A harmful algal bloom occurs in bodies of freshwater when Cyanobacteria, also called blue-green algae, produce toxins.

Water testing is underway for Lake Monroe and Lake George, and the Florida Department of Health is advising people to take precautions.

Blue-green algae typically grows during the warm summer months, but has been discovered following a recent spring heatwave.

As summer approaches, the Oregon Health Authority (OHA) is urging residents and visitors to be vigilant about potentially ...

The Florida Department of Health in Seminole County (DOH-Seminole) cautions the public about the presence of blue-green algae ...

Gerry Darby from Lough Neagh partnership says he is "not surprised" by the return of the blue-green algae Blue-green algae has been detected in Lough Neagh for the first time in 2025, the Northern ...

Blue-green algae, which can produce toxins ... through an online form or by calling 855-305-3903. People can report symptoms from an exposure to a harmful algal bloom or other aquatic toxin ...

SANFORD, Fla. — The Florida Department of Health in Seminole County (DOH-Seminole) cautions the public about the presence of blue-green algae in Lake Jesup. With water sample testing underway ...