U.S. regulators say they will review the use of a chemical found in almost every tire after a petition from West Coast Native American tribes, including one in Northern California, that want it banned because it kills salmon as they return from the ocean to their natal streams to spawn. The Yurok tribe in Northern California and the Port Gamble S’Klallam and Puyallup tribes in Washington asked the Environmental Protection Agency to prohibit the rubber preservative 6PPD earlier this year, saying it kills fish — especially coho salmon — when rains wash it from roadways into rivers. Washington, Oregon, Vermont, Rhode Island and Connecticut also wrote the EPA, citing the chemical’s “unreasonable threat” to their waters and fisheries.

Related articles: 

• Yale E360: After salmon kills, EPA takes aim at toxic chemical issuing from tires
• California Trout – News release: Court upholds protections for Southern California steelhead
• Center for California Water Resources: Blog - Cognitive dissonance [noun] 1: the state of having inconsistent thoughts, beliefs, or attitudes 2: the state of California’s salmon management policy