(Beyond Pesticides, March 18, 2009) The U.S. Environmental Protection Agency (EPA) has released a new online database that collects information on more than 500,000 synthetic chemicals from over 200 public sources. The Aggregated Computational Toxicology Resource (ACToR) database provides access to hundreds of data sources in one place, enabling easy access for environmental researchers, scientific journalists and the public. However, more than half of these chemicals do not have any detailed testing data. ACToR, which is actually a collection of databases, was developed to support the ToxCast program of the EPA National Center for Computational Toxicology (NCCT). ToxCast was designed to develop faster methods to evaluate the potential toxicity for thousands of chemicals using computer modeling and advanced molecular biology techniques. More than 200 sources of publicly available data on environmental chemicals have been brought together on ACToR and made searchable by chemical name and other identifiers, and by chemical structure. Data includes chemical structure, physico-chemical values, in vitro assay data and in vivo toxicology data. Chemicals include, but are not limited to, high and medium production volume industrial chemicals, pesticides (active and inert ingredients), and potential ground and drinking water contaminants. Sources of information include EPA, U.S. Food and […]

(Beyond Pesticides, March 17, 2009) Earlier this month, European Union environment ministers overwhelmingly rejected a European Commission proposal to force Austria and Hungary to lift their bans on the controversial cultivation of varieties of genetically modified (GM) corn. Over 20 member states voted against the Commission proposal. Hungary can maintain its ban on Monsanto’s GM maize MON810, and Austria on MON810 and Bayer’s T25. “This is a victory for the environment, farmers and consumers, and a major embarrassment for the Commission. For the fourth time, EU governments have rejected a Commission proposal to lift national bans on GM crops. What part of ‘no’ does the Commission not understand?” said Marco Contiero, Greenpeace EU GMO policy director. Austrian and Hungarian scientific authorities have recently supplied new evidence supporting their national bans showing that MON810 maize – the only GMO currently cultivated in the EU – is likely to have harmful environmental effects. Helen Holder, European GMO campaign coordinator at Friends of the Earth Europe said, “The European Commission has once again failed to force countries to lift their national GMO bans. Today’s vote is a clear message that European countries will not be bullied into taking unsound decisions regarding their environment, […]

(Beyond Pesticides, March 16, 2009) Exposure to a mixture of the fungicide maneb and the herbicide paraquat significantly increases the risk of developing Parkinson’s disease, according to a new University of California, Berkeley study, “Parkinson’s Disease and Residential Exposure to Maneb and Paraquat from Agricultural Applications in the Central Valley of California.” Published in the American Journal of Epidemiology, the study findings show that exposure to both pesticides within 500 meters of an individual’s home increases the risk of developing Parkinson’s by 75 percent. For individuals 60 years of age or younger at the time of diagnosis, there is a more than four-fold increase in risk of the disease when exposed to a combination of maneb and paraquat and a more than doubling of risk when exposed to either maneb or paraquat alone. The Berkeley researchers used geographic information systems that analyzed data from California Pesticide Use Reports and land-use maps to calculate historical residential exposure to agricultural exposure to the two pesticides. From 1998 to 2007, the researchers enrolled 368 incident Parkinson’s disease cases and 341 population controls from California’s Central Valley and developed potential exposure estimates incurred between 1974 and 1999. Also published this month by some of […]

(Beyond Pesticides, March 9, 2009) In the waning days of the 2009 legislative session, the Virginia General Assembly unanimously passed a weakened school Integrated Pest Management (IPM) bill that creates a statewide, voluntary school pest management program. While the law will increase public awareness of the antiquated practice of routine pesticide applications at school facilities, it does not mandate a change in practices. The legislation provides information to school districts on IPM that “minimizes the use of pesticides and the risk to human health and the environment associated with pesticide applications.” Beyond Pesticides advocates pesticide use reduction and elimination strategies and only the use of “least-toxic” pesticides as a last resort. Experience shows that school pest management must emphasize pest prevention and management strategies that exclude pests from the school facility through habitat modification, entry way closures, structural repairs, sanitation practices, natural organic management of playing fields and landscapes, other non-chemical, mechanical and biological methods, and the use of the least-toxic pesticides only as a last resort. School is a place where children need a healthy body and a clear head in order to learn. Children are especially sensitive to pesticide exposures as they take in more pesticides relative to […]

