What is the difference between the existing air quality index and the new Air Quality Health Index?
Despite their similar names, the Air Quality Health Index and the current Air Quality Index are two very different tools that serve different purposes, as shown in the table below: Differences Air Quality Index (Ontario) Air Quality Health Index (National Pilot) Jurisdiction Provincial – Ontario Ministry of the Environment National – Environment Canada and Health Canada Reports Air quality Health risk Pollutants Based on single highest pollutant Based on health effects of multiple pollutants Health messages Same for all populations Different for at-risk versus general population Scale An AQI scale of 0 to 100+ An AQHI scale of 1 to 10+
