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Daily News Blog

Archive for the 'Events' Category


05
Jun

Continued Use of Glyphosate Herbicide in EU Called into Question by Renowned Toxicologist

(Beyond Pesticides, June 5, 2017) Following the recent proposed 10-year extension for the approval of glyphosate use in the European Union (EU), internationally recognized toxicologist Dr. Christopher Portier, Ph.D. has delivered a letter to the European Commission (the Commission), calling the scientific findings of these agencies into question. Dr. Portier is former associate director of the National Institute of Environmental Health Sciences (NIEHS) and director of NIEHS’ Office of Risk Assessment Research. According to the letter, both the European Food Safety Agency (EFSA) and the European Chemicals Agency (EChA) “failed to identify all statistically significant cancer findings in the chronic rodent carcinogenicity studies with glyphosate.” Previously, the Commission, which is in charge of the approval of glyphosate, was forced to issue a limited license extension for the chemical because member states could not reach a consensus. The Commission was holding out for further information on carcinogenicity, which was assessed by the ECHA, and whose report was issued in March 2017. According to ECHA’s most recent assessment, glyphosate is not carcinogenic. Dr. Portier asks that the evaluations by EFSA and EChA be “repeated for all toxicological endpoints and the data underlying these evaluations be publicly released.” Based on these failures in data analysis, […]

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02
Jun

Levels of Triclosan Spike in Children Following Hand Washing or Tooth Brushing

(Beyond Pesticides, June 2, 2017) According to a new study, levels of triclosan spike in the bodies of children after they brush their teeth or wash their hands. Triclosan, a controversial antimicrobial, is frequently added to consumer care products. Last year, the Food and Drug Administration (FDA) banned the use of triclosan in hand soaps, but it is still allowed in toothpaste and numerous plastic and textile products regulated by the U.S. Environmental Protection Agency (EPA). Many companies had previously decided, due to consumer pressure, to remove triclosan from hand soaps years ahead of the FDA decision. Researchers collected and tested the urine of 389 mothers and their children –three times during pregnancy, and then took between 1-6 samples from children between the ages of 1 and 8 years old. The researchers found triclosan in over 70% of samples taken. In the group of 8 year olds, they report that levels were 66% higher in the children that used hand soap. For those that wash their hands over five times a day, the levels increase more than four times in comparison to children who wash their hands once or less per day. For toothpaste, researchers find that children who had […]

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31
May

Neonicotinoid Seed Coatings Create Exposure Hazards for Honey Bees and Fail to Increase Yields

(Beyond Pesticides, May 31, 2017) Neonicotinoid-treated corn seeds produce lethal and sub-lethal exposure risks to honey bees and do not increase yields for farmers, according to a recent study by researchers at Purdue University. The study, published in the Journal of Applied Ecology, Planting of neonicotinoid-treated maize poses risks for honey bees and other non-target organisms over a wide area without consistent crop yield benefit, examines neonicotinoid (neonic) dust drift during corn planting in Indiana and the likelihood of honey bee exposure during foraging. The study results and subsequent analysis using public data of apiary locations indicate that over 94% of honey bee foragers in Indiana are at risk of exposure to varied levels of neonics, including lethal levels, during corn sowing. Researchers also performed a three-year field assessment of the purported benefits from neonic seed coatings for pest management, finding that there is no evidence of increased corn yields compared to sites with no neonic seed treatments. According to the lead author of the study, Christian Krupke, Ph.D., in an interview with Purdue Extension, “There was a misconception that any bees not living near corn were likely to be fine. But that’s not true, and it’s clear that these […]

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30
May

Beekeepers Continue to Experience Significant Losses as Pollinator Crisis Moves into 11th Year

