(CBS DETROIT) – A harmful algae bloom has been discovered in a southeastern Michigan lake. Health officials say people and pets should stay out of the water until it clears up.
On August 30, the Michigan Department of Environment, Great Lakes, and Energy (EGLE) collected water samples from the northeast shore of Devils Lake in Manitou Beach in Lenawee County.
The tests confirmed the presence of Planktothrix, a cyanobacterium that can produce microcystin, which health officials say is a potent liver toxin and a potential carcinogen. This cyanobacterium appears reddish-brown in the lake and can fluctuate in toxin production. Additionally, dogs are highly susceptible to this cyanobacterium.
The Lenawee County Health Department is warning people to stay out of water where the algae bloom is visible and to make sure their pets aren’t exposed to it or drinking it.
“The size and location of a HAB can change rapidly, so visitors should avoid contact with water that appears discolored, such as green or blue-green, or that resembles spilled paint,” the county health department said. “Also, avoid foaming in the water, which can cause allergic reactions upon skin contact.”
If someone thinks they or their pet has been exposed to a harmful algal bloom, they should rinse off immediately and watch for signs of illness. People should seek medical attention if they or their pet develop symptoms.
Skin or water spray contact may result in symptoms such as rash, hives, skin blisters, watery eyes and nose, asthma-like symptoms, and throat irritation. Swallowing water where harmful algal blooms are present may cause flu-like symptoms, gastrointestinal upset, neurotoxic symptoms such as abdominal pain, vomiting, diarrhea, weakness, numbness, headache, dizziness, or difficulty breathing, and damage to the liver and kidneys.
Health officials encourage residents to take the following steps to prevent symptoms associated with these toxins:
- Avoid areas that resemble spilled paint or pea soup, floating foam, or have a green sheen.
- Avoid all water activities if you see harmful algae blooms present.
- Make sure that pets do not enter or drink the water.
- Be careful when eating fish from contaminated areas, as the fish may contain small amounts of toxins.
If you suspect a harmful algal bloom, avoid the water and contact EGLE at 1-800-662-9278 or AlgaeBloom@Michigan.gov.
