plSSN : 0374-8111 | elSSN : 2287-8815
plSSN : 0374-8111 | elSSN : 2287-8815
plSSN : 0374-8111elSSN : 2287-8815
Distributions and Pollution Assessment of Organic Matter and Trace Metals in Beach Sediments along the Coast of Jeju Island, Korea
황동운*·이가람·최민규·임재현
국립수산과학원 해양환경연구과
We measured the concentrations of organic matter (acid volatile sulfide, chemical oxygen demand, and ignition loss) and trace metals (As, Cd, Cr, Cu, Fe, Hg, Mn, Pb, and Zn) in beach sediments of Jeju Island to evaluate organic mat ter and trace metal pollution in the environment. Organic matter concentrations were similar at each station and were lower than the sediment quality guidelines (SQGs). The trace metal concentrations differed significantly between stations and decreased in the following order: Fe>Mn>Zn>Cr>As>Cu>Pb>Cd>Hg. In particular the concentrations of As, Cd, and Zn in the study regions were significantly higher than those in Korean intertidal sediments. Based on the assessment results for trace metal pollution using SQGs, the enrichment factor, geoaccumulation index, and pol lution load index, the beach sediments around Jeju Island were practically unpolluted with Cd, Cr, Cu, Hg, Mn, and Pb; moderately polluted with Zn; and strongly polluted with As. More intensive monitoring is required to determine the potential sources and understand the geochemical cycles of organic matter and trace metals in beach sediments around Jeju Island.
Beach sediment, Trace metal, Organic matter, Pollution assessment, Jeju Island