Journal
MARINE POLLUTION BULLETIN
Volume 62, Issue 8, Pages 1814-1821Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2011.05.010
Keywords
Trace metals; Metal pollution; Lake Shihwa; Dike construction; Reclamation project
Funding
- Ministry of Land, Transport and Maritime Affairs, Korea [PM 54791, PM 55531]
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The vertical distribution of trace metals in sediment cores was investigated to evaluate the extent and the historical record of metal pollution over 30 years in the artificial Lake Shihwa in Korea. A marked increase of trace metals after 1980 was observed due to the operation of two large industrial complexes and dike construction for a reclamation project. There was a decreasing trend of metal concentrations with the distance from the pollution source. The enrichment factor and pollution load index of the metals indicated that the metal pollution was mainly derived from Cu, Zn and Cd loads due to anthropogenic activities. The concentrations of Cr, Ni, Cu, Zn, As and Pb in the upper part of all core sediments exceeded the ERL criteria of NOAA Our results indicate that inadequate planning and management of industrialization and a large reclamation project accomplished by dike construction have continued to strongly accelerate metal pollution in Lake Shihwa. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved.
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