"The FDA initiated this seafood survey based on our prior testing of foods from the general food supply obtained from the FDA’s Total Diet Study (TDS), which found relatively low levels of PFAS in a few seafood samples. The percentage of seafood samples with detectable PFAS, the types of PFAS detected, and the levels detected in multiple samples are higher in this survey than we have found in the overall TDS samples. This is not unexpected, as seafood may be at increased risk for PFAS contamination from the environment. Therefore, we tested more samples of specific types of seafood, and in this survey our researchers tested for certain types of PFAS that have been identified in the literature as being more prevalent in seafood. Additionally, other studies in the scientific literature on clams from China and Europe have reported a range of levels of PFOA, including elevated levels."
https://www.fda.gov/food/cfsan-constituent-updates/fda-shares-results-pfas-testing-seafood
FDA Shares Results on PFAS Testing in Seafood
Constituent Update
July 6, 2022