(Beyond Pesticides, November 15, 2010) A new study suggests the widespread use of the antimicrobial triclosan may be inhibiting the aquatic bacteria and algae needed for a healthy ecosystem. Triclosan is an antibacterial compound found in a wide variety of household products including soaps, cosmetics, toothpaste, flooring, textiles, and even children’s toys. According to the study entitled “Triclosan persistence through wastewater treatment plants and its potential toxic effects on river biofilms,” when triclosan finds its way into rivers and streams it can inhibit photosynthesis in algae and kill bacteria. The study examined a group of algae known as diatoms. Through photosynthesis, diatoms produce food as well as oxygen needed for other organisms. Diatoms produce an estimated 80 percent of the oxygen in our atmosphere making them essential to life on earth. When introduced to the market in 1972, triclosan was confined to hospital and health care settings. Aided by the false public perception that antibacterial products are best to protect and safeguard against potential harmful bacteria, triclosan has since exploded in the marketplace in hundreds of consumer products ranging from antibacterial soaps, deodorants, toothpastes, cosmetics, fabrics, toys, and other household and personal care products. Due to the prevalence of this […]

(Beyond Pesticides, November 10, 2010) A University of Florida, Gainesville study reports that the antibacterial pesticide triclosan, found in toothpaste, soaps, toys and clothing, interferes with estrogen metabolism in women and can disrupt a vital enzyme during pregnancy. These recent findings raise concerns about triclosan’s possible effects on fetal growth and development. This study is just one of an emerging body of science which supports triclosan as an endocrine disruptor and should be eliminated from consumer products. The study, which was published in the November print issue of the journal Environment International, examines the effect of triclosan on a placental enzyme, called estrogen sulfotransferase. Triclosan is known to inhibit sulfonation of phenolic xenobiotics and is structurally related to other known inhibitors of estrogen sulfotransferase, such as polychlorobiphenylols (PCBs). During pregnancy, the placenta is an important source of estrogen, which is needed for normal fetal development and successful parturition (childbirth), and estrogen sulfotransferase is thought to play an important role in regulation of estrogen availability. Estrogen is a key hormone during pregnancy and controls the way a baby develops many key organs like the brain. Triclosan was found to be a very potent inhibitor of both estradiol and estrone sulfonation. The […]

(Beyond Pesticides, November 9, 2010) In October, 11 groups representing chemical-intensive and biotech-based agricultural interests dropped out of the process to develop an American National Standards Institution (ANSI)-certified standard for sustainable agriculture, facilitated by the Leonardo Academy. The groups cited committee dominance “by environmental groups, certification consultants, agro-ecology and organic farming proponents” and an opposition to “modern agriculture” as their main reasons for resigning. The drop-outs include the American Farm Bureau Federation, American Frozen Food Institute, American Soybean Association, California Seed Association, CropLife America, Environmental Intelligence, Inc., Grocery Manufacturers Association, National Corn Growers Association, National Cotton Council of America, and United Fresh Produce Association. “These groups relentlessly pushed for molding the standard to validate industrial agriculture and high tech genetic manipulation,” says Jeff Moyer, Farm Director at the Rodale Institute and active member of the committee. “The model they propose confuses short-term profits for sustainability.” Responding to the resignation, a Leonardo Academy spokesperson said it, “recognizes their perspective but disagrees with their assessment.” The Academy believes their ANSI-approved standard development process provides the balance across interest categories needed for developing a Sustainable Agriculture Standard that will be widely implemented and successful in the marketplace. They state that the balance is […]

(Beyond Pesticides, October 25,2010) In an effort to control sea lice in farmed Atlantic salmon Health Canada has approved a request by the province of New Brunswick to use the pesticide Alphamax, whose active ingredient is deltamethrin. The high concentrations of salmon in aquaculture facilities has lead to major problems with sea lice, a type of parasitic crustacean that attaches to the fish. Health Canada has approved the use of the restricted pesticide deltamethrin through December of this year. While many salmon farmers are pleased, the decision by Canada’s federal agency has many local fishermen concerned about the effects the pesticide will have on fish and shellfish populations. “Basically we are shocked in a nutshell,” said Grand Manan Fishermen’s Association project manager Melanie Sonnenberg, adding, “Dsappointed doesn’t cover it.” The use of deltamethrin will be restricted to tarped cages or well boats, boats with large holds. Treatment would involve placing fish in the boats, bathing them in Alphamax and releasing them back into cages along with the treated water. The industry is ready to start using the treatment in the Bay of Fundy. Fish farmers have been challenged in controlling sea lice outbreaks this summer, particularly in the upper Passamaquoddy […]

