(Beyond Pesticides, August 6, 2010) Organic farmers and gardeners across a Washington state county suspect that herbicide-contaminated manure and compost obtained from non-organic farms and dairies are responsible for severe crop loss reported throughout the region, raising questions about the adequacy of the U.S. Environmental Protection Agency’s (EPA) pesticide registration process. Tests of soil and tissue samples of local dairy manure that is used in soil and compost mixtures revealed small amounts of aminopyralid, a potent and persistent herbicide approved for use by EPA in 2005. Aminopyralid is generally used for weed control in pastures and fields that grow silage crops for dairy cows. When cows eat the grass that has been treated with the chemical, it passes through them unchanged and remains in their manure in concentrations that can still be high enough to damage broadleaf crops if the manure is used to fertilize them. Aminopyralid is produced by Dow AgroSciences, a subsidiary of Dow Chemical Co., and often manufactured under the product name Milestone. Former coordinator of the Washington State University master gardeners’ program Jill Cotton has noticed the damage in her garden and said reports continue to filter in from other gardens around the county. One Whatcom […]

(Beyond Pesticides, August 5, 2010) A 400-year old large old grape vine considered to be the nation’s oldest in Manteo, North Carolina and known lovingly as “Mother Vine,” is slowly recovering from a powerful dose of herbicide sprayed by a utility company. The Virginia-based Dominion Power Company contracted Lewis Tree Service to spray power poles along the roads in the Manteo in May. The herbicide they used, Garlon3A, was accidentally sprayed on a tiny shoot from the vine that had grown a few feet up a pole on 84-year old Jack Wilson’s property. Unaware of the recent herbicide spraying by the utility power company, he noticed various brown, dead sections that began to appear in the plant in May. Not only did the vine suffer, but about 10 feet of a nearby hedge died, along with three limbs of a large pecan tree that had to be trimmed. The active ingredient in Garlon 3A, a Dow Chemical product, is triclopyr. It is a systemic herbicide which means that the poison spreads from the ends of the vine back toward the root. As a broadleaf weed killer, triclopyr is frequently used along rights-of-way and on industrial sites. In laboratory tests, triclopyr […]

(Beyond Pesticides, August 3, 2010) A new study shows that due to a flaw in standard risk assessments, which consider toxic effects at fixed exposure times, the risks posed by the neonicotinoid pesticides imidacloprid and thiacloprid are likely to be underestimated. The authors believe that minute quantities of imidicloprid may be playing a much larger role in killing bees over extended periods of time than previously thought. The study, “The significance of the Druckrey—Küpfmüller equation for risk assessment””The toxicity of neonicotinoid insecticides to arthropods is reinforced by exposure time,” was published online July 23, 2010 in the journal Toxicology. The authors believe that standard risk assessment calculations underestimate toxicity because they do not accurately account for the interplay of time and level of exposure. According the study: The essence of the Druckrey—Küpfmüller equation states that the total dose required to produce the same effect decreases with decreasing exposure levels, even though the exposure times required to produce the same effect increase with decreasing exposure levels. Druckrey and Küpfmüller inferred that if both receptor binding and the effect are irreversible, exposure time would reinforce the effect. The Druckrey—Küpfmüller equation explains why toxicity may occur after prolonged exposure to very low toxicant […]

(Beyond Pesticides, July 30, 2010) Adding to a campaign that Beyond Pesticides launched in 2004 to alert the public and pressure government to restrict the highly toxic antibacterial chemical triclosan -commonly found in antibacterial soaps and household and consumer products, the Natural Resources Defense Council (NRDC) filed a lawsuit earlier this week against the Food and Drug Administration (FDA) for failing to issue a final rule regulating the chemical. The lawsuit follows on the heels of two petitions filed by Beyond Pesticides and Food and Water Watch in 2009 and 2010 with FDA and the U.S. Environmental Protection Agency (EPA), respectively, to ban the chemical. Because of the widespread poisoning and environmental contamination caused by triclosan, the petitions cite numerous violations of statutory duties under the Federal Food, Drug and Cosmetics Act, Federal Insecticide, Fungicide, and Rodenticide Act, Clean Water Act, Safe Drinking Water Act, and Endangered Species Act. The NRDC lawsuit adds yet another dimension to the legal violations involving agency malfeasance on triclosan by asking the court to impose a strict deadline for FDA to finalize a proposed rule that has been pending for 32 years and could ban many uses of triclosan and its chemical cousin triclocarban. […]

