Coho Urban Runoff Mortality Syndrome: WSU Research Team Discovers How Tire Chemical 6PPD Kills Coho, Step To Finding Alternative

For years, scientists at Washington State University’s Puyallup Research & Extension Center have been working to untangle a mystery: Why do coho salmon in Puget Sound creeks seem to suffocate after rainstorms — rising to the surface, gaping, and swimming in circles before dying?

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