(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 15, 2010) Reversing previous rulings that claimed that the toxic pesticide endosulfan was “safe,” the Australian Pesticides and Veterinary Medicines Authority (APVMA) announced its decision Tuesday to finally cancel the registration of the highly hazardous chemical. Recent assessments by the Australian government’s Department of Sustainability, Environment, Water, Population and Communities (DSEWPC) concluded that the prolonged use of endosulfan is likely to lead to adverse environmental effects via spray drift and run-off, and that these long-term risks could not be mitigated merely through use restrictions or label changes. Australia joins over 60 countries, including to the U.S. to have banned endosulfan. Endosulfan is an organochlorine insecticide that was first registered for use in the U.S. in the 1950s. It is an endocrine disruptor and exposure in male children may delay sexual maturity and interfere with sex hormone synthesis. Endosulfan also decreases semen quality, sperm count, spermatogonial cells, and sperm morphology, and contributes to other defects in male sex hormones. It is volatile, persistent, and has a high potential to bio-accumulate in aquatic and terrestrial organisms. Two-headed bass, for example, were found in the Noosa River resulting from surrounding pesticide drift from neighboring farms in Queensland, Australia. The pesticides, […]

(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 5, 2010) A new report by the Breast Cancer Fund, a national organization working to eliminate the environmental causes of breast cancer, presents a summary of the scientific data on the environmental causes of the disease. The report catalogs the growing evidence linking breast cancer to, among other factors: synthetic hormones in pharmaceuticals, cosmetics and meat; pesticides in food; solvents in household cleaning products; BPA in food containers; flame retardants in furniture; and radiation from medical treatments. The report also highlights impacts on the most vulnerable populations (including infants, pregnant women, African-American women and workers), and outlines the policy initiatives required to develop a national breast cancer prevention plan. The report, State of the Evidence: The Connection Between Breast Cancer and the Environment, is the sixth edition published by the Breast Cancer Fund. “With each new edition of the report, the growing scientific evidence compels us to act to prevent breast cancer,” said Jeanne Rizzo, RN, president of the Breast Cancer Fund. “This Breast Cancer Awareness Month, our message is clear: we must move beyond awareness to prevention.” The report states that a woman’s lifetime risk of breast cancer is 1 in 8””representing a dramatic increase since […]

(Beyond Pesticides, October 4, 2010) The Nebraska Farm Bureau and its champion, Sen. Ben Nelson (D-Neb), have recently expressed concern over a series of actions and proposals by the U.S. Environmental Protection Agency (EPA) concerning agriculture. Arguing that EPA is “overreaching” and is “out of control” by introducing new regulations that create “more paperwork” for its farmers, Sen. Nelson and advocates for chemical-intensive agriculture dismiss the EPA’s mandate to protect public and environmental health. Sen. Nelson recently brought up his concerns at a Senate hearing with EPA Administrator Lisa Jackson. Nebraska Farm Bureau is asking the state’s congressional delegation to work with their colleagues to halt EPA’s “non-stop regulatory assault on the state’s farmers and ranchers and their counterparts nationwide.” In addressing Administrator Jackson, Sen. Nelson said he agreed with a number of Nebraska producers who have told him that agriculture’s perspective is not being considered in EPA’s decision making, saying that, “EPA is overreaching with proposed regulations for carbon emissions, atrazine, dust standards, applying clean water rules on pesticide use and greenhouse gas reporting for livestock operations.” “Many in the agricultural community are rightly concerned about EPA’s actions because the agency’s rules typically are implemented in a top-down fashion […]

