title: The extent and historical trend of metal pollution recorded in core sediments from the artificial Lake Shihwa, Korea.
abstract: 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.
authors.affiliation: Marine Environment and Pollution Research Department, Korea Ocean Research and Development Institute (KORDI), Ansan 426-744, Republic of Korea.
authors.forename: Kongtae
authors.initials: K
authors.lastname: Ra
authors.forename: Jae-Hyun
authors.initials: JH
authors.lastname: Bang
authors.forename: Jung-Moo
authors.initials: JM
authors.lastname: Lee
authors.forename: Kyung-Tae
authors.initials: KT
authors.lastname: Kim
authors.forename: Eun-Soo
authors.initials: ES
authors.lastname: Kim
mesh_terms: D004784:Environmental Monitoring / Q000266:history / Q000379:methods*; D005618:Fresh Water / Q000032:analysis* / Q000737:chemistry; D019015:Geologic Sediments / Q000032:analysis* / Q000737:chemistry; D049673:History, 20th Century; D049674:History, 21st Century; D007723:Korea; D008670:Metals / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D008670:Metals; D014874:Water Pollutants, Chemical