Journal of Atmospheric Chemistry

, Volume 61, Issue 2, pp 155–173 | Cite as

Compositions and source apportionments of atmospheric aerosol during Asian dust storm and local pollution in central Taiwan

  • Man-Ting Cheng
  • Wei-Chun Chou
  • Chia-Pin Chio
  • Shih-Chieh Hsu
  • Yi-Ru Su
  • Pei-Hsuan Kuo
  • Ben-Jei Tsuang
  • Shuen-Hsin Lin
  • Charles C.-K. Chou


A study has been carried out on water soluble ions, trace elements, as well as PM2.5 and PM2.5–10 elemental and organic carbon samples collected daily from Central Taiwan over a one year period in 2005. A source apportionment study was performed, employing a Gaussian trajectory transfer coefficient model (GTx) to the results from 141 sets of PM2.5 and PM2.5–10 samples. Two different types of PM10 episodes, local pollution (LOP) and Asian dust storm (ADS) were observed in this study. The results revealed that relative high concentrations of secondary aerosols (NO 3 , SO 4 2− and NH 4 + ) and the elements Cu, Zn, Cd, Pb and As were observed in PM2.5 during LOP periods. However, sea salt species (Na+ and Cl) and crustal elements (e.g., Al, Fe, Mg, K, Ca and Ti) of PM2.5–10 showed a sharp increase during ADS periods. Anthropogenic source metals, Cu, Zn, Cd, Pb and As, as well as coarse nitrate also increased with ADS episodes. Moreover, reconstruction of aerosol compositions revealed that soil of PM2.5–10 elevated approximately 12–14% in ADS periods than LOP and Clear periods. A significantly high ratio of non-sea salt sulfate to elemental carbon (NSS-SO 4 2− /EC) of PM2.5–10 during ADS periods was associated with higher concentrations of non-sea-salt sulfates from the industrial regions of China. Source apportionment analysis showed that 39% of PM10, 25% of PM2.5, 50% of PM2.5–10, 42% of sulfate and 30% of nitrate were attributable to the long range transport during ADS periods, respectively.


Chemical compositions Asian dust storm Local pollution Source apportionment 


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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • Man-Ting Cheng
    • 1
  • Wei-Chun Chou
    • 1
  • Chia-Pin Chio
    • 1
    • 2
  • Shih-Chieh Hsu
    • 3
  • Yi-Ru Su
    • 1
  • Pei-Hsuan Kuo
    • 1
  • Ben-Jei Tsuang
    • 1
  • Shuen-Hsin Lin
    • 1
  • Charles C.-K. Chou
    • 3
  1. 1.Department of Environmental EngineeringNational Chung Hsing UniversityTaichungRepublic of China
  2. 2.Department of Bioenvironmental Systems EngineeringNational Taiwan UniversityTaipeiRepublic of China
  3. 3.Research Center for Environmental ChangesAcademia SinicaTaipeiRepublic of China

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