On a lake, it can look like pea soup, a green mat or blue or green paint. It might also look purplish or pink. No matter the color, it’s cyanobacteria, and it's toxic. While typically a late summer ...

Cyanobacteria, commonly called blue-green algae, contained the toxin microcystin at a level of 0.58 on June 24, according to the Florida Department of Health. That was three days before DOH ...

C-44 Canal: On May 21, DOH issued a health alert for cyanobacteria, but DEP was awaiting test results to determine whether it was toxic. Five water samples taken from June 2 to June 30 did not ...

Cyanobacteria, commonly called blue-green algae, contained the toxin microcystin at a level of 0.58 on June 24, according to the Florida Department of Health. That was three days before DOH ...

CONCORD, Mass. — Going into the Fourth of July weekend, over two dozen Massachusetts beaches are closed, most due to unsafe bacteria levels. According to the Massachusetts Interactive Beach ...

Editor’s note: AI contributed to the production of this story under the supervision of our editors. The Massachusetts Department of Public Health (MDPH) has closed over 20 beaches across the ...

Different from fecal bacteria, cyanobacteria are the most common cause of algae blooms in freshwater, such as lakes or rivers, according to the Centers for Disease Control and Prevention.