(Beyond Pesticides, May 30, 2017) U.S. beekeepers lost an unsustainable 33% of their hives over the past year, according to new data from the Bee Informed Partnership. While this year’s numbers are lower than those recorded last year, which found nearly half of U.S. honey bee colonies died off, there is no cause for celebration. Declines are still well above acceptable loss rates of 15% or less, and the data indicate a continuing trend of substantial losses during the summer months. Without real changes to U.S. policy that effectively eliminate pollinator exposure to highly toxic and persistent pesticides such as neonicotinoids, there is little likelihood that these unsustainable losses will subside. Despite the overall dour projections for U.S. pollinators, Bayer, the major manufacturer of neonicotinoid pesticides implicated in pollinator declines, attempts to spin the news in its favor. Last week, the company put out a press release titled “Welcome News for Honey Bees,” and went on the praise itself for its efforts to protect pollinators. The chemical industry continues to use public relations tactics, in a similar vein to those previously employed by the tobacco industry, to downplay the nature of the crisis, spin the science, and blame everything but […]

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24
May

DuPont Worker Sues Company for Retaliation Over Pesticide Concerns

(Beyond Pesticides, May 24, 2017) A Hawai’i woman is suing her former employer, DuPont Pioneer, stating that the company retaliated against her for bringing up concerns over pesticide safety. Shanbnell Grilho, who worked for DuPont Pioneer on Oahu’s North Shore, alleges the company required her to apply hazardous herbicides without the proper training or protection, and ultimately fired her after fabricating allegations against her. This lawsuit is the latest claim against multinational pesticide companies operating in Hawai’i, which have been at the center of local and state-level disputes over their use of toxic pesticides where Hawai’i residents live, work, and play. In her complaint, Ms. Grilho indicates that she began working at DuPont Pioneer as a temporary employee, during which time she was awarded a raise and named DuPont Pioneer employee of the month. At the time she did not have to apply pesticides. However soon after her award, she was hired as a full time employee and required to work with Roundup, Liberty, and Honcho herbicides, which contain the active ingredients glyphosate, glufosinate, and glyphosate, respectively.  “DuPont Pioneer required plaintiff to apply herbicides and biocides while wearing a backpack sprayer, driving an ATV while applying herbicides with a backpack […]

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19
May

European Union Plans to Propose a 10-year Extension for the Approval of Glyphosate Use

(Beyond Pesticides, May 19, 2017) In spite of a growing body of evidence implicating glyphosate in a wide range of human illnesses and environmental impacts, the European Union (EU) plans to propose a 10-year extension for the approval of glyphosate use. Previously, the European Commission (the Commission), which is in charge of the approval, was forced to issue a limited license extension for the chemical because member states could not reach a consensus. The Commission was holding out for further information on carcinogenicity, which was assessed by the European Chemicals Agency (ECHA), and whose report was issued in March 2017. According to ECHA’s assessment, glyphosate is not carcinogenic. Glyphosate is the active ingredient in Monsanto’s Roundup brand of weed-killers, and research by the World Health Organization’s International Agency for Research on Cancer (IARC) has found that it is a probable human carcinogen. Since IARC’s findings were released, Monsanto has made several efforts to discredit the research of this well respected, international body, including attempting to influence government agencies. According to a Bloomberg BNA article, “The commission will discuss with EU member nations the prospect of a 10-year reauthorization, said Anca Paduraru, spokeswoman for the commission.” Once the Commission proposes the […]

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12
May

Exposure to Heavy Pesticide Use Can Impact Neurobehavioral Performance in Children

(Beyond Pesticides, May 12, 2017) Researchers from the University of California San Diego, School of Medicine, in collaboration with scientists from Ecuador and Minnesota, have found that exposure to heavy pesticide use during peak periods can impact neurobehavioral performance in children. The study focused on exposure to organophosphate pesticides, which have been associated with a broad range of diseases in both children and adults. The study, published in NeuroToxicology, involved 308 non-worker Ecuadorian children between the ages of 4 and 9. Neurobehavioral performance for each child was tested once between 63 and 100 days after the Mother’s Day flower harvest, which is a period of high pesticide use in Ecuador. The researchers found that children examined sooner after Mother’s Day had lower scores than children who were tested later. “Children examined sooner after the flower harvest displayed lower performance on most measures, such as attention, self-control, visuospatial processing (the ability to perceive and interact with our visual world) and sensorimotor (eye-hand coordination) compared to children examined later in a time of lower flower production and pesticide use,” said Jose R. Suarez-Lopez, MD, PhD, and lead author of the study, to ScienceBlog. Dr. Suarez-Lopez continued, “This discovery is novel because it […]

