Technical Luncheon on Emerging Contaminants 6PPD and 6PPD-q

February 21, 2024 • Inland Northwest • Views: 139

Join the A&WMA Inland Northwest Chapter on March 7, 2024 (11:30 AM – 1:00 PM) for a lunchtime presentation by the Washington Dept. of Ecology’s Tanya Williams on the emerging contaminants 6PPD and 6PPD-q at O’Donnell’s Pub (719 N. Monroe Street, Spokane, WA 99201).

6PPD is an antioxidant and antiozonant used in motor vehicle tires to prevent tire cracking and promote tire longevity. In 2020, Washington State University and University of Washington researchers discovered that 6PPD ozonation leads to the harmful breakdown product 6PPD-quinone (6PPD-q). This chemical has been identified as the second most toxic aquatic chemical ever measured and causes rapid mortality to species of cultural and environmental significance like the coho salmon. In her presentation, “6PPD & 6PPD-quinone: Understanding and Mitigating the Emerging Global Contaminants,” Tanya will provide background on 6PPD and 6PPD-quinone, review the environmental risks, and highlight what is being done to find a solution.

Tanya Williams serves as the Washington State Department of Ecology’s 6PPD Lead Agency Planner. She coordinates 6PPD and 6PPD-quinone strategic planning across the department, manages the 6PPD action plan, interfaces with state, federal and tribal governments, and is a lead for the Interstate Technology & Regulatory Council’s Tire Anti-Degradant (6PPD) Team. Prior to her role at Ecology, Tanya spent 20 years as an environmental scientist at federal, state, and local government departments. She specializes in the Clean Air Act, the National Environmental Policy Act, air dispersion modeling, health risk assessments, environmental management systems, environmental justice, and program development. Tanya has been a member of A&WMA for 2 years and is the outgoing Chair of the A&WMA’s Environmental Justice Inter-Committee Task Force.

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