Jan 15, 2025 · The EPA is planning to conduct the Biosolids Program’s next National Sewage Sludge Survey (NSSS) in collaboration with the Effluent Guidelines Program’s POTW Influent PFAS Study. This NSSS will focus on obtaining current national concentration data on …

Jan 14, 2025 · Several states have begun monitoring for PFAS in sewage sludge and published reports and data that are publicly available (e.g., Michigan, Maine, California, New Hampshire, Vermont, and Connecticut). The sewage sludge risk assessment provides an overview of PFOA and PFOS occurrence data from peer-reviewed literature and state reports in Section ...

WASHINGTON – Today, Jan. 14, the U.S. Environmental Protection Agency released a draft risk assessment, or scientific evaluation of the potential human health risks associated with the presence of toxic per- and polyfluoroalkyl substances (PFAS) chemicals in biosolids, also known as sewage sludge.. The findings for the draft risk assessment show that …

Jan 14, 2025 · A growing body of research has shown that the sludge can be contaminated with manmade chemicals known as per- and polyfluoroalkyl substances, or PFAS, which are used widely in everyday items like ...

Aug 31, 2024 · Officials in Maine found PFAS contaminants in milk from animals that had been grazing on land treated with PFAS-laced sewage sludge fertilizer. Few states have taken action.

Mar 15, 2024 · This review presents recent research on the global distribution, origins, and worldwide regulations of PFAS in sludge (and biosolids). PFAS in sludge generally come from point (e.g., industrial factories, WWTPs, landfills, and incineration sites) and non-point (e.g., rainfall and runoff) sources.

Nov 10, 2022 · The ability for PFAS to further spread into the environment through sludge-containing products or land application of sludge has been demonstrated. Different types of PFAS were shown to transfer into plants through soil and sludge ( Ghisi et al., 2019 ).

Aug 31, 2024 · The E.P.A. is currently studying the risks posed by PFAS in sludge fertilizer (which the industry calls biosolids) to determine if new rules are necessary.

Available evidence suggests that PFAS and related chemicals in sewage sludge could jeopardize the safety of the commercial food supply and home gardens. We recommend home gardeners do not purchase biosolids-derived fertilizers for use on fruit and vegetable beds.

Jun 1, 2023 · Smouldering combustion can be used to treat PFAS effectively in high moisture content (MC) sewage sludge with complete removal of PFAS compounds 4C – 8C. The most effective treatment of PFAS-laden sewage sludge involved the use of calcium oxide (CaO) to sequester fluorine in the resulting ash.