(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 29, 2010) A class action complaint claims Dial Corp. defrauds consumers about its Dial Complete soap by falsely claiming that it ‘kills 99.99% of germs,’ when in fact the product provides no benefit over washing with regular soap and water. The suit states that Dial Corp.’s claims are deceptive and misleading, designed solely to cause consumers to buy the product. Dial Complete contains triclosan, a registered pesticide, which is linked to numerous adverse effects including hormone disruption and water contamination. The suit wants Dial Corp. enjoined from continuing its deceptive advertising, disgorgement and damages for consumer fraud and deceptive business practices. The plaintiff, David Walls, in his suit states there are no reliable studies that show Dial Complete lives up to these claims. His complaint states: “Through its extensive and comprehensive nationwide marketing campaign, defendant claims that Dial Complete ‘kills 99.99% of germs’, is the ‘#1 Doctor Recommended’ brand of antibacterial liquid hand wash and ‘kills more germs than any other liquid hand soap’, when in actuality, it does not, a fact which Dial knew and purposely misrepresented and failed to disclose to consumers. To this day, Dial has taken no meaningful steps to clear up consumer […]

(Beyond Pesticides, September 28, 2010) A study published in the September 2010 issue of the journal Environmental Health Perspectives links low dose exposure to some persistent organic pollutants (POPs) to type 2 diabetes. The authors report that some POPs, including highly chlorinated PCBs, PBB153 and the organochlorine insecticides trans-nonachlor, oxychlordane and mirex, were associated with type 2 diabetes over an 18-year period, especially in obsese people. However, POPs did not show a traditional dose—response relationship with diabetes. Instead, POPs showed strong associations at relatively low exposures. The authors conclude that exposure to relatively low concentrations of certain POPs may play a role in the increased incidence of diabetes in the United States. The study, “Low Dose of Some Persistent Organic Pollutants Predicts Type 2 Diabetes: A Nested Case—Control Study,” examines participants who were diabetes free in 1987—1988. By 2005—2006, the 90 controls remained free of diabetes, whereas the 90 cases developed diabetes. Using serum collected in 1987—1988, the authors measured 8 organochlorine pesticides, 22 polychlorinated biphenyl congeners (PCBs), and 1 polybrominated biphenyl (PBB). They compare POP concentrations from Coronary Artery Risk Development in Young Adults (CARDIA) cohort and the National Health and Nutrition Examination Survey (NHANES) in 2003—2004. Persistent organic […]

(Beyond Pesticides, September 23, 2010) A study by U.S. Department of Agriculture (USDA) scientists and cooperators provides new details about how fertilizing soils with biosolids also introduces triclosan, an antibacterial agent in soaps and other cleaning supplies, into the environment. Results show that triclosan in biosolids is only slowly degraded and persists at low levels in the environment for long periods of time. Biosolids are illegal for use in organic agriculture. For this study, entitled “Fate of triclosan in agricultural soils after biosolid applications” and published in Chemosphere, Agricultural Research Service (ARS), chemist Clifford Rice, of the ARS Environmental Management and Byproduct Utilization Laboratory in Beltsville, Md., and his partners determined that triclosan levels in Class B biosolids from a Mid-Atlantic wastewater treatment plant averaged around 15.5 milligrams per kilogram. They collected surface soil samples from 26 farms in northern Virginia, mostly from pastures. Some fields had never been amended with biosolids and others had been amended with one to four applications of biosolids within the previous 9 months to 13 years. Most of the biosolid amendments came from the wastewater treatment plant in the study. Generally, conventional chemical-intensive farmers add “Class B” biosolids, also known as treated wastewater solids, […]

(Beyond Pesticides, September 22, 2010) Consumer food buying decisions have a direct effect on the health of the environment and those who grow and harvest food. Beyond Pesticides released its expanded Eating with a Conscience guide —now updated to include the 43 of the most commonly eaten fruits and vegetables, 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.” Eating with a Conscience 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 organic-certified food with the USDA organic seal as “the only system of food labeling that is subject to independent public review and oversight —ensuring consumers that toxic chemicals used to kill insects and unwanted plants (or weeds) in chemical-intensive food production are replaced by management practices focused […]

