Seasonal variation in trace element concentrations and Pb isotopic composition of airborne particulates during Asian dust and non-Asian dust periods in Daejeon, Korea

Pyeong Koo Lee, Ho Young Jo, Min Ju Kang, Soon Oh Kim

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12 Citations (Scopus)

Abstract

Trace element contamination (As, Cd, Cr, Co, Cu, Mo, Ni, Pb, S, Zn, and Zr) in both Asian dust (AD) and non-Asian dust (NAD) periods taken from Daejeon, Korea, in 2008 was examined, and the pollution sources were evaluated based on the Pb stable isotope. Additionally, temporal variation in the trace element concentrations of total suspended particulate matter, PM10 and PM2.5, was evaluated in 14 samples for AD and 46 samples for NAD collected from March 2007 to November 2008. Patterns showed that the monthly mean concentrations of trace elements in winter were 2–13 times higher than those in other seasons. In contrast, the monthly mean concentrations of sulfur were the highest in the summer monsoon season. Distinct temporal patterns were observed in the monthly mean concentrations of trace elements, due mainly to high coal combustion in China. These results were supported by the 206Pb/207Pb ratios of AD and NAD, which were identical or similar to those of the airborne particles in certain heavily industrialized Chinese cities and coal and coal combustion dust of China. The Pb isotopic composition in the particulate matter of NAD showed lower 206Pb/207Pb, 207Pb/204Pb, and 206Pb/204Pb ratios in the autumn, winter, and spring seasons, showing the influence of Pb from the heavily industrial cities of China, and higher values in the summer, indicating the dilution and/or mixing effect of the marine air mass from the south.

Original languageEnglish
Pages (from-to)3613-3628
Number of pages16
JournalEnvironmental Earth Sciences
Volume74
Issue number4
DOIs
Publication statusPublished - 2015 Aug 25

Bibliographical note

Funding Information:
This research was partly supported partly by a grant (NEMA-06-NH-08) from the Natural Hazard Mitigation Research Group of the National Emergency Management Agency and by the Basic Research Project of the Korea Institute of Geoscience and Mineral Resources (KIGAM) funded by the Ministry of Science, ICT and Future Planning of Korea. We also thank the reviewers and editor for their constructive and thoughtful comments on the manuscript.

Publisher Copyright:
© 2015, Springer-Verlag Berlin Heidelberg.

Keywords

  • Asian dust
  • Contamination
  • Pb isotopes
  • Temporal variation
  • Trace elements

ASJC Scopus subject areas

  • Water Science and Technology
  • Earth-Surface Processes
  • Pollution
  • Geology
  • Soil Science
  • Global and Planetary Change
  • Environmental Chemistry

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