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

At last check, the Massachusetts Department of Public Health reported 18 beach closures due to excessive bacteria.

A number of Minnesota cities have reported blue-green algae blooms this summer, causing the temporary closing of some beaches ...

A team of researchers is tapping into the ocean’s vast body of free-floating environmental DNA to catch blooms before they ...

Winnipesaukee saw record cyanobacteria blooms, amid warmer temperatures and an increase in nutrients that feed the bacteria.

Officials have closed off swimming at beaches in at least six states due to high bacteria levels. Here's where those closures are.

Algal blooms can transform water sources into health hazards for livestock, so understanding how to identify, prevent and ...

Several popular swimming areas in Putnam County have been temporarily shut down due to harmful algae blooms and elevated ...

A new study led by Harvard biologists describes how some sea slugs consume algae and incorporate their photosynthetic ...

Health officials in Utah are warning residents not to swim in or drink the water at Anderson Cove in the Pineview Reservoir ...

The health advisory from Livingston County states that the public water supply is safe for drinking, but warns people and ...

The concerning sample was taken earlier this week from Racy Point in St. Johns County, west of Elkton and north of Hastings.