Advisory for Lake Nosbonsing, Ontario

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Lake Nosbonsing

Type: Cyanobacteria Bloom  -  Inactive

Issued: 7/27/2017

Details:

North Bay Parry Sound Health Unit advises that a bloom of toxin producing cyanobacteria, 
more commonly known as blue-green algae, has been detected in Lake Nosbonsing.

 The geographic location of the bloom is N 46.19003 W -79.22856.


 Residents and visitors near these areas need to take the following precautions:


If you use a private water system, do not use water from the lake for drinking, cooking and bathing. 

Boiling the water or using home water treatment devices will NOT destroy the toxins.

Avoid swimming or other water sport activities that could increase the risk of algae material
and toxins contacting your skin or being swallowed.

Some toxins produced by cyanobacteria accumulate in the tissues of fish and shellfish, 
particularly in the guts and other organs including the liver, kidney, etc. 

We do not know if the toxins accumulated in fish would be a concern. 

It depends on how much you eat and how severe the cyanobacteria bloom is. 

Be careful if you eat fish caught in water where cyanobacteria blooms occur.

 Do not eat the liver, kidneys and other organs of fish caught. 

Do not cut the organs when filleting.

These precautions are effective immediately. 
While the blue-green algae bloom may not show the presence of toxins, 
there is always the risk that toxins could be produced. 

These toxins may stay in the water for up to three weeks after the algae bloom is gone.