Blue-green algae blooms are a natural seasonal phenomenon that may appear in lakes, rivers and ponds. Some species have the potential to produce toxins which may be harmful to people and animals. Toxins are released into the water when the algae cells are damaged or begin to decay. Direct contact with the toxin can cause skin irritation and if ingested in higher concentrations, may result in vomiting, nausea, diarrhea and abdominal pain.
The Porcupine Health Unit asks residents to monitor area waters and if an algae bloom is present, please take these precautions and report the bloom to the Ontario Ministry of the Environment, Conservation and Park's Spills Action Centre at 1-800-268-6060.
Watch this video: What causes blue-green algae blooms?
For more information, see the Government of Ontario Blue-green algae page.