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11
May

Judge Rules that EPA Neonicotinoid Registrations Violated Endangered Species Act

(Beyond Pesticides, May 11, 2017) On Monday, a federal judge in California ruled that the U.S. Environmental Protection Agency (EPA) violated the Endangered Species Act (ESA) when it issued 59 neonicotinoid insecticide registrations between 2007 and 2012 for pesticide products containing clothianidin and thiamethoxam. The original lawsuit against EPA, Ellis v. Housenger, was filed in March 2013, by beekeeper Steve Ellis and a coalition of other beekeepers and environmental groups, including Beyond Pesticides. The 2013 lawsuit focused on the EPA’s failure to protect pollinators from dangerous pesticides and challenged EPA’s oversight of the bee-killing pesticides, clothianidin and thiamethoxam, as well as the agency’s practice of “conditional registration” and labeling deficiencies. According to George Kimbrell, Center for Food Safety’s legal director and the lead plaintiffs’ counsel, “This is a vital victory. Science shows these toxic pesticides harm bees, endangered species and the broader environment. More than fifty years ago, Rachel Carson warned us to avoid such toxic chemicals, and the court’s ruling may bring us one step closer to preventing another Silent Spring.” The judge presiding over the case rejected claims by pesticide producers and their supporters that the plaintiffs failed to establish a causal link between the pesticides and the […]

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05
May

Walmart and True Value Pledge to Phase Out Bee-Toxic Pesticide

(Beyond Pesticides, May 5, 2017) Walmart and True Value have announced that beginning on Wednesday they will be phasing out neonicotinoid (neonic) pesticides from all retail supply chains. These announcements follow numerous scientific studies that have consistently implicated neonics in the decline of honey bees and other wild pollinators. The decision stems from an ongoing consumer and environmental campaigns urging retailers to stop selling plants treated with neonics and to remove products containing them from store shelves. Neonicotinoids are systemic pesticides, or whole plant poisons, taken up by a plant’s vascular system and expressed in the pollen, nectar, and dew drops. They are also highly persistent, with research showing the potential for certain chemicals in the class, such as clothianidin, to have a half-life of up to 15 years. Studies show significant cause for concern when it comes to pollinators and exposure to these pesticides. Although little substantive action on these chemicals has been taken by the U.S. Environmental Protection Agency (EPA), the agency agreed that the pesticides do harm bees, though only in the limited situations and constrained scenarios that were actually investigated by EPA. The European Commission (EC) has proposed a complete ban of agricultural uses of the widely used […]

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04
May

Bumblebee Exposure to Neonicotinoid Pesticide Reduces Egg Development

(Beyond Pesticides, May 4, 2017) This week, a study released in the Proceedings of the Royal Society found evidence of reduced egg development and impact on feeding behavior in wild bumblebee queens after exposure to the neonicotinoid thiamethoxam. The study, led by researchers from the University of London, investigates the impact of field-relevant levels of thiamethoxam exposure on four wild species of bumblebee queens. In a BBC News article, lead author, Dr. Gemma Barron, Ph.D., stated, “We consistently found that neonicotinoid exposure, at levels mimicking exposure that queens could experience in agricultural landscapes, resulted in reduced ovary development in queens of all four species we tested. These impacts are likely to reduce the success of bumblebee queens in the spring, with knock-on effects for bee populations later in the year.” The study focuses on sublethal effects of neonicotinoids, as wild bumblebees are more likely to be exposed to low doses of these chemicals, rather than higher lethal levels. The queen bumblebees of four species were collected in the spring of 2014, with a total of 506 being used in the initial study groups. These queens were divided into three treatment groups and exposed to either a high level, low level, or no […]

