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Daily News Blog

Archive for the 'Chlorpyrifos' Category


06
Aug

California Fines Six Firms for Repeated Pesticide-Tainted Crop Violations

(Beyond Pesticides, August 6, 2015) On July 28, the California Department of Pesticide (DPR) released a statement announcing recent sanctions for six California import firms who repeatedly violated pesticide regulations. Since December of last year, these six firms have been selling imported products that have been tainted with pesticides not approved for production or sale in the United States, including DDE, imidacloprid, chlorpyrifos, and the long-banned endosulfan. The fines range from $10,000 to $21,000. The six firms responsible for selling fruits and vegetables containing illegal pesticide residues are: Top Quality Produce, Inc. 623 Vineland Avenue, La Puente, CA 91746 will pay $10,000. On 5 separate occasions, the company sold produce such as Longan imported from Thailand, Burdock Root imported from Taiwan and Lychees imported from China with illegal pesticide residues. The produce was sold between November 2013 and July 2014. Yi Bao Produce Group, 3015 Leonis Blvd, Vernon CA 90058, will pay $15,000. On 7 separate occasions, the company sold produce imported from China such as Ginger, Taro Root, Longan and Fragrant Pear with illegal pesticide residues. The produce was sold between March 2013 and September 2014. Primary Export International Inc. 143 Mitchell Ave., South San Francisco, CA 94080, will […]

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07
Jul

EPA Falters Again in Banning Remaining Uses of a Highly Toxic and Unnecessary Insecticide

(Beyond Pesticides, July 7, 2015) In a sleight of hand,  the U.S. Environmental Protection Agency (EPA) announced plans last week to cancel all remaining agricultural uses of the hazardous insecticide chlorpyrifos by April 2016, and then left the door open for negotiations with the chemical’s manufacturer, Dow AgroSciences, to adopt  risk mitigation measures that would avoid a ban. Environmental groups are reacting to EPA’s announcement with guarded optimism, encouraging the agency to move forward with its planned cancellation of a highly toxic chemical that has remained on the market for far long. In June 2000, EPA announced a negotiated voluntary cancellation  with Dow that removed residential uses of chlorpyrifos (Dursban) from the market because of the neurotoxic effects to children, but allowed most agricultural uses to continue. As early as January of this year, EPA released a revised human health risk assessment for chlorpyrifos, finding that the chemical poses risk to farmworkers, and the drinking water of small watersheds. The assessment was, in part, in response to a petition submitted by Natural Resources Defense Council (NRDC) and Pesticide Action Network (PAN) in 2007, which called on the agency to ban all uses of the insecticide. Since the the 2000 cancellation, […]

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25
Jun

Atrazine and Glyphosate To Be Analyzed by EPA for Impacts on 1,500 Endangered Species

(Beyond Pesticides, June 25, 2015) The U.S Environmental Protection Agency (EPA) announced Tuesday that it will analyze the effects of two of the most commonly used pesticides in the United States, glyphosate and atrazine, along with atrazine chemical-cousins propazine and simazine, for their impacts on 1,500 endangered plants and animals. The announcement marks an agreement between EPA and Center for Biological Diversity (CBD) on a proposed settlement amending a 2010 court order that  established a schedule to complete effects determinations for 75 chemicals on 11 species in the San Francisco (SF) Bay Area. According to EPA, 59 of the 75 pesticides have been evaluated and subject to  effects determinations, however for the remaining 16 pesticides, EPA and CBD agreed that it would be more efficient and environmentally significant to complete nationwide effects determinations, rather than limit their focus to the SF bay area listed species. The agency has committed to completing the assessments by June 2020. The initial lawsuit was filed by CBD in May 2007 against EPA for violating the Endangered Species Act by registering and allowing the use of scores of toxic pesticides in habitats for 11 San Francisco Bay Area endangered species without determining whether the chemicals […]

