Chemicals: PFAS Hidden in Environmental Samples and Foams for Fire Fighting

| August 27, 2018

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There are hundreds of chemicals that can be classified as PFAS. Accredited laboratories generally determine approximately 30 of these specific chemicals. In many fire-fighting foams and other chemicals containing PFAS, most of these chemicals can be tied to more complex molecules, including polymer compounds. Routine laboratory analysis, for the most part, includes PFAS as carboxylic and sulphonic acids and may also include one or more sulfonamides [1,2]. Traditional PFAS analysis only reaches the major analytes and therefore may or may not greatly underestimate the presence of PFAS in the environment.

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