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Study Finds Pesticide Use Does Not Increase Profits for Farmers

Friday, March 10th, 2017

(Beyond Pesticides, March 10, 2017) A French study published last week has found that higher pesticide use does not mean larger profits, demonstrating that farmers can reduce their usage of pesticides without worrying about their profits being affected, in most cases. Similar studies have shown that organic and conventional yields are comparable, supporting the case for farmers to transition from high pesticide use to healthier, safer, and more profitable alternatives. The study, led by Martin Lechenet, a PhD student with the French National Institute for Agricultural Research, looked at data from 946 French farms, including yields, pesticide application rates, soil characteristics, and local climate conditions. The researchers then used a model to focus on the relationship between pesticide application rates and productivity or profitability. They found that, in 77% of the farms, higher pesticide use was not linked to a higher profit. The researchers then estimated that pesticide use could be reduced by 42% without any negative effects on current profit levels in 59% of farms in their national network. According to the researchers, their results demonstrate the ability to reduce pesticide usage for most farmers in current production situations. In addition, other studies support the finding that farmers do not have […]

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Organic Agriculture Offers Clear Human Health Benefits, According to European Report

Thursday, March 9th, 2017

(Beyond Pesticides, March 9, 2017) A recent European Parliament (EP) report concludes that organic agriculture and food offer clear human health benefits over chemical-intensive agriculture. The report, Human health implications of organic food and organic agriculture, which was written by scientists from universities across Europe, used existing scientific literature to assess the human health effects from organic agricultural systems. The authors determined that organic agriculture has considerable benefits, including reduction in antibiotic resistance, lowered levels of cadmium in organic crops, and decreased dietary pesticide exposure levels. According to the EP report, “Overall, consumption of organic food substantially decreases the consumer’s dietary pesticide exposure, as well as acute and chronic risks from such exposure.” Organic farming is a systems approach that values healthy, biologically active soils to support plant life and provide critical environmental benefits, such as improved water infiltration, pest suppression, and carbon storage. It is through this preventive, systems approach that organic agriculture eliminates the necessity for pesticides, and instead relies upon soil health to prevent the problems that chemical-intensive agriculture cannot. This report adds to the growing body of evidence on impaired learning and lowered IQs in children prenatally exposed to low levels of certain pesticides, such as organophosphates. The […]

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Common Household Pesticides Again Linked to Behavioral Problems in Children

Tuesday, March 7th, 2017

(Beyond Pesticides, March 7, 2017) Another study, published by a team of French scientists in the journal Occupational and Environmental Medicine, links childhood behavioral problems to pyrethroid insecticide exposure. Synthetic pyrethroids are a class of insecticides that have increased in use over the past decade due to assumptions that they pose fewer risks to human health than older pesticide chemistries, such as organophosphates. However, this latest study is part of a growing body of research showing that pyrethroids share similar neurocognitive health concerns as these older pesticides. .   In this research, scientists investigate the interplay between pyrethroid exposure and behavioral problems through a longitudinal cohort study, which tracks levels of pyrethroid metabolites, or breakdown products, in the urine of mothers beginning between six and 19 gestational weeks and then in their children up through six years of age. Children’s behavior is measured through a screening questionnaire known as the Strengths and Difficulties Questionnaire (SDQ). SDQ measures how social a child is (altruism), whether the child has difficulty sharing problems or asking for help (internalizing disorders), as well as how defiant or disruptive a child is (externalizing disorders). The study controls for a number of confounding factors, such as weight, education, location (rural or […]

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EPA Finds Widely Used Pesticides Could Harm 97 Percent of Endangered Species

