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Great Lakes Today was created to highlight issues affecting the lakes. The main partners are WBFO (Buffalo), ideastream (Cleveland) and WXXI (Rochester).Browse more coverage here. Major funding for Great Lakes Today is provided by the Corporation for Public Broadcasting, a private corporation funded by the American People. Additional funding comes from the Northeast Ohio Regional Sewer District.

Mild Year for Lake Erie Algae Bloom

Western Lake Erie on September 20,2016 (photo: NASA)

By Elizabeth Miller

Western Lake Erie algae blooms were mild this year, especially when compared to previous years, the National Oceanic and Atmospheric Administration says in a new  .

That's good news, because the blooms can cause sickness in people and animals.

NOAA says that areas of scum were "fewer, less dense, and less toxic in 2016 than in either 2014 or 2015." 

The severity index of this year鈥檚 bloom was 3.2.  Last year鈥檚 severity index set a record at 10.5.  Previously, environmental advocates said a lack of rain limited agricultural runoff into the lake. 

NOAA's bi-weekly Harmful Algal Bloom forecasts ended Oct. 24, when there was no longer a risk for a cyanobacteria bloom in western Lake Erie. Toxins produced by Microcystis, the dominant cyanobacteria in Lake Erie, can cause headaches, nausea and skin irritation.

To report the size of the blooms, NOAA used its own research along with sampling results from universities and citizen programs.

The weekly bulletins started in 2009 and increased to twice weekly last summer.