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Discovery of tire-related chemical that kills coho salmon sparks widespread response

Scientists, legislators and manufacturers are responding in various ways to the recent groundbreaking discovery of a deadly chemical derived from automobile tires, a chemical that can rapidly kill coho salmon swimming in urban streams. Researchers are trying to better describe the chemical signature and biological function of the newfound chemical, 6PPD-quinone, along with related compounds. …

Stormwater picks up contaminants from vehicles. Photo: Daniel Parks (CC BY-NC 2.0) https://www.flickr.com/photos/parksdh/7014755513

Could tire discovery go beyond impacts on coho?

Scientists have suspected for several years that chemicals from tire wear particles are to blame for the deaths of thousands of coho salmon that have returned to spawn in Puget Sound’s urban streams. Sometimes referred to as “pre-spawn mortality” or “urban runoff mortality syndrome,” these deaths typically occur in streams near roads, and scientists have …