MHLU - Health Status Resource

Air Quality Index (AQI)

This index is based on six pollutants that have adverse effects on human health and the environment: ozone (O3), fine particulate matter (PM2.5), nitrogen dioxide (NO2), carbon monoxide (CO), sulphur dioxide (SO2), and total reduced sulphur (TRS) compounds.

AQI < 32 = good or very good; AQI 32-49 = moderate; AQI 50-99 = poor; AQI >99 = very poor

Air quality in the poor or very poor range can have adverse effects on a large portion of the animal/human population and can damage property and vegetation. (Ministry of the Environment, 2008)