Exactly that was found to be responsible for mass killings of salmon in the Puget Sound, and the consequent deaths of orcas and other wildlife. A rubberizer ad

Exactly that was found to be responsible for mass killings of salmon in the Puget Sound, and the consequent deaths of orcas and other wildlife. A rubberizer additive put in tires was getting atomized and then washed off into the streams. It makes salmon swim in circles until they die. Does it do anything to people? We don't know.