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http://dx.doi.org/10.5572/KOSAE.2018.34.5.677

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

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)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.34, no.5, 2018 , pp. 677-686 More about this Journal
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.
Keywords
Aerosol; PM; Optical Particle Counter; Particle size;
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