(Beyond Pesticides, December 17, 2010) Secretary of Agriculture Tom Vilsack disappointed organic farmers and consumers, as well as environmentalists when he announced December 16, 2010 that the U.S. Department of Agriculture was considering “deregulating” a genetically engineered crop that is tied to genetic drift, superweeds, and the use of a hazardous pesticide -Monsanto’s genetically-engineered (GE) Roundup (glyphosate) Ready (RR) alfalfa. The Department released a 2,400 page Environmental Impact Statement (EIS) as required by a 2007 Federal District Court decision and upheld by both 2009 Ninth Circuit Court of Appeals and June 2010 U.S. Supreme Court rulings. The litigation was led by the Center for Food Safety, and joined by Beyond Pesticides, and other groups, including organic seed companies and producers. A broad coalition of groups has previously called for USDA to deny approval of Monsanto’s genetically engineered, Roundup Ready alfalfa (GE alfalfa). In March, more than 200,000 people submitted comments to USDA critiquing the substance and conclusions of its Draft EIS on GE Alfalfa. In addition, more than 300 public interest organizations, farmers, dairies, retailers and organic food producers from the U.S. and Canada delivered a critical letter to USDA. U.S. Senator Patrick Leahy (D-Vt.) and Rep. Peter DeFazio (D-OR), […]

(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 14, 2010) A petition of more than a million signatures was presented to the European Commission last week, demanding a halt to approvals of new genetically modified (GM) crops and the establishment of up a new scientific body to study the impact of the technology and determine regulations. Greenpeace led the effort. The petition is seen as a test case for the “European citizen’s initiative,” introduced under the European Union’s new constitutional treaty, which enables a million or more people to jointly ask the European Commission to change EU legislation. It follows the Commission’s decision in March to grant the first EU GM cultivation approval in 12 years for the “Amflora” potato. “Over a million people across Europe have set the EU a democratic test — will the EU address the real concern people have about GM crops and food, or will it side with the chemical industry lobbyists controlling GM technology?” Greenpeace’s EU Director Jorgo Riss said. “Until safety issues of GMs are examined by independent experts, all GM authorizations should stop.” A spokesman for the EU executive said it would treat the signatures “as a petition in the spirit of the citizen’s initiative,” Despite the […]

(Beyond Pesticides, December 7, 2010) Last week, Federal District Judge Jeffrey S. White issued a preliminary injunction ordering the immediate destruction of hundreds of acres of genetically engineered (GE) sugar beet seedlings planted in September after finding the seedlings had been planted in violation of federal law. The ruling comes in a lawsuit filed by Earthjustice and CFS on behalf of a coalition of farmers and conservation groups. The lawsuit was filed on September 9, shortly after the U.S. Department of Agriculture (USDA) revealed it had allowed the seedlings to be planted. The court outlined the many ways in which GE sugar beets could harm the environment and consumers, noting that containment efforts were insufficient and past contamination incidents were “too numerous” to allow the illegal crop to remain in the ground. In his court order, Judge White noted, “Farmers and consumers would likely suffer harm from cross-contamination” between GE sugar beets and non-GE crops. He continued, “The legality of Defendants’ conduct does not even appear to be a close question,” noting that the government and Monsanto had tried to circumvent his prior ruling which made GE sugar beets illegal. Paul Achitoff of Earthjustice, lead counsel for the plaintiffs, said, […]

(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, October 18, 2010) Despite condemnation from environmentalists and human rights advocates, the business practices employed by biotech giant Monsanto seemed to be serving the St. Louis-based company well, until this year where disappointing sales, increased competition and even a federal investigation have sent stock prices into a downward spiral. Monsanto’s Roundup Ready corn, soy, and other crops have been engineered to resist the broad spectrum herbicide glyphosate, sold by Monsanto under the trade name Roundup. Monsanto holds the patent for its Roundup Ready seeds, meaning farmers must sign a contract with the company in order to purchase seeds, and are not allowed to save seeds to plant the following season. As seen in the recent documentary Food Inc., Monsanto has been ruthless in collecting royalties from growers. Despite Monsanto’s safety claims, glyphosate is actually very dangerous to human health and the environment. Glyphosate has been linked to cancers including non-Hodgkin’s lymphoma. Acute exposure can lead to swelling of the eyes, face and joints; burning or itching, blisters rapid heart rate, chest pains and other symptoms. The California Department of Pesticide Regulation has found glyphosate to be the most common cause of pesticide-induced illness or injury. Glyphosate is also […]

