19
Jul
(Beyond Pesticides, July 19, 2023) A study in Environment International (August issue) by the United States Geological Survey (USGS) finds that almost half of U.S. tap water is contaminated with PFAS chemicals, with measured concentrations in both private wells and public water sources. Authors of the study âestimate that at least one PFAS could be detected in about 45% of U.S. drinking-water samples.â Although there are more than 12,000 different types of PFAS, only 32 are detectable by USGS lab tests, so 45% is likely a low estimate. Per- and polyfluoroalkyl substances (PFAS) are a group of chemicals found in a variety of common household products such as nonstick pans and stain resistant carpeting, as well as pesticides and biosolids used as fertilizer. Long-chain PFAS, such as PFOA and PFOS, are more widely known because of their high toxicity and controversial use in the past. Today, long-chain PFAS are often replaced with short-chain PFAS, as the latter are not as bioaccumulative; however, short-chained PFAS also pose a significant threat because they remain highly persistent in the environment. Past Beyond Pesticidesâ articles have described the prevalence of PFAS in products as well as their negative health consequences, including cancer, decreased fertility, […]
Posted in Chemicals, contamination, Disease/Health Effects, Drinking Water, Environmental Protection Agency (EPA), Groundwater, PFAS, U.S. Geological Survey, Uncategorized, Water | 2 Comments »
29
Jun
(Beyond Pesticides, June 29, 2023) In the first major settlement amid an influx of PFAS litigation, industrial chemical giants DuPont, Chemours, and Corteva will pay $1.185 billion dollars to cities and towns across the U.S. to cover the cost of PFAS remediation and monitoring in public drinking water systems. The significance of this nationwide class-action settlement cannot be overstated, as citizens have battled powerful chemical corporations for decades with limited success. Dangerous toxicants have been indiscriminately discharged into the environment by chemical companies since the mid-1900s, and the PFAS litigation is important in the companyâs acceptance of responsibility for contamination. Of course, the damage to health and the environment is incalculable, given the pervasive environmental contamination and poisoning that it has caused, and additional lawsuits are pending, with more expected. Advocates maintain that this case exemplifies the inadequacies of regulatory controls that do a poor job of capturing the long-term effects of chemicals before being introduced into the market and a worse job of questioning the essentiality of toxic substances for which there are alternative practices and products. PFAS bring into sharp focus the legacy of chemical contamination and the impact on  future generationsâa problem well-documented with pesticides like DDT […]
Posted in 3M, Birth defects, Cancer, Chemicals, contamination, Corporations, Corteva, Disease/Health Effects, Drinking Water, DuPont, Groundwater, Litigation, PFAS, Water | No Comments »
15
Jun
(Beyond Pesticides, June 15, 2023) The Supreme Courtâs recent ruling in Sackett v. Environmental Protection Agency (EPA) on the Clean Water Actâs jurisdiction dramatically limits the EPAâs ability to protect critical wetland ecosystems. On May 25, in a 5-4 majority decision, the Supreme Court ruled that EPA has authority to protect only âwetlands with a continuous surface connection to bodies that are âwaters of the United Statesâ in their own right.â Wetlands must appear âindistinguishableâ from larger waterways at a surface-level perspective. Wetlands next to a large waterway are no longer protected if they are separated by a manmade or terrestrial barrier. Water flows underground from upstream to downstream sources and exits the confines of its customary boundaries during periods of flooding, so to declare waterways distinct based merely on a surface-level perspective defies scientific understanding of ecosystem health. Critical Nature of Wetland Ecology The conservation of wetland ecology is critical to the health of our environment. The United States Geological Survey (USGS) states, âWetlands are among the most productive habitats on earthâ given their role in flood resilience, improvement in water quality, and coastal erosion control. Wetlands are essential nursery grounds for many species of fish and oases for […]
Posted in Climate, contamination, Department of Justice, Drinking Water, Ecosystem Services, Environmental Protection Agency (EPA), Groundwater, Litigation, National Politics, U.S. Geological Survey, Water, Water Regulation | 2 Comments »
01
May
(Beyond Pesticides, May 1, 2023)Â The sheer number of different chemicals in the nationâs waterways and thus potential for toxic mixtures presents significant risks to health and the environment. However, the range of pesticides and the widespread contamination across the country would not be as fully uncovered without the work of the U.S. Geological Survey (USGS). Research conducted by USGS and the U.S. Environmental Protection Agency (EPA) on urban runoff across the country in 2019 found 215 of 438 sampled toxic compounds present in the water. The toxic soup in many U.S. waterways is unsustainable and threatens the foundation of many food chains. Imbalances in aquatic environments can ripple throughout the food web, creating trophic cascades that further exacerbate health and environmental damage. The data on water contamination has become one of the compelling reasons to abandon reliance on toxic chemicals in favor of organic land management to eliminate these threats. Tell Secretary of Interior Deb Haaland to expand USGS mapping of pesticide use and monitoring of waterways. Tell EPA Administrator Michael Regan that pesticides shown to contaminate rivers and streams must be banned. The USGS Water Resources Mission Area (WMA) researches pesticide use, trends in pesticide occurrence in streams, concentrations […]
