Case Studies of Source Apportionment from the Indian Sub-continent
The chapter reviews the studies on source apportionment conducted in the Indian sub-continent focussing mainly on respirable particulate matter including their sources and characteristics. The receptor models used in identification of major sources of respirable particulate matter and their fractions are also comprehensively described. Among the countries in the Indian sub-continent, India has carried out the greatest number of studies, including spatio-temporal variations, characterization and apportionment of the particulate matter sources. However, in Pakistan, the primary focus has been given towards apportionment of particulate matter, which has mainly been carried out in two mega cities,