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Daily News Blog

Archive for the 'Pesticide Mixtures' Category


24
Apr

EPA Draft Herbicide Strategy Update Further Weakens Plan to Protect Endangered Species

(Beyond Pesticides, April 24, 2024) On April 16, 2024, the U.S. Environmental Protection Agency (EPA) posted an “update” to the Draft Herbicide Strategy Framework (Draft Herbicide Strategy Framework to Reduce Exposure of Federally Listed Endangered and Threatened Species and Designated Critical Habitats from the Use of Conventional Agricultural Herbicides) that was released last summer, weakening aspects of the agency’s efforts to “protect” endangered species from herbicide use. The update outlines three types of modifications to the Draft Strategy, including “simplifying” its approach, increasing growers’ “flexibility” when applying mitigation measures, and reducing the mitigation measures required in certain situations. By reducing the stringency of the Strategy, advocates are again questioning EPA’s commitment to fulfilling legal requirements under the Endangered Species Act (ESA) or protecting endangered species and their habitats in the midst of an unprecedented rate of global extinction. ESA is celebrated as one of the most far-reaching conservation laws globally, credited with preventing the extinction of 99 percent of those species the government targets for protection, according to the U.S. Fish and Wildlife Service (USFWS). ESA establishes a framework to categorize species as “endangered” or “threatened,” granting them specific protections. Under ESA, EPA is required to consult with relevant agencies […]

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17
Apr

“Forever Chemical” PFAS Drinking Water Rules Issued, Urgency to Shift from Petrochemicals Pesticides

(Beyond Pesticides, April 17, 2024) With headlines drawing public attention to the contamination of drinking water after years of federal government neglect, the U.S. Environmental Protection Agency (EPA) announced on April 10 new standards to reduce public exposure to PFAS, or per- and polyfluoroalkyl substances, commonly referred to as “forever chemicals” because of their persistence. EPA has finalized a National Primary Drinking Water Regulation (NPDWR) for six PFAS, including PFOA and PFOS, which EPA has recognized have no safe level of exposure, regulating new chemicals for the first time since the 1996 amendments to the Safe Drinking Water Act (SDWA). PFAS persistence and bioaccumulation in humans, wildlife, and the environment is due to the strength of a resulting fluorine–carbon atom bond. PFAS contamination of drinking water, surface and groundwater, waterways, soils, and the food supply—among other resources—is ubiquitous worldwide. PFAS is used in everyday products, including cookware, clothes, carpets, as an anti-sticking and anti-stain agent, in plastics, machinery, and as a pesticide. The action was welcomed by environmentalists and public health advocates as an important step but left many concerned that any level of exposure to these chemicals is unacceptable and critical of EPA’s ongoing failure to act despite years […]

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21
Mar

Hazardous Pesticide with Reproductive and Developmental Effects Enters U.S. Food Supply through Imported Food

(Beyond Pesticides, March 21, 2024) Alarming levels of a hazardous pesticide plant growth regulator linked to reproductive and developmental effects, chlormequat, is found in 90% of urine samples in people tested, raising concerns about exposure to a chemical that has never been registered for food use in the U.S. but whose residues are permitted on imported food. Published in the Journal of Exposure Science and Environmental Epidemiology in February 2024 and led by Environmental Working Group toxicologist Alexis Temkin, PhD, a pilot study finds widespread chlormequat exposure to a sampling of people from across the country. U.S. Environmental Protection Agency (EPA) regulations only permit the use of chlormequat on ornamental plants and not food crops grown in the U.S. As explained in the journal article, “In April 2018, the U.S. EPA published acceptable food tolerance levels for chlormequat chloride in imported oat, wheat, barley, and some animal products, which permitted the import of chlormequat into the U.S. food supply.” In 2020, EPA increased the allowable level of chlormequat in food. Then in April 2023, EPA proposed allowing the first-ever U.S. use of chlormequat on barley, oat, triticale (a hybrid of wheat and rye), and wheat. Existing regulatory standards explain the […]

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19
Dec

Groups Petition EPA to Remove from the Market the Weed Killer Glyphosate

(Beyond Pesticides, December 19, 2023) Last week, farmworker organizations and Beyond Pesticides, represented by the Center for Food Safety, filed a petition with the U.S. Environmental Protection Agency (EPA) urging that the weed killer glyphosate be removed from the market. The petition cites 200 studies, which represent a fraction of the independent scientific literature on the hazards of glyphosate and formulation ingredients of glyphosate products. This action follows previous litigation in 2022 in which a federal court of appeals struck down EPA’s human health assessment, finding that the agency wrongfully dismissed glyphosate’s cancer risk. The farmworker groups petitioning include Farmworker Association of Florida, OrganizaciĂłn en California de Lideres Campesinas, Alianza Nacional de Campesinas, and the Rural Coalition.   Meanwhile, verdicts against glyphosate’s manufacturer, Bayer, continue to pile up with a December jury verdict in Pennsylvania awarding $3.5 million and a November jury in Missouri ordering $1.56 billion to be paid to four plaintiffs. All link their cancer to use of the Roundup. Bayer has lost almost all of the cases filed against it for compensation and punitive damages associated with plaintiffs’ charge that its product (previously manufactured by Monsanto) caused them harm.  The petition summarizes its purpose and justification as […]

