Recreational health advisory reissued for Ross Island Lagoon, ex - KPTV - FOX 12

Recreational health advisory reissued for Ross Island Lagoon, extended to Cathedral Park

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A recreational use health advisory has been reissued for the Ross Island Lagoon and extended to Cathedral Park in north Portland, Oregon Health Authority says.

The health advisory was reissued for the Ross Island Lagoon and extended north Friday based on scum that authorities say is visible in the Willamette River.

Oregon Health Authority officials urge residents to use caution in areas of the Willamette River downstream from Ross Island Lagoon, including downtown and north to Cathedral Park.

OHA officials issued a recreational use health advisory at Ross Island Lagoon Aug. 3 due to a visible cyanobacteria bloom, which is harmful algae, in the water. The notice was lifted Aug. 7 after tests showed toxin levels below recreational advisory level, OHA said.

Oregon Department of Environmental Quality staff have collected new samples for toxin analysis and expect results back next week. They say the advisory sent out Friday is a precautionary measure.

OHA says people should avoid swimming and high-speed water activities, such as water skiing or power boating, in areas where blooms are identified.

Although toxins are not absorbed through the skin, people who have skin sensitives may experience a puffy red rash at the impacted area, OHA said.

Ross Island Lagoon is located about a mile south of downtown. The area of concern includes the downtown reach of the Willamette River.

For more information about the health advisory visit

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