Swimmers beware: Five beaches in King County have high levels of bacteria, according to the local health department. One has toxic algae.

The Kansas Department of Health and Environment (KDHE) and the Kansas Department of Wildlife and Parks (KDWP) have issued blue-green algae advisories for Kansas lakes.

The state of Michigan is developing a new strategy to help fight harmful algae blooms in Lake Erie.

According to a health alert from the Florida Department of Health, harmful blue-green algae toxins have been detected in the St. Johns River near Racy Point. The alert follows a water sample ...

TOLEDO, OH — The annual harmful algae bloom in Lake Erie should be milder this summer than last, say forecasters who highlighted decreases in a type of key nutrient driving the icky phenomenon ...

MUNCIE, Ind. — The city of Muncie has temporarily closed the Prairie Creek Reservoir Beach due to elevated algae levels. The city reports that there are high levels of microcystins, which is a ...

Harmful Algae Blooms, Bacteria Close These Putnam County Beaches Several popular swimming areas in Putnam County have been temporarily shut down due to harmful algae blooms and elevated bacterial ...

Gregory J. Dick, University of Michigan Federal scientists released their annual forecast for Lake Erie’s harmful algal blooms on June 26, 2025, and they expect a mild to moderate season. However, ...

Lake Okeechobee in Martin County has toxic algae. Cyanobacteria, commonly called blue-green algae, was present on June 24. DOH issued a water advisory June 27 Toxic algae in a part of Lake ...

Potentially harmful algae blooms known as “Cyanobacteria” have been identified in Isabella Lake and the public is advised to avoid contact. Courtesy of Kern County ...

The West Tisbury and Chilmark Boards of Health issued a cyanobacteria bloom advisory for several regions of Tisbury Great Pond after samples taken Wednesday came back positive for the potentially ...