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04
Jun

Pyrethroid Pesticide Use Increases Rates of ADHD in Adolescent Boys in New Study

(Beyond Pesticides June 4, 2015) Another study has found links between a commonly used household pesticide and attention deficit hyperactivity disorder (ADHD) in children and young teens. Researchers at Cincinnati Children’s Hospital Medical Center found an association between pyrethroid pesticide exposure and ADHD, particularly in terms of hyperactivity and impulsivity. These results reinforce the findings of a study led by a research team at Rutgers University earlier this year that found links between the pesticide deltamethrin and ADHD. In 2001, over concerns about adverse health consequences, the U.S.  Environmental Protection Agency banned several commonly used organophosphate (organic compounds containing phosphorus) pesticides from residential use due to the chemicals neurotoxic properties. The ban led to the increased use of pyrethroid pesticides, which are now the most commonly used pesticides for residential pest control and public health purposes. Pyrethroids, like deltamethrin, are commonly used in the home,  office buildings,  and on vegetable crops, gardens, lawns and golf courses. This shift to predominantly using pyrethroids is troubling, as they have oft been promoted as a safer choice than banned organophosphates, despite the fact that they pose many real threats to human health. Many recent studies show significant concern with this class of chemicals, […]

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03
Jun

California Regulators to Strengthen Pesticide Restrictions Near Schools

(Beyond Pesticides, June 3, 2015) After years of campaigning by local activists and a lawsuit filed by parents citing discriminatory practices from policies that led to disproportionate exposure of Latino children to pesticides, the California Department of Pesticide Regulation (CDPR) will now seek to gather input from stakeholders to determine what measures are appropriate to enhance protection of California’s schoolchildren. Given that Latino children are more likely to attend schools near areas with the highest use of pesticides of concern, and California’s pesticide use has actually increased over recent years, the state will need strong restrictive policies to provide any meaningful protections for school children. According to CDPR, the agency will hold five  workshops from May 28 – June 9 2015 to gather input that will later help craft a statewide regulation on  pesticide use near schools, with a focus  on improving school pesticide notification procedures and reducing the risk of exposure. In California, many schools have been built on prime agricultural land next to farm operations. While there are currently state regulations on the use of individual pesticides, CDPR’s regulatory framework for restricted pesticides also allows for the establishment of additional rules to address local conditions. However, existing rules […]

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21
May

California Department of Pesticide Regulation Report Raises Concerns Over Increased Pesticide Use

(Beyond Pesticides, May 21, 2015) The California Department of Pesticide Regulation (CDPR) published its Annual Pesticide Use Report last week, which finds that overall pesticide use for agricultural purposes has increased by 3.7 percent between 2012 and 2013. Pesticide use increased by 6.4 million pounds in 2013, the most recent data available, making for a grand total of 178 million pounds of pesticides used annually in California’s agricultural industry. The study also revealed several insights on trends in pesticide use, the most troubling of which is the increased use of organophosphates, and more specifically, the insecticide chlorpyrifos. This raises concerns that, absent aggressive efforts by CDPR to ban chlorpyrifos’ use in food production, industry reliance on the pesticide may continue to  increase. Chlorpyrifos was banned by the Environmental Protection Agency (EPA) for nearly all residential uses in 2000, but since then has remained widely available for agricultural use. Efforts to limit the agricultural use of chlorpyrifos in the state of California have been in the works since the fall of 2014, and a regulation Designating Chlorpyrifos as a Restricted Material was recently adopted by California’s DPR.  The new regulation classifies as  ”˜restrictive use’  all pesticide products containing the organophosphate  insecticide […]

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20
Apr

Canada Fights Toxic Mosquito Spraying Near Homes and Parks

(Beyond Pesticides, April 20, 2015) New details emerged last week after a Canadian volunteer group, Pesticide Free Alberta (PFA), received records from the City of Edmonton regarding ground and aerial application of Dursban 2.5, a restricted insecticide (in both Canada and the US), in close proximity to residential areas to kill off mosquito larvae. The coordinator of PFA, Sheryl McCumsey, fought for months for the data to be released. Health Canada does not recommend using Dursban in areas where children will be exposed, such as homes, parks, school grounds or playing fields, but the City of Edmonton justifies the use of the product by its label language, citing that it can be used in industrial areas. These areas often end up bordering residential neighborhoods and natural lands, such as parks. The active ingredient in Dursban is chlorpyrifos, a neurotoxic insecticide that has been linked to many detrimental health and environmental effects, such as endocrine disruption, reproductive and birth effects, toxicity to birds, bees and aquatic wildlife.In the US, the Environmental Protection Agency (EPA) and Dow AgroSciences restricted the sale and use of most home, lawn and garden product due to its health risks for children. However, it is still used […]

