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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Distribution Characteristics of Heavy Metals in the Ambient Air of Ulsan Area

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2001, v.14 no.5, pp.442-450
Moon, Ji-Yong
Kim, Young-Bok
Lee, Ji-Young
Jeong, Gi Ho
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Abstract

In this study, we collected PM10(particulate matter less than <TEX>$10{\mu}m$</TEX>) by using a high volume air sampler from March 2000 to September 2000 to investigate the contamination level and the distribution characteristics of heavy metals in the ambient air in Ulsan area. Samples were pretreated by the microwave extraction methods, and heaby metals (Cr, Cu, Zn, Cd, Ni, As, and Pb) were quantified by using and ICP-MS system. The highest PM10 concentrations in the ambient air were <TEX>$85.6{\mu}g/m^3$</TEX> and the aberage value was <TEX>$37.1{\mu}g/m^3$</TEX>. The maximum levels of each heavy metal were as follows: <TEX>$2.5{\mu}g/m^3$</TEX> for Fe(Yeocheon-dong), <TEX>$0.41{\mu}g/m^3$</TEX> for Zn(Nammok-2-dong), <TEX>$0.061{\mu}g/m^3$</TEX> for Cd(Yeocheon-dong), <TEX>$0.20{\mu}g/m^3$</TEX> for Pb(Yeocheon-dong), <TEX>$0.037{\mu}g/m^3$</TEX> for Ni(Yeoncheon-dong), <TEX>$0.88{\mu}g/m^3$</TEX> for Cu(Yaeum-dong), <TEX>$0.042{\mu}g/m^3$</TEX> for Cr(Yaeum-dong), and <TEX>$0.015{\mu}g/m^3$</TEX> for As(Onsan). Among concentration of heavy metals, Ni and Zn compounds were highly correlated with a correlation coefficient of 0.87 at Nammok-2-dong.

keywords
heavy metals, ambient air, microwave extraction, ICP-MS


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