island drinking water from unnecessary pesticide contamination. We are delighted by this news.” Unfortunately, stores will continue to sell its atrazine inventory until MANA implements the anticipated restriction date of spring of 2014. Atrazine is one of the most commonly used herbicides in the world and is used on most corn, sugarcane and sorghum acreage in the United States; and can also be used on golf courses and residential lawns. In the U.S. alone, 60-80 million pounds are used per year to stop pre- and post-emergent broadleaf and annual grassy weeds, and is generally applied in the spring. The herbicide is a common […]

(Beyond Pesticides, May 13, 2013) According to preliminary results of a survey by the Bee Informed Partnership, 31.1 percent of managed honey bee colonies in the U.S. were lost during the 2012/2013 winter.   Though these preliminary loss reports are similar to the past six year average of 30.5 percent, the new loss numbers represent a 42 percent increase compared to the previous winter. Survey participants indicate that they consider a loss rate of 15 percent as “acceptable,” but 70 percent of participants suffered losses greater than this. With continued winter bee losses of over 30%, and concern whether there will be enough bees to pollinate U.S. crops this year, beekeepers and environmentalists say it is imperative  that regulators act by banning the neonicotiniod pesticides that have been implicated in the global decline of honey bee populations. In addition to this national report, several state level incidents of large scale honey bee colony losses have been reported. In a recent incident in Florida, citrus groves experienced an acute foliar poisoning that resulted in severely damaged colonies. Oranges had an early bloom this year, and were still blooming near the end of April. One beekeeper’s colonies suffered immense losses due to […]

(Beyond Pesticides, May 10, 2013) The U.S. Environmental Protection Agency (EPA) published on May 8 a final rule to revise and update use patterns and data requirements for antimicrobial pesticides. Though the new rule is the first revision to EPA data requirements for antimicrobial pesticide registrations since 1984,   remaining inconsistencies among data submissions and data gaps, these new rules are a step in the right direction when it comes to regulating antimicrobial pesticides, considering the proliferation of consumer products that contain these chemicals. However, even with these new rules in place, certain antimicrobial pesticides that are already in consumer products, such as triclosan, will  still present serious hazards for  human and environmental health. More than 5,000 antimicrobial products are currently registered with EPA. Initially designed for hospitals and clinics, many antimicrobial pesticides are found in products ranging from household cleaners to mattresses and bedding, cosmetics, toys, toothpaste and even chopsticks. Antibacterial products are being marketed to the health conscious without firm evidence of real benefits and amid growing concern about unintended externalities. One prime example of this is triclosan, which is formulated into hundreds of personal care products, toys and textiles. Studies show that triclosan is an endocrine disruptor, […]

(Beyond Pesticides, April 24, 2013) Using the aquatic species Daphnia, commonly referred to as “water fleas,” scientists at North Carolina State University (NC State) determined that exposure to the pesticide pyriproxyfen impacted multiple generations, ultimately resulting in more male offspring, and causing reproductive problems in female offspring. Lead author Gerald LeBlanc, PhD, notes, “This work supports the hypothesis that exposure to some environmental chemicals during sensitive periods of development can cause significant health problems for those organisms later in life —and affect their offspring and, possibly, their offspring’s offspring.” The study, published in the journal PLoS One, provides the scientific community with new information on how organisms respond to the environmental signals resulting from pesticide exposure. Environmental cues normally determine whether the Daphina offspring will be male or female, according to the researchers. This study is part of an investigation to understand the mechanisms involved with these environmental cues. The NC State team had previously identified the hormone methyl farnesoate (Mf) as an important factor in determining the sex of the organisms at the embryotic stage. The scientists exposed Daphnia to varying levels of the pesticide pyriproxyfen, an insecticide that mimics the Mf hormone. The exposure resulted in Daphnia producing […]

(Beyond Pesticides, April 9, 2013) Last Wednesday, close to a hundred people attended a public hearing at the Riverhead campus of Suffolk County Community College, sponsored by the Department of Environmental Conservation (DEC), to comment on the draft of the Long Island Pesticide Pollution Prevention Strategy. The strategy, which was released in January, is dramatically different than a draft plan DEC had released in 2011. The draft plan had initially received praise from environmental organizations for its “zero tolerance policy”   to ensure certain chemicals did not end up in Long Island’s drinking water. However, the revamped strategy fails to offer any meaningful protective measures or strong pesticide regulations. This is concerning, given trace amounts of metalaxyl, imidacloprid and atrazine have been repeatedly detected in test wells, along with 117 other pesticides detected in Long Island drinking water. State officials argued that pesticide levels in Long Island’s drinking water are far below federal standards. However, the pesticides that have been found in the drinking water have been linked to several health and environmental problems. Because of these health and environmental risks the Citizens Campaign for the Environment, a grassroots organization working in Long Island, has called for DEC to ban […]