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26
Oct

Neurodevelopmental Disorders Studied as an Environmental Justice Concern

(Beyond Pesticides, October 26, 2023) The increasing prevalence of neurodevelopmental disorders (NDDs) in the United States has raised concerns about the impact of toxic exposures on child development. A comprehensive review by Devon Payne-Sturges, PhD, and colleagues in Environmental Health Perspectives analyzes the literature about disparities in NDDs in vulnerable and marginalized populations. The review investigates over 200 studies and reveals that fewer than half of these studies actually examine disparities, and most fail to provide a rationale for their assessments. The authors also offer practical suggestions for improving future research, including better methods for characterizing race and socioeconomic status and interpreting effect modification in environmental epidemiologic studies of health disparities. Associate Professor Devon Payne-Sturges, PhD, at the University of Maryland’s School of Public Health, one of the lead authors of the study and a former policy specialist at the U.S. Environmental Protection Agency (EPA) said, “FDA and EPA can act now—not later—to protect families from neurotoxic chemicals in consumer products and in the environment.” Tanya Khemet Taiwo, PhD, the other lead author and assistant professor at Bastyr University in Seattle said, “We need more stringent environmental standards to address pollution that is disproportionately impacting low-income communities and communities of […]

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11
Oct

Rachel Carson Conservation Park Faces Controversy Over Toxic Herbicide Spraying

(Beyond Pesticides, October 11, 2023) Rachel Carson Conservation Park, a 650-acre conservation area in Montgomery County, Maryland, named in honor of the renowned scientist and author Rachel Carson, is now at the center of a controversy surrounding the use of toxic herbicides. Ms. Carson played a pivotal role in raising awareness about the harmful ecosystem and human health effects of pesticides that led to the banning of DDT. Environmentalists and concerned citizens have raised alarm over the recent spraying of “invasive weeds” with Garlon 3A, a powerful herbicide, within the park’s boundaries. Concern about pesticide use in Montgomery County is complicated by competing jurisdictions and restrictions within the county, and highlights the stark difference between nontoxic organic practices and pesticide-dependent Integrated Pest Management. (See more below on Montgomery County land management policy for local parks.) According to the Montgomery County website: “Montgomery County Parks [Maryland-National Capital Park and Planning Commission or M-NCPPC] are a State agency. M-NCPPC operates under an integrated pest management plan (IPM). Montgomery Parks manages all playgrounds, community gardens and common lawn areas within local parks without the use of pesticides. In 2016, Montgomery Parks designated ten pesticide-free parks. In September 2019, the program expanded to 45 […]

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07
Jan

Pesticides and Road Salt: A Toxic Mixture for Aquatic Communities

(Beyond Pesticides, January 7, 2021) Insecticides and road salts adversely interact to alter aquatic ecosystems, reducing organism abundance and size, according to a study in the journal Environmental Pollution. Pesticide use is ubiquitous, and contamination in rivers and streams is historically commonplace, containing at least one or more different chemicals. Although road salts can prevent hazardous ice formation during the colder months, the study raises critical issues regarding the adverse interaction between road salts and pervasive environmental pollutants that threaten human, animal, and environmental health and safety. Authors of the study note, “Our results highlight the importance of multiple-stressor research under natural conditions. As human activities continue to imperil freshwater systems, it is vital to move beyond single-stressor experiments that exclude potentially interactive effects of chemical contaminants.” To assess the impact of road salts and insecticides on aquatic communities, researchers created a mesocosm (controlled outdoor experimental area) to examines the natural environment under controlled conditions. These communities include zooplankton, phytoplankton, periphyton, and leopard frog (Rana pipiens) tadpoles. Researchers performed a toxicity evaluation of six insecticides from three chemical classes (neonicotinoids: thiamethoxam, imidacloprid; organophosphates: chlorpyrifos, malathion; pyrethroids: cypermethrin, permethrin). Additionally, researchers note the potentially interactive effects of these insecticides with three concentrations of […]

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24
Sep

U.S. Geological Survey Finds Mixtures of Pesticides Are Widespread in U.S. Rivers and Streams

(Beyond Pesticides, September 24, 2020) A new report by the U.S. Geological Survey (USGS), National Water-Quality Assessment (NAWQA) Project, reveals the presence of pesticides is widespread in U.S. rivers and streams, with over almost 90 percent of water samples containing at least five or more different pesticides. Pesticide contamination in waterways is historically commonplace as a 1998 USGS analysis revealed pesticides are commonly found in all U.S. waterways, with at least one pesticide detectable. Thousands of tons of pesticides enter rivers and streams around the U.S. from agricultural and nonagricultural sources, which contaminate essential drinking water sources, such as surface water and groundwater. As the number of pesticides in waterways increases, it has detrimental impacts on aquatic ecosystem health, especially as some pesticides work synergistically with others to increase the severity of the effect. Reports like these are a significant tool in determining appropriate regulatory action to protect human, animal, and environmental health. USGS concludes, “Identification of primary contributors to toxicity could aid efforts to improve the quality of rivers and streams to support aquatic life.” Water is the most abundant and important chemical compound on earth, essential to survival and the main component of all living things. Less than three percent of that water […]

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