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A Correlation Analysis between Visibility and PM10 in Jinju

진주지역 시정과 미세먼지(PM10) 농도와의 상관관계

  • Kim, Hyoung-Kab (Department of Environmental Engineering, Gyeongnam National University of Science and Technology) ;
  • Suh, Jeong-Min (Department of Bio-Environmental Energy, Pusan National University) ;
  • Park, Jeong-Ho (Department of Environmental Engineering, Gyeongnam National University of Science and Technology)
  • 김형갑 (경남과학기술대학교 환경공학과) ;
  • 서정민 (부산대학교 바이오환경에너지학과) ;
  • 박정호 (경남과학기술대학교 환경공학과)
  • Received : 2017.02.21
  • Accepted : 2017.04.03
  • Published : 2017.04.30

Abstract

This study was conducted to investigate how $PM_{10}$ concentration and Relative Humidity (RH) affected visibility in Jinju, Korea. A 9-yr dataset of 1 h averages for visibility, $PM_{10}$, and RH data was analyzed to examine the correlation between these variables. On average, visibility decreased by 1.4 km for every $10{\mu}g/m^3$ increase in $PM_{10}$ and by 2.1 km for every 10% increase in RH. In general, a negative correlation was observed between visibility and and $PM_{10}$ concentration. However, under conditions of low $PM_{10}$ concentration(< $15{\mu}g/m^3$) and visibility(< 2 km), there was a positive correlation between these two variables. In this case, RH levels were high (> 75%). A high correlation analysis between two variables need to be under control conditions with RH < 75%, $PM_{10}$ $15{\sim}100{\mu}g/m^3$, and visibility > 2 km.

Acknowledgement

Supported by : 경남과학기술대학교

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