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http://dx.doi.org/10.5572/KOSAE.2013.29.6.701

Ionic Compositions and Carbonaceous Matter of PM2.5 at Ieodo Ocean Research Station  

Han, Jihyun (Department of Earth and Environmental Sciences, Korea University)
Kim, Jahan (Department of Earth and Environmental Sciences, Korea University)
Kang, Eunha (Suwon Research Institute)
Lee, Meehye (Department of Earth and Environmental Sciences, Korea University)
Shim, Jae-Seol (Korea Institute of Ocean Science and Technology)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.29, no.6, 2013 , pp. 701-712 More about this Journal
Abstract
The purpose of this study is to determine concentrations and compositions of $PM_{2.5}$ and their characteristic variations at Ieodo Ocean Research Station in the East China Sea and to examine the influence of air pollutants transported from Asia continents. $O_3$ and meteorological parameters were measured since June 2003 and $PM_{2.5}$ filter samples were collected from June 2004 to June 2008. In total, 244 samples were analyzed for water soluble ions and carbonaceous compounds. The mean mass concentration of $PM_{2.5}$ and $O_3$ were $21.8{\pm}14.9{\mu}g/m^3$ and $51.6{\pm}16.1$ ppb, respectively. The average concentrations (mass fractions) of sulfate and ammonium were $6.26{\mu}g/m^3$ (28.74%) and $1.59{\mu}g/m^3$ (7.31%), respectively. Nitrate was considered to be lost through evaporation due to long stay at the station. The mean concentrations of EC and OC were $1.01{\mu}g/m^3$ and $2.34{\mu}g/m^3$, respectively, from June 2006 to June 2008. The average OC/EC ratio was 2.31. The organic matter converted from OC by multiplying 2.1 and elemental carbon constituted 22.60% and 4.66% of $PM_{2.5}$ mass, respectively.
Keywords
$PM_{2.5}$; Nitrate; Sulfate; OC; EC; Ieodo Ocean Research Station;
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Times Cited By KSCI : 5  (Citation Analysis)
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