Question: How is a "forever chemical" different from any other chemical?<p>Google search:<p>> "PFAS are commonly referred to as “forever chemicals”"<p>Google search:<p>> PFAS = Per- and polyfluoroalkyl substances<p>Wikipedia entry, 'environmental concerns' section:<p>> In 2009, PFASs were listed as persistent organic pollutants (POPs) under the Stockholm Convention [1], due to their ubiquitous, persistent, bioaccumulative, and toxic nature.<p>> The nickname was derived by combining the two dominant attributes of this class of chemicals:<p>> 1) PFAS chemicals are characterized by a carbon-fluorine (C-F) backbone (the "F-C" in "Forever Chemicals"); and<p>> 2) the carbon fluorine bond is one of the strongest bonds in organic chemistry, which gives these chemicals an extremely long environmental half-life<p>Wikipedia entry, Fluorine, PFAS mention:<p>> Dwell time in the body varies greatly by species, with half-lives of days in rodents, and years in humans.<p>[1] <a href="https://en.wikipedia.org/wiki/Stockholm_Convention_on_Persistent_Organic_Pollutants" rel="nofollow">https://en.wikipedia.org/wiki/Stockholm_Convention_on_Persis...</a>