On February 15, 2024, EPA released a new methodology that can detect 32 PFAS from the walls of plastic containers. Since learning about potential PFAS contamination in a mosquito pesticide in September 2020, EPA has determined that the PFAS contamination leached into the pesticide from fluorinated high-density polyethylene (HDPE) containers used to store and transport the pesticide, and has taken action against the company that manufactured those containers (Inhance Technologies LLC). As EPA points out on its website, under Section 6(a)(2) of the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), pesticide registrants may need to report within 30 days additional factual information obtained regarding previously unidentified PFAS contaminants and impurities in their pesticides. EPA’s press release can be found here, and more information on EPA’s efforts regarding PFAS in Pesticides and Other Packaging can be found here.