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13
Mar

Exposure to Hormone Disrupting Chemicals Costs Billions in Lost Brain Power

(Beyond Pesticides, March 13, 2015) Exposure to endocrine (hormone) disrupting chemicals (EDC) results in approximately € 150 billion ($162 billion) in health care costs in the European Union each year, according to panels of scientists tasked by the EU Commission to study their impact. “The shocking thing is that the major component of that cost is related to the loss of brain function in the next generation,” Philippe Grandjean, M.D. of Harvard University, one of the report’s authors, told the Guardian. EDCs, contained in common household products such as detergents, disinfectants, furniture, plastics, and pesticides, interfere with the body’s hormone system either by mimicking naturally produced hormones, blocking hormone receptors in cells, or effecting the transport, synthesis, metabolism or excretion of hormones. These impacts can result in devastating effects on one’s health, including behavioral and learning disorders, such as Attention Deficit Hyperactivity Disorder (ADHD), birth defects, obesity, early puberty, infertility, cardiovascular disease, and childhood and adult cancers. Nearly 100 percent of people have detectable amounts of EDCs in their bodies, according to the introductory guide to EDCs published by the Endocrine Society and IPEN. “Our brains need particular hormones to develop normally —the thyroid hormone and sex hormones like testosterone […]

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23
Jan

California Plan Violates Protections from Pesticide Spraying, According to Lawsuit

(Beyond Pesticides, January 23, 2015) Pesticide-centered Program Approved Despite 30,000 Opposition Letters. Eleven groups, including Beyond Pesticides and the City of Berkeley, sued the California Department of Food and Agriculture yesterday over the agency’s approval of a statewide “pest management” plan that allows pesticide spraying on schools, organic farms and residential yards, including aerial spraying over homes in rural areas. California regulators approved the program despite tens of thousands of public comment letters calling for a less toxic approach that would protect the vitality and resilience of the state’s food system and the economic interests of organic farmers. “Environmental review laws are there to prevent abuses,” says Jay Feldman, Executive Director of Beyond Pesticides, “Agencies cannot make unilateral decisions to ignore mandatory health and environmental safety standards.” “The state offers no evidence to support its conclusion that this pesticide-centered program will have no effect on our health,” said Debbie Friedman, cofounder of MOMS Advocating Sustainability. “As a parent, I am particularly disturbed that health risks of pesticide residues for children aged two and under are dismissed based on the absurd reasoning that infants spend most of their time indoors.” The approved program allows the state to use, without any additional […]

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12
Jan

California Schools Implement Stronger Pesticide Requirements with Start of New Year

(Beyond Pesticides, January 12, 2015) California schools have started implementing new pesticide reporting and use requirements with the start of 2015. All schools and child day care centers statewide are now required to report their annual use of pesticides to the California Department of Pesticide Regulation (CDPR). The requirement comes via amendments made to the state Healthy Schools Act, which requires schools and day care centers to: Develop an Integrated Pest Management (IPM) plan and make it available to the public. Report pesticide use at minimum once a year for pesticides that are not exempt. The first reports will be due January 30, 2016, and will include use from January 1 to Dec. 31, 2015. After July 1, 2016, school staff involved in application of pesticides will be required to complete school-related IPM training annually. Professional applicators will be required to receive this training before application at a school site. In the past, pesticide use on school property was reported to the state by the applicator, which was usually a company contracted by the school district. Now the district must report all use of these chemicals by its own staff. “The real effect in January. . .means that school districts […]