Monday, January 23rd, 2017

(Beyond Pesticides, January 23, 2017) Last week, the U.S. Environmental Protection Agency (EPA)  released its final Biological Evaluations of Three Chemicals’ Impacts on Endangered Species, which finds that chlorpyrifos and malathion likely have detrimental effect on 97 percent of all species listed and protected under the Endangered Species Act (ESA), while diazinon adversely affects 78 percent. According to EPA’s release on the subject, this is the “first-ever draft biological evaluations analyzing the nation-wide effects” of these registered chemicals on endangered species after decades of widespread use. The evaluations stem from a legal settlement with the Center for Biological Diversity (CBD) in which CBD sued EPA in April 2014 for its failure to comply with ESA, which requires the agency to carry out consultations with federal wildlife agencies while registering pesticides. According to Nathan Donley, Ph.D., a CBD senior scientist, “We’re now getting a much more complete picture of the risks that pesticides pose to wildlife at the brink of extinction, including birds, frogs, fish and plants. When it comes to pesticides, it’s always best to look before you leap, to understand the risks to people and wildlife before they’re put into use. The EPA is providing a reasonable assessment of those risks, many of which can be […]

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Neurotoxic Flea Collar Pesticide Upheld, EPA Issues Warning on Children’s Exposure

Monday, January 9th, 2017

(Beyond Pesticides, January 9, 2017) After the U.S. Environmental Protection Agency (EPA) released its recent human health risk assessment for the organophosphate insecticide (OP) tetrachlorvinphos (TCVP) on December 21, 2016, the agency announced it was allowing the continued use of the neurotoxic chemical to which children are widely exposed through pets’ flea collars and other flea treatments. According to EPA, ” TCVP is used as a direct animal treatment to livestock (i.e., cattle, horses, poultry and swine) and their premises, in kennels, outdoors as a perimeter treatment, and as a flea treatment [including flea collars] on cats and dogs.” In its announcement on January 4, 2017, EPA states, “We advise consumers to take certain precautions when handling TCVP products in residential areas. These precautions are listed on TCVP product labels, including: not allowing children to play with TCVP pet collar products, keeping TCVP spray and powder products out of reach of children, and washing hands thoroughly with soap and water after handling.” Advocates have raised concerns related to similar decisions on flea collars in the past in which EPA has issued warnings to mitigate risks, despite its inability to ensure children’s safety. Children typically come into close contact with pets and their […]

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Pesticide Exposure Alters Bacterial Diversity in the Mouth

Tuesday, December 6th, 2016

(Beyond Pesticides, December 6, 2016) A new study released by researchers at the University of Washington, Seattle finds that exposure to organophosphate insecticides is associated with changes in oral bacterial diversity, particularly for exposed farmworkers. The study provides insight into the far-reaching changes pesticide exposure can cause to the human body, which are not captured by current risk assessment models used by the U.S. Environmental Protection Agency (EPA). Although past research has investigated the impact of pesticide exposure on the gut microbiome, this is one of the first studies to look at oral bacterial diversity. For the study, scientists took oral swabs from 65 adult farmworkers and 52 non-farmworker adults in the Yakima Valley of Washington State. Swabs were taken both during the spring/summer, when exposure to pesticides is high, as well as winter, when lower exposure is expected. At the same time the swabs were taken, researchers also took blood samples of individuals in the study. Scientists focused on exposure to the organophosphate insecticide Azinphos-methyl (AZM), which at the time of the study (2005-2006) had not begun its cancellation proceedings. Results show that farmworkers have greater concentrations of AZM in their blood than non-farmworking adults in the area. It […]

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Help Protect California School Children from Pesticides in Communities Where Most U.S. Food is Grown: Send Comments by Dec. 9

Monday, December 5th, 2016

(Beyond Pesticides, December 5, 2016) People across the country can support farmworker children and rural communities by speaking up in support of better protection of California school children from pesticide exposure by December 9, 2016. Send a  short email to the California Department of Pesticide Regulation (DPR) (dpr16004@cdpr.ca.gov) to tell the Department it  must expand proposed buffers around schools to one-mile to protect school children during and after school hours, and expand the rule to cover all schools and daycare centers. Given that, according to the California Department of Food and Agriculture’s latest statistics, “Over a third of the country’s vegetables and two-thirds of the country’s fruits and nuts [and a large share of dairy and livestock] are grown in California,” everyone who eats food in the U.S. has a stake in protecting children who live in the communities where the food is grown. Food purchasing decisions have a direct impact on the people who work on farms, their children, and the communities where they live. Support the more than 75 parents, teachers and advocates for social and environmental justice who marched in Tulare County to DPR’s draft rules for pesticides use near schools last week. Led by members of […]

