Which one of the following is included while estimating Air Quality Index (AQI)?

Nitrogen dioxide is the nitrogen oxide included in the Air Quality Index.

It is a criteria pollutant from vehicles and combustion, harmful to the lungs.

Nitrous oxide is a greenhouse gas but is not an index criteria pollutant.

Dinitrogen trioxide is not one of the pollutants tracked by the index.

Dinitrogen pentoxide is not among the index pollutants either.

India's index tracks PM2.5, PM10, NO2, SO2, CO, ozone, ammonia and lead.