Toxic algae bloom spreading over western Lake Erie

The Microcystis cyanobacteria bloom is continuing to spread across the western basin of Lake Erie.

The toxic bloom starts near Monroe and Detroit Beach and then extends 20 miles to the east to southeast.

Recent satellite imagery indicates the bloom is present in Maumee Bay, extending north alongshore the Michigan coast to Brest Bay, east past Middle Sister Island and along the Ohio coast to the mouth of the Portage River.

Low concentrations of the bloom are also present within the Bass Islands and east past Kelleys Island to 10 miles outside Sandusky Bay.

Observed winds Tuesday and Wednesday reduced mixing and may have led to scum formation.

Measured toxin concentrations are detectable at all samples sites, but are still below the recreational threshold throughout most of the bloom extent.

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