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EPA Revises Process, But Maintains Proposal to Stop Use of Neurotoxic Chlorpyrifos in Agriculture

Tuesday, November 15th, 2016

(Beyond Pesticides, November 15, 2016) Last week, the U.S. Environmental Protection Agency (EPA) updated its assessment of the toxic organophosphate insecticide chlorpyrifos, keeping in place a decision made last year to revoke food residue tolerances and effectively eliminate its use in agriculture. The agency indicated the change was necessary after a Scientific Advisory Panel convened by the agency suggested additional data to support its decision. This change opens up a 60-day public comment period, but EPA has said that it will make a final decision no later than March 31, 2017. “The revised analyses indicate that expected residues of chlorpyrifos on food crops exceed the safety standard under the Federal Food, Drug, and Cosmetic Act (FFDCA),” EPA noted in its announcement.  “In addition, the majority of estimated drinking water exposures from currently registered uses, including water exposures from non-food uses, continue to exceed safe levels even taking into account more refined drinking water exposures. “ To explain the decision to the public, EPA has put together a FAQ page on its website. EPA’s proposal to revoke chlorpyrifos’ food tolerances stems from a petition and lawsuit filed by the Natural Resources Defense Council and Pesticide Action Network North American nearly ten […]

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Endocrine Disruptors Cost U.S. Billions in Health Care Costs and Lost Wages

Tuesday, October 25th, 2016

(Beyond Pesticides, October 25, 2016) Last week, a study,  Exposure to endocrine-disrupting chemicals in the USA: a population-based disease burden and cost analysis,  published in The Lancet  journal, concludes  that exposure to pesticides and other chemicals found in common household items, such as toys, makeup and detergent, costs the U.S. more than $340 billion annually in  health care costs and lost wages. The chemicals in question, endocrine disruptors (EDCs), interfere with the body’s hormone system, which can lead to a variety of health problems. According to Environmental Health News, the researchers estimate the costs by looking at exposure data and then projecting 15 medical conditions that are linked to endocrine disruptors and their associated health costs and lost wages. The findings came from calculations made by the Endocrine Society, the World Health Organization, and the United Nations Environment Program. A group of flame retardant chemicals called polybrominated diphenyl ethers (PBDEs) were the worst offenders in the U.S., accounting for nearly two-thirds of estimated health problems. These chemicals were estimated to annually cause about 11 million lost IQ points and 43,000 additional cases of intellectual disability, costing around $268 billion. Pesticide exposure, the second most costly chemical group in the U.S., […]

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New Study Shows Reduction of Persistent Pollutants in Breast Milk, Though Concerns Remain

Thursday, October 20th, 2016

(Beyond Pesticides, October 20, 2016) Researchers at the University of Western Australia (UWA) and Murdoch University recently released a study whose findings show that levels of pesticides in breast milk have dropped significantly over the past forty years, though some major concerns remain. Published in the international journal Chemosphere, the research shows a 42-fold decrease in levels of pesticides detected in breast milk, and ties the reduction to government efforts to prohibit persistent organic pollutants (POPs) in Australia, which has lead to decreased exposure over time. Led by UWA’s internationally renowned human lactation researcher Emeritus Professor Peter Hartmann, Dr. Donna Geddes and Murdoch’s Associate Professor Robert Trengove, the study is a testament to the positive impact banning pesticides can have on the health of individuals, especially vulnerable populations like infants, but also shows that there is a long way to go before our bodies are void of any bioaccumulated toxic residues. Researchers often study breast milk because it can bioconcentrate, or accumulate, persistent organic pollutants (POPs). Multiple studies on breast milk have been performed throughout the years, many of them confirming the fact that common toxic chemicals, such as glyphosate and triclosan, build up in our bodies over time. Most […]

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78 Commonly Used Agricultural Pesticides Linked to Wheezing

