Perfluorooctanesulfonic acid, usually abbreviated to PFOS, was once a widely used surfactant in fabric protectors, firefighting foams, and photolithographic chemical mixtures. It was introduced in ...

but a recent study by chemical engineers found that the right-sized defects helped a molecular sieve soak up more perfluorooctanesulfonic acid (PFOS) in less time. Cleaning pollutants from water ...

and perfluorooctanesulfonic acid (PFOS). In a May 14 press release, the agency says that it will defend the limits for those two PFAS. But it also says it plans to roll back and revisit limits for ...

The City of Washougal has alerted residents about an increase in PFOS (perfluorooctanesulfonic acid) levels, commonly referred to as "forever chemicals," in two of its wells. These chemicals are ...

The study is the first to look at the associations between perfluorooctanoic acid and perfluorooctanesulfonic acid, and osteoarthritis, in a study population representative of the United States.

Washington Lake, the drinking water source for about 30,000 residents, was contaminated with perfluorooctanesulfonic acid, or PFOS. The city plans to sue under a provision of the federal Clean ...

They switch them back and forth.” There is also a review being conducted to fit the system with PFOS and PFOA (perfluorooctanesulfonic acid) filters. “The best-case scenario is that (tests ...