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Car tire chemicals are killing salmon and steelhead

Car tire chemicals are killing salmon and steelhead – Environmental Health News

A new study has found that the chemical 6PPD, added to tires to prevent degradation, is causing a “complete breakdown of the blood-brain barrier” in fish.  Meanwhile, the California Department of Toxic Substances Control is taking steps to designate it as a “priority product,” which would force companies to disclose their use of 6PPD and conduct analyses to find safer alternative chemicals.