The USA has placed the first ever federal limits on toxic ‘forever chemicals’ in drinking water. The rule, finalised by the Biden administration on Wednesday 10 April, requires utilities to reduce the chemicals to the lowest level they can be reliably measured. Officials say this will reduce exposure for 100 million people and help prevent thousands of illnesses, including cancers. It is the first national drinking water limit on toxic PFAS, or perfluoroalkyl and polyfluoroalkyl substances, which are widespread and long lasting in the environment. Health advocates praised the Environmental Pro…