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Almost 400 of these water systems – or about 11% of those with a full set of measurements – exceeded a PFAS limit multiple times, meaning they may need to take action to remove PFAS from the ...
Per- and polyfluoroalkyl substances (also PFAS [1],PFASs [2], and sometimes referred to as "forever chemicals" [3] [4]) are a group of synthetic organofluorine chemical compounds that have multiple fluorine atoms attached to an alkyl chain; there are 7 million such chemicals according to PubChem. [5]
Used since the 1950s to make consumer products nonstick, oil- and water-repellent and resistant to temperature change, PFAS chemicals have been linked to serious health problems, including cancer ...
Remediation of per- and polyfluoroalkyl substances refers to the destruction or removal of per- and polyfluoroalkyl substances (PFASs) from the environment. PFASs are a group of synthetic organofluorine compounds, used in diverse products such as non-stick cookware and firefighting foams, that have attracted great concern as persistent organic pollutants.
Collectively, the EPA estimates it will cost $1.5 billion per year for America’s 66,000 public drinking water systems to monitor their water for PFAS, inform customers of the results and find ...
A 2018 report to Congress indicated that "at least 126 drinking water systems on or near military bases" were contaminated with PFAS compounds. [8] [9] A 2016 study found unsafe [10] levels of fluorosurfactants in 194 out of 4,864 water supplies in 33 U.S. states. Covering two-thirds of drinking water supplies in the United States, the study ...
Under the new rule, water providers must ensure there are less than 4 parts per trillion (ppt) of PFOA and PFOS chemicals, two of the most common types of PFAS, in drinking water samples.
A new EU drinking water directive issued in 2020 adopted PFAS limit values. The limit values are 0.1 μg/L for the sum of 20 PFASs including PFHxS, and 0.5 μg/L for the sum of all PFASs. This directive is binding for all EU member nations. It is a minimum directive, and member states can elect to adopt stricter regulations. [19]