- Ambient Air Quality Status of PM2.5 (Particulate Matter Less than 2.5 Micron) Levels (Annual Average) At Selected Cities and Locations under National Air Quality Monitoring Programme (NAMP) in Raigarh District of Chhattisgarh (2017)
- Ambient Air Quality Status of PM10 (Particulate Matter Less than 10 Micron) Levels (Annual Average) At Selected Cities and Locations under National Air Quality Monitoring Programme (NAMP) in Raigarh District of Chhattisgarh (2017)