In 2018, PFAS was again been in the news, after it emerged that it had been found in fire-fighting foams still used and stored at Nelson Aiport. But what exactly are PFAS?
PFAS are a large group of man-made chemical compounds that have both industrial and consumer uses. PFOS (Perfluoroocane sulfonate) and PFOA (perfluorooctanoic acid) are two comp