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Ecology Publications & Forms |
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Ecology Publications & Forms |
| Title | Assessing 6PPD and 6PPDQ from Waste Tires |
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Assessing 6PPD and 6PPDQ from Waste Tires (Number of pages: 130) (Publication Size: 5493KB)
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| Author(s) | Washington Department of Ecology | ||||
| Description | 6PPD is a chemical added to tires to increase their lifespan. 6PPD moves through the tire’s body and turns into 6PPD-quinone (6PPDQ) when it reacts with the ozone in the atmosphere. Fatally toxic to keystone salmonoids, both 6PPD and 6PPDQ enter the environment when tires wear on roads. These chemicals may also enter the environment through tire recycling and recycled tire derived products, though more research is needed to understand this mechanism of emission. Understanding the pathways of 6PPD and 6PPDQ pollution from tires will help us strategize how to mitigate their negative impacts on the environment, culture, and economy. The 2023-25 Supplemental Operating Budget (Senate Bill 5950, Section 302) directed Ecology to produce a report analyzing the contribution of waste tires to 6PPD-q pollution. Waste tires, as defined by RCW 70A.205.440(3), means tires that are no longer suitable for their original purpose because of wear, damage, or defect. This report was prepared to meet the requirements of the budget proviso. |
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The mission of the Department of Ecology is to protect, preserve, and enhance Washington’s environment. To help us meet that goal, please consider the environment before you print or request a copy.
ADA Accessibility The Department of Ecology is committed to providing people with disabilities access to information and services by meeting or exceeding the requirements of the Americans with Disabilities Act (ADA), Section 504 and 508 of the Rehabilitation Act, and Washington State Policy #188. Visit Ecology’s website for more information. |
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| Contact | Peter Lyon at 360-515-8348 or peter.lyon@ecy.wa.gov | ||||
| Keywords | 6PPD, tires, waste tires, toxics, toxics monitoring, toxic, tire, 6PPD-quinone, tire chemicals, 6PPD-q, 6PPDQ |
Copyright © Washington State Department of Ecology. See https://ecology.wa.gov/About-us/Accountability-transparency/Our-website/Copyright-information.
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