A silhouette is mirrored in waste machinery oil that will be washed into the river Ganga in Calcutta, West Bengal, India on 23 July 2007. Calcutta is known to be one of the world's most polluted city. Estimated by National Environmental Engineering Research Institute (NEERI), 60 percent of Calcutta's residents suffer from some kind of respiratory disease due to air pollution. The burning of coal as an industrial and domestic fuel accounts for a significant proportion of pollutant emissions, especially (SPM) Suspended particulate matter from coal combustion is clearly a major problem throughout Calcutta. Calcutta tops all Indian cities when it comes to lung cancer - at 18.4 cases per 100,000 people - far ahead of Delhi at 13.34 cases per 100,000. Air pollution becomes acute in Calcutta during winter. Pollutants cannot disperse easily, mainly due to inversion, low wind speed and high congestion. EPA/PIYAL ADHIKARY

 

HP Climate Change Photography Contest 2009

Joint Second Prize

Photographer: Piyal Adhikari