Thursday, August 11th, 2016

(Beyond Pesticides, August 10, 2016) New research connects 78 pesticides commonly used by farmers with many adverse respiratory effects, including both allergic and non-allergic wheeze. The study, Pesticides Are Associated with Allergic and Non-Allergic Wheeze among Male Farmers, was led by NC State environmental epidemiologist, Jane Hoppin, ScD and colleagues from the National Institute of Environmental Health Sciences (NIEHS), the National Cancer Institute, Westat and the National Institute for Occupational Safety and Health (NIOSH). This is one of the most comprehensive evaluations of pesticides in relation to wheeze that has been evaluated to date, finding that several commonly used pesticides in both agriculture and residential settings can cause adverse respiratory effects. “Fifty-one of the pesticides we tested in this study had never been analyzed in terms of their effects on respiratory outcomes. And some of them, like glyphosate, 2,4-D and permethrin, aren’t just used on farms. They’re used residentially now to kill weeds or treat fleas on pets,” said Dr. Hoppin. “We believe it’s important information that will help people make decisions about pesticides.” Researchers used interview data from the 2005-2010 Agricultural Health Study (AHS) to assess the correlation between pesticide exposure and wheeze in male farmers. 22,134 farmers were […]

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Fighting Zika – Growing Concerns over Pesticide Resistance

Friday, August 5th, 2016

(Beyond Pesticides, August 5, 2016) Concerned health officials in Miami, Florida are investigating suspicions that Zika-spreading mosquitoes have become resistant to the pesticides commonly used synthetic pyrethroid insecticides used in mosquito control. As the region works to contain a Zika outbreak in northern Miami, officials are beginning to recognize that broadcast pesticide applications are not effective at controlling populations, and are looking into cases in the U.S.  and in other parts of the world of mosquitoes developing resistance to chemical controls, or whether other factors are at work. At the same, the broadcasting of the pesticides by truck and plane and the resulting exposure to people and the environment also raise serious health issues. The Aedes aegypti mosquito, which has the ability to live indoors and reproduce even in tiny pools of water, is the primary way the Zika virus is spread, although there are reports that the disease can also be transmitted through sexual contact. Zika virus has been linked to cases of microcephaly, in which babies are born with underdeveloped brains. The virus has been detected in several Latin American countries, including Brazil where the outbreak was first observed and linked to increased cases of microcephaly. However, locally […]

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Study Adds to Findings that Link Prenatal Pesticide Exposure to Lower IQs

Friday, July 29th, 2016

(Beyond Pesticides, July 29, 2016)  A study released earlier this week finds lower IQ (intelligence quotient) in children born to mothers who during their pregnancy were living in close proximity to chemical-intensive agricultural lands where organophosphate pesticides were used. This study adds to the body of scientific literature that links prenatal exposure to organophosphate pesticides with lower IQ’s in children. Organophosphate pesticides, a relatively older generation of highly neurotoxic pesticides still widely used on farms in California, have been associated with a  broad range of diseases  in both children and adults.  This  latest study  supports health and environmental advocates’ call to eliminate these toxic pesticides in agriculture and move toward safer, sustainable, and organic management practices. The study, titled  Prenatal Residential Proximity to Agricultural Pesticide Use and IQ in 7-Year-Old Children, looks at 283 women and children from the agricultural Salinas Valley who are enrolled in the long-term Center for the Health of Mothers and Children in Salinas (CHAMACOS) study. Specifically, researchers looked at pregnant women living within one kilometer of agricultural fields where organophosphate pesticides were used. They found that at age 7, the children of those women had declines of approximately two IQ points and three verbal reasoning […]

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Common Pesticide Exposure Alters Behavior of Fish and Amphibians