(Beyond Pesticides, March 5, 2009) A new study published in the March 2009 issue of Environmental Health Perspectives finds that pesticide combinations cause more harm to endangered salmon than ndividual pesticide exposure. This means that single-pesticide risk assessments required by the Environmental Protection Agency (EPA) inadequately assess hazards. Mixtures of organophosphate and carbamate pesticides are commonly detected in freshwater habitats that support threatened and endangered species of Pacific salmon. According to the researchers from the National Oceanic and Atmospheric Administration (NOAA) Fisheries and Washington State University, these pesticides inhibit the activity of acetylcholinesterase (AChE) and thus have potential to interfere with behaviors that may be essential for salmon survival. The researchers measured brain AChE inhibition in juvenile coho salmon exposed to sublethal concentrations of the organophosphates diazinon, malathion, and chlorpyrifos, as well as the carbamates carbaryl and carbofuran. The pesticides were tested individually and in combination. They plotted AChE levels on a curve to determine whether the toxicologic responses to binary mixtures were additive, antagonistic (lesser than additive) effect, or synergistic (greater than additive). The authors observed addition and synergism, with a greater degree of synergism at higher exposure concentrations. Several combinations of organophosphates were lethal at concentrations that were […]

(Beyond Pesticides, March 4, 2009) The Ontario government is set to announce sweeping new regulations that will prohibit the use of 85 chemical substances, found in roughly 250 lawn and garden products, from use on neighborhood lawns. Once approved, products containing these chemicals would be barred from sale and use for cosmetic purposes. On November 7, 2008, the Ontario government released a proposed new regulation containing the specifics of the Cosmetic Pesticides Ban Act, passed last June. Then, Ontario joined Quebec in restricting the sale and cosmetic use of pesticides but environmental and public health advocates said then that the new law preempted local by-laws and actually weakens protections in some municipalities with stronger local protections. There are over 55 municipalities in Canada where the residential use, but not sale, of pesticides is banned. The prohibition of these 85 substances is the latest step in this Act. The proposal contains: ”¢ List of pesticides (ingredients in pesticide products) to be banned for cosmetic use ”¢ List of pesticide products to be banned for sale ”¢ List of domestic pesticide products to be restricted for sale. Restricted sale products include those with cosmetic and non-cosmetic uses (i.e., a product that’s allowed […]

(Beyond Pesticides, March 2, 2009) Pesticide exposure and genetic variability in the dopamine transporter (DAT), a protein that plays a central role in dopaminergic neurotransmission of the brain, interact to significantly increase the risk factor for Parkinson’s disease, according to a new study by University of California, Los Angeles (UCLA) researchers. The population based case-control study, “Dopamine Transporter Genetic Variants and Pesticides in Parkinson’s Disease,” builds on the existing body of evidence of animal data and epidemiological studies that link exposure to pesticides, including gene-pesticide interactions, to Parkinson’s disease. The UCLA researchers, looking at incident Parkinson’s disease cases in three rural counties in Central California, find DAT increases the risk of Parkinson’s when individuals have occupational or residential exposure to pesticides. This is the first epidemiologic study of Parkinson’s disease that relies on pesticide data that is from a record-based source versus recall-based data relying on individuals’ memory. The second most common neurodegenerative disease affecting more than one million people in the U.S., Parkinson’s disease occurs when nerve cells in the substantia nigra region of the brain are damaged or destroyed and can no longer produce dopamine, a nerve-signaling molecule that helps control muscle movement. The new UCLA study is […]

(Beyond Pesticides, February 26, 2009) On February 24, the U.S. Environmental Protection Agency settled with an Oakland, California, importer for $61,000 for allegedly selling and distributing illegal mothballs, a violation of federal pesticide laws. The importer is accused of distributing unregistered naphthalene mothballs from imported from Taiwan. Venquest Trading, imported unregistered naphthalene mothballs from Taiwan and distributed them to retailers in California and the Pacific Northwest on 241 separate occasions. EPA’s Pacific Northwest region first discovered the company’s violations during a marketplace initiative to uncover illegal pesticide products. The agency’s Pacific Southwest office later conducted an inspection and uncovered violations at Venquest’s Oakland warehouse. “Without proper labeling and registration, these illegal pesticides pose a serious threat to human health, particularly children’s health, who can mistake the mothballs for candy,” said Katherine Taylor, associate director of the EPA’s Communities and Ecosystems Division for the Pacific Southwest region. “Importing unregistered pesticides is a serious violation, as the registration process ensures we know what the pesticide contains, and that it is properly labeled with precautionary statements and directions for use.” EPA has fined more than a dozen companies over the last several years for selling illegally imported mothballs. Importers, dealers and retailers can […]

