Wildfire smoke blows into much of Manitoba, prompting air quality issues

Smoke can be harmful to everyone's health, even at low concentrations: Environment Canada

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A wildfire-related special air quality statement that covers most of Alberta and Saskatchewan has made its way into a large swath of Manitoba, Environment Canada and the province's department of health say.

Poor air quality and reduced visibility are expected at times in Manitoba's southeastern corner — including Winnipeg — a large portion of the Interlake region, as well as western and northeastern parts of the province, according to the special air quality statement.

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It says conditions can fluctuate over short distances and vary considerably from hour to hour. Wildfire smoke can be harmful to everyone's health, even at low concentrations, and affects people in different ways.

People with lung disease, such as asthma or heart disease, older adults, children, pregnant people and people who work outdoors are at higher risk of experiencing health effects caused by wildfire smoke, Environment Canada says.

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Manitobans are encouraged to keep hydrated, stay in places with cool, clean air, and to stop or reduce their activity levels if breathing becomes uncomfortable or feels unwell, according to the national weather agency.

winnipeg-wildfire-smoke-06132023/Prabhjot Singh Lotey/CBC

Manitobans are encouraged to keep hydrated, stay in places with cool, clean air, and to stop or reduce their activity levels if breathing becomes uncomfortable or feels unwell, Environment Canada says. (Prabhjot Singh Lotey/CBC)

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People in the affected areas should also keep windows closed if their home's temperature is comfortable enough for that and to use the highest rated MERV filter on their HVAC systems or a portable HEPA air cleaner to re-circulate air if possible.

Those spending time outdoors should use a well-fitted respirator, such as an N95 mask, to lessen exposure to small particles of smoke, which are associated with the largest health risk of smoke. The statement adds that high-quality respirators cannot prevent exposure to the gases in wildfire smoke.

In order to reduce indoor air pollution, the statement encourages Manitobans to avoid vaping or smoking cigarettes, burning candles or incense, using wood stoves or vacuums, and frying food. It also advises people to check in on others around them who are vulnerable to the effects of wildfire smoke.

Those who develop severe symptoms or need advice should contact a health-care provider or local health authority. Anyone who feels stressed, anxious or depressed can also reach out for help on Wellness Together Canada's website.

This article was originally published for CBC News.

Header image credit: Prabhjot Singh Lotey/CBC.

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