(Beyond Pesticides, October 14, 2010) Over 13,000 organizations and individuals -consumers, parents, health advocates, farmworkers and others- from across the U.S. sent a letter to the Environmental Protection Agency (EPA) yesterday calling for a ban on the insecticide chlorpyrifos and a phase out of other organophosphate (OP) pesticides. Chlorpyrifos was phased out for residential use under a 2000 agreement between EPA and Dow Agrosciences, but continues to expose farmworkers and consumers through its use in agriculture. Also on October 13, the Endocrine Disruption Exchange (TEDX), led by renowned scientist Theo Colborn, PhD, announced the addition of chlorpyrifos to its online database, Critical Windows of Development, spotlighting research that links prenatal, low dose chlorpyrifos exposure to altered health outcomes in the brain and other organs. “Human studies have now linked prenatal exposure to chlorpyrifos with mental and developmental delays emphasizing even more the urgency to remove the product from the market,” said Dr. Colborn, President of TEDX and a signatory on the letter. “Chlorpyrifos illustrates the urgent need to be cautious, prevent further exposure and protect our children from the time they are conceived onward.” Beyond Pesticides calls EPA’s 2000 chlorpyrifos settlement with Dow a classic failure of the risk assessment […]

(Beyond Pesticides, October 6, 2010) Organic and genetically modified organism (GMO)-free conventional farmers and food processors need legal certainty that they can continue to produce food free of GMO contamination. This, according to the International Federation of Organic Agriculture Movements (IFOAM)— EU Regional Group, which responded to a presentation by EU Commissioner for Health and Consumer Protection John Dalli on “best practice document” for genetically modified (GM) maize. The best practice document outlines voluntary guidelines for the coexistence of genetically modified crops with conventional and organic farming, but fails to address the economic and social impacts on contaminated non-GMO farms. Commissioner Dalli presented to the Farm Council proposals on GMO cultivation, as well as a new “best practice document” for maize. “Commissioner Dalli is trying to snake his way through crucial GMO policies by attempting to satisfy all conflicting parties with his proposals to the Farm Council this morning. But his approach still fails to solve the main problems,” comments Christopher Stopes, President of the IFOAM EU Group. “Consumers refuse to eat GMOs which is their democratic right.” The best practice document authored by the European Coexistence Bureau, developed in light of a July 2010 recommendation, reflects the possibility for […]

(Beyond Pesticides, October 1, 2010) A new study by University of Notre Dame ecologist Jennifer Tank, PhD and colleagues reveals that streams throughout the Midwest are contaminated with transgenic materials from corn crop byproducts, even six months after harvest. The transgenic corn has been genetically engineered (GE) to produce its own insecticide, a toxin from the soil bacterium Bacillus thuringiensis (Bt). In a 2007 paper in the Proceedings of the National Academy of Science (PNAS), Dr. Tank and a group of researchers demonstrated that transgenic materials from corn (pollen, leaves, cobs) do, in fact, enter streams and can be subsequently transported to downstream water bodies. In a paper, “Occurrence of maize detritus and a transgenic insecticidal protein (Cry1Ab) within the stream network of an agricultural landscape,” published in the September 27, 2010 edition of PNAS, the researchers write about their nvestigation of the fate and persistence of the material and its associated Cry1Ab insecticidal protein, using a synoptic field survey of 217 stream sites in northwestern Indiana six months after crop harvest. “We found that corn crop byproducts were common in agricultural streams and that 86 percent of sites contained corn leaves, cobs, husks and/or stalks in the active stream […]

