Blue-green Algae in Illinois
1 confirmed blue-green algae report in Illinois, none currently active. About this disease: symptoms and prevention.
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Reports on record
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Currently active
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Last 7 days
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Last 30 days
Where in the state
1
Recent reports
Blue-green Algae · in another animal
Historical · Aug 10, 2026
Wheaton, DuPage County
Confirmed blue-green algae bloom at Herrick Lake, Herrick Lake Forest Preserve (DuPage Forest Preserve District advisory, Aug 10). Keep dogs out of the water
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