- Ambient Air Quality Status of Sulphur Dioxide (SO2) Levels (Annual Average) At Imphal City and Locations under National Air Quality Monitoring Programme (NAMP) in Imphal East District of Manipur (2018)
- Ambient Air Quality Status of Nitrogen Dioxide (NO2) Levels (Annual Average) At Imphal City and Locations under National Air Quality Monitoring Programme (NAMP) in Imphal East District of Manipur (2018)
- Ambient Air Quality Status of PM10 (Particulate Matter Less than 10 Micron) Levels (Annual Average) At Imphal City and Locations under National Air Quality Monitoring Programme (NAMP) in Imphal East District of Manipur (2018)