(Beyond Pesticides, March 1, 2013) In a literature review published in Toxicology last week, researchers found that environmental and occupational pesticide exposure was strongly associated with declines in sperm count. Researchers Sheena Martenies, BS, and Melissa Perry, ScD., MHS., determined that of the 17 studies evaluated, 15 of them reported significant associations between pesticides and semen quality. The researchers counted semen quality according to concentration of sperm over an area, their motility and ability to move, as well as their shapes. Researchers targeted studies on DDT, HCH, and abamectin, grouping pyrethroids and organophosphates by class. What they found was striking: almost all the studies reported a decrease in sperm concentration; decreased motility was also reported though less frequently; while morphological changes were not strongly associated in studies””only two indicated any changes to sperm shape. These findings build on a growing body of evidence that pesticide exposure at environmental or occupational levels diminished sperm health. In addition to the U.S. findings,  studies conducted on French, New Zealander, Indian, Tunisian, and Israeli men have all found decline in sperm count. Some studies record a drop by approximately 50% between 1940 and 1990, no small amount. These results might not be surprising as […]

(Beyond Pesticides, February 20, 2013) A new report by the United Nations Environment Programme (UNEP) and the World Health Organization (WHO) has identified endocrine disrupting chemicals as having significant health implications for the global population. According to the report, these chemicals have the capacity to interfere with tissue and organ development and function, and therefore they may alter susceptibility to different types of diseases throughout life, and represents a global threat that needs to be resolved. The report cites insufficient reporting and information on chemicals in products, materials and goods and calls for more research and collaboration. The State of the Science of Endocrine Disrupting Chemicals,   a joint study by UNEP and WHO, finds that endocrine disrupting chemicals (EDCs) are important environmental risk factors for endocrine diseases. Exposures during critical phases of development play an important role in the onset of many diseases, affecting future generations. Trends indicate an increasing burden of certain endocrine diseases across the globe, and it is clear from human studies that populations are exposed to perhaps hundreds of environmental chemicals at any one time. This UN study, which is the most comprehensive report on EDCs to date, highlights some association between exposure to EDCs […]

(Beyond Pesticides, February 13, 2013) After years of scrutiny and criticism, the U.S. Environmental Protection Agency’s (EPA) Administrator Lisa P. Jackson signed amendments strengthening existing standards for human research involving pesticides submitted by third parties for consideration in EPA decisionmaking. These amendments apply to studies involving the controlled exposure of participants to pesticides, with the hope that these “tougher” new standards will decrease the number of intentional human dosing studies conducted for pesticides. Even though EPA stated in 2001 that it will not consider or rely on human studies in its regulatory decisionmaking, subsequent industry pressure resulted in EPA invoking the Common Rule (40 CFR 26 – Protection of Human Subjects) for third-party intentional dosing studies. The agency promulgated new rules and made revisions to these rules, stemming from the lawsuit and settlement by the Natural Resources Defense Council (NRDC) et al., to broaden and refine rules relating to human research involving pesticides. In 2010, EPA published the proposed rule to amend EPA’s protocol for the testing of pesticides on humans. Now finalized, the rule strengthens EPA’s 2006 rule, Protections for Subjects in Human Research. Now prohibited is testing on nursing and pregnant women, children, as well as testing on […]

(Beyond Pesticides, February 8, 2013) A recent study conducted at the University of Granada, Spain and published in the Journal Environmental Research proposes a link between exposure to persistent organic pollutants (POPs) in food, air, and water and prevalence of type 2 diabetes in adults, regardless of age, gender, and body mass index. The paper concludes that people with higher concentrations of DDE, the break down product of DDT, are four times more likely to develop type 2 diabetes compared to other participants in the study. Increased rates of type 2 diabetes are also associated with exposure to beta-hexachlorocyclohexane, a break down product of the toxic chemical lindane, which in still allowed for use in agriculture and certain formulations of products used to treat lice and scabies. The study was carried out by analyzing the concentrations of specific POPs in adipose, or fat, tissue of 386 adults undergoing non-cancer-related surgery in Spain. According to one of the authors of the study, Juan Pedro Arrebola, “Human adipose tissue acts as an energy reservoir and has an important metabolic function. However, adipose tissue can store potentially harmful substances, such as POPs.”    The study found that as concentrations of POPs grows in […]

