Air Quality Health Index
The Air Quality Health Index is a tool that helps people understand what the local outside air quality means to their health. Using a scale from one to 10, the lower the number, the lower the health risk. An outdoor activity recommendation corresponds to each risk category.
Seven of our continuous monitoring stations provide data on substances required by the provincial and federal governments to calculate and forecast an Air Quality Health Index (AQHI) for the region. Daily and forecast ratings are updated every three hours. While the daily rating is based on what is occurring at individual stations, the forecast is a regional prediction of the average concentration of monitored substances at our Fort Saskatchewan, Bruderheim, Lamont County, Redwater and Elk Island stations. Each week we publish here the AQHI data we collect from our AQHI stations. There is also an AQHI Canada app that you can download. Check our Library for quarterly and annual AQHI statistics.
AQHI levels were in the low to moderate range for the majority of the week, with the exception of several hours on Feb 13 and 14 at Gibbons and Bon Accord when levels were in the high risk category. A temperature inversion trapped substances from various local emission sources at ground level during those two days. This led to elevated particulate matter levels, increasing the AQHI to the high risk category.