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07
Jan

EPA Responds to Call for Chlorpyrifos Ban with New Risk Calculations and Continued Use

(Beyond Pesticides, January 7, 2015) On Monday, the U.S. Environmental Protection Agency (EPA) released a revised human health assessment for the insecticide, chlorpyrifos, which finds risks to workers who mix, load and apply chlorpyrifos, and that the chemical has the potential to pose risks to drinking water in small watersheds. The assessment also notes that EPA will retain the 10X (10-fold) safety factor to protect children from all routes of exposures. EPA’s latest finding confirms long-standing scientific data that  has documented chlorpyrifos’ toxicity to humans and environmental contamination. However, despite these findings, EPA proposes to place additional restrictions on chlorpyrifos’ use, instead of a widespread ban. This latest assessment updates the June 2011 preliminary human health risk assessment, which was widely criticized by environmental and farmworker groups. EPA is releasing this assessment based on new information received since 2011, including public comments. The assessment is, in part, in response to a petition submitted by Natural Resources Defense Council (NRDC) and Pesticide Action Network (PAN) in 2007, which called on the agency to ban all uses of the insecticide. In 2000, EPA orchestrated a voluntary cancellation with the manufacturer Dow AgroSciences of  most residential uses of chlorpyrifos to limit children’s exposure, […]

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02
Oct

California To Limit Chlorpyrifos’ Food Production Use, Environmentalists Sue EPA

(Beyond Pesticides, October 2, 2014) California state pesticide regulators are looking to curtail the use of chlorpyrifos, one of the most widely used insecticides on the market, due to concerns that it poses a threat to human health and the environment. At the same time, environmental groups are suing the U.S. Environmental Protection Agency (EPA) because of the agency’s continued refusal to fully address a 2007 petition by the groups calling for a ban on the neurotoxic chemical. EPA in 2000 orchestrated a voluntary cancellation by DowAgroSciences of  most residential uses of chlorpyrifos (although uses with major exposure routes continue),  while virtually all agricultural uses remain in use, except tomatoes. The California Department of Pesticide Regulation (DPR), a branch of the California Environmental Protection Agency that regulates the sale and use of pesticides, announced last week that it is  proposing to make  ‘restrictive use’  all pesticide products containing the organophosphate  insecticide chlorpyrifos.  If the proposed regulation passes, this would mean that only trained and licensed professionals who have a permit from a local county agricultural commissioner (CAC) would be able to use these products. The CAC would also have the ability to place additional conditions on use via the permit. […]

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18
Aug

Following Lawsuit, EPA Restores Stream Buffers to Protect Salmon from Pesticides

(Beyond Pesticides, August 18, 2014) In a victory for environmental groups, conservationists, and fishing groups, the U.S. Environmental Protection Agency (EPA) finalized a settlement last Wednesday to restore no-spray buffer zones around waterways to protect imperiled salmon and steelhead from five toxic pesticides.   An initial agreement was reached in June, when it underwent public comment, and was ultimately filed August 13 without any substantive changes. The settlement follows litigation filed by Earthjustice, representing the Pacific Coast Federation of Fishermen’s Associations, the Northwest Coalition for Alternatives to Pesticides, and Defenders of Wildlife, back in 2010 that called for EPA adoption of reasonable fish protections from the insecticides. The buffers apply to salmon habitat throughout California, Oregon, and Washington to prohibit aerial spraying of broad-spectrum pesticides diazinon, chlorpyrifos, malathion, carbaryl, and methomyl within 300 feet of salmon habitat and prohibit ground-based applications within 60 feet. “Poisoning salmon rivers puts our people out of work while creating an unnecessary and expensive public health hazard,” said Glen Spain of the Pacific Coast Federation of Fishermen’s Associations, a West Coast commercial fishing industry trade association and co-plaintiff. “This agreement helps the coastal and inland communities that depend on salmon for their livelihoods and provides […]

