The state has lowered the water contamination threshold for perfuorinated, or PFAS compounds. The manmade chemicals, once commonly used in a variety of products, from non-stick coatings to firefighting foams, are highly water soluble, and increasingly found in groundwater worldwide, heightening concerns about human ingestion of the chemicals linked to health problems. As KUAC’s Dan Bross reports, Alaska joins other states that have reduced the contamination threshold, in effort to better protect the public.