Story perspectives

Fishers Sue Tire Companies Over Salmon Pollution Crisis

2/2/2026

Summary

Story summary

A district judge in San Francisco is hearing a lawsuit by West Coast fishers against US tyre companies.
They allege that 6PPD-quinone from tyre additives pollutes waterways and harms coho salmon.
A 2020 study identified 6PPD-quinone as toxic to salmon.
Edward Kolodziej, a witness for the fishers, testified that road runoff could kill millions of salmon.
Defense witness Tiffany Thomas argued that the plaintiffs' findings are speculative and lab-based.

1 of 1

Story summary

A district judge in San Francisco is hearing a lawsuit by West Coast fishers against US tyre companies.
They allege that 6PPD-quinone from tyre additives pollutes waterways and harms coho salmon.
A 2020 study identified 6PPD-quinone as toxic to salmon.
Edward Kolodziej, a witness for the fishers, testified that road runoff could kill millions of salmon.
Defense witness Tiffany Thomas argued that the plaintiffs' findings are speculative and lab-based.