(Beyond Pesticides, September 13, 2010) Several groups opposed to genetically engineered (GE) foods filed suit in San Francisco against the USDA on Thursday to stop the agency from sidestepping National Environmental Policy Act (NEPA) regulations and allowing the planting of GE sugar beets. Government approval of the crop was revoked in August; however, USDA announced on September 1 it would issue permits allowing farmers to plant GE sugar beets as long as the crop did not flower. The plaintiffs, which include Center for Food Safety, Sierra Club, Organic Seed Alliance, and High Mowing Organic Seeds Company with representation from Earth Justice, contend the plantings would contaminate nearby farms with GE pollen, and again asked the judge to bar all planting of GE sugar beets. The GE sugar beets, produced by St. Louis-based Monsanto, have been engineered to be resistant to the herbicide glyphosate, sold by Monsanto under the trade name Round Up. According to the Agro Industry giant their “Round-Up Ready” Sugar Beet was adopted by North American farmers faster than any other biotech crop to date. Planting glyphosate resistant crops allows growers to apply glyphosate indiscriminately. As a result, herbicide use has jumped dramatically. Despite the prevailing myth that […]

(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, July 27, 2010) Groups filed a lawsuit in federal court to force the Environmental Protection Agency (EPA) to decide whether or not it will cancel all remaining uses and tolerances for the pesticide chlorpyrifos, which has been banned for residential use, but continues to expose farmworkers and consumers through its use in agriculture. In September 2007, the Natural Resources Defense Council (NRDC) and Pesticide Action Network North America (PANNA) filed a petition with EPA asking the agency to ban chlorpyrifos. In the nearly three years since, the agency has not responded. NRDC and PANNA v. EPA, filed by the nonprofit environmental law firm Earthjustice on July 22, 2010, would force EPA to make a decision on the pesticide’s ban. “This dangerous pesticide has no place in our fields, near our children, or on our food,” said Earthjustice attorney Kevin Regan. “We’re asking a court to rule so that EPA will finish the job and ban this poison.” According to Beyond Pesticides, EPA’s 2000 negotiated settlement with Dow AgroSciences, which allows the highest volume chlorpyrifos uses to continue, represents a classic failure of the risk assessment process (including the so-called cumulative risk assessment which accounts for all chemicals with […]

(Beyond Pesticides, July 22, 2010) In a press release submitted last week, the Monsanto Company, Inc. announced that it has taken a vital step towards commercializing a new soybean product that is tolerant to the neurotoxic pesticide dicamba by completing its regulatory submission to the U.S. Department of Agriculture (USDA) for dicamba-tolerant soybeans. Monsanto expects to complete regulatory submission to the USDA and key global markets in the coming months. The dicamba tolerance trait is expected to also be stacked with the glyphosate-resistant, or “Roundup Ready” soybean trait upon commercialization. While Monsanto claims that this is a “highly effective and economical weed control package,” it is likely to be similar to Roundup (glyphosate) Ready crops, just another way to sell more pesticide product. Monsanto is banking on the idea that mixing dicamba with glyphosate will help manage the hard-to-control broadleaf weeds in chemical-intensive farming systems, targeting both pre-plant and post-emergence weed control in an effort to reduce resistance. In a report published last year, analysts found that genetically engineered (GE) crops have been responsible for an increase of 383 million pounds of herbicide use in the U.S. over the first 13 years of commercial use of GE crops (1996-2008). The […]

(Beyond Pesticides, July 19, 2010) The Washington D.C. based Center for Food Safety (CFS) has unveiled an application for mobile phones to help shoppers quickly and easily identify foods made with ingredients from genetically modified (GM) organisms. Many consumers are leery of GM foods, yet unfortunately producers are not required to label products that contain GM ingredients, leaving consumers guessing about what they are eating. To aid consumers where regulatory oversight has failed, CFS created its new True Food Shoppers Guide Mobile Application available for free through iTunes and Android Market. GM foods were first introduced into the U.S. food supply in 1994, promising to put an end to world hunger. Using genetic engineering, scientists were expected to create drought and salt tolerant crops, with higher yields and nutrient content. These crops never materialized, however, and industry giants such as Monsanto have collected huge revenues selling insecticide producing and herbicide resistant crops to American farmers. These crops have not only failed in their promise to boost crop yields, but studies have shown that they increase the use of pesticides, and create herbicide resistant weeds. While disillusionment with GM crops grows, the US government continues to bow to industry lobbyists, refusing […]