Tuesday, July 19th, 2016

(Beyond Pesticides, July 19, 2016) Exposure to common pesticides at levels often found in the environment can have subtle but significant impacts on the behavioral health of fish, amphibians and other aquatic invertebrates. According to researchers at Northern Arizona University, who analyzed data from nearly 40 experiments to reach their conclusion, fish and amphibians swam 35% slower and were 72% less active after pesticide exposure. Chemical Class Type Example Pesticides Carbamates Insecticide Carbaryl, Aldicarb Organochlorine Insecticide DDT, Endosulfan, Chlordane Organophosphates Insecticide Diazinon, Chlorpyrifos Organotins Biocide Tributyltin Phosphonoglycines Herbicide Glyphosate, Glufosinate Pyrethroids Insecticide Permethrin, Bifenthrin, Esfenvalerate Triazines Herbicide Atrazine, Simazine The study, published in Science of the Total Environment, found that the overall effect on aquatic wildlife varied based on the chemical class the animals encountered. While pyrethroids, carbamates, and organophosphates resulted in a significant decrease in swim speed, triazines and phosphonoglycines showed no overall effect. Pyrethroids, carbamates, organophosphates, organochlorines, and organotins decreased activity, while phosphonoglycines had no overall effect, and triazines actually increased activity. “I didn’t think that we would see [an effect] across such a wide range of pesticides so consistently, but we did,” said study co-author, Catherine Propper, PhD to KNAU, “and that leads to some concerns about […]

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EPA Finds 97% of Endangered Species Threatened by Common Pesticides

Tuesday, April 12th, 2016

(Beyond Pesticides, April 12, 2016) Two commonly used pesticides are “likely to adversely affect” 97% of species listed under the Endangered Species Act (ESA), according to a first of its kind national assessment by the U.S. Environmental Protection Agency (EPA). The determination is part of a settlement reached by EPA and the Center for Biological Diversity, which requires the agency to complete a review of the impact of organophosphate pesticides chlorpyrifos, malathion, and diazinon by December 2017, and two carbamate class pesticides, methomyl and carbaryl, by the end of 2018. Under ESA Section 7, any agency action that it  authorizes, funds, or carries out must find that it  “is not likely to jeopardize the continued existence of any endangered species or threatened species or result in the destruction or adverse modification of habitat.” Under ESA, EPA is required to consult with the U.S. Fish and Wildlife Service (FWS) and National Marine Fisheries Service (NMFS) when registering a pesticide, in order to mitigate risks to endangered species. However, EPA routinely disregards this requirement, and has been sued numerous times for failing to ensure adequate protections for endangered species. Although CBD’s original lawsuit targeted potential pesticide impacts on California’s threatened red-legged frog, […]

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Chlorpyrifos Reduces Memory and Learning in Exposed Bees

Friday, March 4th, 2016

(Beyond Pesticides, March 4, 2016) Honey bees experience a learning and memory deficit after ingesting small doses of the insecticide  chlorpyrifos, potentially threatening their success and survival, according to a study in  New Zealand. Chlorpyrifos is a highly neurotoxic organophosphate pesticide used worldwide on crops to protect against insects and mites. The study,  Measurements of Chlorpyrifos Levels in Forager Bees and Comparison with Levels that Disrupt Honey Bee Odor-Mediated Learning Under Laboratory Conditions,  published in  Ecology, examines chlorpyrifos levels in  bees collected from 17 locations in Otago, New Zealand and compared doses of the pesticide that cause sub-lethal effects on learning performance under laboratory conditions with amounts of chlorpyrifos detected in bees in the field. Researchers found chlorpyrifos in 17% of the sites sampled and 12% of the colonies examined. Honey bees are found to experience harmful effects to smell memory and learning, and reduction in specificity of memory recall. Chlorpyrifos is just one of many pesticides that have frequently been detected in honey bees. According to a study conducted last year by the U.S. Geological Survey (USGS), 72% of bees tested positive for pesticide residues, raising concerns about  unintended pesticide exposures where land uses overlap or are in proximity […]

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Montreal, Canada Proposes “Complete Ban on Neonics”

