- Selected Location/Month-wise Status of Ambient Air Quality under National Clean Air Programme (NCAP) in Howrah District of West Bengal (2021-2022)
- Selected Location/Month-wise Status of Ambient Air Quality under National Clean Air Programme (NCAP) in Howrah District of West Bengal (2020-2021)
- Status of Ambient Air Quality (Annual Average) under National Air Quality Monitoring Programme (NAMP) in Howrah District of West Bengal (2021)
- Ambient Air Quality Status of Nitrogen Dioxide (NO2) Levels (Annual Average) At Selected Cities and Locations under National Air Quality Monitoring Programme (NAMP) in West Bengal (2020)
- 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 West Bengal (2020)
- Selected Location/Month-wise Status of Ambient Air Quality under National Clean Air Programme (NCAP) in Howrah District of West Bengal (2019-2020)
- Ambient Air Quality Status of Sulphur Dioxide (SO2) Levels (Annual Average) At Selected Cities and Locations under National Air Quality Monitoring Programme (NAMP) in West Bengal (2020)
- 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 West Bengal (2020)
- 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 West Bengal (2019)
- 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 West Bengal (2019)
- Selected Location/Month-wise Status of Ambient Air Quality under National Clean Air Programme (NCAP) in Howrah District of West Bengal (2018-2019)
- Ambient Air Quality Status of Nitrogen Dioxide (NO2) Levels (Annual Average) At Selected Cities and Locations under National Air Quality Monitoring Programme (NAMP) in West Bengal (2019)
- Ambient Air Quality Status of Sulphur Dioxide (SO2) Levels (Annual Average) At Selected Cities and Locations under National Air Quality Monitoring Programme (NAMP) in West Bengal (2019)
- 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 West Bengal (2018)
- Ambient Air Quality Status of Sulphur Dioxide (SO2) Levels (Annual Average) At Selected Cities and Locations under National Air Quality Monitoring Programme (NAMP) in West Bengal (2018)
- Ambient Air Quality Status of Nitrogen Dioxide (NO2) Levels (Annual Average) At Selected Cities and Locations under National Air Quality Monitoring Programme (NAMP) in West Bengal (2018)
- Selected Location/Month-wise Status of Ambient Air Quality under National Clean Air Programme (NCAP) in Howrah District of West Bengal (2017-2018)
- Ambient Air Quality Status of Nitrogen Dioxide (NO2) Levels (Annual Average) At Selected Cities and Locations under National Air Quality Monitoring Programme (NAMP) in Howrah District of West Bengal (2017)
- Ambient Air Quality Status of Sulphur Dioxide (SO2) Levels (Annual Average) At Selected Cities and Locations under National Air Quality Monitoring Programme (NAMP) in Howrah District of West Bengal (2017)
- Selected Location/Month-wise Status of Ambient Air Quality under National Clean Air Programme (NCAP) in Howrah District of West Bengal (2016-2017)
- 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 Howrah District of West Bengal (2017)
- Selected Location/Month-wise Status of Ambient Air Quality under National Clean Air Programme (NCAP) in Howrah District of West Bengal (2015-2016)
- Selected Location/Month-wise Status of Ambient Air Quality under National Clean Air Programme (NCAP) in Howrah District of West Bengal (2014-2015)
- Selected Location/Month-wise Status of Ambient Air Quality under National Clean Air Programme (NCAP) in Howrah District of West Bengal (2013-2014)
- Selected Location/Month-wise Status of Ambient Air Quality under National Clean Air Programme (NCAP) in Howrah District of West Bengal (2012-2013)
- Selected Location/Month-wise Status of Ambient Air Quality under National Clean Air Programme (NCAP) in Howrah District of West Bengal (2011-2012)
- Selected Location/Month-wise Status of Ambient Air Quality under National Clean Air Programme (NCAP) in Howrah District of West Bengal (2010-2011)
- Selected Location/Month-wise Status of Ambient Air Quality under National Clean Air Programme (NCAP) in Howrah District of West Bengal (2007-2008)
- Selected Location/Month-wise Status of Ambient Air Quality under National Clean Air Programme (NCAP) in Howrah District of West Bengal (2006-2007)
- Selected Location/Month-wise Status of Ambient Air Quality under National Clean Air Programme (NCAP) in Howrah District of West Bengal (2005-2006)
- Selected Location/Month-wise Status of Ambient Air Quality under National Clean Air Programme (NCAP) in Howrah District of West Bengal (2004-2005)
- Selected Location/Month-wise Status of Ambient Air Quality under National Clean Air Programme (NCAP) in Howrah District of West Bengal (2003-2004)
- Location-wise Monthly Ambient Air Quality Status of Howrah District of West Bengal (2003)