(Beyond Pesticides, July 14, 2010) The U.S. Environmental Protection Agency (EPA) announced that Monsanto Company Inc. has agreed to pay a $2.5 million penalty to resolve misbranding violations related to the sale and distribution of cotton seed products containing genetically engineered (GE) pesticides. This is the largest civil administrative penalty settlement ever received under the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA). “This agreement shows that when a company violates the law by distributing misbranded pesticides, EPA will take action,” said Cynthia Giles, assistant administrator for EPA’s Office of Enforcement and Compliance Assurance. “The regulated community should understand that we take these violations seriously, and the public will accept nothing less than compliance.” “People who manufacture and distribute pesticide products must follow the federal registration requirements,” said Steve Owens, assistant administrator for EPA’s Office of Chemical Safety and Pollution Prevention. “These requirements are critical to preventing the development and spread of insect resistance.” Monsanto Bollgard and Bollgard II cotton seed products contain genetically engineered pesticides known as plant incorporated protectants (PIPs), which are registered as a pesticidal product under FIFRA. As a condition of the registrations, EPA included planting restrictions on Bollgard and Bollgard II, which contain the PIP Bacillus […]

(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 […]

(Beyond Pesticides, June 24, 2010) Our food purchases have a direct effect on the health of our environment and those who grow and harvest what we eat. Beyond Pesticides launched its Organic Food: Eating with a Conscience guide, which shows consumers why, according to the group, “food labeled organic is the right choice.” Jay Feldman, executive director of Beyond Pesticides, said, “In addition to serious health questions linked to actual residues of toxic pesticides on the food we eat, our food buying decisions support or reject hazardous agricultural practices, protection of farmworkers, and stewardship of the earth.” The Eating with a Conscience guide explains to consumers the effect they are having on health and the environment when they purchase food grown with chemical-intensive methods, even if a large number of residues do not remain on the finished food product. The group points to USDA organic certification as “the only system of food labeling that is subject to independent public review and oversight, assuring consumers that toxic, synthetic pesticides used in conventional agriculture are replaced by management practices focused on soil biology, biodiversity, and plant health.” “Organic practices under the Organic Foods Production Act eliminate commonly used toxic chemicals in the […]

(Beyond Pesticides, June 2, 2010) After decades-long litigation over the use of the toxic pesticide dibromochloropropane, or DBCP, in the 1970’s which has been linked to sterility and has since been banned, Dole Food Co. is proposing new settlements for farm workers claiming they were injured by exposure to the pesticide. A request has been filed by lawyers for Dole in the Los Angeles Superior Court asking that nearly 1,500 Honduran farm workers who are suing Dole be allowed to drop out of those suits and settle their claims out of court under an existing program arranged by the company and Honduran government officials. This could potentially end years of legal action inexpensively for Dole while providing compensation to workers quickly, however some people view this plan as a way for the company to back out of its responsibilities to former plantation workers. The pesticide DBCP was used by workers from Nicaragua, Costa Rica, Guatemala, Honduras, and Panama to kill worm infestations in the trees’ roots. In the U.S., DBCP was used as a soil fumigant and nematocide on over 40 different crops until 1977. According to the U.S. Environmental Protection Agency (EPA), DBCP causes male reproductive problems, including low […]

(Beyond Pesticides, June 1, 2010) Atrazine, one of the most commonly used herbicides in the world, has been shown to affect reproduction of fish at concentrations below U.S. Environmental Protection Agency’s (EPA) water-quality guideline, according to a new U.S. Geological Survey (USGS) study. “Concentrations of atrazine commonly found in agricultural streams and rivers caused reduced reproduction and spawning, as well as tissue abnormalities in laboratory studies with fish,” said USGS scientist Donald Tillitt, Ph.D., the lead author of the study, “Atrazine Reduces Reproduction in Fathead Minnow (Pimephales promelas)” published in Aquatic Toxicology. Fathead minnows were exposed to atrazine at the USGS Columbia Environmental Research Center in Columbia, Missouri, and observed for effects on egg production, tissue abnormalities and hormone levels. Fish were exposed to concentrations ranging from zero to 50 micrograms per liter of atrazine for up to 30 days. All tested levels of exposure are less than the EPA Office of Pesticides Aquatic Life Benchmark of 65 micrograms per liter for chronic exposure of fish. Study results show that normal reproductive cycling was disrupted by atrazine and fish did not spawn as much or as well when exposed to atrazine. Researchers found that total egg production was lower in […]