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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,
J., Kim,
Y., Lee,
J., &
Jeong,
G.
H.
(2001). Distribution Characteristics of Heavy Metals in the Ambient Air of Ulsan Area. Analytical Science and Technology, 14(5), 442-450.
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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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