Credit: Bastian Slabbers/ Nurphoto/Getty

New laboratory tests confirm that drinking water in dozens of cities across the United States is contaminated with toxic chemicals known as per- and polyfluoroalkyl substances (PFAS) at levels exceeding what independent experts consider safe for human consumption. The findings suggest that previous studies have dramatically underestimated the number of consumers exposed to PFAS through drinking water and come as the Trump administration continues to gut environmental and clean water protections.

Over the past year, researchers collected tap water samples from 44 locations in 31 states and the District of Columbia ranging from large metropolitan areas to small towns. Water from every location tested positive for PFAS with the exception of Meridian, Mississippi, where drinking water is drawn from wells more than 700 feet deep, according to a study released by the Environmental Working Group (EWG) last week. Some of the highest levels of PFAS were found in major metropolitan areas, including Philadelphia, Miami, New Orleans and a northern New Jersey suburb of New York City.

The positive test results from 43 […]