(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 23, 2010) A new study published in BioMed’s online journal, Environmental Health, links endocrine disrupting pesticides and other chemicals in household cleaning products to an elevated risk of breast cancer. Researchers at the Silent Spring Institute in Newton, MA and Boston University found that women who use household cleaners more often have double the risk of breast cancer, compared to women who use household cleaners less frequently. The study includes over 1,500 women selected from Cape Cod, MA and found a correlation between cases of breast cancer and the number of women who reported using household cleaners, particularly solid, slow-release air fresheners when used more than seven times a year, and mold removers when used more than once a week. The antimicrobials, phthalates and alkylphenolic surfactants often found in mold and mildew products are associated with various health and environmental issues. The antimicrobial triclosan for example, can cause skin irritation, allergy susceptibility, bacterial and compounded antibiotic resistance, and dioxin that jeopardizes fragile aquatic ecosystems. The study highlights methylene chloride (in some fabric cleaners), nitrobenzene (soaps, polishes), perfluorinated compounds (stainresistant, waterproof coatings), phthalates (surfactants), alkylphenols (solvents), parabens (preservatives), triclosan, and polycyclic musks (fragrance) as ingredients of concern. Past […]

(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 21, 2010) Alaska’s Supreme Court halted plans to use glyphosate to kill weeds along track owned by the Alaska Railroad, which is believed to be the only herbicide-free stretch of rail in the country. This decision is in response to an emergency petition filed by Alaska Community Action on Toxics (ACAT) and others against the Alaska Department of Environmental Conservation and the Alaska Railroad Corporation (ARC) who requested the use of glyphosate for weed control. On June 2, 2010, ACAT joined with other community groups in challenging a permit that would allow the Alaska Railroad to spray toxic herbicides along the railbelt from Seward to Indian for the first time in 26 years. On July 14, 2010, the court ordered a temporary temporary restraining order and prelminary injunction for the planned spray program, in response to an emergency petition (and memorandum of points and authorities) filed by Alaska Community Action on Toxics, Alaska Center for the Environment, Alaska Survival, Cook InletKeeper and the Native Village of Eklutna. The Alaska Railroad Corporation requested permission to use the herbicide glyphosate, the active ingredient in Roundup and Agri-Dex, along a 90 mile stretch of its track between Seward and Indian. […]

(Beyond Pesticides, July 20, 2010) Washington state has denied approval of the highly toxic fumigant-based pesticide methyl iodide, and environmentalists hope other regulators follow its lead. Citing unreasonable adverse effects on human health and the environment, the Washington Department of Agriculture requested that Arysta LifeScience withdraw its application for the registration of methyl iodide on July 15, 2010. Beyond Pesticides encourages its California members and allies to contact the Governor’s office and ask that California, which is expected to make its final decision on the pesticide this month, follow Washington’s lead. All are encouraged to contact the U.S. Environmental Protection Agency (EPA) and ask that it reevaluate its decision to register methyl iodide. Find instructions for contacting the governor and EPA below. In a letter to Arysta LifeScience, Erik Johansen, Special Pesticide Registration Program Coordinator for the Washington Department of Agriculture stated, “WSDA is concerned that the proposed use of Midas products labeled in Washington could cause unreasonable adverse effects on human health and the environment.” Specific concerns stated in the letter include: potential for groundwater contamination; lack of data related to the pesticide’s ability to damage brain development; and cancer risk. Methyl iodide is promoted by the pesticide industry […]

(Beyond Pesticides, July 16, 2010) Under pressure from the grassroots group Alaska Community Action on Toxics (ACAT), the city of Anchorage canceled plans to spray the herbicides 2,4-D and dicamba on the Town Square Park citing concerns over the safety of children playing in the park. ACAT members attended the Anchorage Assembly public meeting with an NBC TV affiliate and discussed their reservations over spraying Town Square Park, a popular gathering place for families, workers eating their lunches, and tourists. Soon after, the mayor announced the spraying would be canceled, and that the city would remove dandelions by hand. Environmentalists called the decision a victory for the health of Anchorage residents and the environment. 2,4-D is associated with a host of adverse human impacts, such as non-Hodgkin’s lymphoma, endocrine disruption, reproductive and developmental effects, as well as water contamination and toxicity to aquatic organisms. It is one of the most widely used herbicide for the control of broadleaf weeds in commercial agriculture and residential landscapes in the U.S. About 46 million pounds of 2,4-D are used annually, with 16 million pounds used in non-agricultural settings, including parks, playing fields, and residential lawns. Its health risks prompted a Special Review in […]

