State health officials will update the list of lakes weekly.

Algae is vital to a healthy marine system, and most of the hundreds of varieties in Alaska’s waters are beneficial or benign.

The algae bloom resembles spilled green and blue paint or appears streaky yellow, officials said.

Better understanding the potentially toxic components of a harmful algal bloom might prepare water managers to protect the ...

The Michigan Department of Environment, Great Lakes and Energy is asking residents to report suspected harmful algal blooms using a new online form.

Thursday, the Department of Health and Human Services lifted harmful algal bloom advisories in Humboldt County and recapped the year’s toxic growths — with eight recorded HAB incidents between late ...

LANSING, MI — Summer algae season is already underway. The state is asking for reports of suspicious scum, streaks or ...

DNR officials are telling Sleepy Hollow State Park visitors to avoid contact with lake water after discovering a "harmful" ...

On clear days in Hartbeespoort, South Africa, satellite images often reveal a reservoir with shades of deep blue interrupted by drifting patches of vivid green. These shifting features indicate algae ...

Sleepy Hollow State Park issued a no-contact advisory on Tuesday, closing access to beaches and waterways due to a "harmful" ...

The Head of the Charles Regatta, one of the premier rowing races in the world, will be held this weekend in Boston and Cambridge, Massachusetts. One concern ahead of the race appears to have been ...