Tuesday, December 15th, 2015

(Beyond Pesticides, December 15, 2015) Last week Montreal, the largest city in Canada’s Quebec province, announced plans for an all-out ban on the use of bee-toxic neonicotinoid pesticides. The new regulations represent the strongest move against this neurotoxic class of insecticides by any government entity to date. Environmental and health advocates are praising the ban as a sign that more and more localities in North America are finding these chemicals unnecessary to manage pest problems, and not worth the risk to pollinators and other wildlife. Montreal’s regulations provide for a complete ban, “without exception,” on the use of neonicotinoids outside of buildings on City land. Prior to the new rules, private citizens and businesses could obtain a temporary permit for the use of neonicotinoids in the  case  of an infestation, however, the permit will no longer be available and citizens will be encouraged to employ alternative practices or products. The ban will also apply to golf courses and properties in the City used for agricultural and horticultural purposes. “By adopting a regulation that prohibits the use of such pesticides in Montreal, our Administration places the health of its citizens, the quality of life of its neighborhoods and the preservation of […]

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Scientists Find Pesticide Exposure Decreases Lung Function in Children

Tuesday, December 8th, 2015

(Beyond Pesticides, December 8, 2015) Exposure to common agricultural pesticides in early life leads to a measurable decrease in children’s lung functioning, according to researchers from the University of California, Berkeley. Organophosphate pesticides, a relatively older generation of crop chemicals still widely used on farms in California, have been associated with a broad range of diseases in both children and adults. This latest study adds to calls from health and environmental advocates to eliminate these toxic pesticides in agriculture, and move towards safer, sustainable, and organic management practices. The higher the rate of organophosphate exposure, the smaller a child’s lung capacity would be, scientists found. The UC Berkeley study traces exposure by looking at pesticide metabolites in urine five  times over the course of childhood (6 months to 5 years). Participants were part of the Center for the Health Assessment of Mothers and Children of Salinas (CHAMACOS), a longitudinal birth cohort study investigating the effects of pesticides and other environmental chemicals on the growth, health, and development of children in California’s Salinas Valley. For every 10-fold increase in pesticide metabolites measured in a child’s urine, an average of approximately 8% air function within the lungs was lost. “Researchers have described […]

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EPA Takes Long-Awaited Action to Eliminate Neurotoxic Chlorpyrifos in Agriculture

Tuesday, November 3rd, 2015

(Beyond Pesticides, November 3, 2015) The U.S. Environmental Protection Agency (EPA) is proposing to revoke all food tolerances for the organophosphate insecticide chlorpyrifos (also known as Dursban), a neurotoxic pesticide produced by Dow AgroSciences that poses particular risks to children and farmworkers. If EPA’s rule is finalized, chlorpyrifos would be effectively eliminated from use in agriculture 15 years after consumer uses were discontinued. However, other non-food uses, including golf courses, turf, green house and mosquito control are not affected by this decision and will remain. EPA’s proposed rule came on the day of a court-ordered deadline from the U.S. Court of Appeals Judge for the Ninth Circuit, M. Margaret McKeown. In August of this year, Judge McKeown ordered EPA to respond to a petition filed by Pesticide Action Network North America and the Natural Resources Defense Council nearly nine years ago. The lawsuit called on the agency to ban all uses of the insecticide in light of scientific evidence and public comments ignored by the agency after its cumulative risk assessment for organophosphate insecticides. In 2012, EPA imposed “no-spray” buffer zones around public spaces, including recreational areas, schools, and homes to reduce bystander exposure risks. Earlier this year, the agency […]

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Another Study Confirms Eating an Organic Diet Lowers Pesticide Levels in Children

Wednesday, October 14th, 2015

(Beyond Pesticides, October 14, 2015) New research from the Center for Environmental Research and Children’s Health (CERCH) shows that children, especially those in low-income and agricultural families, who switched to an organic diet reduced their bodies’  level of pesticides. This California study is one of several that documents the benefits of eating an organic diet, especially for children who are especially vulnerable to pesticide exposures due to the developing bodies. The study, Effect of Organic Diet Intervention on Pesticide Exposures in Young Children Living in Low-Income Urban and Agricultural Communities  follows 40 children, 3-6 years old from low-income families living in urban and agricultural environments in Oakland and Salinas, California. The children alternated between a conventionally grown diet and organic, and urine samples were analyzed each day. The researchers measure 23 metabolites of several pesticides classes, including organophosphates (OP) and pyrethroid insecticides, and the herbicides 2,4-D and metolachlor. These pesticides are frequently detected (> 72%) in urine samples collected, with metabolites of 2,4-D detected 90 percent of the time, and pyrethroids 82 percent. Overall, among the most frequently detected pesticides, metabolites of OPs  decreases by nearly 50 percent when children are on an organic diet, and levels of 2,4-D falls […]

