What is the difference between the Air Quality Health Index and the Air Quality Index?
These indexes should not be compared, as each has its own distinct benefits and purpose. The Air Quality Health Index reflects what is currently known about how air pollution affects health. This new tool was designed to help people learn more about the short term health risks. The Air Quality Index (AQI) has been used for many years throughout Québec. It measures air quality according to the degree different pollutants exceed standards or relative limits. It is used to measure air quality but does not include a scale for health risk.