Disposing of these persistent substances often requires high pressures and temperatures.
“The chemicals were originally designed by companies to be stable — that was a feature, but once they get into the environment, it’s a flaw,” says Shira Joudan, an environmental chemist at York University in Toronto, Canada.
Joudan, who wasn’t involved in the study, says she’s excited about the approach. “This is the first time I’ve seen a degradation mechanism where I thought, ‘this could actually make a difference.’” Computational analyses suggested that this class of PFASs falls apart two or three carbons at a time rather than one carbon at a time, as generally assumed. Understanding the mechanisms through which these pollutants break down could inform approaches to solve the forever-chemicals problem, Joudan says..
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