Heading to Lake Cascade this weekend for water fun? You may need to change your plans

Idaho News
By Rachel Roberts; Idaho Statesman Photo by Idaho DEQ. Harmful algae blooms can have negative impacts on humans, pets and environments Harmful algal blooms are blooms of species of algae that can have negative impacts on humans, marine and freshwater environments, and coastal economies. Public health officials are asking the public to steer clear of Lake Cascade this weekend. The Idaho Department of Health and Welfare cited possible cyanobacterial harmful algal blooms in the lake, according to a tweet from the department. Samples are being tested but won’t be available until Monday. “Until then, we recommend people and animals stay out of the water,” the tweet said. Among the largest bodies of water in the state, Lake Cascade is a popular summer recreation area because of its opportunities for fishing,…
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EPA to Issue PFAS Drinking Water Health Advisories Wednesday

Research
Bloomberg Law The EPA will issue four PFAS health advisories for drinking water on Wednesday, the agency’s top water official said. The agency will also propose a new lead and copper rule by the end of 2023, said Radhika Fox, assistant administrator for the Office of Water, speaking Monday at the American Water Works Association annual conference in San Antonio. The PFAS advisories will be based on the best available science regarding the safe lifetime exposure to per- and polyfluoroalkyl substances for “a range of populations,” Fox said. Fox said the advisories will include monitoring protocols for PFOA and PFOS—two of the most commonly studied PFAS—in drinking water. The EPA’s current health advisory for PFOA and PFOS in drinking water, issued in 2016, is 70 parts per trillion. An earlier…
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EPA Webinar – Assessing the Toxicity of PFAS Chemicals to Aquatic Organisms

Register Here For more information on this event, visit the U.S. EPA Water Research webpage. Among the many questions surrounding per- or polyfluoroalkyl substances (PFAS) are their potential effects on aquatic communities. While much of the initial research effort has focused on ecological effects of perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA), there is a much wider range of PFAS that can occur in the environment―both as a result of more recently developed compounds and the breakdown products of other PFAS. Effective management of PFAS in aquatic systems requires understanding of the potential effects of a more complete range of PFAS chemicals. EPA is working to explore the relationships between PFAS toxicity and chemical structure for several aquatic species to help identify and predict the toxicity of PFAS and PFAS…
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EPA Adds Four New PFAS to Toxic Release Inventory

National News, Research
By Joseph Zaleski and Samuel Boxerman; Sidley Energy Blog As part of its continued focus on per- and polyfluoroalkyl substances (PFAS) regulations, the U.S. Environmental Protection Agency (EPA) has added four PFAS substances to the Toxics Release Inventory (TRI) list, including PFBS (perfluorobutane sulfonic acid) and potassium perfluorobutane sulfonate as well as two compounds listed at by their chemical identifier numbers — CASRN 65104-45-2 and CASRN 203743-03-7. EPA’s decision to add these PFAS to the TRI requires facilities that manufacture, process, or otherwise use these PFAS chemicals to include them in annual reports made to EPA pursuant to the Emergency Planning and Community Right-to-Know Act starting this reporting year. The 2020 National Defense Authorization Act (NDAA) immediately added 172 PFAS chemicals to the TRI and required annual facility reporting. The NDAA also provided…
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