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03
May

Neoniocotinoid Pesticides Impair Bees’ Ability to Fly

(Beyond Pesticides, May 3, 2017) Last week, researchers at the University of California San Diego revealed the first ever link between the use of neonicotinoid pesticides and the ability of bees to fly. Published in Scientific Reports, the study, “A common neonicotinoid pesticide, thiamethoxam, impairs honey bee flight ability,” builds on previous findings that neonicotinoid use interferes with bees’ ability to navigate, and concludes that exposure to thiamethoxam affects honey bee flight patterns as well as their physical ability to fly in ways that may be detrimental to their survival. The study is the latest in a growing body of science linking pesticide use to honey bee declines, raising concerns about overall honey bee health and longevity in the face of continued neonicotinoid use. According to the study, both acute and chronic exposure to thiamethoxam revealed significant alterations of the ability of bees to fly -affecting flight distances, duration of flights, and flight velocity. Researchers noted significant differences in bee behavior based on short versus long term exposure, which they summarized as having an “excitatory short-term effect and a depressive longer-term effect” on the bees’ ability to fly. This means that when bees were exposed to thiamethoxam for a short, […]

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28
Apr

35th National Pesticide Forum Begins Today at University of Minnesota!

(Beyond Pesticides, April 28, 2017) Beyond Pesticides’ 35th National Pesticide forum, Healthy Hives, Healthy Lives, Healthy Land: Ecological and Organic Strategies for Regeneration, begins today and continues until tomorrow night at the Humphrey School of Public Affairs in Minneapolis, MN! Walk-in registration begins this afternoon at 4:00pm, and the first session, Pesticides 101, starts at 4:30pm. Speakers during the conference range from distinguished scientists, professors, lawyers, public servants, farmers, and environmental organizers. You won’t want to miss out on this important opportunity to share in efforts to build local, state and national strategies to protect human health and the environment. Registration is $45 for the general rate and $20 for students, which includes access to all sessions as well as organic food and beverages. In addition to spending time with scientists and experts on the cutting edge of research, and the opportunity to network, we will serve light hors d’oeuvres and organic beer and wine tonight, and organic breakfast, lunch, dinner and drinks tomorrow. Again, walk-in registrations are encouraged. Tonight’s events will include two keynote sessions and a book signing. The speakers are as follows: Jim Riddle, an organic farmer, gardener, inspector, educator, policy analyst, author and avid organic eater. Jim […]

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27
Apr

Chemical Companies Knowingly Allowed Carcinogenic Contaminant in Common Pesticide

(Beyond Pesticides, April 27, 2017) Multinational chemical companies Dow Chemical Company and Shell Chemical Company knowingly sold and marketed fumigants contaminated with a cancer-causing chemical that had a strong propensity to leach into and remain in groundwater, according to a recent report from the Environmental Working Group (EWG) and a lawsuit against the companies. The contaminant of concern, 1,2,3-trichloropropene (TCP), was a manufacturing by-product found in Dow’s Telone and Shell’s D-D fumigant pesticide products with the active ingredient 1,3-Dichloropropene. The products, used to kill soil-dwelling nematodes, are toxic in their own right, but contained TCP in their formulation from the 1940s until the mid-1980s. EWG’s report details widespread contamination of drinking water in California’s agricultural regions, with detections found in 562 wells, and 94 public water systems identifying TCP above legal limits. Thirty-seven additional public water systems serving nearly 4 million U.S. residents throughout the country were also found to contain TCP. The U.S. Environmental Protection Agency has never set maximum contaminant levels for TCP in drinking water, but requires public reporting above the infinitesimally small amount of 30 parts per trillion, roughly six times higher than what the state of California requires. However, even proposed limits of 5 parts per trillion […]

