The EPA’s Analytical Chemistry Laboratory at Fort Meade has tested a limited number of fluorinated and non-fluorinated HDPE (High-Density Polyethylene) containers for the presence of PFAS (Per- and Polyfluoroalkyl Substances). According to the United States Environmental Protection Agency, this effort is in support of the Agency’s investigation on the source(s) of PFAS found in a mosquito control pesticide product. This memorandum summarizes our findings and discusses the limitations of the results.
The EPA also tested a limited number of samples of a mosquito control pesticide product collected at different steps in the production and manufacturing of that product, the final results of which will be reported in a separate memorandum (after review by our Quality Assurance Officer (QAO) for compliance with the ISO-17025 guidelines). Preliminary results of this analysis are discussed briefly in this memorandum in terms of their overall trend.