The Estimation of PM 2.5 Emissions and Their Contribution Analysis by Source Categories in Korea

The Ministry of Environment will enforce air quality standards for in 2015 because it affects human health as well as climate change and brings about other adverse effects. Until recently, even though a number of researches have reported emissions according to sources, they have not precisely considered the emission factors correspondent to each source for emission estimation. For the sake of establishing emission inventories, this study was undertaken using activity data of each source taken from CAPSS (Clean Air Policy Support System) multiplied by each emission factor of U.S. EPA Speciate or EEA CORINAIR. The 2008`s total annual emission (73.971 ton/yr) can be apportioned into five sources, such as fuel combustion facilities (62.2%), mobiles (33.8%), production processes (3.2%), fires (0.4%), and waste treatments (0.3%). The results show that fuel combustion facilities and mobiles are the predominant sources of , and they should be taken into great account in establishing standards. In addition, it is necessary and urgent to develop effective measures for reduction of emissions from those two main sources as well.