Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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The geochemical characteristic and quality assessment of surface sediments in Sihwa Lake

시화호 표층퇴적물의 특성과 오염도 평가

  • Ju, Jae Sik (South Sea Fisheries Research Institute, National Institute of Fisheries Science) ;
  • Son, Moonho (South Sea Fisheries Research Institute, National Institute of Fisheries Science) ;
  • Cho, Hyeon-Seo (Environmental Oceanography, Chonnam National University) ;
  • Kim, Pyoung-Joong (South Sea Fisheries Research Institute, National Institute of Fisheries Science)
  • 주재식 (국립수산과학원 남해수산연구소) ;
  • 손문호 (국립수산과학원 남해수산연구소) ;
  • 조현서 (전남대학교 환경해양학과) ;
  • 김평중 (국립수산과학원 남해수산연구소)
  • Received : 2016.11.11
  • Accepted : 2016.12.08
  • Published : 2016.12.31
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Abstract

The purpose of this study was to understand the pollution level of the surface sediment of Sihwa Lake by assessing its geochemical characteristics and investigating the spatial distribution of trace metals and organic matter. In the surface sediment of Sihwa lake, the mean grain size was between 2.94 and 6.35 Ø and the main type of sediment was sandy silt. The concentrations of As, Co, Cr, Ni, V and Li among the metal elements in the surface sediment were correlated with the mean crust concentration (p<0.05). Based on the strong correlation between the metals (Cd, Cu, Pb and Zn) and organic matter (Ignition Loss), the concentrations of these metal elements seem to be controlled by the organic matter dilution effect. The trace metal pollution level, determined by applying the Republic of Korea Marine environmental standard and the US National Oceanic and Atmospheric Administration's sediment quality guidelines, showed the pollution level of As to be either close to or in excess of the above-mentioned standards at almost all levels. The enrichment factor and geoaccumulation index of As showed that there was an incremental increase of pollution by elements other than V, Cr, Co, Fe, Al and Mn. Moreover, the nearby industrial area and dike were more polluted than the other areas, so the surface sediments in Sihwa lake should be monitored by taking into consideration the geological variations.

시화호 표층퇴적물 중 지구화학적 특성과 미량금속의 오염도 평가를 위해 입도, 강열감량(IL), 화학적산소요구량(COD) 및 미량금속(As, Pb, Cd, Cu, Cr, Zn, Ni, Mn, Hg, Fe, Li)을 분석 하였다. 시화호 표층퇴적물의 평균입도는 2.94~6.35Ø의 범위로 분포하였으며, 퇴적상은 전반적으로 sandy silt(sZ)를 나타내었고, 이러한 표층퇴적물의 성상은 유기물 및 미량금속의 농도와 상관관계를 나타내었다 (p<0.05). 특히, 표층퇴적물 중 As, Pb, Cd, Cu, Cr, Zn, Fe, Hg은 평균입도와 상관성을 보일 뿐만 아니라, IL(Ignition Loss)과도 높은 상관성을 보여 이들 원소의 농도가 입도와 유기물의 영향을 받고 있는 것으로 나타났다. 이에 시화호의 표층퇴적물 관리에 있어서 미량금속의 유입 뿐 만 아니라 유기물의 유입을 병행하여 조사되어야 할 것으로 판단되었다. 오염도 평가에 있어서 표층퇴적물 중 미량금속 함량의 농축계수와 농집지수는 대부분 약간 오염된 상태를 나타낸 가운데, As의 경우 농축계수와 농집지수 가 오염된 상태를 보였다. 이는 특정 중금속에 의한 농축이 여전히 해결되지 않은 것으로 나타나, 이를 해결할 수 있는 방안마련이 시급할 것으로 사료되었다. 아울러 비교적 공단지역 및 배수갑문에 근접한 지역은 오염도가 높은 반면, 시화호 중앙부분은 오염도가 낮은 경향을 보여, 지역적 편차를 고려한 지속적인 모니터링시 이 필요할 것으로 판단되었다.

