Air Quality Index (AQI) is a tool to showcase air quality status. It transforms complex air quality data of various pollutants into a single number and colour.
AQI has six categories of air quality. These are: Good, Satisfactory, Moderately Polluted, Poor, Very Poor and Severe. Each of these categories is decided based on ambient concentration values of air pollutants and their likely health impacts. As the AQI increases, an increasingly large percentage of the population is likely to experience health effects.
The measurement of air quality is based on eight pollutants, namely
|Remark||AQI||Possible Health Impacts|
|Satisfactory||51-100||Minor breathing discomfort to sensitive people|
|Moderate||101-200||Breathing discomfort to the people with lungs, asthma and heart diseases|
|Poor||201-300||Breathing discomfort to most people on prolonged exposure|
|Very Poor||301-400||Respiratory illness on prolonged exposure|
|Severe||401-500||Affects healthy people and seriously impacts those with existing diseases|