On February 15, 2024, the U.S. Environmental Protection Agency (EPA) announced the release of a new methodology for detecting 32 per- and polyfluoroalkyl substances (PFAS) in high-density polyethylene (HDPE) containers. According to EPA, the method can accurately identify PFAS contamination at levels as low as 0.002 parts per billion (ppb) (or 2 parts per trillion (ppt)). EPA states that in releasing this method to the public, it “is enabling the industries that utilize HDPE containers, including container manufacturers, to test the containers before use, preventing PFAS contamination of pesticides and other products stored in HDPE plastic containers.” EPA notes that the method also has wide applicability for other industries, as it can be modified to test for PFAS in additional solid samples, such as fabric, packaging paper, and more. In its press release, EPA states that since learning about potential PFAS contamination in a small number of mosquitocide products in September 2020, it has taken a number of steps to address this issue. For more information, please read the full memorandum.

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