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25
Apr

Study Finds Substantial Risks to Honey Bees During and After Crop Pollination

(Beyond Pesticides, April 25, 2017) Past use of agricultural pesticides puts honey bees at risk across multiple growing seasons, according to research from scientists at Cornell University in New York. According to lead author Scott McArt, PhD, “Our data suggest pesticides are migrating through space and time.” Honey bees, which over the past decade have experienced unsustainable declines over 40% each year, are at great risk from exposure to a range of pesticides, chiefly the neonicotinoid class of insecticides. This new research adds to calls from beekeepers, environmental groups, and progressive farmers to transition agriculture away from pesticide-dependent practices. Cornell researchers conducted a massive study that analyzed both the pollen source and pesticide residue found therein for 120 experimental hives placed near 30 apple orchards in New York State. The landscapes surrounding each orchard were classified based on the amount of natural area or agricultural land that was present. Scientists analyzed risk to honey bees by collecting information about pesticide use during the growing season as well as the amount of pesticide contamination in “beebread,” pollen tightly packed unto pellets by bees used as food or in the production of royal jelly. “Beekeepers are very concerned about pesticides, but there’s […]

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24
Apr

Dow Urges Trump Administration to Ignore Pesticide Impacts on Endangered Species

(Beyond Pesticides, April 24, 2017) After contributing $1 million to Donald Trump’s presidential festivities, pesticide maker Dow Chemical Co. is asking the Administration to set aside previous findings of federal scientists across multiple agencies that confirm the risks that organophosphate pesticides pose to about 1,800 critically threatened or endangered species. This comes after the Administration abandoned plans to restrict the brain-damaging pesticide chlorpyrifos, also an organophosphate pesticide created by Dow, despite mountains of evidence that show the chemical’s neurotoxic impacts on children’s brains. In letters sent to government officials, lawyers for Dow urge Administration officials and the U.S. Environmental Protection Agency (EPA) to set aside “biological evaluations” that detail how three highly toxic organophosphate insecticides –chlorpyrifos, malathion and diazinon– harm nearly all 1,800 threatened and endangered animals and plants, claiming the process to be “fundamentally flawed.” Federal agencies tasked with protecting endangered species –EPA, National Marine Fisheries Service, U.S. Fish and Wildlife Service and U.S. Department of Agriculture– have worked for years to identify the risks posed by pesticides to threatened and endangered species under to the Endangered Species Act (ESA). Under Section 7 of ESA, states that any agency action must find that it “is not likely to jeopardize […]

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21
Apr

One Week Until the 35th National Pesticide Conference: Healthy Hives, Healthy Lives, Healthy Land

(Beyond Pesticides, April 21, 2017) We are one week away from our 35th National Pesticide Forum, Healthy Hives, Healthy Lives, Healthy Land: Ecological and Organic Strategies for Regeneration! Don’t miss out on an opportunity to listen to and interact with a range of grassroots advocates, scientists, and policy makers. The 35th National Pesticide Forum, held in Minneapolis, Minnesota, at the Humphrey School of Public Affairs, runs from the afternoon of April 28 through the evening of April 29. Registration, which is $45 for the general rate, and $20 for students, includes access to all sessions as well as organic food and beverages. In addition to spending time with scientists and experts on the cutting edge of research, and the opportunity to network, we will serve light hors d’oeuvres and organic beer and wine Friday night, and organic breakfast, lunch, dinner and drinks on Saturday. Walk-in registrations will be welcome, but to ensure that we have enough food and drink, we encourage you to REGISTER TODAY! Learn from Leading Experts: The conference speakers are leading authorities in their fields, which offers participants a unique opportunity to discuss cutting-edge issues focused on protecting human health and the environment. At the Forum, you’ll have […]

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20
Apr

International Legal Opinion Details Monsanto’s Violation of Human Rights

(Beyond Pesticides, April 20, 2017) On Tuesday, the judges presiding over the International Monsanto Tribunal presented their legal opinion, delivering conclusions on the multinational corporation’s impact on issues ranging from human rights, food access, environmental health, to scientific research. In addition to Monsanto’s impact on human rights, the judges concluded that if ecocide were recognized as an international criminal law, the corporation would possibly be found guilty. According to the Organic Consumers Association’s press release, one of the organizing groups behind the creation of the Tribunal, “It is likely that the [legal] conclusions will lead to more liability cases against Monsanto and similar companies. This will shine a light on the true cost of production and will affect Monsanto (Bayer) shareholder value in the long run.” The international judges determined that, based on a legal analysis of the questions asked, Monsanto has engaged in practices that have negatively affected the right to a healthy environment, to food, and to health. In addition to these infringement of rights, Monsanto has had a negative effect on the right to freedom indispensable for scientific research with “conduct such as intimidation, discrediting independent scientific research, [and] suborning false research reports.” In the third part of its […]