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02
Jul

Few Doctors Educate Pregnant Women on Dangers of Environmental Toxins

(Beyond Pesticides, July 2, 2014) According to a new study, few obstetricians offer their pregnant  patients advice on how to avoid environmental toxins that might harm their babies, even though doctors recognize that exposure to chemicals like pesticides, bisphenol-A (BPA), and metals can affect  a pregnancy. The study recommends that the medical community improve medical education and training, develop recommendations for prevention and less toxic alternatives, as well as lend support to policy change. The first of its kind study of prenatal counselling, published in the journal  PLOS ONE, Counseling Patients on Preventing Prenatal Environmental Exposures – A Mixed-Methods Study of Obstetricians, found that U.S. obstetricians and gynaecologists feel they lack the medical education and training, and evidence-based guidelines and tools for communicating potential environmental risks to patients. Exposure to environmental toxins, the researchers from the University of California, San Francisco (UCSF) found, is rarely discussed with pregnant patients, even though a national survey shows that 80 percent of physicians agree they should play a part in reducing patients’ exposure to toxins. But, of the 2,500 respondents, only one in five routinely asked  their  patients about these exposures, and just one in 15 said they received training on the harmful […]

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24
Jun

Close Proximity to Pesticide-Treated Fields Increases Risk of Autism

(Beyond Pesticides, June 24, 2014) Research from the University of California, Davis CHARGE (Childhood Autism Risks from Genetics and the Environment) study finds that pregnant women who lived within a mile of agricultural fields treated with insecticides are more likely to have their child develop autism. The results of the CHARGE study, published in Environmental Health Perspectives, strengthens calls from public health and environmental groups urging regulators take a precautionary approach to agricultural chemicals and institute increased protections for those who live, work, or go to school near pesticide-treated fields. The CHARGE study looked at pregnant women’s addresses to determine their location relative to fields treated with pesticides. For women who lived less than one mile from crops sprayed with organophosphate insecticides during their pregnancy, researchers found the likelihood of their child being diagnosed with autism increased 60%. Women in the second trimester living near fields treated with chlorpyrifos, a widely used organophosphate insecticide banned for household use in 2001, are 3.3 times more likely to have their children diagnosed with autism. In response to a legal petition, the U.S. Environmental Protection Agency (EPA) in 2012 instituted risk mitigation measures for chlorpyrifos, including reduced application rates and no-spray buffer zones […]

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09
Jun

Scientist Warns of Ecological Effects Associated with Lawn Care Pesticide Runoff

(Beyond Pesticides, June 9, 2014) A recent talk given by Donald Weston, PhD, a professor emeritus in UC Berkeley’s Department of Integrative Biology, to a community group in San Jose, California warned residents about the dangers that  lawn care insecticides present to  local aquatic life. The talk focused on the problems synthetic pyrethroids and fipronil can have on Hyalella azteca and Chironomus dilutes. Increasing levels of pesticide runoff in local stream systems have not only led to decreased populations of these aquatic crustaceans, but also populations that have become resistant to pesticides. Aquatic invertebrates are extremely sensitive to pesticide runoff and different states around the country have struggled with creating pesticide regulations that foster a healthy aquatic ecosystem. A good way to reduce pesticide runoff is to transition away from toxic land care methods and adopt organic practices. Hyalella crustaceans, a tiny shrimp-like animal, are hypersensitive to pyrethroids, which are a class of insecticides used by professional lawn care companies and found in common products like Raid and mixed with fertilizer products like Scotts Turf Builder under the name SummerGuard. Chironomus dilutes, a red worm-like invertebrate, is sensitive to fipronil, which is used to kill fleas on dogs and cats […]