(Beyond Pesticides, February 1, 2013) The U.S. Environmental Protection Agency (EPA) announced its decision to go ahead with the cancellation of 12 rodenticide products which posed “unreasonable adverse effects on the environment.” The decision came after manufacturer Reckitt Benckiser’s refusal to adopt EPA safety standards for its d-CON mouse and rat control products. The action follows EPA’s Notice of Intent to Cancel (NOIC), issued in 2011, to Reckitt Benckiser and two other companies, Liphatech and Spectrum Group Division of United Industries Corporation, which voluntarily removed eight of their products from the market and were therefore not listed for cancelation by EPA. EPA requires that rodenticide products sold to individual consumers are in tamper-resistant bait stations, rather than in pellet or powder form. Additionally, EPA recognizes the risks that rodenticide products containing brodifacoum, bromadiolone, difethialone, and difenacoum pose to wildlife and will no longer allow them to be sold or distributed in the consumer market. However, use by professional applicators and in agriculture will still be permitted as long as they are in bait stations. EPA says this will reduce the amount of product in the environment, providing additional protection for wildlife from poisonings by these more toxic and persistent products. […]

(Beyond Pesticides, January 31, 2012) A new study finds that a mother’s exposure to pesticides before, during and after pregnancy may increase the risk of infant leukemia diagnosed before the age of two. Researchers in Brazil found that children are twice as likely to develop the rare cancers if their mothers were exposed three months before conception when compared to mothers who reported no exposures. A mother’s exposure at any time to the insecticide permethrin also raised the cancer risk for infants. The results support recommendations for women of reproductive age to minimize their pesticide exposure before and during pregnancy and while breastfeeding, and adds to the growing weight of evidence of the dangers of using synthetic pyrethroid pesticides. The study, entitled, “In utero pesticide exposure and leukemia in Brazilian children less than 2 years of age,” is published in Environmental Health Perspectives. Researchers asked mothers in Brazil about their pesticide exposure three months before pregnancy, while pregnant and three months after pregnancy when they were nursing. The women reported their home, work and agricultural contact with pesticides (at least once) between 1999 and 2007. Pesticide exposures from mothers of 252 children younger than two years old and diagnosed with […]

(Beyond Pesticides, January 28, 2013) Research published Thursday indicates that pesticides widely used on farms are highly toxic to frogs. Researcher Carsten Brühl, Ph.D., at the University of Koblenz-Landau in Germany called the results “alarming” with the potential for “large-scale effects” on amphibians. Two chemicals commonly used in orchards and on grains demonstrated a 100% mortality rate when researchers applied doses recommended on the label, raising serious concerns about the strength of pesticide regulations. The research builds on Brühl’s previous work on the ability of frogs to absorb pesticides through their porous skin, which is necessary for breathing underwater. More importantly, the study highlights the threats that pesticides post to biodiversity. Amphibians are considered the most threatened and rapidly declining vertebrate group, with more than a third of all amphibians listed in the International Union for Conservation of Nature and Natural Resources (IUCN) “Red List” of threatened species. The organization lists loss of habitat, climate change, and disease as the most serious threats to amphibian populations. The scientific community is increasingly recognizing the role of chemical pollutants in amphibian decline. Though sadly, regulatory agencies do not: pesticides are not even required to be tested on amphibians before the pesticide is […]

