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Leeds, Grenville & Lanark District Health Unit
Leeds, Grenville & Lanark District Health Unit

Drinking Water - Radon


Radon and Drinking Water

What is Radon?

Radon is a colourless, odourless gas that is naturally radioactive.





Where is it found?

Radon is a naturally occurring gas that comes from rock or soil in areas where radium producing uranium is present in phosphate and granite deposits. Not all phosphate and granite deposits contain uranium. Studies show that less than 0.1% of all Canadian homes could have levels of radon high enough to cause concern.





Is it a Health Concern?


Well water supplies can become contaminated as ground water moves through radon contaminated soils. It is rarely found in surface water or municipal water as aeration dissipates the radon gas.

Radon gas can be inhaled into a person’s lungs when water is made into a mist, such as in showers or dishwashers. When this occurs it is believed that there is some risk that “alfa particles” emitted by the radon gas may damage lung tissue and cause lung cancer. This risk is increased if the person smokes cigarettes.





Can I Test My Water For Radon?


Water itself cannot be tested for radon. However, private companies can test the air in your home for radon levels and potential exposure.





Can Radon Be Removed From Water?


Radon levels in water can be reduced by specially designed filters and aeration systems.


For more Information Contact a Public Health Inspector:


MAIN OFFICE
458 Laurier Blvd
Brockville, 
Ontario
K6V 7A3
613-345-5685
fax 613-345-2879
BRANCH OFFICE
25 Johnston Street,
Smiths Falls, 
Ontario
K7A 0A4
613-283-2740
fax 613-283-1679



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