Just days after being reopened, Lake Mattoon is closed to swimming after city officials said there are still signs of a ...

Health officials in Massachusetts are spreading the word about harmful blooms of cyanobacteria, also known as blue-green ...

On a hot summer day, Sylvan Beach is typically packed with swimmers and boats. But Thursday afternoon was a much different ...

The Wyoming Department of Health has issued a bloom advisory for Sloans Lake in Cheyenne, warning residents about the ...

A cyanobacteria bloom has expanded in western Lake Erie, now covering an area of about 160 square miles along the Michigan ...

The Idaho Department of Health and Welfare issued a health advisory for Brownlee and Hells Canyon reservoirs Monday, urging ...

An algae bloom has been discovered in a section of the Charles River and people are urged not to swim, boat, or fish in the ...

A harmful algal bloom at Lake Mattoon has prompted officials to close the beach until further notice. The bloom, which can ...

MATTOON, Ill. (WAND) - Lake Mattoon is closed due to the presence of a harmful algal bloom that can release neurological ...

Health officials issued a public health advisory for Chuck Slough due to the presence of harmful cyanobacteria.

Waters in Plymouth and Brookline tested positive for toxic blue-green algae blooms that can make people and pets sick.

SANDPOINT, Idaho -- A public health advisory has been issued for the Chuck Slough in Sandpoint due to harmful algal blooms.