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06
Jun

EPA Agrees to Greater Protection of Salmon from Pesticides

(Beyond Pesticides, June 6, 2014) On June 4,  after a two year dispute between the Environmental Protection Agency (EPA) and a coalition of conservation organizations and fishing groups, an agreement  was finally reached to set reasonable no-spray buffer zones to protect salmon from five harmful insecticides: diazinon, chlorpyrifos, malathion, carbaryl, and methomyl. These buffer zones protect salmon habitat by stopping aerial spraying of pesticides within 300 feet, and ground based spraying within 60 feet of salmon supporting waters. According to the agreement, it also provides detailed notifications to state regulators, pesticide applicators, farmers and the public about the mandatory no-spray buffer zones. These stipulations will remain in place until the National Marine Fisheries Service has completed their analysis of the impacts of those five pesticides.  Then, once the analysis is completed, EPA will execute permanent protections based on their findings. EPA is required by law under the Endangered Species Act to protect what little salmon are left on the Pacific Coast. Salmon are a  critical indicator of how well we are maintaining both marine and terrestrial ecosystems, because their habitats are in streams, lakes, rivers, estuaries and the ocean. The fish  are extremely sensitive to changes in water quality, and […]

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05
Jun

EPA’s Response on Pesticide Drift and Children’s Health Challenged

(Beyond Pesticides, June 5, 2014) Environmental advocacy groups filed an Administration Objection and a court appeal last week in order to challenge the Environmental Protection Agency’s (EPA) refusal to quickly correct errors in pesticide registrations and immediately implement measures to protect children from exposure to dangerous pesticides that drift from fields during and after application. EPA’s continued refusal to protect children’s health from pesticide drift is being criticized by numerous environmental, health, and farmworker advocacy groups. The groups, which include  United Farmworkers, Pineros y Campesinos Unidos del Noroeste, Pesticide Action Network of North America, Sea Mar Community Health Centers, California Rural Legal Assistance Foundation, Physicians for Social Responsibility, and Farm Labor Organizing Committee, originally filed a petition back in 2009 titled “Pesticides in the Air””Kids at Risk: Petition to EPA to Protect Children from Pesticide Drift (2009).” The petition asked that the agency properly comply with an existing law that requires EPA to protect children’s health from exposure to pesticides that drift from fields and orchards. After a more than four-year wait and a court appeal, EPA finally provided a response last March. These groups object to EPA’s recent response to their 2009 petition on the basis of two issues, […]

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28
May

Report Finds Pesticide Residues in Hawaii’s Waterways

(Beyond Pesticides, May 28, 2014) A statewide pilot pesticide sampling project has found over 20 different types of pesticides in Hawaiian waterways, some of which are no longer registered for use in Hawaii. State officials believe the pesticides, many detected in urban areas, are from residential and golf course applications. These preliminary findings help highlight the need for local oversight of pesticide use, currently a controversial issue in the state. Conducted in partnership with the Hawaiian Department of Agriculture, the U.S. Geological Survey (USGS) and the Hawaiian Department of Health, the survey-study finds herbicides like glyphosate (Roundup) and atrazine, as well as a fungicide that is no longer registered for use in the state, contaminating the state’s waterways. The study measured pesticides in surface waters and in sediment at multiple locations in Hawaii. 25 herbicides, 11 insecticides and 6 fungicides were detected, with atrazine the most commonly found. This pilot survey responds to growing community concerns about the impacts of pesticides on local communities and ecosystems, and provides preliminary information on pesticide residues in state waterways. Recently, Kauai County passed an ordinance —Ordinance 960—  that requires public disclosure of pesticides used and the location of genetically engineered (GE) crops, as […]

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20
May

Pesticide Manufacturers Sued over Golf Course Superintendent’s Death

(Beyond Pesticides, May 20, 2014) Pittsburgh sportscaster Rich Walsh is suing multinational chemical companies after his father’s untimely death from cancer in 2009. According to a story from local Pittsburgh station WTAE, Mr. Walsh’s father, Tom Walsh, was diagnosed with acute myeloid leukemia in 2008, after a career as a golf course superintendent. “He loved golf. He loved working outside. He loved to take care of golf courses,” Rich told WTAE. Rich’s lawsuit was filed against Monsanto, Bayer CropScience, BASF, Syngenta, Dow Agroscience, Deere and Company, and John Deere Landscapes in 2010. Genetic testing from Tom’s oncologist showed chromosomal alterations as a result of years of working with pesticides, the only chemicals Mr. Walsh ever worked with. Part of the log books he kept throughout his career included the pesticides he applied, which included the insecticides Dylox and Dursban, active ingredients trichlorfon and chlorpyrifos respectively, and the fungicides Daconil and Chipco, active ingredients chlorothalonil and iprodione. All of these chemicals have been shown to be likely carcinogens, according to Beyond Pesticides’ Pesticide Gateway or Pesticide Induced Diseases Database. Chlorpyrifos, for instance, was banned for homeowner use back in  2001, but uses on agriculture and golf courses were allowed to continue […]

