Journal of Korean Society of Environmental Engineers (대한환경공학회지)

Korean Society of Environmental Engineers (대한환경공학회)
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Characteristics of Gaseous Dissolved Mercury and Total Mercury in Yangsuri Marsh of Korea

양수리 용늪의 용존 수은 및 총수은 농도 특성에 대한 연구

  • Yang, Ji-Hye (Management Consulting Division, Richard Consulting Inc.) ;
  • Han, Young-Ji (Department of Environmental Science, College of Natural Science, Kangwon National University) ;
  • Kim, Pyung-Rae (Department of Environmental Science, College of Natural Science, Kangwon National University) ;
  • Park, Sang-Young (Technical Department, APM Engineering Co., Ltd.) ;
  • Seo, Yong-Seok (Department of Environment and Public Health, School of Public Health, Seoul National University) ;
  • Lee, Jong-Hwan (Department of Environment and Public Health, School of Public Health, Seoul National University) ;
  • Kim, Moon-Kyung (Department of Environment and Public Health, School of Public Health, Seoul National University) ;
  • Yi, Seung-Muk (Department of Environment and Public Health, School of Public Health, Seoul National University) ;
  • Cho, Kyung-Deok (Department of Environment and Public Health, School of Public Health, Seoul National University)
  • 양지혜 (리차드 컨설팅(주) 경영컨설팅 사업부) ;
  • 한영지 (강원대학교 자연과학대학 환경과학과) ;
  • 김평래 (강원대학교 자연과학대학 환경과학과) ;
  • 박상영 ((주)에이피엠 엔지니어링 기술지원부) ;
  • 서용석 (서울대학교 보건대학원 환경보건학과) ;
  • 이종환 (서울대학교 보건대학원 환경보건학과) ;
  • 김문경 (서울대학교 보건대학원 환경보건학과) ;
  • 이승묵 (서울대학교 보건대학원 환경보건학과) ;
  • 조경덕 (서울대학교 보건대학원 환경보건학과)
  • Received : 2012.06.26
  • Accepted : 2012.12.10
  • Published : 2012.12.30
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Abstract

Long-term measurement of total mercury (TM) and dissolved gaseous mercury (DGM) were performed in Yangsuri marsh. Average TM and DGM concentrations were $2.0{\pm}2.0$ ng/L and $15.0{\pm}2.8$ pg/L, respectively, indicating that only 2.6% of TM existed as the form of DGM in Yangsuri marsh. While TM did not show the seasonal variation a statistically high DGM concentration was observed in warm season, indicating that DGM was effectively produced by strong solar radiation and high water temperature. There was no relationship between TM and DGM concentrations in Yangsuri marsh, as observed in other studies. DGM in Yangsuri marsh was supersaturated for most of sampling period; therefore, one can conclude that $Hg^0$ in water surface can readily volatilize to the atmosphere.

본 연구에서는 장기간 동안 양수리 용늪에서의 총 수은(TM)과 용존가스상 수은(DGM; $Hg^0$) 농도를 측정하였다. 평균 TM 및 DGM의 농도는 각각 $2.0{\pm}2.0$ ng/L와 $15.0{\pm}2.8$ pg/L로 나타나, TM의 약 2.6%만이 DGM의 형태로 존재하였다. 연구기간동안 TM 농도는 뚜렷한 계절적 변이를 보이지 않았으나 DGM 농도는 여름철에 통계적으로 유의하게 높은 농도가 나타났다. 이는, DGM이 강한 태양광과 높은 수온에 의해서 효과적으로 생성된다는 것을 의미한다. 또한 양수리 용늪에서 측정한 TM과 DGM 농도 사이에는 유의한 상관관계가 관측되지 않았다. 양수리 용늪에서 측정한 DGM은 대부분의 연구 기간 동안 과포화 상태로 존재하였으며, 이는 수표면의 $Hg^0$가 대기로 쉽게 휘발될 수 있다는 사실을 나타낸다.

Keywords

Acknowledgement

Supported by : 한국연구재단

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