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Phys Org

Phys Org

Firefighting foam contains more branched PFOA than anticipated

Phys Org
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Researchers from UNSW Sydney found branched perfluorooctanoic acid ( PFOA ) was more prevalent than expected in firefighting foam.

PFOA is classified as a human carcinogen by the International Agency for Research on Cancer .

Low traces of PFAS are believed to now be present in more than 99% of the global population and there are growing concerns about the level of contamination in water supplies.

The branch version of PFOA is formed from PFAS precursors via environmental conditions.

"It is essential to recognize that effective remediation of PFAS will necessitate treatment combinations, as it is improbable for any single technology to produce environmentally benign products," says Jun Sun .