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 Control and the U.S. Tire Manufacturers Association.
As the study of the protective tire additive 6ppd—and its transformational product, 6ppd-quinone, found to be harmful to coho salmon in the Puget Sound area of northern California—continues, both entities have made their priorities clear.
The USTMA, which counts 12 of the largest tire manufacturers in the world as members, has stated it will work with the DTSC, a division of the California EPA, in studying a possible alternative to 6ppd, a critical antidegradant and antiozonant in preventing tire cracking and wear.
For the USTMA's part, consumer safety implications are clear and present.