WASHINGTON—The tire manufacturing additive 6ppd, an antioxidant and antiozonant essential to passenger safety and harmful to coho salmon when transformed into 6pp-quinone, has been elevated in ...

EPA officials say a chemical used in tire production reacts with ozone pollution and can kill aquatic species when stormwater runoff washes it into waterways. Graphic courtesy of State of Washington ...

Separate are the notions of wildlife protection and driver safety, but finding a way to maintain both is of equal importance. Such is the dilemma for the California Department of Toxic Substances ...

SEATTLE, Wash. — Opposition to the use of the tire antidegradant 6ppd, which transforms during tire wear into a chemical that is fatal to several fish species in the Pacific Northwest, continues to ...

SAN FRANCISCO—Thirteen of the largest tire manufacturers in the world have filed a motion to dismiss a lawsuit filed last year by two fishery groups demanding an immediate halt to the use of 6ppd in ...