Concentration Analysis and Health Risk Assessment of Perfluorooctanoic Acid and Perfluorooctane Sulfonate in Drinking Water in Suzhou
In this study,highly representative water samples from eighteen water plants of eight water companies,fifteen secondary water supply sites and eleven terminal water sites in Suzhou were collected to analyze the concentration levels of perfluorooctanoic acid(PFOA)and perfluorooctane sulfonate(PFOS),and to evaluate the health risk of oral ingestion of PFOA and PFOS in drinking water in Suzhou according to the model recommended by the WS/T 777-2021.The results showed that the concentrations of PFOA and PFOS were lower than the limit values stipulated in the GB 5749-2022,and the non-carcinogenic risk values for both PFOA and PFOS exposure via drinking water were less than 1,and the non-carcinogenic risk were low.
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