A Study on the Investigation of Air Pollutant Emissions (2015~2019) in Gunsan

Objectives : In this study, the emission status by year was analyzed using the air pollutant emission data of Gunsan for 5 years from 2015 to 2019. In addition, it is intended to identify the emission characteristics of (Jeonju and Iksan).Methods : Using the air pollutant emission data of the Clean Air Policy Support System(CAPSS) provided by the Ministry of Environment's National Fine Dust Information Center, the status of air pollutant emissions(CO, NO_x, SO_x, PM₁₀, VOC_s, NH₃) in Gunsan was analyzed.Results and Discussion : In Gunsan, CO(car registration number), PM₁₀(cargo transport volume) NH₃(farmland using fertilizer, manure management) emissions increased. NO_x(production of glass products) SO_x{glass (carbon removal process)} and VOCs(whiskey, etc) emissions were reduced. In the emission characteristics, CO and NO_x are mainly road transport and non-road transport pollutants(leisure, cargo) and SO_x is production process{glass(carbon removal process)} and energy industry combustion(private power plant). PM₁₀ is a non-road moving pollutant(ship, cargo), scattering dust(road scattering dust, construction work, agriculture), and VOC_s are food and beverage processing(whiskey, etc) and organic solvent in the production process painting facility (ship manufacturing). NH₃ is agricultural(fertilized cropland, manure management) and production processes(ammonia consumption). In the comparison of emission characteristics, Gunsan(CO, NO_x, SO_x, VOC_s), Jeonju(PM10), Iksan(NH₃) were high.Conclusion : The emission rate of air pollutants in Gunsan was in the order of VOC_s > NO_x > CO > SO_x > NH₃ > PM₁₀. In the comparison of emissions characteristics, Gunsan, Jeonju and Iksan showed the same in NOx and NH₃, but different in CO, SO_x, PM₁₀ and VOC_s characteristics. This case is considered to be influenced by the size of the industrial complex, geographical characteristics of the region, economic structure, and population.