Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Characteristics of Fine Particles Measured in Two Different Functional Areas and Identification of Factors Enhancing Their Concentrations

강원도 춘천과 영월에서 측정한 미세먼지 농도 특성 및 고농도 원인 분석

  • Cho, Sung-Hwan (Department of Environmental Science, College of Natural Science, Kangwon National University) ;
  • Kim, Hyun-Woong (Department of Environmental Science, College of Natural Science, Kangwon National University) ;
  • Han, Young-Ji (Department of Environmental Science, College of Natural Science, Kangwon National University) ;
  • Kim, Woo-Jin (Environmental Health Center, Kangwon National University Hospital, Kangwon National University School of Medicine)
  • 조성환 (강원대학교 자연과학대학 환경학과) ;
  • 김현웅 (강원대학교 자연과학대학 환경학과) ;
  • 한영지 (강원대학교 자연과학대학 환경학과) ;
  • 김우진 (강원대학교 병원 환경보건센터)
  • Received : 2016.01.05
  • Accepted : 2016.01.26
  • Published : 2016.02.29
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Abstract

In this study, the characteristics of $PM_{2.5}$ and $PM_{2.5-10}$ concentrations were identified in two different functional areas including Chuncheon and Youngwol, Korea. Even though the anthropogenic emission rates of $PM_{2.5}$ and $PM_{10}$ are approximately four times higher in Youngwol than in Chuncheon their atmospheric concentrations were statistically higher in Chuncheon. In Chuncheon, both $PM_{2.5}$ concentrations and the ratio of $PM_{2.5}/PM_{10}$ increased as relative humidity (RH) increased possibly because the inorganic and/or organic secondary aerosols were actively formed at high RH. This result was also supported by that $PM_{2.5}$ concentration was enhanced under the fog and mist conditions in Chuncheon. On the other hand, both $PM_{2.5}$ and $PM_{2.5-10}$ concentrations clearly increased with the southerly winds blown from the cement production facility in Youngwol. In addition, high $PM_{2.5-10}$ concentrations were observed with high wind speed, low relative humidity, and high $NO_2$ concentrations in Youngwol, suggesting that $PM_{2.5-10}$ was generated through the physical process including crushing and packing procedures followed by resuspension from cement and lime factory.

Keywords

References

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