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Know the risk

In Canada, wildfires are common in forested and grassland regions from as early as March until September. They can cause extensive damage, put lives in danger, and smoke particles can travel over long distances, affecting air quality and visibility in regions far from the fires themselves.

Individuals living in wildfire-prone areas should stay informed about local air quality conditions and follow guidance from local authorities regarding evacuation orders, air quality alerts, and health precautions during wildfire events.

  • Air quality: Wildfire smoke can decrease air quality. The smoke can contain pollutants such as fine particulate matter, carbon monoxide, nitrogen oxides and volatile organic compounds.
  • Health effects: Short-term exposure to smoke can cause coughing, wheezing, shortness of breath, headache and irritation of the respiratory system. Long-term exposure may increase the risk of respiratory infections, bronchitis and asthma attacks.
  • Visibility: Smoke from wildfires can significantly reduce visibility, making it challenging to navigate roads, airports and other transportation systems.
  • Evacuation and displacement: In severe conditions, communities may need to be evacuated. This can lead to temporary displacement and impacts on public health, infrastructure and resources.

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