PFAS is a forever chemical that is commonly used in flame retardants and fire fighting foams. The toxic chemical is known to cause hormonal changes, decrease fertility, weaken immune systems, and increase risks of cancer. States across the country have worked to ban the use of the chemical that is now found in all major U.S. bodies of water. Companies are working to find suitable replacement for the chemical in fire fighting foams with concern of substituting one hazardous pollutant for another. Read More.