According to analysis done by an ABC News data team, several states are at risk for toxic chemicals in their tap water.
The chemicals in question are known as PFAS, a term for per-and polyfluoroalkyl substances. These PFAS have been used in the production of many consumer products but have been linked to a number of health problems, such as sterility, multiple types of cancer, and weakening the body’s immune system. According to the ABC analysis, 43% of US counties have had at least one water source where PFAS was detected in the past 20 years.
The EPA is expected to soon issue strict standards for PFAS in drinking water. These standards would require municipalities to test water for PFAS levels and to install water filtration systems if levels are found to be unsatisfactory.