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http://dx.doi.org/10.4217/OPR.2013.35.2.069

Distribution and Pollution Assessment of Trace Metals in Core Sediments from the Artificial Lake Shihwa, Korea  

Ra, Kongtae (Marine Environments and Conservation Research Division, KIOST)
Kim, Eun-Soo (Oceanographic Measurement and Instrument Calibration Service Center, KIOST)
Kim, Joung-Keun (Marine Environments and Conservation Research Division, KIOST)
Kim, Kyung-Tae (Marine Environments and Conservation Research Division, KIOST)
Lee, Jung-Moo (Oceanographic Measurement and Instrument Calibration Service Center, KIOST)
Kim, Eu-Yeol (Marine Environments and Conservation Research Division, KIOST)
Publication Information
Ocean and Polar Research / v.35, no.2, 2013 , pp. 69-83 More about this Journal
Abstract
Metal concentrations in creek water, sewer outlets and core sediments were analyzed to identify the potential origin of metal pollution and to evaluate the extent of metal pollution and potential toxicity of Lake Shihwa. Mean concentrations for dissolved metals in creek water and sewer outlets were 1.6~136 times higher than those in the surface seawater of Lake Shihwa. Metal concentrations in creek water from an industrial region were also higher than those from municipal and agricultural regions, indicating that the potential source of metal pollution in the study area might be mainly due to industrial activities. The vertical profiles of metals in core sediments showed an increasing trend toward the upper sediments. Extremely higher concentrations of metals were observed in the vicinity of Banweol industrial complex. The results of a geo-accumulation index indicated that Cu, Zn and Cd were highly polluted. By comparing the sediment quality guidelines such as TEL and PEL, six metals such as Cr, Ni, Cu, Zn, Cd and Pb levels in core sediments nearby industrial complex exceeded the PEL value. Mean PEL quotient (mPELQ) was used to integrate the estimate of potential toxicity for measured metals in the present study. Mean PELQs in core sediments from Lake Shihwa ranged from 0.2~2.3, indicating that benthic organisms nearby the industrial complex may have been adversely affected.
Keywords
trace metal; core sediments; geo-accumulation index; sediment quality guidelines; mean PEL quotient; toxicity;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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