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The type of PFAS remediation technology selected is often a reflection of the PFAS contamination levels and the PFAS signature (i.e. the combination of short- and long-chain PFAS substances present) in conjunction with the site-specific water chemistry and cross contaminants present in the liquid stream.
March 2010 The Michigan Department of Environmental Quality (MDEQ) found PFAS contamination at the former Wurtsmith Air Force Base (WAFB) after sampling a former fire training area on the base. Finding a mean concentration of 5,099 ppt of PFOS and 1,309 ppt of PFOA in Clark's Marsh in Oscoda, Michigan nearby WAFB. [ 65 ]
A number of jurisdictions have guidelines or limits for the concentration of PFHxS in water, in diets, and in the environment. There are fewer regulations on PFHxS compared to PFOS and PFOA. This reflects the relative lack of epidemiological and toxicological information on the human health effects of exposure to PFHxS.
Aug. 30—Tears in a retention pond lining at Cannon Air Force Base near Clovis were discovered this month following a July leak of water contaminated with PFAS. Drinking water wells at the base ...
The Air Force pointed to a $25 million federal grant from the state to build a new PFAS pretreatment plant for the Tucson Airport Remediation Project, also known as TARP. The letter also ...
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.
Sep. 2—If you don't live near the former Pease Air Force Base on the Seacoast or the Saint-Gobain plastics plant in Merrimack, it's tempting to ignore the news headlines about PFAS contamination ...
Perfluorooctanesulfonic acid (PFOS) (conjugate base perfluorooctanesulfonate) is a chemical compound having an eight-carbon fluorocarbon chain and a sulfonic acid functional group, and thus it is a perfluorosulfonic acid and a perfluoroalkyl substance (PFAS).