The Municipality of Chatham-Kent issued an orange level air quality warning Wednesday as smoke from wildfires burning in northwestern Ontario drifts into the region, with poor conditions expected to persist through Friday.
Environment Canada, which rated the impact level high with high forecast confidence, said air quality is expected to deteriorate later in the day and warned that during heavy smoke conditions, everyone’s health is at risk regardless of age or health status. The agency advised residents to limit time outdoors and to reschedule or cancel outdoor sports, activities and events.
Municipal health officials said wildfire smoke can be harmful even at low concentrations, with people who have lung or heart disease, older adults, children, pregnant people and outdoor workers facing higher risk. Environment Canada noted that common symptoms may include eye, nose and throat irritation, headaches or a mild cough, while more serious but less common effects can include wheezing, chest pains or severe cough — and anyone experiencing what may be a medical emergency should seek immediate medical assistance.
Both the municipality and Environment Canada urged residents to keep doors and windows closed when comfortable indoor temperatures allow, and to use a high-quality air filter or a HEPA-filtered portable air cleaner in rooms where they spend the most time, while avoiding purifiers that produce ozone. Those without access to clean indoor air were encouraged to find relief at a public library, shopping mall, community centre or other cool, smoke-free location.
For anyone who must go outside, officials recommended limiting the time spent outdoors and wearing a well-fitted, NIOSH-certified N95 or equivalent respirator mask to reduce exposure to fine particles, while cautioning that such masks do not filter out the gases present in wildfire smoke and some health risk remains even with reduced exposure.
Residents were told to listen to their bodies and scale back or stop activities if symptoms develop, and to contact a health care provider if they or someone in their care experiences shortness of breath, wheezing, severe cough, dizziness or chest pain.
Officials also asked residents to check in on neighbours or others in their care who may be more vulnerable to the smoke, and acknowledged the toll poor air quality can take on mental health, noting it is normal to feel anxious or isolated during a smoke event and encouraging anyone experiencing stress, anxiety or depression to reach out to their mental health care provider.
Residents were advised to continue monitoring alerts and forecasts from Environment Canada, with further information available at airhealth.ca, airqualityontario.com and canada.ca/wildfire-smoke, or by contacting the Ontario Ministry of the Environment, Conservation and Parks at 416-314-6666. The warning was issued jointly by Environment Canada and the Province of Ontario.
