Portland Metro OR

"Worse Than Anything We've Ever Seen": Toxic Algae in Ross Island Lagoon Troubles Scientists

Portland Mercury

Sep 3, 2026

"Worse Than Anything We've Ever Seen": Toxic Algae in Ross Island Lagoon Troubles Scientists

An unusually large outbreak of toxic algae in the Ross Island lagoon has spread to the Willamette River, troubling scientists who say the cyanobacteria bloom could have lasting eff…

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"Worse Than Anything We've Ever Seen": Toxic Algae in Ross Island Lagoon Troubles Scientists

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