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An Analysis of Aerosol Mass Concentrations and Elemental Constituents Measured at Cheongwon depending on the Backward Trajectories of Air Parcel in East Asia in 2011
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 Title & Authors
An Analysis of Aerosol Mass Concentrations and Elemental Constituents Measured at Cheongwon depending on the Backward Trajectories of Air Parcel in East Asia in 2011
Kim, Hak-Sung; Byun, Kwang-Tae; Chung, Yong-Seung; Choi, Hyun-Jung; Kim, Min-Jung;
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 Abstract
This study analyzed mass concentrations of TSP, PM10 and PM2.5 and elemental constituents according to the isentropic backward trajectories of air parcel from Cheongwonin East Asia during the period January - October, 2011. Mass concentrations of the continental polluted airflow (CP) showed levels of TSP and PM10 mass concentrations higher than the continental background airflow (CB). Also, PM2.5 mass concentrations of anthropogenic fine particles ran higher in CP than in CB. The elemental constituents and elemental constituent ratio ended up varying depending on the origin of atmospheric aerosols generated. The average absolute content of elemental constituents reached its height in CB, the ratio of anthropogenically originating elements (PE) among the all elements (AE) analyzed marked a high in CP, and Mg+Na/AE reached its height in the oceanic airflow (OA). At the same time, TSP, PM10 and PM2.5 mass concentrations, the ratio of PM2.5/TSP and PE/AE element ratio ran higher in CP than CB. Episodes of large-scale transport of atmospheric pollutants as observed at Cheongwon were 8 cases and 22 days. The ratios of PM10, PM2.5 among TSP mass concentrations showed different results and the ratios of PM2.5 showed an increasing trend in the episodes of anthropogenic air pollution transport. Overall, dustfall episodes show a level of elemental constituents higher than those of anthropogenic air pollution.Dustfall episodes were observed to contain more of Fe, Al and Ca originating from continental soils and those of air pollution were observed to contain more of Zn, Mn, Cu and Pb. By difference in contents of absolute elemental constituents, episodes of anthropogenic air pollution showed a high PE/AE rate, and dustfall episodes a high SE/AE rate.
 Keywords
Backward trajectory;Mass concentration(TSP, PM10 and PM2.5);Elemental constituents;Mineral dustfall;Anthropogenic air pollution;
 Language
Korean
 Cited by
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Journal of Environmental Science International, 2013. vol.22. 8, pp.1053-1062 crossref(new window)
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