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

Meech Lake beach is closed due to a potentially harmful blue-green algae bloom, alongside a fire ban affecting Gatineau Park areas.

New Hampshire officials issued two warnings of potentially dangerous algae blooms along parts of Lake Winnipesaukee, the state’s largest lake. The New Hampshire Department of Environmental Services said on Thursday it detected high...

A blue-green algae bloom in Yellowknife Bay sparked worry for people's dogs. Here's what an aquatic quality scientist and a veterinarian have to say about it.

Sitka had an early bloom that led to high shellfish toxins in April, and there is currently a paralytic shellfish toxin advisory across Southeast for recreational and subsistence harvest.