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EPA Seeks Public Opinion on Continued Use of Neurotoxic Organophosphate Pesticides

Friday, October 9th, 2015

(Beyond Pesticides, October 9, 2015) Last week, the Environmental Protection Agency (EPA) released preliminary human health and ecological risk assessments for seven organophosphate pesticides (OPs) and announced the public open comment period for those chemicals. These risk assessments come as a result of the required periodic registration review, as required by  the Federal Insecticide, Fungicides, and Rodenticide Act. In general, OPs are highly toxic and many have been voluntarily removed from the market, considerably restricted, or denied reregistration. Unfortunately, EPA continues to rely on risk mitigation for individual OPs instead of phasing them out altogether. Seven OPs ­ ­—dimethoate, dictrotophos, chloyrophos-methyl, tribufos, terbufos, profenofors, and ethoprop—are among the first wave of chemicals whose preliminary risk assessments have been completed under the registration review program. Each of these was found by EPA to inhibit the enzyme acetylcholine esterase (AchE), which ultimately leads to neurotoxic  central nervous system effects. This information is not new, however. In 2012, University College London found long-term low-level exposure to OPs produces lasting damage to neurological and cognitive functions. In 2013, at least 25 children died after eating school lunches contaminated by OPs. One OP in particular, chlorpyrifos, chlorpyrifos (Dursban), is currently under petition for the same […]

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Yale Study Links Prenatal Pesticide Exposure to Tremors in Children

Monday, October 5th, 2015

(Beyond Pesticides, October 05, 2015) According to a Yale University study, prenatal exposure to the widely used agricultural pesticide chlorpyrifos is linked to tremors — involuntary contraction or twitching of muscles — in childhood. Chlorpyrifos, a broad-spectrum chlorinated organophosphate insecticide also known as Dursban, may also affect the cardiovascular and respiratory systems and is acutely toxic to bees, birds, mammals, and aquatic life. The study, titled Prenatal exposure to the organophosphate pesticide chlorpyrifos and childhood tremor  and published in the journal Neurotoxicology, measured the presence of chlorpyrifos in umbilical cord blood samples in 263 low-income, inner-city minority children. In 2001, the U.S. Environmental Protection Agency (EPA) banned residential use of chlorpyrifos, which was prominent in urban areas at the time. However, the study participants  —263 minority mothers  and their children, all from low income  communities in New York  City— were assembled in 1997,  before the ban was imposed. In  1997, the initial measure of each  child’s prenatal exposure to CPF  was taken from umbilical cord  blood. The children were then followed until approximately 11 years of age, after which they underwent a neurophysical assessment, which included a short drawing test. Researchers found that compared to all other children, those who […]

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California to List Glyphosate (Roundup) as Cancer-Causing

Thursday, September 10th, 2015

(Beyond Pesticides, September 10, 2015) Last week, California Environmental Protection Agency’s Office of Environmental Health Hazard Assessment (OEHHA) announced that it intended to list glyphosate (Roundup) and three other chemicals as cancer-causing chemicals under California’s  Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65). Glyphosate  is a phosphanoglycine herbicide that inhibits an enzyme essential to plant growth. Under California law, Proposition 65 requires that certain substances identified by the International View postAgency for Research on Cancer (IARC) be listed as known cancer-causing chemicals. In March, a study by the IARC classified glyphosate as a Group 2A material, which means that the chemical is carcinogenic based on sufficient evidence of carcinogenicity in experimental animals. The agency considered the findings from an EPA Scientific Advisory Panel report, along with several recent studies in making its conclusion. However, industry supporters of glyphosate all over the globe are conducting their own studies to attempt to prove that it is not a carcinogen. These studies, like one by German Federal Institute for Risk Assessments (BfR), are based almost solely on industry science and classified industry reports, each of which might not consider critical variables. With more glyphosate-focused studies being released, the growing evidence […]

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