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07
May

Report Finds Numerous Schools Near Toxic Pesticide Fields

(Beyond Pesticides, May 7, 2014) A new report from the California Department of Public Health finds 36 percent of public schools in the state have pesticides of public health concern applied within a quarter mile of the school. Persistent and toxic pesticides like chlorpyrifos, methyl bromide, and malathion are among the pesticides found to be applied near schools. The report also finds that Latino children are also more likely to attend schools near areas with the highest use of pesticides of concern. The report, “Agricultural Pesticide Use near Public Schools In California,” released this month, looked at 2,511 schools in the 15 California counties with the highest overall use of farm pesticides in California for 2010, and finds that counties in the southern part of the Central Valley had the most schools near farms where pesticides were applied. Fresno County had the highest number of schools —131 — with pesticides applied nearby. Five percent of schools are within a quarter mile of where the highest volumes of pesticides are used: 2,635—28,979 pounds of active ingredient. Latino children are 46 percent more likely than white children to attend schools where pesticides of concern were applied nearby. The report’s findings are being […]

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10
Feb

Children Exposed to Increasing Concentrations of Pyrethroid Insecticides

(Beyond Pesticides, February 10, 2014)    A recent study has found that exposure to pyrethroids is increasing among children and adults. The study also finds that children are still widely exposure to chlorpyrifos, an organophosphate chemical that has been banned for household use for over 12 years. This is not the first study to find high concentrations of pyrethroids in residential, but it may be the first to evaluate correlations between pesticide dust concentration and concentration of pesticides in children’s urine. The study, Urinary Pyrethroid and Chlorpyrifos Metabolite Concentrations in Northern California Families and Their Relationship to Indoor Residential Insecticide Levels,  conducted by researchers at the University of California, Davis, analyzed urine samples from 90 adults, 83 children, and 88 floor wipe samples from participants’ kitchen floors. The participants were 90 northern Californian families who had children born between 2000 and 2005, with the samples collected from 2007-2009.   These samples were analyzed for concentrations of pyrethroids, pyrethroid metabolites, chlorpyrifos, and chlorpyrifos metabolites.  The study found pyrethroid metabolites in 63 percent of all urine samples with concentrations twice as high as levels reported in a national 2001-2002 study. In children, higher concentrations of pyrethroids found in floor wipes were associated […]

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06
Feb

Bee Larvae Adversely Affected by Mix of Pesticides and Inert Ingredients

(Beyond Pesticides, February 6, 2014) We know that pesticides and bees don’t mix and that particular pesticides, such as neonictinoids, pose significant threats to bee populations worldwide, but a recent study conducted by researchers at Pennsylvania State University have identified that it is “the mix” of the many chemicals in the environment that pose a significant threat to honey bee survival. Looking at the four most common pesticides detected in pollen and wax –fluvalinate, coumaphos, chlorothalonil, and chloropyrifos, Wanyi Zhu and other researchers have assessed the toxic impacts of these pesticides on honey bee larvae at real world exposure levels; that is, levels that are found in existing hives outside of a laboratory. But these researchers go beyond the usual one-chemical analysis in their study,  Four Common Pesticides, Their Mixtures and a Formulation Solvent in the Hive Environment Have High Oral Toxicity to Honey Bee Larvae. Rather than just looking at the pesticides in their individual, out-of-the-bottle form, they also mixed them up and broke them apart. Why did they take this mixed-up approach? “Recently, one hundred and twenty-one different pesticides and metabolites were identified in the hive with an average of seven pesticides per pollen sample, including miticides, insecticides, […]

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