- 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)