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Grassy Narrows: Decades of Mercury Poisoning Continue
15 Jul
Summary
- Mercury levels downstream were 130 times higher than upstream.
- Contaminated fish caused neurological damage for three generations.
- Local economy collapsed after the fishery closed due to pollution.

Northwestern Ontario's Grassy Narrows First Nation faces an ongoing environmental crisis as mercury contamination continues to poison their ancestral lands. Between 1962 and 1970, the Dryden Chemical Company discharged industrial mercury into the English-Wabigoon River system, impacting the community's vital connection to the water.
A critical 2017 scientific report revealed mercury levels downstream from the old plant were approximately 130 times higher than upstream. This significant discrepancy suggests a continuing source of contamination on the industrial property, rather than just a lingering legacy from fifty years prior.
The toxic legacy has had a devastating impact, with residents suffering from neurological symptoms akin to Minamata disease for three generations. The closure of the local fishery in the 1970s due to contamination led to severe economic decline, replacing self-sufficiency with welfare dependence.
Residents are advocating for environmental justice, which requires not only testing and compensation but also the full remediation of the river system. The ongoing contamination leaves the Grassy Narrows community at continued risk, highlighting the urgent need for governmental action to identify and permanently address the source.