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Characteristics of Aerosol Mass Concentrations and Size Distribution Measured at Anheung, Korea

서해안 안흥에서 관측된 에어로솔의 농도 변화 및 크기분포 특성

  • Lee, Kwon-Ho (Radiation-Satellite Research Institute (RSRI), Department of Atmospheric & Environmental Sciences (DAES), Gangneung-Wonju National University (GWNU)) ;
  • Lee, Kyu-Tae (Radiation-Satellite Research Institute (RSRI), Department of Atmospheric & Environmental Sciences (DAES), Gangneung-Wonju National University (GWNU)) ;
  • Kim, Jung-Ho (Agency for Defense Development) ;
  • Mun, Gwan-Ho (Agency for Defense Development) ;
  • Ahn, Joon-Mo (Agency for Defense Development)
  • 이권호 (강릉원주대학교 복사위성연구소, 대기환경과학과) ;
  • 이규태 (강릉원주대학교 복사위성연구소, 대기환경과학과) ;
  • 김정호 (국방과학연구소) ;
  • 문관호 (국방과학연구소) ;
  • 안준모 (국방과학연구소)
  • Received : 2018.10.03
  • Accepted : 2018.10.06
  • Published : 2018.10.31

Abstract

An intensive measurement was conducted to study the mass and number concentrations of atmospheric aerosols in Anheung ($36.679^{\circ}N$, $126.186^{\circ}E$), the west coastal measurement site of Korea during December 2017~April 2018. To evaluate relationships between the aerosols and meteorological parameters, comparisons of Optical Particle Counter (OPC) measured data and Auto Weather System (AWS) data were performed. Measured PM mass concentrations are $PM_{10}=42.814{\pm}30.103{\mu}g/m^3$, $PM_{2.5}=29.674{\pm}25.063{\mu}g/m^3$, $PM_1=28.958{\pm}24.658{\mu}g/m^3$, respectively. The PM ratios showed that the $PM_{10}$ concentrations contained about 67.8% of $PM_{2.5}$, while most part of $PM_{2.5}$ was $PM_1$ (about 97.1%). Timely collocation with AWS data were performed, exploring relations with the PM concentrations. PM concentrations can be explained by wind direction and relative humidity conditions. The significant reductions of fine particles in mass and number concentrations may attribute to actions on particle growth and wet removal. In these results, we suppose that the aerosol concentrations and size distributions are affected by inflow direction and air mass sources from the origin.

Acknowledgement

Grant : BRDF 감소모델 및 실환경 해양/대기 복사특성 연구

Supported by : 국방과학연구소

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