The AQHI is a health protection tool that is designed to help you make decisions to protect your health by limiting short-term exposure to air pollution and adjusting your activity levels during increased levels of air pollution. It is based on the following pollutants in our air: Ozone (O3), Fine Particulate Matter (PM2.5), Nitrogen Dioxide (NO2).
Note: The Air Quality Health Index on this web page are based on automatically polled data and have not undergone final verification.
Note: N/A (Not Available) denotes invalid or missing data.
|Air Quality Health Index Categories and Values|
(1 - 3)
(4 - 6)
(7 - 10)
|Very High Risk
|Health Risk||Air Quality Health Index||Health Messages|
|At Risk Population*||General Population|
|Low||1 - 3||Enjoy your usual outdoor activities.||Ideal air quality for outdoor activities.|
|Moderate||4 - 6||Consider reducing or rescheduling strenuous activities outdoors if you are experiencing symptoms.||No need to modify your usual outdoor activities unless you experience symptoms such as coughing and throat irritation.|
|High||7 - 10||Reduce or reschedule strenuous activities outdoors. Children and the elderly should also take it easy.||Consider reducing or rescheduling strenuous activities outdoors if you experience symptoms such as coughing and throat irritation.|
|Very High||Above 10||Avoid strenuous activities outdoors. Children and the elderly should also avoid outdoor physical exertion.||Reduce or reschedule strenuous activities outdoors, especially if you experience symptoms such as coughing and throat irritation.|
* People with heart or breathing problems are at greater risk. Follow your doctor's usual advice about exercising and managing your condition.