Air pollution is a critical problem of urbanization and industrialization all over the world and it has created number of problems in the city of Colombo. It is responsible for eradicating of plants, animals and causing human health problems. The study has examined the spatial variation in NO2 and SO2 concentration pertaining to air pollution and some areas have been identified as vulnerable areas. It is vital to discover spatial distribution pattern of air pollution in urban area and study the vulnerable sites using Remote Sensing (RS) and Geographic Information Systems (GIS). These...