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 ...

Boston health officials warned people and their pets to stay away from the Muddy River in Boston's Fenway neighborhood due to a toxic algae bloom in the water. They should avoid direct contact with ...

A cyanobacteria bloom is expanding in western Lake Erie, covering an area of about 160 square miles from the shoreline of Monroe County, Michigan, to the shoreline of Ottawa County, Ohio. The National ...

Plymouth is warning both people and their pets to stay out of six ponds due to cyanobacteria blooms, also known as blue-green algae, in the water. The town currently has six ponds that have tested ...

EASTHAMPTON — Stay out of Rubber Thread Pond. That’s the message from the Easthampton Health Department, which issued a health advisory for the body of water behind the city’s 50 Payson Ave. parking ...

MONTEREY — Officials are warning visitors to Lake Garfield to steer clear of blue-green algae blooms, which can pose a health risk to people and animals. Testing on June 3 revealed that the lake has ...

A toxic algae bloom continues to thrive in the Charles River less than a week before thousands of rowers arrive for the Head of the Charles River Regatta, a three-day world-renowned sailing ...

A toxic algae bloom has prompted Boston officials to close a portion of the Charles River to recreational activities. The closure affects the area from the Harvard Bridge to the river's mouth, ...

Cyanobacteria, or blue-green algae, is the most common, potentially harmful bacteria in fresh water. Avoid swimming or high-speed water activities where algae blooms are present. Common symptoms of ...

Florida's hot, wet, sunny, summer months are when toxic algae blooms are most prevalent. That's also when people want to enjoy water activities from swimming to boating to fishing. But toxins in the ...

While algae is naturally-occurring, certain conditions can turn it into a harmful algal bloom that can be fatal to humans and ...

WINDSOR, Conn. (WTNH) — Rainbow Reservoir on the Farmington River in Windsor is experiencing an active Cyanobacteria bloom, ...