Harmful Algae Bloom Alert Expands to Most of Willamette River Through Portland

Annual algae bloom forms on Willamette River. A bill to stop it died in the Oregon House

The thick, green layer of toxin-producing algae currently growing on the Willamette River south of downtown Portland is not just a public health issue but a reminder to Willie Levenson of “a total bureaucratic failure.” That’s for a couple of…

Harmful algae bloom alert expands to most of Willamette River through Portland

A state advisory warning of a harmful algal bloom expanded Wednesday to include much of the Willamette River running through Portland in what has become a common summer alert in the city.

Algal bloom in Ross Island Lagoon, Willamette River prompts recreational advisory

Health officials advised people not to swim in the area and to avoid high-speed water activities like water skiing or power boating.

Oregon Health Authority issues advisory for parts of Willamette River, Ross Island Lagoon

There is a health advisory in place for Ross Island Lagoon and for the Willamette River south of the lagoon downriver to Ross Island Bridge.

Ross Island Lagoon, Willamette River tested for cyanobacteria algae bloom

Annual algae bloom forms on Willamette River — a bill to stop it died in the Oregon House

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