What first seems like some type of unsettling waterborne disease is simply an algal bloom. Algal blooms occur when microalgal ...

At ETH Zurich, scientists from many different fields are working on something that seems straight out of science fiction.

AURORA, Colo. — Colorado Parks and Wildlife said on Saturday that they are advising people not to swim at Cherry Creek ...

"If our lake is in danger, then our livelihood is in danger," said a local business owner who is raising funds and awareness.

Blue-green algae can be found all over Minnesota. Here's some more info about why it forms and what to look for.

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

The National Park Service detected the presence of cyanotoxins in Antelope Canyon, in concentrations at the high end of safe ...

At least six states have issued closures or advisories for certain beaches and lakes that have tested positive for above-safe levels of fecal bacteria.

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

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