Canada: Warnings for poor air quality due to smoke from wildfires issued across western regions as of May 15

Authorities have issued warnings and advisories concerning poor air quality due to wildfire smoke across parts of western Canada as of May 15. Multiple fires are burning across the region and have led to evacuations near Fort Nelson in northeastern British Columbia, near Fort McMurray in northeastern Alberta, and near Flin Flon in western Manitoba. Smoke from the fires is causing a deterioration in air quality and visibility across the affected area.

As of early May 15, Environment Canada has issued red air quality advisories across parts of northern Alberta. The Air Quality Health Index (AQHI) has been observed at the highest possible level of 10+ in parts of the region and is forecast to remain at this level through at least May 16. Special air quality statements have been issued across the rest of the affected area. Although a shift in wind conditions may lead to some improvements in the situation from May 16, due to the ongoing nature of the wildfires and the possibility of further fires igniting in the region, air quality could quickly deteriorate again; additional advisories may be issued and modified as wildfire and meteorological conditions change over the coming days.

In all areas under air quality advisories, vulnerable groups, including children, the elderly, people suffering from asthma or other lung diseases, and people with heart disease, are at particular risk of negative health consequences from the smoke. Officials have warned that during periods of particularly heavy smoke, everyone is at risk regardless of health or age. People in affected areas are advised to limit outdoor activities and keep doors and windows closed where possible.

The low air quality could cause disruptions at airports in the affected region due to reduced visibility. While most business activities continue as normal, disruptions are possible if conditions deteriorate.