• Pollution Level of Heavy Metals of Asian Dust in Daejeon Area, 2008
  • Lee, Pyeong-Koo;Bae, Beob-Geun;
  • Geologic Environment Division, Korea Institute of Geoscience and Mineral Resources;Department of Geosystem Engineering, Daejeon University;
  • 2008년 대전지역에서 발생한 황사의 중금속 오염도
  • 이평구;배법근;
  • 한국지질자원연구원 지구환경연구본부;대전대학교 지구시스템공학과;
Abstract
The aims of this study were to determine concentrations of selected metals in Asian and non-Asian dust collected in Daejeon, Korea between February 2008 and December 2008 and to estimate the pollution level. The geochemical analyses of Asian dust (AD) and Non Asian dust (NAD) show that the mean concentrations of As, Cd, Cu, Pb, Zn, Zr, Sb, Mo and S reached levels up to 16, 209, 31, 43, 81, 28, 31, 122 and 302 times higher, respectively, than those in uncontaminated Chinese desert soils. These results indicate that both AD and NAD serve as an atmospheric repository for trace and heavymetal accumulation. The the enrichment factor (EF) and pollution index (PI) show that AD and NAD were severely contaminated by S, Mo, Zr, Cd, Pb, Zn, Sb, Cu, and As. All indices for these metals showed either strong or notably high level of pollution relative to Chinese desert soil, principally due to the severe atmospheric pollution derived from anthropogenic activities in heavily industrial Chinese cities. Therefore, Mo, Cd, Zr, As, Cu, Sb, Pb, and Zn are the ones most strongly affected by anthropogenic inputs such as airborne pollutants.

Keywords: Asian dust;Trace element;Enrichment factor;Pollution index;Pollution level;

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This Article

  • 2014; 19(1): 8-25

    Published on Feb 28, 2014

  • 10.7857/JSGE.2014.19.1.008
  • Received on Aug 8, 2013
  • Revised on Dec 25, 2013
  • Accepted on Dec 25, 2013