(Beyond Pesticides, February 24, 2009) NIEHS staff scientist Freya Kamel, Ph.D., Harvard School of Public Health professor Chensheng (Alex) Lu, Ph.D., and Wake Forest University’s Center for Worker Health director Thomas Arcury, Ph.D. will speak as Science and Health panelists at Bridge to an Organic Future: Opportunities for health and the environment, the 27th National Pesticide Forum, April 3-4 in Carrboro, NC. Freya Kamel, Ph.D. Freya Kamel’s research interests focus on environmental determinants of neurologic dysfunction and disease, in particular, neurodegenerative disease. Dr. Kamel and her colleagues at the National Institute for Environmental Health Sciences (NIEHS) of the National Institutes of Health (NIH) examined the relationship of farm work-related exposures to subclinical neurobehavioral deficits in farmworkers. Deficits in neurobehavioral performance reflecting cognitive and psychomotor function related to the duration of work experience were seen in former as well as current farmworkers, and decreased performance was related to chronic exposure even in the absence of a history of pesticide poisoning. Thus, long-term experience of farm work is associated with measurable deficits in cognitive and psychomotor function. Dr. Kamel participated in work on the Agricultural Health Study (AHS), a large cohort study of licensed pesticide applicators and their spouses in Iowa and […]

(Beyond Pesticides, February 23, 2009) Permethrin and lindane metabolites are found in children who use lice shampoos containing the insecticides, according to researchers affiliated with the Centers for Disease Control and Prevention. The study, “Pesticide exposure resulting from treatment of lice infestations in school-aged children in Georgia,” published in the February issue of the journal Environment International, is the first to measure children’s exposure to chemical lice treatments. The researchers collected baseline urine samples from 78 enrolled children between the ages of six to ten years of age. About one-third of those children were diagnosed with head lice and subsequently treated with at least one over-the-counter permethrin lice treatment, a prescription lindane treatment, or both. Within seven days of the insecticide application, urine samples were again collected. The permethrin exposed children had significantly higher urinary pryrethoid metabolite levels in their post-exposure urine samples. Lindane metabolites were also elevated in urine samples after treatment. Interestingly, the study states, “Exposed participants appeared to have higher pre-exposure metabolite levels — likely from multiple treatments before enrollment — than unexposed participants.” Pentachlorophenol, a metabolite of lindane, was significantly higher in the urine of those children who used a lice treatment regardless of whether it […]

(Beyond Pesticides, February 18, 2009) The Environmental Protection Agency (EPA) is accepting through February 23, 2009 public comments on a petition to cancel all registrations for the herbicide 2,4-D and to revoke all of its tolerances. The petition was filed by the Natural Resources Defense Council (NRDC) in November and published by EPA on December 24, 2008. As the most commonly used “home and garden” chemical, millions of U.S. households especially vulnerable children and pets, are exposed to this toxic chemical. Beyond Pesticides fully supports the cancellation of this dangerous pesticide which has been 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. The highly toxic chemical can be replaced by cost-competitive and effective management practices widely used in organic agriculture and lawn care. As long as 2,4-D remains on the market, the public will continue to be exposed to, and suffer the effects of this chemical whose health impacts have long been ignored by EPA. Public health and environmental advocates believe it is time that EPA put science and the health of the public and the environment first and ban […]

(Beyond Pesticides, February 17, 2009) A U.S. District Court Judge has denied a request for remediation in resolving an on-going lawsuit between the victims of the worst industrial disaster in human history in Bhopal, India and Union Carbide, the company responsible for the disaster, according to Reuters, after Union Carbide objected to the victims’ request for remediation. Dow Chemical bought Union Carbide in 2001 and with it, its liabilities for the chemical plant disaster involving the production of methyl isocyanate (MIC), used as an intermediate in the production of the insecticide carbaryl (Sevin). Yet Dow Chemical has refused to clean up the site, provide safe drinking water, compensate the victims, or disclose chemical information to physicians; claiming that the Indian government is responsible for the environmental cleanup. In 1984, Union Carbide was responsible for the 1984 gas leak in Bhopal, India. Forty tons of deadly gas was released. Seven thousand people died in the next few days and 15,000 have died since from illnesses related to the accident. Over 100,000 victims still suffer from illnesses because of this event. In a 1989 settlement, Union Carbide agreed to pay $470 million to victims. However, $330 million still has not been paid […]

