Author: John Brock

DOE – 6PPD

6PPD stands for the chemical N-(1,3-dimethylbutyl)-N’-phenyl-p-phenylenediamine. It’s a chemical that prevents automotive tires from degrading (i.e., breaking down) and helps them last longer. When 6PPD is exposed to air, it reacts with ozone to create 6PPD-quinone (also known as 6PPDQ). 6PPDQ is lethal to coho salmon and can contaminate water systems.

https://ecology.wa.gov/waste-toxics/reducing-toxic-chemicals/addressing-priority-toxic-chemicals/6ppd

United States Analysis of the Regulatory Inception of Per- and Polyfluoroalkyl Substances(PFAS) in Drinking Water Policy among States and Review of Regulatory Efforts made by the Federal Environmental Protection Agency

By Amy Hagarty, Bachelor of Science
A Thesis Submitted in Partial
Fulfillment of the Requirements
for the Degree of
Master of Science
in the field of Environmental Science
Graduate School
Southern Illinois University Edwardsville
December, 2023

2024 PFAS in drinking waterDownload

Reader view: Can we stop the demise of Edmonds salmon streams?

By Joe Scordino
Posted: August 26, 2023

Joe Scordino
Joe Scordino

First it was Perrinville Creek and now it is Shell Creek that is losing its natural functions and salmon habitat — this time because of neglect and inaction by city administration in Edmonds’ Yost Park.

In the case of Perrinville Creek, the loss of salmon is due to both inaction to implement a watershed restoration plan (as promised by Mayor Nelson in a press release over two years ago), and an apparent illegal action the city took in January 2021 to totally block salmon access to Perrinville Creek.

Continue reading “Reader view: Can we stop the demise of Edmonds salmon streams?”