A long-term analysis shows that a major Oregon reservoir abruptly swapped one type of toxic algae for another midway through the 12-year study period, absent any obvious cause. The project provides a ...

PORTLAND, Ore. (KTVZ) — The Oregon Health Authority issued a recreational use health advisory Monday for Prineville Reservoir due to elevated microcystin, produced by the cyanotoxins in harmful algae ...

BOISE, Idaho — Fall is nearly here, but for those looking to celebrate the few days of Summer, they should avoid the CJ Strike Reservoir near Mountain Home, as it is under a health advisory. The ...

FLINT, MI – A public health advisory has been lifted for Flint Lake Park after test results show cyanobacteria levels there have fallen below the unsafe level. The Genesee County Health Department ...

PORTLAND — The Oregon Health Authority has issued a recreational use health advisory for Thief Valley Reservoir, in Union County east of North Powder, due a cyanobacteria bloom on the reservoir.

The following is a press release from the Humboldt County Department of Health and Human Services: A recent sampling event confirming dangerous levels of harmful algal toxins identified in Big Lagoon ...

GRAND JUNCTION, Colo. (KJCT) - The Blue Mesa Reservoir is under a water advisory. The National Park Service found blue and green algae in the reservoir containing cyanotoxins. The toxins were found at ...

IDAHO, USA — Idaho health officials issued a public advisory Monday warning residents to avoid contact with water at Brownlee and Hells Canyon reservoirs after detecting dangerous levels of ...

PAGE, Ariz. — Lake Powell's lower water levels aren't the only concern this Fourth of July weekend. The concentration of cyanotoxins was found to be at the "high end of safe exposure levels" in the ...

Harmful cyanotoxins, produced by algae blooms, were detected in Lake Powell at the mouth of Antelope Canyon. The National Park Service issued a water advisory but recreation areas remain open.

Cyanobacteria, or blue-green algae, is the most common, potentially harmful bacteria in fresh water. Avoid swimming or high-speed water activities where algae blooms are present. Common symptoms of ...