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Previously unknown group of PFAS compounds detected near Solvay manufacturing site in New Jersey

In a recent PFAS fireside chat, Dr. John Washington from the US EPA discussed the findings of a recent study published in Science that detected a novel group of per- and polyfluoroalkyl substances (PFAS)—called chloroperfluoropolyether carboxylates (ClPFPECAs)—in soil samples from New Jersey. The study, conducted by Dr. Washington and his colleagues, detected 10 unique ClPFPECAs in these samples, with the highest concentrations measured near the Solvay manufacturing plant in West Deptford Townhouse, New Jersey, and decreased amounts detected as the distance from the plant increased.

Identifying the unknown PFAS profile in firefighting foams/AFFF

According to a recent study from Harvard University, the US EPA, and NIEHS, traditional targeted analysis techniques poorly characterize the PFAS composition of contemporary PFAS-based firefighting foams, know as aqueous film-forming foams (AFFF).  Using the EPA 533 PFAS drinking water method for the analyte list, the researchers found that targeted mass spectrometry methods accounted for <1% of organic fluorine content.  This is important because it demonstrates that targeted analysis methods miss nearly all the PFAS compounds in modern AFFF mixtures, thus underestimating the risk to human health and the environment.

Previously unknown group of PFAS compounds detected near Solvay manufacturing site in New Jersey

Previously unknown group of PFAS compounds detected near Solvay manufacturing site in New Jersey

In a recent PFAS fireside chat, Dr. John Washington from the US EPA discussed the findings of a recent study published in Science that detected a novel group of per- and polyfluoroalkyl substances (PFAS)—called chloroperfluoropolyether carboxylates (ClPFPECAs)—in soil samples from New Jersey. The study, conducted by Dr. Washington and his colleagues, detected 10 unique ClPFPECAs in these samples, with the highest concentrations measured near the Solvay manufacturing plant in West Deptford Townhouse, New Jersey, and decreased amounts detected as the distance from the plant increased.

Identifying the unknown PFAS profile in firefighting foams/AFFF

Identifying the unknown PFAS profile in firefighting foams/AFFF

According to a recent study from Harvard University, the US EPA, and NIEHS, traditional targeted analysis techniques poorly characterize the PFAS composition of contemporary PFAS-based firefighting foams, know as aqueous film-forming foams (AFFF).  Using the EPA 533 PFAS drinking water method for the analyte list, the researchers found that targeted mass spectrometry methods accounted for <1% of organic fluorine content.  This is important because it demonstrates that targeted analysis methods miss nearly all the PFAS compounds in modern AFFF mixtures, thus underestimating the risk to human health and the environment.

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