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Trace Element Analysis and Source Assessment of Household Dust in Daegu, Korea  

Do, Hwa-Seok (Public Health and Environment Institute of Daegu Metropolitan City)
Song, Hee-Bong (Public Health and Environment Institute of Daegu Metropolitan City)
Jung, Yeoun-Wook (Public Health and Environment Institute of Daegu Metropolitan City)
Yoon, Ho-Suk (Public Health and Environment Institute of Daegu Metropolitan City)
Kwak, Jin-Hee (Public Health and Environment Institute of Daegu Metropolitan City)
Han, Jeong-Uk (Public Health and Environment Institute of Daegu Metropolitan City)
Kang, Hye-Jung (Public Health and Environment Institute of Daegu Metropolitan City)
Phee, Young-Gyu (Department of Health Science, Daegu haany University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.32, no.1, 2010 , pp. 69-78 More about this Journal
Abstract
In order to investigate the degree of household dust contamination, 48 samples of household dust (24 from urban area and 24 from rural area) in Daegu city were collected in vacuum cleaner during January to February 2009. Samples were sieved below 100 ${\mu}m$, and 14 elements (Al, Ca, Cd, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, V, Zn) were analyzed using ICP after acid extraction. Results obtained from the source assessment of trace elements using enrichment factor showed that Ca, Fe, K, Mg, Mn, Na, and V were influenced by natural sources such as weathered rock and resuspended soil, while Cd, Cr, Cu, Ni, Pb and Zn were influenced by anthropogenic sources such as fuel combustion and waste incineration. Concentrations were remarkably higher in components from natural sources than in components from urban anthropogenic sources. Household dust in urban area was more affected by anthropogenic sources compared with that of rural area. Pollution index of heavy metals revealed that urban area was 1.8 times more contaminated with heavy metal components than rural area. The correlation analysis among trace elements indicated that components were correlated with natural sources-natural sources (Al-Mg, Al-Mn, Fe-Mn) and natural sources-anthropogenic sources (Al-V, Fe-Cr, V-Mn) in both urban area and rural area. Trace element components of rural area were more correlated than those of urban area. Houses that use oil for heating fuel had relatively higher contents of heavy metals rather than those using gas or electricity for heating fuel. Houses with children also had higher contents of heavy metals. In addition, the age of houses was found to influence the heavy metal levels in household dusts, with older houses (>10years) having higher concentrations than newer houses (<10years) and houses located near the major road (<10 m) were found to have relatively higher heavy metal levels in household dust.
Keywords
Household Dust; Trace Elements; Enrichment Factor; Pollution Indices;
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Times Cited By KSCI : 3  (Citation Analysis)
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