(Beyond Pesticides, September 16, 2010) Last week, the U.S. Department of Agriculture (USDA) announced that it will make available $6.37 million in federal funds for organic certification cost-share reimbursements for the fiscal year 2010. Recipients must receive initial certification or continuation of certification from a USDA accredited certifying agent and may be reimbursed for up to 75 percent of their organic certification costs, not to exceed $750 per year. According to a press release from the USDA Agricultural Marketing Service (AMS), these funds will be available through two cost-share programs that AMS manages: the Agricultural Management Assistance Program (AMA) and the National Organic Certification Cost-Share Program. Each program provides cost-share rebates to eligible organic producers and/or handlers receiving or renewing organic certification by a USDA accredited certifying agent through funds allocated to their respective state agriculture agencies. The states, in turn, review applications submitted by eligible producers and/or handlers and distribute funds accordingly. The 2008 Farm Bill, (the Food, Conservation and Energy Act of 2008 (7 U.S.C. 6523)), authorized $22 million in federal funds towards the National Organic Cost-Share Program to be distributed for five years following the passage of the bill. Coupled with the authorization provided by the Federal […]

(Beyond Pesticides, September 14, 2010) A new study confirms that indoor uses of consumer products, including pesticides, are the primary sources of indoor exposure to endocrine disruptors —chemicals that disrupt hormones and cause adverse developmental, disease, and reproductive problems— and shows that indoor levels are higher than those outdoors. Researchers from Silent Spring Institute, Columbia University, and the University of California-Berkeley measured airborne concentrations of endocrine disruptors in two California communities: Bolinas, a rural, affluent coastal town, and Richmond, a working-class city ringed by oil refineries. The study is published online in the September 1, 2010 issue of Environmental Science & Technology. The researchers analyzed 104 chemicals in 50 homes, including both chemicals that penetrate indoors from outdoor industrial and transportation sources and those from indoor use of consumer products and building materials. Similar levels of contamination were found inside homes in both communities, but outdoor levels were higher in Richmond. Among the chemicals found were pesticides, phthalates, parabens, PBDE flame retardants, and PCBs. A total of 38 pesticides are evaluated, including banned organochlorines (e.g., DDT, PCP), and current use products such as carbamates (e.g., propoxur), organophosphates (e.g., chlorpyrifos), and pyrethroids (cypermethrin). Thirteen pesticides were detected outdoors and sixteen pesticides […]

(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, September 7, 2010) A new study, entitled Fruit and Soil Quality of Organic and Conventional Strawberry Agroecosystems, shows organic strawberry farming results in higher quality fruit and healthier soils. A growing number of consumers are choosing organic foods, believing them to be healthier for themselves and the environment. While most environmentalists agree that organic agriculture is generally more sustainable than conventional, nutritionists who believe organic foods to be more nutritious are currently in the minority. A detailed comparison of organic and conventional strawberry farms is the first study to examine both the soil health and the nutrient content of the fruit produced. Researchers found organically produced strawberries, while slightly smaller than conventional have higher antioxidant activity, longer shelf life, and fared better in taste tests. Soils on the organic farms are also found to be healthier with higher organic matter concentration, and greater microbial biodiversity. California strawberries make up 25% of total production worldwide and 87% of U.S. production. Conventional strawberry production is notoriously dangerous for farm worker health and the environment. After phasing out the ozone depleting fumigant methyl bromide, the California government is currently considering approval of methyl iodide a chemical so carcinogenic it is actually […]

(Beyond Pesticides, September 3, 2010) New research shows that silver nanomaterials, which are used in a number of consumer products as antimicrobial agents, can interrupt important cell signaling within male reproductive sperm cells, causing them to stop growing. In previous studies, scientists reported how smaller-sized silver nanoparticles — in the 10 – 25 nanometer range — decrease the growth of male stem cells when they are exposed at concentrations greater than 10 micrograms per milliliter (μg/ml). This new study, on the other hand, is the first to identify how the silver nanoparticles stop the sperm stem cells from growing, with the biggest effects from the smallest-sized nanoparticles tested. Like many other studies on the effects of nanotechnology, this study raises important questions about the potential hazards to human health due to the prolific use of silver nanoparticles in the market. Researchers tested the effects of different sizes, concentrations and coatings of silver nanoparticles on cell growth of mouse sperm cells. They compared silver nanoparticles coated with either hydrocarbons — at 15 nm, 25 nm and 80 nm diameters — or sugars — at 10 nm, 25 – 30 nm and 80 nm diameter. Exposure to the smaller sized particles led […]

