Indoor Air

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Building Shutdown and Re-opening during the COVID-19 Pandemic

During the extended “new normal” of the COVID-19 pandemic, it may be necessary to periodically close public buildings and facilities, followed by re-opening when safe again. Periods of low or no…
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Carbon Monoxide in Long-Term Care Facilities

Carbon monoxide (CO) is an odourless, colourless, and non-irritating gas that is harmful to humans. As a by-product of incomplete combustion, CO is produced by fuel-burning appliances including…
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Growing Cannabis Safely at Home

As of 2018, it became legal for Canadians to grow up to 4 cannabis plants per household. Having cannabis plants in a home poses risks but there are ways to grow more safely. Children, pets, and even…
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Legionella

Legionella is an opportunistic premise plumbing pathogen (OPPP) that can cause illnesses including Pontiac fever and Legionnaires’ disease, a severe pneumonia named after an outbreak that resulted in…
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Mould

Topics: Indoor Air, Mould
Mould is a ubiquitous fungus in outdoor environments that inevitably makes its way indoors. The general population is commonly exposed to mould through inhalation, and less commonly through direct…
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Radon

Radon gas is a colourless, odourless, radioactive gas that is released during the decay of uranium in rocks and soils. Radon levels outdoors are generally low, but radon gas indoors poses more of a…
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Radon: Public Health and Cancer Prevention

In Canada, radon is the second leading cause of lung cancer but what is radon and what can public health do about it? Radon is a radioactive gas that occurs naturally when uranium and soils break…
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