Ecological Recovery of Contaminated Dredged Materials in Masan Bay, Korea

마산만 오염 준설토사의 생태회복

  • Published : 2008.01.31


A large amount of $2.1{\times}10^6m^3$ of polluted sediment was dredged from the Masan Bay and deposited in Gapo confined area, Masan, Korea. The six representative sediments were obtained and analyzed for issue components. The data was discussed with the species of benthos and their distribution. It was judged that toxicological effects of sediment analyzed ranged from ERL to ERM with copper and zinc, and ERL with cadmium, chrome, lead and nickel by the Adverse Biological Effects. The dredging index (DI) of sediments stabilized for 10 years since dumping the confined site was calculated and compared with the DI values of dredged sediment itself. DI values decreased from 0.67 to $0.07{\sim}0.18$, which reflects DI value less than 0.2 is good for benthos in the sediment by the natural recovery of dredged materials. The ecological recovery was confirmed in this confined area as a habitat of benthic organisms.


Dredged Materials;Natural Recovery;Heavy Metal;Dredging Index


  1. 안순모, 2003b, 인공 갯벌을 이용한 마산만 오염물질의 자연정화 연구, 한국과학재단 특정 기초 연구 2차년도 중간 보고서, p.1-13
  2. 안순모, 2003a, 마산만 가포지역 인공갯벌의 유기물 및 영양염 수지 한국과학재단특정 기초 연구 2차 년도 중간 보고서, p.1-8
  3. 권영택, 2004, 마산만 오염퇴적물 준설토 투기해역의 중금속 오염평가, 한국해양환경공학회지, 72(2), 75-81
  4. 해양수산부, 2002, 해양환경공정시험방법
  5. 이종현, 1996, 경기 내만 및 시화호의 저서동물군집의 특성과 퇴적물 내 유기물 및 중금속의 농축에 관한 연구, 서울대학교 보건대학원 석사학위논문, 1-15
  6. 이찬원, 권영택, 윤지훈, 2004, 연안해역 오염퇴적물 개선을 위한 준설판단지수(Dredging Index, DI) 개발, 한국해양환경공학회지, 7(2), 70-74