Scientists work to limit human exposure to ‘forever chemicals’
A recent study revealed elevated levels of potentially toxic chemicals in some species of fish in two Northern California rivers. The study specifically identified the Feather River and San Joaquin River, along with hundreds of other waterways in the United States. The chemicals are scientifically known as PFAS – poly-and perfluoroalkyl substances – and there are thousands of different types that are used in manufacturing. PFAS are commonly used as part of waterproof materials. They can also be found in food packaging, clothing and certain floor coatings, as well as firefighting foams.