stop dangerous pfas in drinking water - they are now everywhere - perfluoroalkyl and polyfluoroalkyl substances

pfass pfas pfoa pfos stop water pollution cancelled cancellation cancel arrest halt end finish drinking concept concepts pollutants polyfluoroalkyl contamination organofluorine chemicals environmental damage caution safety carcinogen chemical cancer toxic waterproof waterresistant compounds fluorinated substances risk dangerous fluorochemicals carcinogenic pollutant pure clean purified alertness faucet repellent warning environment biochemistry are now everywhere perfluoroalkyl synthetic