(Beyond Pesticides, September 2, 2010) Beyond Pesticides, along with dozens of environmental and public health groups from across the country, sent a letter to members of the U.S. Senate Committee on Agriculture, Nutrition, and Forestry, urging the withdrawal of S. 3735, a bill that would strip the Clean Water Act of protections from pesticides. The bill, introduced by Senators Blanche Lincoln (D-AR) and Saxby Chambliss (R-GA), the Senate Agricultural Committee’s Chair and Ranking Member, seeks to nullify regulations that require pesticide applicators apply for National Pollutant Discharge Elimination System (NPDES) permits under CWA before applying pesticides on or near surface waters. The groups say Congress should be supporting the Environmental Protection Agency (EPA) in fulfilling its task, rather than undermining laws that protect public health and the environment. Senators Lincoln and Chambliss argue that because pesticides are registered under the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) additional regulation is unnecessary and the legislation will reduce the burden on farmers, foresters and ranchers. In their August 30th letter, the groups say, “CWA complements and does not duplicate the pesticide registration reviews conducted by EPA under FIFRA, which sets a general national standard that does not take into account conditions and […]

(Beyond Pesticides, August 31, 2010) As the Environmental Protection Agency (EPA) continues its review of the popular herbicide atrazine, a new study shows that male rats prenatally exposed to low doses of the gender-bending chemical are more likely to develop prostate inflammation and to go through puberty later than non-exposed animals. The research adds to a growing body of literature on atrazine, an herbicide used in agriculture, especially in corn and sugar cane production, and on golf courses and residential lawns. Atrazine and its byproducts are known to be relatively persistent in the environment, potentially finding their way into water supplies. It has been linked to a myriad of health problems in humans including disruption of hormone activity, birth defects, and cancer. The research, “Effects of prenatal exposure to a low dose atrazine metabolite mixture on pubertal timing and prostate development of male Long-Evans rats,” which is available online and will be featured on the cover of Reproductive Toxicology (Vol. 30, # 4), found that the incidence of prostate inflammation went from 48 percent in the control group to 81 percent in the male offspring who were exposed to a mixture of atrazine and its breakdown products prenatally. The severity […]

(Beyond Pesticides, August 26, 2010) While proponents of organic farming often speak of nature’s balance in ways that sound almost spiritual, a new study provides additional scientific evidence to back-up this world view. Ecologists from the University of Michigan and the University of Toledo have uncovered a web of intricate interactions that buffers the farm against extreme outbreaks of pests and diseases, making highly toxic magic bullets unnecessary. This latest study adds to the list of benefits provided by organic agricultural methods, which include: healthier food, a less toxic work environment for farmers and farmworkers, a source of carbon sequestration (which combats climate change), higher yields in drought conditions, and a healthier environment. The 10-year study, “Ecological Complexity and Pest Control in Organic Coffee Production: Uncovering an Autonomous Ecosystem Service,” is published in the July/August issue of the journal BioScience. According to the study, the major players in the system ””several ant species, a handful of coffee pests, and the predators, parasites and diseases that affect the pests”” not only interact directly, but some species also exert subtle, indirect effects on others, effects that might have gone unnoticed if the system had not been studied in detail. A key species […]

(Beyond Pesticides, August 25, 2010) Exposure to pesticides while in the womb may increase the odds that a child will have attention deficit hyperactivity disorder (ADHD), according to researchers at the University of California-Berkeley School of Public Health. Maternal metabolites of organophosphate pesticides have previously been associated with neurobehavioral deficits in children. The California researchers are studying the impact of environmental exposures on the health of women and children who live in the Salinas Valley, an agricultural region with heavy pesticide use. They tested the urine of pregnant women for pesticide residue, and then tested the behavior of their children at ages 3 ½ and 5. The 5-year-olds who had been exposed to organophosphate pesticides while in the womb have more problems with attention and behavior than did children who were not exposed. Results are published online in the study entitled, “Organophosphate Pesticide Exposure and Attention in Young Mexican-American Children,” in the journal, Environmental Health and Perspectives. Previous studies have shown that exposure to some organophosphate compounds cause hyperactivity and cognitive deficits in animals. One study published in Pediatrics earlier this year found that exposure to organophosphates in developing children might have effects on neural systems and could contribute to […]