Untold numbers of hatchery fish may be dying from exposure to tire-contaminated runoff, according to a new study. When it was first identified in 2020, the deadly tire chemical 6PPD-quinone (6PPDQ) was seen mostly as a threat to adult coho salmon. Fish returning in the fall were found disoriented and gasping shortly after entering creeks … Continue reading Study finds juvenile coho salmon at risk from deadly tire chemical