Washington State, Environmentalists Warn California Over 6PPD Alternatives

Washington state regulators and environmentalists are warning the California Department of Toxic Substances Control (DTSC) to carefully review tire manufacturers’ potential replacement chemicals for the anti-cracking compound 6PPD, arguing that some of the alternatives could be equally toxic to human and aquatic health. “Both 6PPD and the related compound 7PPD are known to be reproductive toxicants, yet 7PPD is included as a potential alternative in preliminary [alternatives analysis (AA)] reports submitted to DTSC,” states Oct. 9 comments to DTSC from...