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It is commonly referred to as the main harmful PFAS chemical and PFOA is responsible for many of the negative health effects commonly associated with PFAS. Per- and polyfluoroalkyl substances are a group of synthetic organofluorine chemical compounds that have multiple fluorine atoms attached to an alkyl chain. Different organizations use ...
Fire-retardant foam, which contained PFAS compounds for decades, often found use at military bases and airstrips, causing costly pollution to nearby water sources. The U.S. Department of Defense ...
The thousands of similar carbon fluorine compounds that together constitute PFAS can take centuries to break down in the environment, where the chemicals easily move through soil and water ...
In 2024, a worldwide study of 45,000 groundwater samples found that 31% of samples contained levels of PFAS that were harmful to human health; these samples were taken from areas not near any obvious source of contamination. [41] Soil is also contaminated and the chemicals have been found in remote areas such as Antarctica. [42]
All of these methods promote the formation of hydroxyl radicals or other oxidizing agents that can oxidize PFAS and break its C−C bonds. [3] [4] However, the remediation of PFAS depends on the environmental medium where the these compounds reside. For example, the treatment of contaminated soil, biosolids and water is not the same, and risk ...
As it has with other scientific contributions, the Environmental Protection Agency will review the new report and remains “committed to addressing the risks from PFAS from all sources, including ...
PFAS are also found in paper mill residuals, digestates, composts, and soils. Given the ubiquity of PFAS, and the comparative background levels which may be found in wastewater, biosolids, and leachates, setting requirements near analytical detection limits on these sources may not provide a discernable benefit to protecting public health. [55]
Military bases topped the list of potential sources among drinking water systems that detected PFAS above the EPA’s new limits, but USA TODAY found airports closely followed with 50 systems.