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http://dx.doi.org/10.5806/AST.2014.27.4.213

Compositions of haze aerosols and their variation by inflow pathway of air mass at Gosan site in Jeju Island during 2012-2013  

Hyeon, Dong-Rim (Department of Chemistry, Jeju National University)
Song, Jung-Min (Department of Chemistry, Jeju National University)
Kim, Ki-Ju (Department of Chemistry, Jeju National University)
Kim, Won-Hyung (Department of Chemistry, Jeju National University)
Kang, Chang-Hee (Department of Chemistry, Jeju National University)
Ko, Hee-Jung (Asian Dust Research Laboratory, National Institute of Meteorological Research)
Publication Information
Analytical Science and Technology / v.27, no.4, 2014 , pp. 213-222 More about this Journal
Abstract
The atmospheric aerosols of $PM_{10}$ and $PM_{2.5}$ were collected at Gosan site of Jeju Island during 2012- 2013. Their ionic and elemental species were analyzed in order to examine the composition variation of the haze aerosols in accordance with the pathway of air mass. The concentrations of $nss-SO_4{^{2-}}$, $NO_3{^-}$, and $NH_4{^+}$ increased 2.1~3.7 times in coarse particle and 3.1~6.5 times in fine particle modes, respectively, showing especially high $NO_3{^-}$ concentrations in fine particles during the haze days. The concentrations of S, Zn, Pb and K increased 3.0~5.6 times in coarse particles and 3.2~7.7 times in fine particles during the haze days, on the other hand Al, Fe, and Ca concentrations were high only in coarse particles. Due to the back trajectory analysis, the concentrations of $nss-SO_4{^{2-}}$ and $NO_3{^-}$ for haze days were high when the inflow pathway of air mass was from China, especially a high increase of $NO_3{^-}$ as through the south of China. The $NO_3{^-}/nss-SO_4{^{2-}}$ concentration ratio was relatively high in coarse mode as air mass inflow from China, but in fine mode it was high as air mass passing through the Korean peninsula.
Keywords
haze; air mass inflow; $PM_{10}$; $PM_{2.5}$; Gosan site;
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