Baltimore’s water system contains PFAS chemicals at levels above new EPA health advisory

Baltimore’s water system, which serves 1.8 million homes and businesses in the city and Baltimore County, contains measurable levels of so-called “forever chemicals” that the EPA said last week pose health risks even at minute levels. The chemicals known as PFAS, used in firefighting foams and in consumer products for their nonstick and stain-resistant properties, were found in the system at a concentration of 4.93 parts per trillion, according to a city Department of Public Works report.