naa a22 4500 510750079 CHVBK 20180411083101.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11270-013-1609-y doi (NATIONALLICENCE)springer-10.1007/s11270-013-1609-y Influence of Sediment Grain Size and Land Use on the Distributions of Heavy Metals in Sediments of the Han River Basin in Korea and the Assessment of Anthropogenic Pollution [Elektronische Daten] [Tien Lai, Wonkyo Lee, Jin Hur, Younghun Kim, In-Ae Huh, Hyun-Sang Shin, Chan-Kook Kim, Jong-Hyun Lee] The influence of sediment grain size and land use was examined on the distribution of Cr, Ni, Zn, Pb, Cd, Cu, As, and Hg in the sediments collected from 19 subbasins of the Han River Basin, Korea. The degree of anthropogenic pollution of the heavy metals was also evaluated using the enrichment factor and geoaccumulation index based on local geochemical background concentrations. Except for Zn and Al, all the metals investigated showed significant correlations with the fine silt fraction of the sediments, suggesting that grain size distribution may contribute to the enrichment of the metals. Close association of the metal concentrations with a percentage of urban area in the subbasin was exhibited only for Cd, Cu, Hg, and Pb. The two pollution indices revealed that most of the sediments could be classified into a category of "unpolluted to moderately polluted,” except for a subbasin with the highest percentage of urban area, which was highly polluted with Cu, Hg, and Pb. No relationship was observed between agricultural land use and the enrichment of metals. Principal component analysis showed that a combination of grain size distribution and percent urban area were responsible for 55% of the variance of the metal distribution. Cluster analysis revealed that the sources of As might be different from the other metals. Multiple regression analyses based on fine silt fraction and percent urban area resulted in a good estimation of the concentrations of Cd, Cu, Hg, and Pb (r > 0.7, p < 0.005). Springer Science+Business Media Dordrecht, 2013 River sediments nationallicence Metal pollution nationallicence Geochemical background nationallicence Enrichment factor nationallicence Land use nationallicence Multivariate statistical analyses nationallicence Lai Tien Department of Environment and Energy, Sejong University, 143-747, Seoul, South Korea aut Lee Wonkyo Department of Environment and Energy, Sejong University, 143-747, Seoul, South Korea aut Hur Jin Department of Environment and Energy, Sejong University, 143-747, Seoul, South Korea aut Kim Younghun Department of Environmental Engineering, Andong National University, 760-749, Andong, South Korea aut Huh In-Ae National Institute of Environmental Research, 404-708, Incheon, South Korea aut Shin Hyun-Sang Department of Environmental Engineering, Seoul National University of Science and Technology, 139-743, Seoul, South Korea aut Kim Chan-Kook NEO Environmental Business Corporation, 420-806, Bucheon, South Korea aut Lee Jong-Hyun NEO Environmental Business Corporation, 420-806, Bucheon, South Korea aut Water, Air, & Soil Pollution Springer Netherlands 224/7(2013-07-01), 1-12 0049-6979 224:7<1 2013 224 11270 https://doi.org/10.1007/s11270-013-1609-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-013-1609-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lai Tien Department of Environment and Energy, Sejong University, 143-747, Seoul, South Korea aut NATIONALLICENCE 700 1- Lee Wonkyo Department of Environment and Energy, Sejong University, 143-747, Seoul, South Korea aut NATIONALLICENCE 700 1- Hur Jin Department of Environment and Energy, Sejong University, 143-747, Seoul, South Korea aut NATIONALLICENCE 700 1- Kim Younghun Department of Environmental Engineering, Andong National University, 760-749, Andong, South Korea aut NATIONALLICENCE 700 1- Huh In-Ae National Institute of Environmental Research, 404-708, Incheon, South Korea aut NATIONALLICENCE 700 1- Shin Hyun-Sang Department of Environmental Engineering, Seoul National University of Science and Technology, 139-743, Seoul, South Korea aut NATIONALLICENCE 700 1- Kim Chan-Kook NEO Environmental Business Corporation, 420-806, Bucheon, South Korea aut NATIONALLICENCE 700 1- Lee Jong-Hyun NEO Environmental Business Corporation, 420-806, Bucheon, South Korea aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/7(2013-07-01), 1-12 0049-6979 224:7<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer