(Beyond Pesticides, November 2, 2011) On Monday, a federal judge rejected a lawsuit brought by Dow AgroSciences challenging pesticide application restrictions to protect salmon and upheld the measures recommended by the National Marine Fisheries Service (NMFS) to protect endangered salmon and steelhead from three highly toxic pesticides: chlorpyrifos, diazinon, and malathion. The restrictions, recommended by NMFS’s Biological Opinion in 2008, ban the ground spraying of the three commonly used organophosphate agricultural insecticides within 500 feet of any salmon-bearing waterway, and aerial spraying within 1,000 feet. NMFS has issued four Biological Opinions, the latest on June 2011, which call for several limitations on aerial spraying and ground application of the pesticides near salmon waters, as well as buffer zones around salmon waters and ditches that drain to salmon habitat, among others. EPA was court ordered to consult with NMFS to identify measures needed to protect salmon and steelhead from the pesticides as a result of a 2002 and 2007 lawsuit. Pesticide manufacturers have been willfully ignoring and challenging NMFS’s findings. Dow AgroSciences alleged that NMFS used bad data and modeling and that the proposed buffers are far too large. Earthjustice, representing Northwest Center for Alternatives to Pesticides (NCAP), Pacific Coast Federation […]

(Beyond Pesticides, October 20, 2011) The Center for Biological Diversity filed a lawsuit yesterday against the Environmental Protection Agency (EPA) and U.S. Fish and Wildlife Service (FWS) for failing to evaluate and act on threats to the threatened California red-legged frog posed by more than 60 toxic pesticides used in and near its habitats. The Center had announced its intent to sue the two agencies back in December 2010. A 2006 legal settlement secured by the Center requires EPA to assess the impacts of harmful pesticides on red-legged frogs and formally consult with the Fish and Wildlife Service to address those impacts. EPA determined that widespread use of more than 60 pesticides is likely harming red-legged frogs, but since the agency and the Fish and Wildlife Service have failed to complete the required evaluations, no permanent protections for frogs have been put in place. “Federal agencies acknowledge that scores of pesticides may harm California’s rare red-legged frogs, but for years now they’ve neglected to complete biological evaluations of the effects of these chemicals,” said Jeff Miller, a conservation advocate with the Center. “California’s imperiled frogs are suffering as a result.” “Biological opinions,” the evaluations required by the Endangered Species Act, […]

(Beyond Pesticides, October 6, 2011) Representatives of the International Federation of Organic Agriculture Movements (IFOAM) presented a special declaration October 1, 2011 to the United Nations (UN), requesting that the international organization commit all of its member nations to a world without genetically modified (GMO) foods and to identify existing GMO foods on product labels. The UN declaration was written in anticipation of the GMO Right2Know March which kicked off at the UN headquarters in New York on October 1 and will end at the White House on October 16. The UN delegation included IFOAM representatives, Joseph Wilhelm, founder of Rapunzel organic products and the force behind “Gene-Free America;” and his employees.” Maria-Luisa Chavez welcomed the delegation and accepted the declaration on behalf of the UN. She will pass it on to the president of the General Assembly, the main deliberative, policymaking and representative organ of the United Nations. Mr. Wilhelm believes that consumers have the right to know whether the food they buy is genetically altered. “Twenty percent of all manufactured foods in the U.S. contains genetically modified ingredients (GMO),” he said. “We hope the Right2Know march will raise consumer awareness and influence U.S. legislators to require that labels […]

(Beyond Pesticides, August 18, 2011) A new report by the Australian government finds that agricultural pesticides are severely damaging the Great Barrier Reef; despite this fact, sugarcane growers have been allowed a six week extension to continue to use the weed killer diuron, which was intially set to be suspended for use on August 13. The Reef Water Quality Protection Plan First Report Card estimates that 28,000 kilograms (or approximately 61,730 pounds) of pesticides enter the reef, which is the world’s largest structure made up of living organisms and a World Heritage natural wonder. The findings in the report corroborate previous research on the health of the Great Barrier Reef. The sugarcane industry claims that the research is based on old data and that there have been significant changes in practices, including cutting back on the use of pesticides. Though the Australian government acknowledges these changes, those improvements have been undermined by Cyclone Yasi. The heavy flooding from Yasi, which ripped through the region earlier this year, likely flushed pollutants out into the reef. According to the industry, the suspension of the use of diuron would drive up the costs for sugarcane growers because there is no viable alternative to […]

(Beyond Pesticides, August 17, 2011) Representatives Edward J. Markey (D-Mass.), top Democrat on the House Natural Resources Committee, and Grace Napolitano (D-Calif.), the Ranking Democrat on the Natural Resources Committee’s Subcommittee on Water and Power, sent a letter to the Environmental Protection Agency (EPA) and the U.S. Fish and Wildlife Service (FWS) urging adoption of new measures to help protect endangered species as the federal government develops rules governing the spraying of pesticides directly into U.S. waters. These new rules would apply to issuance of a Pesticide General Permit (PGP), which would be the first of its kind in the history of the Clean Water Act and would impose limits on the amount of pesticides that enter our streams, rivers, and lakes. The letters were forwarded to EPA and FWS at a time when Congress is doing all it can to strip the Clean Water Act of its power to protect U.S. waterways. The Reducing Regulatory Burdens Act of 2011 or H.R. 872, already passed by the House earlier this year and recently voted out of the Senate Committee on Agriculture, Nutrition, and Forestry, would revoke EPA’s authority to require permits for pesticide discharges into waterways. Click here to send […]

(Beyond Pesticides, August 16, 2011) A lawsuit filed in federal court against the U.S. Fish and Wildlife Service (FWS) seeks to end cultivation of genetically engineered (GE) crops on twenty-five national wildlife refuges across the U.S. Southeast. The suit is the latest step in a campaign to banish GE crops from all refuges. Filed in the U.S. District Court for the District of Columbia on August 12, 2011 by Public Employees for Environmental Responsibility (PEER), the Center for Food Safety (CFS), and Beyond Pesticides, the federal suit charges that FWS unlawfully entered into cooperative farming agreements and approved planting of GE crops in eight states without the environmental review required by the National Environmental Policy Act (NEPA) and in violation of FWS policy. This is the third in a series of lawsuits filed by CFS and PEER challenging FWS’s practice of permitting GE crops on wildlife refuges. In 2009 and 2010, the groups successfully challenged approval of GE plantings on two wildlife refuges in Delaware — Prime Hook National Wildlife Refuge and Bombay Hook National Wildlife Refuge — which forced FWS to end GE planting in the entire 12-state Northeastern region. National wildlife refuges have allowed farming for decades despite […]

(Beyond Pesticides, July 21, 2011) For the first time, a federal agency has officially recognized that the loss of a species is related to climate change; the species at risk, the whitebark pine, faces a barrage of threats, including invasive diseases and insects which have not previously been able to thrive in the tree’s cold territory. In addition to other man-made causes for climate change, pesticides play a significant role through heavy use of fossil fuels in the manufacturing process and emissions. Conventional agricultural practices further contribute to climate change through the heavy reliance on pesticides and fertilizers, and through degradation of the soil, which releases carbon. As temperatures have warmed, the amount and variety of pests in regions that do not traditionally have problems are increasing. Researchers at the University of Washington have found that insect species that adapt to warmer climates also will increase their maximum rates of population growth, meaning that global warming will likely lead to increased insect populations. In New England, entomologists have noted an increase in the number of insects, including ticks carrying lyme disease and mosquitos with West Nile Virus and encephalitis. Scientists believe that climate change will increase disease transmission by shifting […]

(Beyond Pesticides, July 14, 2011) In its draft Biological Opinion, the National Marine Fisheries Service (NMFS) finds that the issuance of the proposed Pesticides General Permit by the U.S. Environmental Protection Agency (EPA) is likely to jeopardize the continued existence of endangered and threatened species and cause the destruction or modification of critical habitat of the species without the implementation of a reasonable and prudent alternative (RPA). The agency is seeking public comment on the implementation of the proposed RPA and possible alternatives that would avoid the likelihood of jeopardizing the threatened or endangered species. Comments will be accepted until July 25, 2011. Essentially, the proposed Pesticides General Permit grants blanket approval to all pesticide applicators operating near waterways by issuing a single permit which would apply to all such potential applications, and largely removes the opportunity for environmental oversight of specific applications. The findings in this Biological Opinion are particularly relevant in light of current efforts by Congress to strip protections from the Clean Water Act (CWA) by prohibiting discharge permits for pesticides in waterways. Under section 7 of the Endangered Species Act (ESA), federal agencies have an obligation to insure, in consultation with NMFS and the U.S. Fish […]

(Beyond Pesticides, June 21, 2011) More than 130 groups in 35 states, representing public health, food-security, sustainable-farming, farmworker and conservation interests called on the Environmental Protection Agency (EPA) to use all the tools at its disposal to protect public health and imperiled wildlife from toxic pesticides. The June 16th letter to EPA, which was signed by Beyond Pesticides, cites significant flaws in the pesticide registration process. To see which conventional crops may be grown with pesticides linked to impacts on wildlife and human health, see Beyond Pesticides’ Eating with a Conscience food guide. “Pesticides pose a clear and preventable danger to our health and the environment. It’s time for EPA to ensure pesticides no longer jeopardize human health, wildlife, the water we drink or the air we breathe,” said Jeff Miller, a conservation advocate with the Center for Biological Diversity. “Congress must do its part by stopping legislation sponsored by chemical corporations and their allies to strip important laws that safeguard future generations, farmworkers and wildlife from pesticide harms.” The groups cite undue pesticide industry influence over EPA’s pesticide decisions under the Federal Insecticide Fungicide Rodenticide Act (FIFRA)””as well as documented pesticide impacts such as endocrine disruption, cancers and reproductive […]

(Beyond Pesticides, June 6, 2011) A broad coalition of conservation, organic-agriculture, anti-pesticide and food-safety groups, including Beyond Pesticides, are calling on Congress to stop the spread of the bat-killing disease which has wiped out more than one million bats, threatening six different species. The letter, sent June 1, 2011, urges Congress to appropriate funds for research and management of white-nose syndrome. Groups are also asking Senators to support the Wildlife Disease Emergency Act, a bill introduced this session by Sen. Frank Lautenberg (D-N.J.), to provide a framework and funding mechanism for effectively addressing wildlife disease crises like white-nose syndrome. Insect-eating bats play an important economic role in agriculture and timber production. A study published earlier this year in the journal Science found that the value of bats’ pest-control services to agricultural operations in the United States ranges from $3.7 billion to $53 billion per year. “White-nose syndrome is a wildlife crisis of unprecedented proportions,” said Mollie Matteson, a conservation advocate with the Center for Biological Diversity, which spearheaded the letter. “Left unchecked, the loss of bats is likely to have cascading effects on both the human and natural worlds for generations to come.” Since 2006, the newly emergent white-nose syndrome […]

(Beyond Pesticides, May 3, 2011) Beyond Pesticides is pleased to announce the launch of its YouTube Channel. Officially launched this week, the channel features keynote presentations and panel sessions from Beyond Pesticides’ 29th National Pesticide Forum held April 2011 at the Colorado School of Public Health in Aurora, CO. The videos serve as an educational resource for those working to change pesticide policies in their communities, schools, institutions, state and nationwide. Individuals and organizations are invited to submit their own videos to be included on the Beyond Pesticides’ channel. Featured videos included with the initial launch include: — Pesticides 101: An introduction to pesticide issues (Caroline Cox, Center for Environmental Health) — Protecting Pollinators from Pesticides: Stopping the demise of honeybees (Tom Theobald, Niwot Honey Farm; James Frazier, PhD, Penn State University; Marygael Meister, Denver Beekeepers Association) — Genetically Engineered Food: Failed promises and hazardous outcomes (George Kimbrell, Center for Food Safety) — Health and Science Panel (John Adgate, PhD, Colorado School of Public Health; Dana Boyd Barr, PhD, Emory University; Christine Parks, PhD, National Institute for Environmental Health Sciences (NIEHS); Changlu Wang, PhD; Rutgers University) — Beyond Lists: Where did all those pesticides come from? (Theo Colborn, PhD, The […]

(Beyond Pesticides, April 28, 2011) In recognition of the 3rd annual Save the Frogs Day, a “Save the Frogs/Ban Atrazine Rally” will be held tomorrow, Friday, April 29th in Washington, DC. The rally will take place at the steps of the U.S. Environmental Protection Agency (1200 Pennsylvania Ave, NW), and is intended to raise awareness of the rapid disappearance of frog species worldwide, and bring attention to the harmful effects of the endocrine disrupting herbicide atrazine. Amphibian populations worldwide have been declining at unprecedented rates, and nearly one-third of the world’s amphibian species are threatened with extinction. Up to 200 species have completely disappeared in recent years. Amphibians are faced with an onslaught of environmental problems, including climate change, infectious diseases, habitat loss, invasive species, and over-harvesting for the pet and food trades. Numerous studies have definitively linked pesticide use with significant effects on amphibians. Pesticides can cause abnormalities, diseases, injury and death in these frogs and other amphibians. Because amphibians breathe through their permeable skin, they are especially vulnerable to chemical contamination. Frog eggs float exposed on the water surface, where pesticides tend to concentrate, and hatched larvae live solely in aquatic environments for five to seven months before […]

(Beyond Pesticides, April 14, 2011) Researchers at the University of South Florida have discovered that the most widely used fungicide in the U.S., chlorothalonil, is lethal to frogs even at low doses. Chemical pollution, according to the researchers, is considered the second greatest threat to aquatic and amphibious species in the U.S. Because many vital systems of amphibians are similar to those in humans, researchers believe that amphibians may be an underused model for studying the impacts of chemicals in the environment on human health and set out to quantify amphibian responses to chlorothalonil. The study, lead by Teagan McMahon, PhD, was published in Environmental Health Perspectives and opens the door for researchers to quantify the effects of the chemical on other species as well as other toxic pesticides on amphibian populations and human health. Researchers looked at Rana sphenocephala (Southern leopard frog) and Osteopilus septentrionalis (Cuban treefrog) in outdoor aquatic mesocosms (experimental water enclosures) with and without the expected environmental concentration as well as twice the amount of chlorothalonil. They also conducted two dose-response experiments on O. septentrionalis, Hyla squirella (squirrel treefrog), H. cinerea (green treefrogs), and R. sphenocephala, evaluating the effects of the fungicide on the stress hormone […]

(Beyond Pesticides, March 18, 2011) As a result of recent court mandated consultations under the Endangered Species Act (ESA) concerning pacific salmon and steel head, the U.S. Environmental Protection Agency (EPA) in a letter to the National Research Council (NRC) is requesting the convening of a committee of independent experts to assist in the review of special scientific and technical issues that have arisen as the agency attempts to stem the impact of pesticides on these endangered species. Citing issues of scientific complexity and high importance, the letter authored by EPA Administrator Lisa Jackson, requests on behalf of the EPA, the Fish and Wildlife Service and the National Marine Fisheries Service (NMFS), a “concerted, closely coordinated effort” to address these issues openly and actively. NRC’s assistance is sought due to the number of complex scientific issues brought to the attention of the agencies as they complete consultations under the ESA concerning the impact of pesticides on endangered salmon and steelhead. Even though calls for EPA to holistically review pesticides have been made by scientists and the environmental community before, EPA is now seeking advice in assessing the effect of pesticides and other Federal Insecticide, Fungicide and Rodenticide Act (FIFRA)-related actions […]

(Beyond Pesticides, January 24, 2011) Citing the U.S. Environmental Protections Agency’s failure to protect over 200 endangered species from pesticides under the Endangered Species Act (ESA), two national environmental groups filed on January 20, 2011 a lawsuit to force agency implementation of the act. In what is penned by the groups, the Center for Biological Diversity and Pesticide Action Network North America (PANNA), as the most comprehensive legal action ever brought under ESA, the lawsuit specifically challenges EPA’s failure to consult with the U.S. Fish and Wildlife Service (FWS) and National Marine Fisheries Service on the impacts of hundreds of EPA-registered pesticides that are known to be harmful to endangered and threatened species. “For decades, the EPA has turned a blind eye to the disastrous effects pesticides can have on some of America’s rarest species,” said Jeff Miller, a conservation advocate with the Center. “This lawsuit is intended to force the EPA to follow the law and ensure that harmful chemicals are not sprayed in endangered species habitats.” According to EPA, the Endangered Species Act requires federal agencies, in consultation with FWS and/or the NOAA Fisheries Service, “to ensure that actions they authorize, fund, or carry out are not likely […]

(Beyond Pesticides, December 16, 2010)The Center for Biological Diversity notified the U.S. Fish and Wildlife Service (USFWS) and U.S. Environmental Protection Agency (EPA) December 15 of its intent to sue the agencies for failing to study and act on threats posed by more than 60 pesticides to the threatened California red-legged frog. A 2006 legal settlement secured by the Center required the EPA to assess the impacts of pesticides on the frog, then consult with the U.S. Fish and Wildlife Service (USFWS) under the Endangered Species Act to address those impacts, by 2009. The completed assessments were submitted to the Wildlife Service between March 2007 and October 2009. Although EPA determined that 64 registered pesticides are likely to harm the frogs, the Service has not completed any consultations or adopted protective measures. “The EPA acknowledges that scores of pesticides may be dangerous to California’s rare red-legged frogs, but nothing’s been done about it,” said Jeff Miller, a conservation advocate with the Center. “This three-year delay violates the Endangered Species Act and jeopardizes the future of the largest native frog in California.” Historically abundant throughout California, red-legged frogs have declined in numbers over 90 percent and have disappeared from 70 percent […]

(Beyond Pesticides, December 15, 2010) Every year, more than 10,000 kids are poisoned by rodenticides (pesticides made to kill rodents) and virtually all of the calls to U.S. poison control centers concern children under six. New rules and restrictions set by the U.S. Environmental Protection Agency (EPA) will go into effect next June in an attempt to prevent incidents involving children, but do not go far enough to protect children or wildlife. EPA has known for a generation that children have easy access to these super-toxic rat poisons. Every year, more than 10,000 kids are getting a hold of them, with Black and Hispanic children living below the poverty line being disproportionately affected. Records show that the EPA is aware that children have been getting into these poisons in significant numbers, according to data since 1983. Between 2004 and 2008, U.S. poison control centers continued to receive 10,000 to 14,000 calls about the rat killers annually. EPA has estimated that these incidents reported to poison control centers probably account for only about one-fourth of all exposures. On average, about 3,700 of these cases are treated by medical professionals each year, according to reports of the American Association of Poison Control […]

(Beyond Pesticides, December 1, 2010) Several fishing and environmental conservation groups are suing the U.S. Environmental Protection Agency (EPA) for failing to limit the use of six agricultural pesticides to protect salmon. Restrictions on the use of six pesticides in Oregon, Washington and California shown to harm endangered salmon and steelhead, were ordered after a court found that EPA violated the Endangered Species Act (ESA) by failing to restrict the pesticides from entering salmon habitat. However EPA has failed to act to restrict the pesticides. The lawsuit, filed in U.S. District Court in Washington is the fourth lawsuit the plainstiffs -Northwest Coalition for Alternatives to Pesticides, Pacific Coast Federation of Fishermen’s Associations; Institute for Fisheries Resources and Defenders of Wildlife- brought against the EPA to restrict the pesticides diazinon, malathion, chlorpyrifos, carbaryl, carbofuran and methomyl in streams of endangered salmon and steelhead. The plaintiffs seek a judgment declaring that EPA’s failure to implement the organophosphate (OP) and carbamate biological opinions issued by the National Marine Fisheries Service (NMFS) violates the ESA, and a judgment declaring that EPA is taking listed salmonids in violation of the ESA. The lawsuit seeks an order vacating and enjoining EPA’s authorization of the uses of […]

(Beyond Pesticides, October 19, 2010) In addition to the ongoing investigation into the death of nearly 1,000 lobsters last fall around waters in New England and Canada, Environment Canada is now investigating the possible release of a pesticide that is not permitted for use in Canada. The pesticide, cypermethrin, is used in the U.S., including Maine, to control sea lice outbreaks in salmon farms, a practice under investigation. Cypermethrin is toxic to lobsters, and fishermen associations have been calling for the elimination of the use of pesticides in the marine environment. Fish farmers have been challenged in controlling sea lice outbreaks this summer, particularly in the upper Passamaquoddy Bay area. They have been using other chemicals to control the outbreaks, including hydrogen peroxide, Salmosan (azamethiphos), SLICE (emamectin benzoate) and Calicide (teflubenzuron). New Brunswick aquaculture organizations have maintained that fish farmers do not use cypermethrin, which is not permitted for use there. The New Brunswick Salmon Growers Association referred to the cocktail of pesticides used on salmon farms as “medicine” and referred to salmon farming techniques as “natural.” However, shoddy farming practices, such as growing too many fish per site and having too many sites in the same area, can lead […]

(Beyond Pesticides, September 8, 2010) The U.S. Environmental Protection Agency (EPA) has received a new Biological Opinion from the National Marine Fisheries Service (NMFS) with a finding that the application of products containing any of 12 organophosphate (OP) pesticides are likely to jeopardize federally listed threatened or endangered Pacific salmon and steelhead and their designated critical habitat. The 12 OPs addressed in this Biological Opinion, issued under the Endangered Species Act, are azinphos-methyl, bensulide, dimethoate, disulfoton, ethoprop, fenamiphos, methamidophos, methidathion, methyl parathion, naled, phorate, and phosmet. This opinion concludes that EPA’s registration of pesticides containing bensulide, dimethoate, ethoprop, methidathion, naled, phorate, and phosmet are each likely to jeopardize the continued existence of one or more of the 28 endangered and threatened Pacific salmonids and are each likely to destroy or adversely modify designated critical habitat for one or more of the 28 threatened and endangered salmonids. NMFS reached this conclusion because predicted concentrations of these seven pesticides in salmonid habitats, particularly in floodplain habitats, are likely to cause adverse effects to at least one listed Pacific salmonids including significant reductions in growth or survival. EPA’s registration of bensulide, dimethoate, ethoprop, methidathion, naled, phorate, and phosmet is also likely to result […]

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

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

(Beyond Pesticides, June 25, 2010) Two new studies published in the journal Environmental Science and Technology confirm that the majority of toxic contamination threatening national parks originates from agricultural pesticides and industrial operations. In one study an international group of scientists conducted research from 2003-2005 and detected elevated concentrations of various dangerous pesticides in all eight of the national parks and preserves. The other study collected samples of air, water, snow, sediment, lichens, conifer needles, and fish at remote alpine, subarctic, and arctic sites. Researchers found that these samples contained four current-use pesticides including dacthal (DCPA), chlorpyrifos, endosulfans, and y-hexachlorocyclohexane (HGH) as well as four historic-use pesticides including dieldrin, a-HCH, chlordanes, and hexachlorobenzene (HCB). Pesticide concentrations in snow are highest in Sequoia, Kings Canyon, Rocky Mountain and Glacier National Parks. Concentrations in vegetation are mostly dominated by endosulfan and dacthal, and are highest in Yosemite, Kings Canyon, Glacier, and Great Sand Dunes National Park and Preserve. Fish samples also show elevated concentrations of dieldrin and DDT (one of the first pesticides to be banned in 1972 because of Rachel Carson’s Silent Spring). Cold temperatures in alpine or arctic ecosystems tend to concentrate pesticides, which can also bioaccumulate in the local […]