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17
Apr

Canadian Food Inspection Agency Finds Residues of Glyphosate in One-Third of Food Products Tested

(Beyond Pesticides, April 17, 2017) The Canadian Food Inspection Agency (CFIA) published a report on glyphosate testing last week, finding traces of the chemical in about one-third of food products and residue levels above the acceptable limits in almost four percent of grain products. These findings come on the heels of the U.S. Department of Agriculture’s (USDA) decision to abandon plans for testing the U.S. food supply for glyphosate residues. In light of this, Beyond Pesticides is again urging USDA to test for glyphosate residues in U.S. food. According to the CFIA report: “In 2015-2016, 3188 samples of domestic and imported food products were collected and tested for glyphosate residues in three programs: Testing of 482 samples of fresh and processed fruits and vegetables as part of the National Chemical Residue Monitoring Program (NCRMP); Retail survey of 2497 samples of grains (barley, buckwheat, and quinoa), beverages, bean, pea, lentil, chickpea and soy products; A survey of over 209 retail samples of infant foods as part of the 2015-2016 Children’s Food Project.” Out of the 3,188 products tested, glyphosate residues are detected in 29.7% of samples. The highest number of samples with residues detected occur in bean, pea and lentil products, at […]

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11
Apr

Glyphosate Use Could be Linked to Pregnancy Problems

(Beyond Pesticides, April 11, 2017) New data presented last week at a children’s health conference show that glyphosate, the active ingredient in the popular Roundup weed killer, is detected in pregnant women and could lead to adverse pregnancy outcomes, including shorter gestation times and lower birth weights. The researchers here are calling for more biomonitoring of the presence of glyphosate in the public, in spite of industry and government efforts to undermine the science surrounding the human health impacts of the herbicide. Researchers tested and tracked 69 expectant mothers and found that the presence of glyphosate levels in their bodily fluids correlated with unfavorable birth outcomes. The research is still in preliminary stages and is a project of the Children’s Environmental Health Network (CEHN), which is studying the reproductive and children’s health impacts of rising herbicide use in the Midwest. The preliminary results were presented at CEHN’s conference last Thursday in Washington DC. Learn more about the project here. This is a huge issue,” said Paul Winchester, M.D., member of the research team involved with this study, medical director of the neonatal intensive care unit at the Franciscan St. Francis Health system and professor of clinical pediatrics at Riley Hospital for […]

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07
Apr

Environmental Groups Turn Back to the Courts to Ban Chlorpyrifos

(Beyond Pesticides, April 7, 2017) On Wednesday, Earthjustice, representing the Natural Resources Defense Council (NRDC) and the Pesticide Action Network North America (PANNA) turned to the courts to order the U.S. Environmental Protection Agency (EPA) to ban chlorpyrifos. Their action comes on the heels of EPA Administrator Scott Pruitt’s decision last week to reject the conclusions of EPA scientists and reverse a proposed agency decision to revoke food residue tolerances of chlorpyrifos. In the new petition, the environmental groups assert that, “Because EPA has sidestepped this Court’s orders and failed to act on the substance of the petition, PAN/NRDC respectfully ask the Court to [give] EPA 30 days to act on its findings that chlorpyrifos exposures are unsafe and to establish deadlines for the next steps in the revocation and cancellation process.” In an interview with The Intercept, Patti Goldman, managing attorney of Earthjustice’s Northwest regional office in Seattle, WA, stated that, “It’s outrageous that the new EPA administrator would reject the scientific findings of its own agency and defy the law and court orders to keep this nasty pesticide on the market.” In its most recent analysis of chlorpyrifos, EPA determined that children between one and two years of age […]

