Beach at Christie Lake closed due to presence of blue-green algae

The beach and swimming area at Christie Lake Conservation Area is now closed to swimmers and animals
due to the presence of blue-green algae.

This naturally occurring organism can produce toxins known as microcystins, which pose a health risk to
humans and animals.

Health Advisory
Exposure to blue-green algae can occur through skin contact or accidental ingestion of contaminated
water. Symptoms may include skin irritation, rash, sore throat, red eyes, swollen lips, fever, nausea,
vomiting, and/or diarrhea. The most serious effects are caused by consuming the contaminated water.

Quick Facts

• Blue-green algae (cyanobacteria) typically forms in shallow, warm, slow-moving, or still waters.
• Algae thrive in water with elevated temperatures and high nutrient levels.
• As algae and aquatic vegetation die and decay, they can emit strong, unpleasant odours, especially
  near the shoreline.

To learn more about blue-green algae, visit the Ministry of the Environment, Conservation and Parks
website at: www.ontario.ca/environment-and-energy/blue-green-algae