Measurements of polychlorinated biphenyls (PCBs) were taken in surface sediments inside Seogwipo and Hallim Harbors of Jeju Island, Korea, to evaluate their distribution. These harbors typically have heavy ship traffic. The samples were collected three times (in June, October, and December, 2013). PCB concentrations in sediments from Seogwipo Harbor were higher than in those from Hallim Harbor, but both levels were very low, compared with those in other parts of the world. Sedimentary PCB levels had a strong correlation with organic carbon and fine granule mud content. PCB concentration values in the examined surface sediments were much lower than Sediment Quality Guidelines (SQGs) such as ER-L (Effect Rrange-Low), TEL (Threshold Effects Level) and ISQG (Interim Sediment Quality Guideline)-low value applied in countries, such as USA, Canada, and Australia. This suggests that the PCBs did not have significant biological effects on benthic organisms in the marine environment.

Abstract
 1. 서 론
 2. 연구대상 및 방법
  2.1. 연구대상 지역
  2.2. 분석방법
  2.3. 퇴적물 오염기준과 비교
 3. 결과 및 고찰
  3.1. PCBs의 농도 분포
  3.2. PCBs농도분포와 유기탄소와의 상관성
  3.3. PCBs 농도분포와 입도와의 상관성
  3.4. 퇴적물 오염기준(SQGs)과 비교
 4. 결 론
 REFERENCES

• 조은일(제주대학교 환경공학과) | Eun-Il Cho (Department of Environmental Engineering, Jeju National University)
• 허륜용(제주대학교 환경공학과) | Ryun-Yong Heo (Department of Environmental Engineering, Jeju National University)
• 이민규(부경대학교 화학공학과) | Min-Gyu Lee (Department of Chemical Engineering, Pukyong National University)
• 감상규(제주대학교 환경공학과) | Sang-Kyu Kam (Department of Environmental Engineering, Jeju National University) Corresponding author