Some Iowa lakes are having issues with blue-green algae blooms. Mary Skopec oversees the D-N-R’s water monitoring program for state park beaches.
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Skopec says the algae releases dangerous toxins.
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The D-N-R says a “substantial” fish kill on Crystal Lake seven miles west of Forest City in Hancock County is linked to an algae bloom over the Fourth of July weekend. Three lakes — Black Hawk, Pine Lake, Twin Lake — have advisory signs posted after D-N-R testing showed issues with blue-green algae.
