A yellow air quality warning is in effect for Sault Ste. Marie and St. Joseph Island on Monday, July 20, as wildfire smoke from northwestern Ontario drifts into the region, reducing visibility and creating moderate health risks for residents.
Environment Canada and the Province of Ontario issued the alert at 7:59 a.m., warning that smoke is causing poor air quality and reduced visibility. Conditions are expected to improve by this afternoon, but officials caution that air quality can change rapidly from hour to hour and over short distances.
The smoke originates from roughly 191 active wildfires in Ontario, with 73 burning out of control, primarily near Thunder Bay. Prevailing winds have carried the haze southeastward into the Sault Ste. Marie area.
Residents are advised to limit strenuous outdoor activities and keep windows closed to reduce smoke exposure indoors. Those most at risk include seniors aged 65 and older, pregnant people, infants, young children, and anyone with chronic health conditions like asthma or COPD. People who work outdoors should also take precautions and seek medical help if symptoms develop.
Mild symptoms from wildfire smoke include irritated eyes, nose, and throat, headaches, and a mild cough. More serious reactions, though less common, include wheezing, chest pain, and severe coughing.
According to a Health Canada research publication, smoky days are associated with a 10.52 per cent increase in respiratory-related emergency room visits and hospital admissions. In Sault Ste. Marie, about a quarter of the population is 65 or older, and 14 per cent are under 15, meaning many residents fall into higher-risk categories.
During past smoke events, the city has closed outdoor pools, splash pads, and the Downtown Plaza, and cancelled outdoor sports at city-operated fields. The Sault Area Hospital has previously declared a Code Grey, adjusting its air handlers and limiting visitors to maintain safe indoor air quality. Residents are encouraged to check on neighbours who may need help staying safe.
For updates, visit the Environment Canada website or call the Ontario Ministry of the Environment, Conservation and Parks at 416-314-6666.