Posted in Agriculture, Environmental Protection Agency (EPA), Groundwater, Oceans, Pesticide Regulation, Take Action, U.S. Geological Survey, Uncategorized, Water, Water Regulation | 8 Comments »
07
Oct
(Beyond Pesticides, October 7, 2021) The Arizona State Auditor General reports a lack of groundwater monitoring for pesticides and other contaminants by the Arizona Department of Environmental Quality (ADEQ). For over six years, the agency failed to monitor groundwater and soil for agricultural pesticide contamination. Furthermore, the agency did not implement key groundwater monitoring processes over four years, despite law requirements. This lack of waterway monitoring resulted in an increased number of impaired surface waters across the state.  Pesticide contamination in waterways is historically commonplace and widespread throughout U.S. rivers and streams, with at least five or more different pesticides present in 90 percent of water samples. Thousands of tons of pesticides enter waterways (e.g., rivers, streams, lakes, oceans) around the U.S. from agricultural and nonagricultural sources, contaminating essential drinking water sources, such as surface water and groundwater. Reports like these are essential in determining appropriate regulatory action to protect human, animal, and environmental health from chemical toxicant contamination. The report states, â[The] Department has not developed all required aquifer water quality standards, conducted key ongoing groundwater monitoring of the Stateâs aquifers, monitored for agricultural pesticides in groundwater and surrounding soil, or reduced the number of impaired surface waters in the State, limiting its […]
Posted in Arizona, Chemicals, contamination, Drinking Water, Groundwater, Water, Water Regulation | 2 Comments »
11
Mar
(Beyond Pesticides, March 11, 2021) A Portland State University (PSU) study finds that pesticides from the forestry industry threaten clams, mussels, oysters (bivalves) along the Oregon state coast. Bivalves are excellent indicator species, signaling environmental contamination through their sedimentary, filter-feeding diet. However, continuous pesticide inputsâfrom various forestry management regimesâinto watersheds along Oregonâs coastal zone endanger these species in downstream rivers and estuaries (river mouths). Although research demonstrates many forestry practices (e.g.., road building, planting, clearcutting, thinning) have cumulative effects on the ecosystem, there is a lack of studies addressing the overall impact of multiple chemical mixtures and application on watersheds and subsequent aquatic transport. Like agriculture, conventional forest management across the U.S. depends on the use of toxic pesticides to control pest populations. However, pesticide residues from application drift, runoff, and contamination continuously jeopardize the health and fitness of various non-target species, including humans. Marine ecosystem pollution is difficult to track and measure, and forestry pesticide regulations can invoke variations in water quality requirements through discrepancies in buffer zones and application concentrations. Therefore, studies like this can help guide future forest management practices to reduce the number of chemicals entering aquatic ecosystems. Researchers in the study note, âThese findings highlight the need to […]
Posted in Alternatives/Organics, Aquatic Organisms, Atrazine, contamination, Drinking Water, Forestry, Groundwater, Imazapyr, Oregon, Water, Wildlife/Endangered Sp. | No Comments »
15
Jan
(Beyond Pesticides, January 15, 2021)Â A study of groundwater that feeds public drinking water supply finds pesticides in 41% of supply wells (and a handful of freshwater springs). Two-thirds of that 41% contain pesticide compounds per se, and one-third contain pesticide degradates â compounds resulting from biotic (or abiotic) transformation of pesticides into other compounds. There is considerable ink (digital and actual) covering the health and environmental impacts of pesticide exposures, and reporting on the issue of pesticide migration into groundwater and waterways. Beyond Pesticides maintains that organic practices in land management, and especially in agriculture, are the solution to the contamination of our waterways and groundwater. Such practices, widely adopted, would have enormous salutary effects on human health and the health of ecosystems and their inhabitants. Published in Environmental Science & Technology, the study paper reports this research as the âfirst systematic assessment of raw [untreated] groundwater used for public drinking supply across the United States to include and provide human-health context for a large number of pesticide degradates.â Samples for the research were gathered across 1,204 sites â at or near the wellheads â in 23 principal aquifers whose groundwater is tapped for drinking water supply used by approximately […]
Posted in Drinking Water, Groundwater, Uncategorized, Water | No Comments »
