BANGOR DAILY NEWS • June 16, 2022
Pioneering Maine restrictions on “forever chemicals” could be tightened further after the federal government said that virtually any level of exposure in drinking water is unsafe, policymakers said on Thursday. The Environmental Protection Agency issued a nonbinding health advisory on Thursday for four of the most common per- and polyfluoroalkyl substances — known as PFAS — that would reduce drinking water standards from 70 parts per trillion to four parts per quadrillion, a level 17,500 times lower. Maine’s interim standard is 20 parts per trillion.