
Thick smoke from wildfires in the Northwest Territories and Saskatchewan covered Calgary on Tuesday. CBC
Calgary residents face a health warning as thick wildfire smoke drifts across the city and large parts of the province. Environment and Climate Change Canada (ECCC) issued an alert on Tuesday morning, urging people to limit outdoor activity. Officials warned that the smoky air could pose risks to everyone, regardless of age or health.
The advisory stressed that people should reschedule or cancel outdoor events. Sports, exercise, and strenuous activities could increase exposure to the polluted air.
Air quality at high-risk level
Early Tuesday, the Air Quality Health Index reached 10+, the highest risk category. By mid-morning, it improved slightly to 8 but remained dangerous. The smoke originated from wildfires burning in the Northwest Territories and Saskatchewan. ECCC confirmed the shifting winds carried the smoke south into Alberta.
The agency cautioned that people may experience eye irritation, coughing, headaches, or sore throats. More severe symptoms could include wheezing, chest pains, or heavy coughing.
How to stay safe indoors
Officials advised residents to keep doors and windows tightly closed. Limiting outside trips and using air filters indoors could also reduce health risks. Sensitive groups, including children, seniors, and people with lung or heart conditions, need to take extra care.
“During heavy smoke conditions, everyone’s health is at risk regardless of their age or health status,” the ECCC statement read.
Calgary’s smoke season this year
Despite the poor air quality this week, Calgary has seen fewer smoky days compared to past years. Meteorologist Christy Climenhaga noted that the city has recorded 52 hours of smoky conditions this season. That marks the lowest number since 2016.
Still, the alert shows how wildfire smoke can quickly affect health and daily routines. With fires continuing in neighbouring provinces, air quality may remain unstable in the weeks ahead.

