Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Chemical Speciation of Trace Metals in Airborne Particles at An Industrialized Site

공업지역 대기 중 입자에 함유된 미량금속의 화학종별 분석

  • Jeong Gi-Ho (Department of Chemistry, Pusan National University) ;
  • Lee Ji-Young (Department of Chemistry, Pusan National University) ;
  • Moon Ji-Yong (Department of Chemistry, Pusan National University) ;
  • Lee Sung-In (Department of Chemistry, Pusan National University)
  • Published : 2006.06.01
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Abstract

Airborne particles collected from a heavily industrialized site were analyzed by chemical speciation of seven trace metals: Pb, Cd, Cr, Cu, Ni, Zn, and As. The average concentrations were as follows: $Zn,\;502.0{\pm}230.7;\;Pb,\;176.5{\pm}310.9;\;Cu,\;111.9{\pm}82.7;\;As,\;38.0{\pm}31.0;\;Cr,\;21.5{\pm}24.4;\;Cd,\;20.8{\pm}17.4;\;and\;Ni,\;11.4{\pm}8.4\;ng/m^3$. The median enrichment factor (EF) values of Cd (7,280), As (1,030), Cu (215), Zn (214), and Pb (143), with respect to iron, were much larger than 100. We observed that Cd was found in the soluble and exchange- able form (56.9%), and that Pb and Cr were found in carbonates, oxides and the reducible form (69.8% and 61.1%, respectively). These two forms, which are the most easily absorbed into human body tissue, predominated in most of the trace metals investigated in this study.

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References

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