Distribution and pollution assessment of trace metals in core sediments from the artificial lake Shihwa, Korea
- Distribution and pollution assessment of trace metals in core sediments from the artificial lake Shihwa, Korea
- Ra, K.; Kim, E.-S.; Kim, J.-K.; Kim, K.-T.; Lee, J.-M.; Kim, E.-Y.
- KIOST Author(s)
- Ra, Kongtae(나공태); Kim, Kyung Tae(김경태)
- 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.
- Ocean and Polar Research, v.35, no.2, pp.69 - 83, 2013
- benthos; concentration (composition); geoaccumulation; lake pollution; lake water; pollutant source; sediment pollution; toxicity; trace metal; water quality; Kyonggi; Shihwa Lake; South Korea
- Core sediments; Geo-accumulation index; Mean PEL quotient; Sediment quality guidelines; Toxicity; Trace metal
- Related Researcher
Management of marine environment,Marine pollution,Trace metal(Heavy metal),해양환경관리,해양오염,미량금속(중금속)
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