The aim of this study was to investigate the accumulation of metallic elements and the control effect of marine pollution caused by ocean dumping in the sediments at a waste disposal area in the Yellow Sea. In July 2009, concentrations of organic matter and metallic elements (Al, Fe, As, Cd, Cr, Co, Hg, Ni, Mn, Pb, and Zn) were measured in surface sediments at the site. The ignition loss (IL) in the surface sediments showed a mean value of 15.4%, about 1.5 times higher than the mean value of the sediments in the coastal areas of Korea. The chemical oxygen demand (COD) at some disposal sites exceeded 20 ㎎ O2/g·dry, which signifies the initial concentration of marine sediment pollutants in Japan. The disposal sites contain higher concentrations of Cr, Cu and Zn than the sediments of bays and estuaries that might be contaminated. The magnitude of both metal enrichment factors (EF) and adverse biological effects suggest that pollution with Cr and Ni occurred due to the dumping of waste in the study area. In addition, the geoaccumulation index (Igeo) showed that the surface sediments were moderately contaminated. By the mid-2000s, when the amount of waste dumped at this site was the highest, the concentration of metallic elements was higher than ever recorded. On the other hand, in 2008-09, the need for environmental management was relatively low compare with the peak. As a result, the quality of marine sediment has been enhanced, considering the effect of waste reduction and natural dilution in the disposal area.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 연구해역
  2.2. 시료분석
  2.3. 오염도 평가
 3. 결과 및 고찰
  3.1. 표층 퇴적물의 유기물 함량
  3.2. 금속원소 분포 특성
  3.3. 금속원소의 오염도 평가
  3.4. 금속원소의 함량비교
 4. 결 론
 참 고 문 헌

• 윤한삼(부경대학교 해양산업개발연구소) | Han-Sam Yoon (Research Center for Ocean Industrial Development, Pukyong National Univ.)
• 이충일(강릉원주대학교 해양자원육성학과) | Chung-Il Lee (Department of Marine Bioscience, Gangneung-Wonju National University)
• 장대수(국립수산과학원 남서해수산연구소) | Dae-Soo Chang (Southwest Sea Fisheries Research Institute, NFRDI)
• 최영찬(제주대학교 지구해양과학과) | Young-Chan Choi (Dept of Earth and Ocean Science, Jeju National University)
• 차형기(국립수산과학원 남서해수산연구소 아열대수산연구센터) | Hyung-Kee Cha (Subtropical Fisheries Research Center, Southwest Sea Fisheries Research Institute, NFRDI)
• 박성은(국립수산과학원 남서해수산연구소 아열대수산연구센터) | Sung-Eun Park (Subtropical Fisheries Research Center, Southwest Sea Fisheries Research Institute, NFRDI) Corresponding author
• 고혁준(국립수산과학원 남서해수산연구소 아열대수산연구센터) | Hyuk-Joon Koh (Subtropical Fisheries Research Center, Southwest Sea Fisheries Research Institute, NFRDI)