(Beyond Pesticides, July 15, 2010) Swiss chemical manufacturing giant Syngenta, one of the makers of the commonly used and heavily scrutinized pesticides atrazine, are speaking out against anti-pesticide activists and the U.S. Environmental Protection Agency’s (EPA) review of atrazine. Despite mounting peer-reviewed scientific literature and research, Syngenta refuses to acknowledge the dangers of atrazine and, according to Legal Newsline, claims that the review is “redundant,” and merely “an unprecedented war on agriculture by anti-pesticide activists.” The company, which made over $11 billion in sales in 2009 even accuses the Natural Resources Defense Council (NRDC), which has spearheaded a campaign to persuade EPA to initiate reviews, of being “slick” and “well-funded.” Other critics of the agency’s decision include the American Council on Science and Health (ACSH), a group that has in the past received funding from Monsanto and Union Carbide (according to the group Center for Science in the Public Interest, ACSH stopped disclosing corporate donors in the early 1990’s). Dr. Gilbert Ross, medical director of ACSH told Legal Newswire that they believe EPA Administrator Lisa P. Jackson to be “cooperating with, if not spearheading, a broad-based activist agenda.” An article by The Huffington Post Investigative Fund published last week, however, […]

(Beyond Pesticides, June 30, 2010) The U.S. Environmental Protection Agency (EPA) approval process for thousands of antimicrobial products is woefully inadequate, according Public Employees for Environmental Responsibility (PEER). Despite a growing body of scientific evidence about the side-effects of these products, EPA rubberstamps registrations without duly considering an array of potential public health and environmental impacts. Antimicrobials are now a billion dollar business with more than 5,000 such products currently registered with EPA. Initially designed for hospitals and clinics, antimicrobial pesticides are today found in products ranging from household cleaners to mattresses and bedding, cosmetics, toys, toothpaste and even chopsticks. Antibacterial products are being marketed to the health conscious without firm evidence of real benefits and amid growing concern about downstream consequences. One prime example of this is the antibacterial pesticide triclosan that is formulated into hundreds of personal care products, toys and textiles. Studies show that triclosan is an endocrine disruptor, accumulates in human fatty tissue and can influence the onset of bacterial resistance. Beyond Pesticides, Food and Water Watch and several other groups petitioned FDA in 2009 and EPA in January 2010, calling for the ban of triclosan citing the possibility of bacterial resistance to antibacterial substances and […]

(Beyond Pesticides, June 28, 2010) A new report documents high levels of pesticide drift in the California community of Sisquoc. Poison Gases in the Field: Pesticides put California families in danger, released by Pesticide Action Network North America and local community members, presents results of community air monitoring for fumigant pesticides in the central coast area of California, in Santa Barbara County. Using a simple monitoring device called the Drift Catcher, community members measured levels of a fumigant pesticide above the California Department of Pesticide Regulation’s (DPR) “level of concern” — even when all application rules were followed and no equipment failure occurred. “While we were monitoring the air, there were no violations of the County’s permit – and yet we found we were still breathing chloropicrin at high levels,” says Deby DeWeese, one of the community members who collected air samples. “Clearly the rules and regulations do not protect our families.” The Sisquoc monitoring, conducted during and after a soil fumigation in April 2008, found the pesticide chloropicrin in about half of the 57 air samples collected. Two samples had chloropicrin levels higher than DPR’s 24-hour level of concern for children, and the 19-day average level at one sampling […]

(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 18, 2010) A panel of U.S. and Vietnamese policy makers, scientists, and citizens released a report on Wednesday urging the U.S. government and other donors to provide $300 million to clean up contaminated sites and care for Vietnamese harmed by exposure to Agent Orange, an herbicide used by the U.S. to defoliate large swaths of forest during the Vietnam War that was contaminated by dioxin. Dioxin is a very persistent toxicant that clings to the soil and sediments, and bioaccumulates in the food chain. Many studies have linked dioxin exposure to a myriad of health effects including cancer, neuropathy, diabetes, Parkinson’s Disease, and birth defects. This report comes one month before the U.S. and Vietnam will celebrate 15 years of normalized diplomatic relations. The U.S.-Vietnam Dialogue Group on Agent Orange/Dioxin released the report calling for an estimated $30 million annually for the next 10 years. Since 2007, the U.S. has spent only $9 million on dioxin remediation and assisting disabled Vietnamese. The report lays out a plan with three phases. The first phase, lasting three years and estimated to cost $100 million, would focus on completing remediation in Da Nang, one of the largest contaminated sites. This […]

(Beyond Pesticides, June 17, 2010) Researchers have found detectable levels of common household pesticides in the majority of umbilical cord blood of babies born at an urban hospital. The study looks at concentrations of organophosphate (OP), carbamate, pyrethroids, and organochlorine pesticides in samples of umbilical cord blood taken from newborns delivered at the Johns Hopkins Hospital Labor and Delivery Suite in Baltimore. Researchers looked at the umbilical cord serum, as opposed to maternal serum, in order to provide a more direct estimate of exposure to the fetus. While human biomonitoring studies have found detectable levels of these pesticide chemicals in urine and blood samples from children and adults in the past, few studies have been carried out in the U.S. evaluating exposure in utero. In addition to tracking pesticide concentrations, researchers also aimed to identify demographic and socioeconomics factors associated with in utero pesticide exposure. Anonymous anthropometric and sociodemographic characteristics of the mothers and infants were collected along with umbilical cord blood that would have otherwise been discarded. Included in the characteristics collected that researchers considered might affect pesticide exposure risk were: age, race, body mass index, parity, education, health insurance, marital status, smoking, area of residence and housing density. […]