(Beyond Pesticides, February 12, 2009) Genetically modified (GM) crops are benefiting biotech food giants instead of the world’s hungry population, which is projected to increase to 1.2 billion by the year 2025 due to the global food crisis, according to a report released yesterday by the Center for Food Safety and Friends of the Earth International. The report, “Who Benefits From GM Crops: Feeding the Biotech Giants Not the World’s Poor,” explains how biotech firms like Monsanto are exploiting the dramatic rise in world grain prices that are responsible for the global food crisis by sharply increasing the prices of GM seeds and chemicals they sell to farmers, even as hundreds of millions go hungry. The findings of the report support a comprehensive United Nations’ assessment of world agriculture in the International Assessment of Agricultural Knowledge, Science and Technology for Development (IAASTD), which in 2008 concluded that GM crops have little potential to alleviate poverty and hunger in the world. IAASTD experts recommended instead low-cost, low-input agroecological farming methods. “U.S. farmers are facing dramatic increases in the price of GM seeds and the chemicals used with them,” said Bill Freese, science policy analyst at the US-based Center for Food Safety […]

(Beyond Pesticides, February 11, 2009) Connecticut lawmakers are taking an interest in the much debated cause of a massive die-off of lobsters that has all but wiped out the state’s 40 million dollar industry, according to the Easton Courier. Fishermen and environmentalists blame the use of the insecticide malathion, a hazardous organophosphate, currently used in community mosquito eradication programs, however the state Department of Environmental Protection (DEP) argues that there is not enough scientific data to lead to the banning of the chemical. The huge die-off of lobsters began in 1999, days after towns in Fairfield County, Westchester County and Long Island, as well as New York City, sprayed malathion to kill mosquitoes carrying the West Nile virus. Also at that time, remnants of hurricane Floyd drenched the state and washed the pesticide into Long Island Sound. The DEP, however, says the storm caused many other factors that led to the mass die-off. However, the lobster population has yet to recover. State lawmakers find DEP’s position on malathion puzzling. Rep. Richard Roy (D-Milford), chair of the House Environment Committee, and Senate Assistant Majority Leader Bob Duff (D-Norwal) are questioning DEP about its efforts to restore the state’s lobster industry while […]

(Beyond Pesticides, February 9, 2009) The U.S. Environmental Protection Agency (EPA) is currently soliciting comments on Monsanto’s second application to extend its experimental use permit for soybeans genetically engineered (GE) with the soil bacterium Bacillus thuringiensis (Bt). This will be the new administration’s first test on how it handles the issues surrounding GE crops. Among a number of concerns regarding GE crops, crops engineered to contain Bt threaten the long-term efficacy of Bt, which is an approved insecticide in organic farming. Monsanto’s permit on these GE soybeans was first granted by EPA in September 2007 and then extended in April 2008. Under the permit, plantings are permitted through July 31, 2009. Monsanto is requesting to extend the experimental program until December 31, 2010 and amend it by conducting tests with up to 0.466 pounds of Bt Cry1Ac protein in soybeans on 1,362 acres, according to the February 4th Federal Register notice. The testing trials will take place in Arkansas, Illinois, Indiana, Kentucky, Maryland, Missouri, North Carolina, Puerto Rico, South Carolina, and Virginia. Following the review of the application and any comments and data received in response to this solicitation, EPA will decide whether to issue or deny the EUP request, […]

