Change of Heavy Metals and Sediment Facies in Surface Sediments of the Shihwa Lake

시화호 표층퇴적물의 중금속 및 퇴적상 변화

  • 최만식 (기초과학지원연구소 동위원소분석팀) ;
  • 천종화 (한국해양연구소 해양지질연구단) ;
  • 우한준 (한국해양연구소 해양지질연구단) ;
  • 이희일 (한국해양연구소 해양지질연구단)
  • Published : 1999.10.01

Abstract

In order to determine the changes of sediment facies and metal levels in surface sediments after the construction of Shiwha Lake, surface sediments were sampled at 8 sites located on the main channel monthly from June, 1995 to August, 1996 and analysed for 12 metals (Al, Fe, Mn, V, Cr, Co, Ni, Cu, Zn, Cd, As and Pb) by ICP/AES and ICP/MS. Two groups of sampling sites(the inner lake with 3 sites and the outer lake with 5 sites) are subdivided by the surface morphology ; the inner lake is a shallow channel area with a gentle slope, while the outer lake is relatively deep and wide channel with a steep slope which has many small distributaries. After the construction of dam, fine terrestrial materials were deposited near the outer lake, which resulted in the change of major sediment facies from sandy silt to mud. With the deposition of fine sediments in the outer lake, anoxic water column induced the formation of sulfide compounds with Cu, Cd, Zn and part of Pb. Metal (Cr, Ni, Cu, Zn and Cd) contents in sediments increased up to twice within 2 years after the construction of dam. This is due to the direct input of industrial and municipal wastes into the lake and the accumulation of metals within the lake. In addition, frequent resuspension of contaminated sediments in a shallow part of the lake may make metal-enriched materials transport near the outer lake with fine terrestrial materials. As the enrichment of Cu, Zn, Cd and part of Pb in the Shiwha Lake may be related to the formation of unstable sulfide compounds by sulfate reduction in anoxic water or sediment column, the effect of mixing with open coastal seawater is discussed.

Keywords

Shihwa lake;sediment;metal

References

  1. 시화호의 환경변화조사 및 보전대책 수립에 관한 연구(1차년도) 김은수(등)
  2. Mar. Poll. Bull. v.32 A mechanism for the enrichment of Cu and depletion of Mn in anoxic marine sediments, Banweol intertidal flat in Korea Jung, H.S.;Y.G. Cho;C.B. Lee;J.K. Kang
  3. 한국해양환경공학회 춘계학술대회 논문집 시화방조제의 건설이후 시화호내 퇴적환경변화 천종화;이희일;한상준
  4. Mar. Chem. v.40 The investigation of dissolved and suspended-particulate trace metal fractionation in the Black Sea Lewis, B.L.;W.M. Landing
  5. 한국해양학회지, 「바다」 v.2 시화호 산화-환원 환경하의 용존 유·무기 화합물의 생지화학적 연구 박용철;박준건;한명우;손승규;김문구;허성회
  6. International Conference on Contaminated Sediments Biomobilization of contaminants from sediments Foekema, E.M.;M.C. Scholten
  7. 한국해양학회지 v.28 no.3 황해 경기만 반월조간대 퇴적물 내의 황화물 형성과 행동에 관한 연구 김범수;이창복
  8. Environ. Sci. Technol. v.8 History of metal pollution in Southern California coastal zone Bruland, K.W.;K. Bertine;M. Koide;E.D. Goldberg
  9. Metal Pollution in the Aquatic Environment Forstner, U.;G.T.W. Wittmann
  10. Metals in the Hydrocycle Salomons, W.;U. Forstner
  11. J. Kor. Soc. Ocean. v.32 no.3 Depositional environment and distribution of heavy metal off the Shiwa Dam. Oh, J.K.
  12. 한반도 주변해역 퇴적물 중 금속원소의 분포와 기원에 관한 연구 조영길
  13. International Conference on Contaminated Sediments. Mobility of contaminants in relation to dredging operations in a mesotidal estuary(Tagus Estuary, Portugal) Vale, C.;A.M. Ferreira;C. Micaelo;M. Caetano;E. Pereira;M.J. Madureira;E. Ramalhosa
  14. Distribution of trace metals in the riverine, atmospheric and marine environments in the western coast of the Yellow Sea, Korea Choi
  15. Proceeding of Environmental Aspects of dredging Activities. Physico-chemical models of marine sediments Wollast, R.;Alzieu(ed);Gallene(ed)
  16. J. Oceanol. Soc. Korea. v.27 Distribution and properties of intertidal surface sediments of Kyeonggi Bay, west coast of Korea. Lee, C.B.;H.R. Yoo;K.S. Park
  17. 시화지구 담수호 수질보전대책 수립 조사보고서 한국수자원공사;농어촌진흥공사
  18. 한국물환경학회지 v.14 no.4 시화호 퇴적물의 유기탄소, 황 및 중금속 분포 심무준;김은수;김경태;이기복;강화성;이광우
  19. 한국해양학회지 v.2 시화호에서 암모니아와 납의 저층용출 한명우;박용철;허성회
  20. Mar. Poll. Bull. v.30 The influence of industrial effluents on intertidal benthic communities in Panweol, Kyeonggi Bay (Yellow Sea) on the west coast of Korea Ahn, I.Y.;Y.C. Kand;J.W. Choi
  21. Korea. J. Oceanol. Soc. Korea v.20 Sedimentology and geochemical properties of intertidal surface sediments of the Banweol area in the southern part of Kyunggi Bay Lee C.B.;Y.A. Park;C.W. Koh
  22. 시화호의 환경변화조사 및 보전대책 수립에 관한 연구(2차년도) 김은수(등)
  23. Petrology of Sedimentary Rock Folk, R.L.