Month: January 2023

Saving Washington’s salmon from toxic tire dust

Department of Ecology
January 25, 2023

We are taking action to reduce 6PPD-quinone, a chemical that is deadly to coho salmon
Coho salmon returning to rivers and streams often die before they can spawn. Photo by Roger Tabor, US Fish and Wildlife

For over 20 years, scientists faced a toxic mystery: coho salmon returning to urban streams and rivers in the Puget Sound region were dying before they could lay their eggs. The culprit was unknown, but it seemed linked to  toxic chemicals running off our roads and highways. 

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