US EditionState Agencies Release Updated PFAS Advisories for Fish
State agencies said PFAS were detected in fish at 12 of 14 sampled locations and issued size-based eating limits for 21 waterbody advisories.
- Montana issued 21 updated fish advisories after detecting per- and polyfluoroalkyl substances in waterbodies across the state based on 2023 and 2024 sampling efforts.
- PFAS, often called "forever chemicals," are man-made substances that degrade extremely slowly and are associated with reproductive, hormonal, immune system damage, and certain cancers.
- Sampling detected PFAS in fish tissue at 12 of 14 locations sampled, with the state advising men to avoid Walleye larger than 18 inches from Bighorn Reservoir and women and children to avoid larger than 14 inches.
- Three agencies—the Montana Department of Fish, Wildlife and Parks, the Department of Health and Human Services, and the DEQ—issued the guidance, noting these are not regulatory standards but awareness tools.
- Multiple military installations in Montana are listed by DEQ as "PFAS sites of concern," reflecting a broader regional issue also affecting Washington, where firefighting foam near Seattle has caused environmental contamination.
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State agencies release updated PFAS advisories for fish
Montanans who consume fish from many of its waterways should take care when doing so, a combined statement from three state agencies says. The state released updated guidance because per- and polyfluoroalkyl substances (PFAS) have been found in fish across…
State agencies release updated PFAS advisories for fish - Seward Independent
A rainbow trout tagged by FWP as part of its study of fish declines in southwestern Montana rivers. (Image courtesy FWP)Montanans who consume fish from many of its waterways should take care when doing so, a combined statement from three state agencies says. The state released updated guidance because per- and polyfluoroalkyl substances (PFAS) have been found in fish across the state. Updated guidelines, including which areas to take particular …
New Study Shows Montana Fish Are Full of PFAS
Anglers in Montana now need to be extra careful about which fish they consume and how much. A new study from multiple state agencies showed that certain fish are high in PFAS, or so-called forever chemicals, which pose risks to human health. What Are PFAS? PFAS are a kind of manmade chemical. They became popular in the 1950s, and were used for everything from nonstick cookware to pesticides to waterproof jackets. To make PFAS, scientists replace…
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