The US Environmental Protection Agency is expanding its definition of per- and polyfluoroalkyl substances (PFAS)—at least for flagging contaminants for possible regulation in drinking water. In the ...
(Beyond Pesticides, July 30, 2025) The definition of per- and polyfluoroalkyl substances (PFAS), also known as “forever chemicals” due to their persistence, continues to be debated in regulatory ...
A hill does not cease to be part of the range because it has been quarried into invisibility; such destruction is evidence of ...
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