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Focus on: Monitoring 6PPD-q in the environment

Publication number Date Published
23-03-017April 2023
VIEW NOW Focus on: Monitoring 6PPD-q in the environment (Number of pages: 2) (Publication Size: 646KB)

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Author(s) Mugdha Flores
Description In 2020, after decades of investigative work by a cross-disciplinary research consortium, scientists from University of Washington Tacoma, Washington State University Puyallup, and their collaborators, identified 6PPD-quinone, also known as 6PPD-q, as the chemical that causes pre-spawn mortality in coho salmon. The chemical comes from 6PPD (6 p-phenylenediamine), found in tires and recycled tire products, when tire dust is exposed to air. When rain falls on tires and roads, it washes tire dust including 6PPD-q into rivers, streams, and estuaries.

To support long-term solutions, researchers are developing assessment studies to understand when, where, and how 6PPD-q ends up in the environment.
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.

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Keywords 6PPD, tires, salmonids, salmon, 6PPD-quinone, tire chemicals, 6PPD-q
WEB PAGE Tire anti-degradant (6PPD) and 6PPD-quinone

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