Toxic blue-green algae were found in record levels in Southampton’s Lake Agawam earlier this month, capping a summer during which a dozen South Fork lakes and ponds were closed due to high levels of the harmful bacteria.

There is unusual abundances of blue-green algae on West end of Fraser Lake.

BELCHERTOWN — A potentially harmful algal bloom in Lake Metacomet has officials recommending residents stay out of the water until the growth clears. “Basically, I’m advising people to avoid or minimize contact with the water,” said Erica Cross,...

Concerns about water safety for human and animal consumption for drinking and for recreation.

The beach at a state park in upstate New York has been closed because of a toxic algae bloom.

Unknown species of green algae in a lake near Kongiganak.

EUMETSAT satellite shows blue-green algae bloom covering Lake Okeechobee.

Low water, warm temperatures and our seasonal waterfowl population are factors we think are contributing to the unprecedented algae and weed growth in the lake at the the Alaska Native Health Campus.

Cities around Canada are urging swimmers to take caution as toxic blue-green algae warnings are in effect throughout the nation. This algae, if in contact with humans and pets, can be extremely harmful.

Algae blooms may produce toxins that can cause mild to severe health problems, says Cameron Deacoff, an environmental performance officer with the municipality.

The Martin County Sheriff’s Office believes a toxic algae bloom is to blame for killing one dog and making six others sick.

Mini algae blooms are a regular occurrence in the western basin of Lake Erie. They pop up early in the season and usually dissipate before...