Study shows impact of pollution on water quality of Clark Fork River
HELENA – Recent results from an ongoing water quality study on the Clark Fork River show that pollution is more prevalent than initially thought.
Preliminary results of the new water studies show the presence of toxic compounds, such as polychlorinated biphenyls (PCBs), dioxins and furans, which are compounds associated with industrial activities, including the paper industry, but are also from some natural sources like forest fires.
In 2023 biologists with Montana Fish, Wildlife & Parks sampled for toxins on the Clark Fork River from Silver Bow Creek, near Butte, to Cabinet Gorge Reservoir on the Idaho border, including samples from the Clark Fork’s major tributaries – the Flathead, Bitterroot and Blackfoot rivers.
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