The FDA has been working closely with the EPA after testing found that certain PFASs can form and leach from some fluorinated high-density polyethylene (HDPE) containers into the pesticide they are storing.
The issue arose in September 2020, when the nonprofit group Public Employees for Environmental Responsibility (PEER) discovered small amounts of PFASs leaching from fluorinated HDPE containers into the mosquito insecticide they were holding.
In March 2021, the EPA announced that the contamination most likely was the result of a chemical reaction during fluorination, prompting immediate leak source identification and treatment. The agency later said PFAS contamination in the containers could also constitute a TSCA violation.