(Beyond Pesticides, January 25, 2013) The U.S. Environmental Protection Agency (EPA) has  concluded that corn rootworm is now resistant to genetically engineered corn infused with a toxin derived from Bacillus thuringiensis, or Bt, in certain parts of the Corn Belt, casting doubt on the future viability of GE corn. The conclusion of the Insect Resistance Management (IRM) Team is based on several years of data indicating that the Cry3Bb1 protein strain of Bt is ineffective at controlling corn rootworm. The press release on January 17 states: “The EPA IRM Team has concluded that corn rootworm may not be completely controlled by Cry3Bb1 in certain parts of the Corn Belt. While ”˜confirmed resistance’ as defined in registration documents has not been met, given the nature of the data, the manufacturer, Monsanto, has agreed to several actions and changes related to the registration of Cry3Bb1 products to address these matters.” Originally marketed by Monsanto in 2003, the protein Cry3Bb1 is designed to destroy the gut of the western corn rootworm. The rootworm has historically devastated corn fields, causing greatest damage in chemical-intensive agriculture during its larval stage by feeding upon the plant’s roots, inhibiting the plant’s ability to absorb moisture and nutrients […]

(Beyond Pesticides, January 23, 2013) A new federal report finds toxic contamination remains widespread in the Chesapeake Bay, with severe impacts in some places, which health and environmental advocates say lends support to their push in Maryland for legislative action on pesticides and other hazardous chemicals. In spite of some cleanup, the health of the Bay has not significantly improved. The report, “Technical Report on Toxic Contaminants in the Chesapeake Bay and its Watershed: Extent and Severity of Occurrence and Potential Biological Effects” is based on a review of integrated water-quality assessment reports from the jurisdictions in the Bay watershed (Delaware, Maryland, New York, Pennsylvania, Virginia, West Virginia, and Washington, D.C.), Federal and State reports, and articles in scientific journals. It notes that nearly three-fourths of the Bay’s tidal waters are “fully or partially impaired” by toxic chemicals, with people warned to limit fish consumption from certain areas. Contamination is severe in a handful of “hot spots” around the Bay, including Baltimore’s harbor, largely a legacy of past industrial and shipping activity. Previous reports have called on federal, state and local government to accelerate research into what threats chemical contamination may pose to the Bay, and to step up efforts […]

(Beyond Pesticides, January 22, 2013) The U.S. Environmental Protection Agency (EPA) recently faced tough questioning from the U.S. Court of Appeals for the Ninth Circuit over its decision to conditionally approve a pesticide product containing nanosilver as the active ingredient. The antimicrobial pesticide product, HeiQ AGS-20, contains microscopic particles of silver and has been applied to textiles such as clothes, blankets, and pillowcases, in an attempt to suppress odor and bacterial growth. The main argument in the Natural Resource Defense Council (NRDC) v. EPA lawsuit is that EPA was wrong  to assume that 3-year-olds would be the most vulnerable consumers. Instead, NRDC attorney Catherine Rahm of Washington argued that, “Infants are more likely than any other subgroup to chew on fabrics that could contain this pesticide.” In arguments over whether EPA lawfully granted conditional registration to HeiQ AGS-20, NRDC challenged EPA’s risk assessment for infants and children claiming the agency erred by assuming in its risk assessment that 3-year-olds would be the most vulnerable consumers. Up for debate is oral exposure to the product and whether 3-year-olds chew more aggressively than infants and produce more saliva, an important factor for extracting nanoparticles from products and becoming exposed. NRDC contends EPA’s […]

(Beyond Pesticides, January 16, 2013) Children living near chemical-intensive or conventional plantations in Costa Rica are exposed to twice as much of the insecticide chlorpyrifos compared to children living near organic plantations, a study reports. More than half the children, mostly from indigenous tribes- Ngäbe and Bribri – have a  higher daily exposures than allowed under U.S. federal standards. Chlorpyrifos is linked to neurological effects, especially in children, and is still permitted for use on crops. The study,  Indigenous children living nearby plantations with chlorpyrifos-treated bags have elevated 3,5,6-trichloro-2-pyridinol (TCPy) urinary concentrations, was lead by Berna van Wendel de Joode, PhD  (Central American Institute for Studies on Toxic Substances (IRET), Universidad Nacional, Heredia, Costa Rica). It was conducted in Costa Rica’s banana and plantain plantations in the Talamanca region, and  targeted villages situated nearby to the plantations where blue bags treated with chlorpyrifos are routinely used to protect banana and plantain crops from pests. Two villages under study are near plantations that use chlorpyrifos-treated bags, while the organic village is near several plantations  that use little or no insecticide. For 140 children, aged 6 — 9, mostly indigenous Ngäbe and Bribri, parent-interviews and urine samples were obtained. Chlorpyrifos’ environmental levels […]