Keywords

References

  1. MLTM, "Marine Environment Improvement Project in Sihwa lake". p. 380, 2010.
  2. J.I. Jang, I.S. Han, K.T. Kim, K.T. Ra, "Characteristics of Water Quality in the Shihwa Lake and Outer Sea". Journal of the Korean Society of Marine Environment and Safty. vol. 17, pp. 105-121, 2011. DOI: https://doi.org/10.7837/kosomes.2011.17.2.105
  3. MLTM, "Coastal Environmental Management White paper of Sihwa lake". p. 412, 2011.
  4. K.T. Ra, K.T. Kim, J.K. Kim, E.S. Kim, S.R. Cho, S.H. Kang, S.K. Kim, "Study on the changes of water qualities affected by the operation of tidal power plant from Shihwa Lake", Kor AOSTS. p. 2300-2308, 2012.
  5. K.T. Ra, J.H. Bang, J.M. Lee, K.G. Kim, E.S. Kim, "The extent and historical trend of metal pollution recorded in core sediment from the artificial Lake Shihwa, Korea", Marine Pollution Bulletin, vol. 62, pp. 1814-1821, 2011. DOI: https://doi.org/10.1016/j.marpolbul.2011.05.010
  6. Z.G. Li, D.H. Li, J.R. Oh, J.G. Je, "Seasonal and spatial distribution of nonylphenol in Shihwa Lake, Korea", Chemosphere, vol. 56, pp. 611-618, 2004. DOI: https://doi.org/10.1016/j.chemosphere.2004.01.008
  7. H.B. Moon, M.K. Choi, H.G, Choi, K. Kannan,"Severe Pollution of PCDD/Fs and dioxin-like PCBs in sediments from Lake Shihwa Korea : Tracking the source", Marine Pollution Bulletin, vol. 64, pp. 2357-2360, 2012. DOI: https://doi.org/10.1016/j.marpolbul.2012.08.018
  8. J.S. Khim, S.J. Hong, "Assessment of trace pollutions in Korea coastal sediments using the triad apporach : A review", Science of the Total Environment, vol. 470-471, pp. 1450-1462, 2014. DOI: https://doi.org/10.1016/j.scitotenv.2013.07.052
  9. M.S. Hyun, I.S. Chang, H.S. Park, B H. Kim, H.J. Kim, H.K, Lee, K.K. Kwon, "Relationship between the Organic Content, Heavy Metal Concentration and Anaerobic Respiration Bacteria in the Sediments of Shiwha-Ho" Kor. J. Appl. Microbiol. Biotechnol., vol. 27, pp. 252-259, 1999.
  10. K.T. Kim, E.S. Kim, S.R. Cho, J.K. Park, C.K. Park, "Change of heavy metals in the surface sediments of the Lake Shihwa and its tributaries", Ocean Polar Res., vol. 25, pp. 447-457, 2003. DOI: https://doi.org/10.4217/OPR.2003.25.4.447
  11. H.L. Windom, S.J. Schropp, F.D. Calder, J.D. Ryan, R.G. Smith, L.C. burney, F.G. Lewis, and C.H. Rawlinson, "National trace metals concentrations in estuarine and coastal marine sediments of the southeastern United states", Environ. Sci. Technol., vol. 23, pp. 314-320. 1989. DOI: https://doi.org/10.1021/es00180a008
  12. S.R. Taylor, S.M. McLennan, " The Continental Crust: its Composition and Evolution", Blackwell Blackwell Scientific, Oxford, p. 311, 1985.
  13. J.H. Choi, J.W. Kang, D-B. Hong, Y-A Park, "Distribution of organic carbon, organic nitrogen, and heavy metals in Lake Shihwa sediments", Journal of the Korean socidity of oceanogrphy, vol. 5, no. 4, pp. 276-284, 2000.
  14. H. Yokoyama, "Environmental quality criteria for aquaculture farms in Japanese coastal area . a new policy and its potential problems". Bul. Natl. Res. Inst. Aquacult., vol. 29, pp. 123-134, 2000.
  15. G.H. Hong, S.L. Cho, S.Q. Park, "Nutrients and pariculate organic matter in Lake Soyang during the thermally strified period". J. KS WPRC, vol. 5, pp. 35-46, 1989.
  16. M. Choi, J. Chun, H. Woo, H. Yi, "Change of heavy metals and sediment facies in surface sediments of the Shiwha Lake". J. Kor. Environ. Sci. Soc., vol. 8, pp. 593-600, 1999.
  17. M.J. Shim, E.S. Kim, K.T. Kim, G.B. Lee, H.S. Kang, K.W. Lee, "Distribution of Organic Carbon, Sulfur and Heavy Metals in Shihwa Lake Sediments". J. KSWQ, vol. 14, pp. 469-482, 1998.
  18. J. Choi, J. Kang, D. Hong, Y. Park. "Distribution of organic carbon, organic nitrogen, and heavy metals in Lake Shiwha sediments". J. Kor. Soc. Oceanogr. vol. 5, pp. 276-84. 2000
  19. MLTM, "Study on Improvement of Marine Environments in the Shihwa Coastal Reservoir". p. 420, 2008.
  20. T. Kim, M-J. Kim "Remediation of mine tailings contaminatited with arsenic and heavy metals: Reoval of arsenic by soil washing. J. of KSEE. vol. 30, no. 8 pp. 808-816. 2008.