Asian Journal of Atmospheric Environment

Korean Society for Atmospheric Environment (한국대기환경학회)
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Numerical Study on the Impact of Power Plants on Primary PM10 Concentrations in South Korea

  • Park, Il-Soo (Korea-Latin America Green Convergence Center, Hankuk University of Foreign Studies) ;
  • Song, Chang-Keun (School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology) ;
  • Park, Moon-Soo (Research Center for Atmospheric Environment, Hankuk University of Foreign Studies) ;
  • Kim, Byung-Gon (Department of Atmospheric Environmental Sciences, GangneungWonju National University) ;
  • Jang, Yu-Woon (Korea-Latin America Green Convergence Center, Hankuk University of Foreign Studies) ;
  • Ha, Sang-Sub (Korea-Latin America Green Convergence Center, Hankuk University of Foreign Studies) ;
  • Jang, Su-Hwan (Korea-Latin America Green Convergence Center, Hankuk University of Foreign Studies) ;
  • Chung, Kyung-Won (Korea-Latin America Green Convergence Center, Hankuk University of Foreign Studies) ;
  • Lee, Hyo-Jung (Department of Atmospheric Sciences, Pusan National University) ;
  • Lee, Uh-Jeong (Korea-Latin America Green Convergence Center, Hankuk University of Foreign Studies) ;
  • Kim, Sang-Kyun (Division of Global Environmental Research, National Institute of Environmental Research) ;
  • Kim, Cheol-Hee (Department of Atmospheric Sciences, Pusan National University)
  • Received : 2018.03.31
  • Accepted : 2018.09.05
  • Published : 2018.09.30
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Abstract

To develop effective emission abatement strategies for eighteen coal-fired power plants located throughout Korea, power plant emission data and TAPM (The Air Pollution Model) were used to quantify the impact of emission reductions on primary $PM_{10}$ concentrations. TAPM was validated for two separate time periods: a high $PM_{10}$ concentration period from April 7 to 12, 2016, and a low $PM_{10}$ concentration period from June 1 to June 6 2016. The validated model was then used to analyze the impacts of five applicable power plant shut-down scenarios. The results showed that shut-down of four power plants located within the Seoul metropolitan area (SMA) would result in up to 18.9% reduction in maximum $PM_{10}$ concentrations, depending on synoptic conditions. A scenario for the shutdown of a single low stack height with highest-emission power plant located nearest to Seoul showed a small impact on averaged $PM_{10}$ concentrations (~1%) and 4.4% ($0.54{\mu}g/m^3$) decrease in maximum concentration. The scenario for four shutdowns for power plants aged more than 30 years within SMA also showed a highest improvement of 6.4% ($0.26{\mu}g/m^3$ in April) in averaged $PM_{10}$ concentrations, and of 18.9% ($2.33{\mu}g/m^3$ in June) in maximum concentration, showing almost linear relationship in and around SMA. Reducing gaseous air pollutant emissions was also found to be significant in controlling high $PM_{10}$ concentrations, indicating the effectiveness of coreduction of power plant emissions together with diesel vehicle emissions in the SMA. In addition, this study is implying that secondary production process generating $PM_{10}$ pollution may be a significant process throughout most regions in Korea, and therefore concurrent abatement of both gas and particle emissions will result in more pronounced improvements in air quality over the urban cities in South Korea.

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References

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