Algae bloom spotted in Old Man’s Lake, health unit warns

The North Bay Parry Sound District Health Unit is advising caution after an algae bloom -- also known as blue-green algae -- was spotted in Old Man’s Lake through testing samples taken Sept. 11 by the Ministry of the Environment, Conservation and Parks. (File)

The North Bay Parry Sound District Health Unit is advising caution after an algae bloom -- also known as blue-green algae -- was spotted in Old Man’s Lake through testing samples taken Sept. 11 by the Ministry of the Environment, Conservation and Parks.

“While blue-green algae blooms may not always show the presence of toxins, there is always the risk that toxins could be produced,” the health unit said in a news release Tuesday.

Vomiting, skin irritation

“Toxins can stay in the water for up to three weeks after the algae bloom is gone, causing skin irritation and if swallowed, diarrhea and vomiting.”

Anyone using water from Old Man’s Lake may be affected depending on their closeness to the algae bloom, wind direction, water flow and other environmental conditions, the health unit said.

“Due to the many factors involved, it cannot be determined where and when there are toxins or when the water is safe to use for private water systems,” the release said.

“Individuals who live near where a bloom was detected or where a bloom is visible should exercise their judgment before using the water.”

Avoid swimming

To be safe, affected residents should avoid using the water for drinking, swimming, bathing or showering.

Keep children and pets away from the bloom. Using a private water system or boiling the water will not destroy the toxins. Private systems relying on lake water should use an alternate drinking water source, such as bottled water.

“Avoid swimming and other water sports when a bloom is present,” the release said.

“Do not allow pets or livestock to swim in or drink the water. If skin contact does occur, wash with soap and water, then rinse thoroughly with clean water to remove algae.”

For more information about harmful algae, click here or contact the health unit at 705-474-1400, ext. 5400.