Connecting Lake Simcoe's Community

Blue-green algae has been confirmed in Cooks Bay in Lake Simcoe.

 

The Simcoe Muskoka District Health Unit says laboratory analysis has confirmed the presence of a bloom of blue-green algae impacting the northwest area of Cooks Bay Lake Simcoe (in the vicinity of 2nd Line), Innisfil.

Many species of blue-green algae (also called cyanobacteria) have the potential to produce toxins that
are harmful to the health of humans and animals when exposed in large amounts.

As a precautionary measure, the health unit urges residents and businesses not to drink water from this
lake where blue-green algae is visible and to take the following precautions:
- do not use the lake water for the preparation of infant formula
- do not allow pets or livestock to drink or swim in the water where an algae bloom is visible
- be cautious about eating fish caught in water where blue-green algae blooms occur
- do not use herbicides, copper sulphate or other algaecides that may break open algae cells and
release toxins into the water
- avoid water sport activities where an algae bloom is visible

Seek medical attention if symptoms such as skin, eye or throat irritation, allergic reactions or breathing
difficulties occur while in contact with the bloom. Anyone who comes into contact with blue-green algae
should wash with soap and water or rinse thoroughly with clean water. Swimming, bathing or showering
with water not visibly affected by a blue-green algae bloom is not expected to cause health effects.

The health unit and the Ministry of Environment, Conservation and Parks will continue to work together
to monitor the algal bloom and updates will be provided on our website www.smdhu.org.

For further information, call Your Health Connection Monday to Friday 8:30 a.m. to 4:30 p.m. at 705-
721-7520 or 1-877-721-7520. Links to general information and updates about blue-green algae are
available on the health unit website at www.simcoemuskokahealth.org.

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