(Beyond Pesticides, February 4, 2009) A new test for triclosan, developed by researchers at the U.S. Department of Agriculture’s Agricultural Research Service (ARS), could help to expedite environmental monitoring of this widely used antibacterial chemical which has been found at high concentrations in rivers and other water resources. Triclosan is linked to a range of health and environmental effects, from skin irritation, bacterial resistance and endocrine disruption, to dioxin contamination and adverse impacts on fragile aquatic ecosystems. The new test called “magnetic particle enzyme immunoassay,” can detect triclosan at a concentration of 20 parts per trillion (ppt)-the equivalent of 1 ounce in 31 million tons. The research team at ARS evaluated the test by using it to detect triclosan and its derivative, methyl-triclosan, in river water, tap water and sewage samples from three municipal plants. They were able to detect triclosan below 20 ppt (the detection limit), indicating very low levels of triclosan in the collected samples. ARS chemist, Weilin L. Shelver, at the ARS Animal Metabolism-Agricultural Chemicals Research Unit in Fargo, N.D., developed the new triclosan test in collaboration with Jennifer Church, Lisa Kamp and Fernando Rubio, a research team at Abraxis, Inc., of Warminster, Pa. Ms. Shelver says […]

(Beyond Pesticides, January 30, 2009) In a report released last week, the Government Accountability Office (GAO) added the Environmental Protection Agency (EPA) to its list of agencies in most need of reform. EPA appears in GAO’s High Risk Series: An Update, alongside the newly added U.S. Financial Regulatory System and the Food and Drug Administration (FDA). Reasons for EPA’s addition include a lack of transparency and information needed to limit potential health risks caused by chemicals under review, echoing testimony given to the Senate Committee on Environment and Public Works last spring. “EPA does not have sufficient chemical assessment information to determine whether it should establish controls to limit public exposure to many chemicals that may pose substantial health risks,” the report states. “Actions are needed to streamline and increase the transparency of the Integrated Risk Information System (IRIS) and to enhance EPA’s ability under the Toxic Substances Control Act to obtain health and safety information from the chemical industry.” New EPA administrator Lisa Jackson responded to the report with a prepared statement. “It is clear that we are not doing an adequate job of assessing and managing the risks of chemicals in consumer products, the workplace, and the environment,” […]

(Beyond Pesticides, January 28, 2009) The U.S. Environmental Protection Agency’s (EPA) national sewage sludge survey identifies high concentrations of toxic contaminants with heavy metals, steroids and pharmaceuticals, including the antibacterials, triclocarban and triclosan. Despite the prevalence of these toxic chemicals in the environment and their potential adverse impacts to human health and the environment, EPA maintains that it is not appropriate to speculate on the significance of the results at this time. Under the Clean Water Act (CWA), Section 405(d) stipulates that EPA must identify and regulate toxic pollutants that may be present in biosolids (sewage sludge) at levels of concern for public health and the environment. The survey, “Targeted National Sewage Sludge Survey” (TNSSS), sampled 74 selected waste water treatment plants in 35 states during 2006 to 2007. The survey, like its three predecessors, is conducted to determine which chemicals are present in sewage sludge and develop national estimates of their concentrations in order to assess whether exposures may be occurring and whether concentrations found may be of concern. The agency conducted analysis of sewage sludge samples for 145 compounds, including four anions (nitrite/nitrate, fluoride, water-extractable phosphorus), 28 metals, four polycyclic aromatic hydrocarbons, two semi-volatiles, 11 flame retardants, 72 […]

(Beyond Pesticides, January 26, 2009) University of California at Irvine researchers have discovered that sulfuryl fluoride, an insecticide widely used to fumigate termite-infested homes and buildings, stays in the atmosphere at least 30-40 years and perhaps as long as 100 years and is about 4,000 times more efficient than carbon dioxide at trapping heat, though much less of it exists in the atmosphere. This raises concerns as levels have nearly doubled in just the last six years. Prior studies estimated its atmospheric lifetime at as low as five years, grossly underestimating the global warming potential. “Sulfuryl fluoride has a long enough lifetime in the atmosphere that we cannot just close our eyes,” said Mads Sulbaek Andersen, a postdoctoral researcher in the Rowland-Blake laboratory and lead author of the study. “The level in the atmosphere is rising fast, and it doesn’t seem to disappear very quickly.” Its climate impact in California each year equals that of carbon dioxide emitted from about one million vehicles. About 60 percent of the world’s sulfuryl fluoride use occurs in California. The insecticide is pumped into a tent that covers a termite-infested structure. When the tent is removed, the compound escapes into the atmosphere. Sulfuryl fluoride […]