(Beyond Pesticides, June 16, 2010) Men with certain genetic variations who were exposed to some toxic pesticides that are now largely banned run an increased risk of developing Parkinson’s disease, French scientists said Monday. In a study published in Archives of Neurology, entitled “Interaction Between ABCB1 and Professional Exposure to Organochlorine Insecticides in Parkinson Disease,” French researchers found that among men exposed to pesticides such as DDT, carriers of the gene variants are three and a half times more likely to develop Parkinson’s than those with the more common version of the gene. The scientists think the brains of people with the gene variant fail to flush out toxic chemicals as efficiently as those with common versions of the gene, suggesting that environmental as well as genetic factors are important in the risk of Parkinson’s. Alexis Elbaz, MD, PhD and Fabien Dutheil, PhD, of France’s National Institute for Health and Medical Research (INSERM) studied 101 men with Parkinson’s and 234 without the disease to look at links between organochlorine exposure and Parkinson’s disease. The study includes only men, and all of them had high levels of exposure to pesticides through their work as farmers. The scientists found the link was […]

(Beyond Pesticide, June 11, 2010) The Environmental Protection Agency (EPA) has refused the state of Ohio’s request for an emergency exemption to use the restricted pesticide propoxur in residential settings for control of bed bugs, stating that the chemical “presents unreasonable risk.” Propoxur is a highly toxic, broad spectrum insecticide. All indoor residential uses of this known neurotoxic chemical and possible carcinogen were voluntarily canceled in 2007. The Ohio Department of Agriculture, deeming the increases in bed bug infestations an emergency, requested an exemption to use propoxur in residential areas and in May the Ohio Senate’s Environment and Natural Resources Committee adopted a unanimous resolution urging the EPA to grant it. Beyond Pesticides, with coalition of environmental and public health groups, opposed the request and asked EPA to deny the exemption, citing the serious public health threat associated with the chemical, as well as the availability of alternatives. EPA determined “the requested use presents an unacceptable risk,” according to Administrator Lisa Jackson, in a letter to Ohio Governor Ted Strickland dated June 2, 2010. “Although EPA recognizes the severe and urgent challenges that Ohio is facing from bed bugs, the results of the risk assessment do not support the necessary […]

(Beyond Pesticides, June 10, 2010) After years of pressure from environmental and international groups concerned about the chemical’s health effects, the U.S. Environmental Protection Agencey (EPA) announced that it is taking action to end all uses of the insecticide endosulfan in the United States. EPA has decided that new data presented to the agency in response to its 2002 reregistration eligibility decision (RED) have shown that risks faced by workers are greater than previously known. EPA also has found that there are risks above the agency’s level of concern to aquatic and terrestrial wildlife, as well as to birds and mammals that consume aquatic prey which have ingested endosulfan. Farmworkers can be exposed to endosulfan through inhalation and contact with the skin. An organochlorine insecticide first registered in the 1950s, endosulfan is used on a variety of vegetables, fruits, cotton, and on ornatmental shrubs, trees and vines. It poses unacceptable neurological and reproductive risks to farmworkers and wildlife and can persist in the environment. According to the EPA, crops with the highest use in 2006 — 2008 included tomato, cucurbit, potato, apple, and cotton. The use of endosulfan decreased overall from 2001 to 2008. A restricted use pesticide, endosulfan may […]

(Beyond Pesticides, June 7, 2010) With thousands of violations cited, the pest control company and applicator responsible for the deaths of two young children are only fined several tens of thousands of dollars, a mere slap on the hand. The Utah Department of Agriculture and Food’s (UDAF) Division of Plant Industry has finally filed multiple charges of violations against Bugman Pest and Lawn, Inc. of Bountiful, Utah, and employee Cole Nocks associated with the February 5, 2010 application of the pesticide Fumitoxin (active ingredient: aluminum phosphide) at the residence of Nathan and Brenda Toone of Layton, Utah that lead to the death of their two daughters ages 15-months and 4 years. In addition to the Layton incident, investigators discovered additional violations of the Utah Pesticide Control Act by the company and other employees. The UDAF seeks to revoke Mr. Nocks’s applicator license and has issued him a $27,000 fine, while Bugman Pest and Lawn, Inc. is fined $32,000. Under law, the UDAF is only allowed to file civil penalties. Investigators determined that on February 5, 2010 applicator Cole Nocks operated in a faulty, careless or negligent manner by misapplying the highly toxic and restricted use pesticide, Fumitoxin. Mr. Nocks’s improper […]

(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 […]