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  • 한국과학기술정보연구원(KISTI) 서울분원 대회의실(별관 3층)
  • 2024년 07월 03일(수) 13:30
 

  • P-ISSN1225-0163
  • E-ISSN2288-8985
  • SCOPUS, ESCI, KCI

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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

안동호 퇴적물 중 수은 및 중금속의 분포특성 연구

Distribution of heavy metals and mercury in sediment from the lake An-dong

분석과학 / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2012, v.25 no.6, pp.441-446
https://doi.org/10.5806/AST.2012.25.6.441
박진주 (국립환경과학원)
김기준 (국립환경과학원)
유석민 (국립환경과학원)
김은희 (국립환경과학원)
석광설 (국립환경과학원)
허인애 (국립환경과학원)
김영희 (국립환경과학원)
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초록

본 연구에서는 안동호 퇴적물 중의 총 수은, 메틸수은, 중금속 농도를 조사하고 퇴적물과 수체간의 수은 이동량을 산정하였다. 안동호 퇴적물 중 수은 농도는 2009~2011 년에 각각 155.0±71.9 ng/g,211±62 ng/g 및 198±6.88 ng/g이었으며, 메틸수은은 2009 년 및 2011 년에 각각 1.85±1.09 ng/g, 3.49±1.79ng/g이었고, 총수은에 대한 메틸수은의 분율인 %메틸수은은 1.17±0.39% 및 1.77±0.94%로 나타났다. 퇴적물 중 아연, 카드뮴, 납, 구리의 농도는 644 mg/kg, 7.3 mg/kg, 67 mg/kg, 42 mg/kg 으로 모두 미국국립해양대기청(NOAA, National Oceanic and Atmospheric Administration)에서 제시한 퇴적물 기준(SQGs,Sediment Quality Guidelines)중의 최소 무영향 농도(ERL, Effect Range Low) 수준을 초과하는 수준이었다. 안동호에서 퇴적물로의 수은 이동량은 83.7 ng/cm2·년, 퇴적물에서부터 수체로의 수은 확산속도는1.24 ng/cm2·년으로 추정되었다.

keywords
mercury, methylmercury, heavy metal, sediment, sedimentation rate, diffusion flux

Abstract

In this study, mercury, methylmercury and heavy metals in sediment from the lake Andong were analyzed,along with the estimation of mercury flux between sediments and water in the lake Andong. Average mercury concentrations in sediments sampled in 2009~2011 were 155.0±71.9 ng/g, 211±62 ng/g and 198±6.88 ng/g,respectively. The average methylmercury concentration were 1.85±1.09 ng/g (2009) and 3.49±1.79 ng/g (2011), and %methylmercury, the fraction of methylmercury in total mercury were 1.17±0.39% and 1.77±0.94%, respectively. Heavy metal (Zn, Cd, Pb, Cu) concentrations of the sediments exceeded ERL (Effect Range Low) level of US NOAA (National Oceanic and Atmospheric Administration)'s sediment quality criteria. Estimated mercury sedimentation flux was found to be 83.7 ng/cm2·yr and mercury diffusion flux was estimated as 1.24 ng/cm2·yr.

keywords
mercury, methylmercury, heavy metal, sediment, sedimentation rate, diffusion flux


참고문헌

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