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06
Apr

Study Finds Neonicotinoids in Water Straight from the Tap

(Beyond Pesticides, April 5, 2017) A new study, Occurrence of Neonicotinoid Insecticides in Finished Drinking Water and Fate during Drinking Water Treatment, has detected neonicotinoids, a class of insecticides known for their detrimental effects on bees, in treated drinking water. This marks the first time that these insecticides have been found in water sourced straight from the tap. Federal regulators have not yet addressed safe levels of neonicotinoids in drinking water, so at this point, any detection of these chemicals is cause for concern. The study authors “report for the first time the presence of three neonicotinoids in finished drinking water and demonstrate their general persistence during conventional water treatment.” Drinking water samples “collected along the University of Iowa treatment train” over a seven week period, May through July, 2016 directly after corn and soy planting, find three neonicotinoids, clothianidin, imidacloprid, and thiamethoxam at levels ranging from 0.24 to 57.3 ng/L (nanogams per liter). The University of Iowa tap water is run through a water treatment plant that uses conventional treatment methods.  In contrast, the Iowa City water treatment methods (granular activated carbon filtration) result in substantially lower levels of the neonicotinoids. Additionally, the researchers found that extensive transformation of clothianidin […]

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04
Apr

Pyrethroid Insecticides Cause Premature Puberty in Boys

(Beyond Pesticides, April 4, 2017) Exposure to commonly used pyrethroid insecticides results in the early onset of puberty in boys, according to a study presented at the 99th meeting of the Endocrine Society in Orlando, Florida this week. Pyrethroids, which exhibit endocrine disrupting properties, have the ability to interfere with the proper regulation of the human body’s hormonal system. This research is the first to investigate not only the association between pyrethroids and accelerated puberty, but also the causal mechanisms involved in the physiological changes taking place within the human body. For the study, Jing Liu, PhD, and colleagues from Zhejuang University in China, analyzed the urine in 463 Chinese boys aged 9 to 16 for the presence of metabolites from the pyrethroid insecticide cypermethrin. Results show that a 10% increase in the metabolite 3-PBA is associated with a roughly 4% increase in luteinizing and follicle-stimulating hormones, which facilitate puberty and sperm production. The author’s note that, “Boys with increased urinary levels of 3-PBA have a significantly increased risk of earlier pubertal onset, in which the odds of being in an advanced pubertal stage are increase by 73% to 110%.” The study, acknowledging the limitation in determining causality, further investigates the […]

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31
Mar

EPA Reverses Course and Allows Continued Use of Highly Neurotoxic Pesticide, Chlorpyrifos

(Beyond Pesticides, March 31, 2017) On Wednesday, Scott Pruitt, the new head of the Environmental Protection Agency (EPA), rejected the conclusions of EPA scientists, and independent scientific literature, and reversed a tentative decision from 2015 to revoke food residue tolerances of chlorpyrifos due to the chemical’s neurotoxic impacts. This would have effectively banned chlorpyrifos from agriculture. This decision stemmed from a petition and lawsuit filed by the Natural Resources Defense Council (NRDC) and Pesticide Action Network North America (PANNA)  ten years ago, calling for EPA to revoke all chlorpyrifos tolerances and cancel all registrations. A Federal Appeals court mandated that EPA take final action by March 31, 2017. Mr. Pruitt’s decision leaves the door open for continued neurotoxic dangers for humans, especially children, who have been shown to be especially vulnerable to chlorpyrifos. Chlorpyrifos is part of the organophosphate (OPs) class of pesticides, which were used in World War II as nerve agents. As potent neurotoxicants, organophosphates are extremely harmful to the nervous system, given that they are cholinesterase inhibitors and bind irreversibly to the active site of an enzyme essential for normal nerve impulse transmission. The scientific evidence of neurotoxic dangers associated with chlorpyrifos exposure is extensive and consistent. Epidemiological data also […]

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