alertness about dangerous pfas perfluoroalkyl and polyfluoroalkyl substances in drinking water

drinking water pfas pfass concept concepts pollutants pollution polyfluoroalkyl pfoa pfos contamination organofluorine chemicals attention environmental damage issues illness purity pure clean purified alertness surveillance faucet carcinogen repellent chemical danger warning cancer toxic waterproof impermeable waterresistant compounds fluorinated substances fluorine organic environment health risk dangerous fluorochemicals carcinogenic biochemistry pollutant chemistry about perfluoroalkyl image