(Beyond Pesticides, January 23, 2009) A study by researchers at the UC Davis M.I.N.D. Institute has found that the seven- to eight-fold increase in the number children born in California with autism since 1990, a trend which shows no sign of abating, cannot be explained by either changes in how the condition is diagnosed or counted, and that environmental factors must be looked at more closely. Published in the January 2009 issue of the journal Epidemiology, the study is entitled “The Rise in Autism and the Role of Age at Diagnosis.” Results from the study suggest that research should shift from genetics to the host of chemicals and infectious microbes in the environment that are likely at the root of changes in the neurodevelopment of California’s children, including pesticides and household chemicals. “It’s time to start looking for the environmental culprits responsible for the remarkable increase in the rate of autism in California,” said UC Davis M.I.N.D. Institute researcher Irva Hertz-Picciotto, PhD, a professor of environmental and occupational health and epidemiology and an internationally respected autism researcher. Dr. Hertz-Picciotto said that many researchers, state officials and advocacy organizations have viewed the rise in autism’s incidence in California with skepticism. The […]

(Beyond Pesticides, January 22, 2009) A new English study has found that chemicals found in rivers and waste waters could be linked to male infertility. These chemicals, known as anti-androgens, block the action of the male sex-hormone testosterone and could impact the development of male reproductive organs in humans. The study entitled, “Statistical Modeling Suggests That Anti-Androgens in Wastewater Treatment Works Effluents Are Contributing Causes of Widespread Sexual Disruption in Fish Living in English Rivers,” and published in the journal Environmental Health and Perspectives identifies a group of river pollutants that cause testosterone to stop working. These chemicals, released from wastewater treatment operations into rivers and other surface waters are responsible for the feminization of male fish and abnormalities in male reproductive organs. Previous studies have attributed these problems in male fish to estrogenic compounds also found in surface waters. However, this study is the first to identify anti-androgens with the feminization of male fish. It also indicates that male feminization may be the result of a rather more complicated interaction taking place between different classes of pollutants, resulting in an endocrine disrupting chemical cocktail. “We have identified a new group of chemicals in our study on fish, but we […]

(Beyond Pesticides, January 21, 2009) Without federal legislation mandating schools adopt safer pest management strategies, around 75% of U.S. schools continue to use hazardous pesticides. As a result, a diverse group of school pest management stakeholders have developed a new document, Pest Management Strategic Plan for IPM in Schools, that they hope will help reinvigorate the adoption of Integrated Pest Management (IPM) programs, aiming for full implementation in all U.S. schools by 2015. The school IPM PSMP document is an in-depth look at the current status of school IPM, specific pest management strategies for schools to use, and actions and timelines for a coordinated effort to getting all schools adopt an IPM program. The strategic plan hinges on garnering leaders in school administration, school health, parents, teachers, custodians, food service staff, state agricultural extension staff, regulators, architects, IPM professionals and other interested individuals to help increase awareness and generate a commitment to school IPM. A group of more than 30 professionals, including Beyond Pesticides staff, have been involved in the development process for the school IPM PSMP, in cooperation with the U.S. Department of Agriculture (USDA) IPM Program, the four USDA Regional IPM Centers, and the US Environmental Protection Agency […]

(Beyond Pesticides, January 16, 2009) The first comprehensive look at toxic contamination throughout the Columbia River Basin has been released by the U.S. Environmental Protection Agency. Issued today, the Columbia River Basin State of the River Report for Toxics compiles currently available data about four widespread contaminants in the Basin and identifies the risks they pose to people, fish, and wildlife. The four contaminants are: * Mercury * Dichlorodiphenyltrichloroethane (DDT) and its breakdown products * Polychlorinated biphenyls (PCBs) * Polybrominated diphenyl ether (PBDE) flame retardants. According to Elin Miller, EPA Regional Administrator in Seattle, a team of more than 20 federal and state agencies, Tribes, local governments and organizations teamed-up to draw this latest portrait of the toxic threats faced by the Columbia River Basin, which drains nearly 260,000 square miles across seven U.S. states and a Canadian province. “This is troubling news,” said EPA’s Miller. “Today’s Report shows that toxics are found throughout the Basin at levels that could harm people, fish, and wildlife. Federal, tribal, state, and local efforts have reduced levels of some toxics such as PCBs and DDTs, but in many areas, they continue to pose an unacceptable risk. Tackling this problem will require a coordinated […]