Measurement of longer chain PFAS in rainfall, surface water, soil and the Antarctic

2022-09-21
The measurement and quantification of PFAS in the environment is critical to understanding their potential environmental and health effects. While there are already extensive studies on Trifluoroacetic acid (TFA) which is highly relevant to the use and emissions of some HFCs and HFOs, two recent papers have reported on the measurement of longer chain PFAS acids in rainfall, surface water, soil and the Antarctic. The longer chain PFAS acids studied are not relevant to the HFCs, HFOs and HCFOs used as refrigerants and foam blowing agents. In addition, TFA, which is a breakdown product of some HFCs and HFOs, occurs naturally in the oceans in large quantities and has different properties to the longer chain PFAS acids.
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