Journal of Korean Society of Environmental Engineers (대한환경공학회지)
- Volume 22 Issue 1
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- Pages.149-157
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- 2000
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- 1225-5025(pISSN)
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- 2383-7810(eISSN)
Level and Fate of Arsenic(As) in the Namdae Stream
강릉 남대천 수계의 비소(As) 농도 분포 및 거동특성 연구
- Yoon, Yi-Yong (Department of Environmental Engineering, Kwandong University) ;
- Kim, Kyung-Tae (Chemical Oceanography Division, Korea Ocean Research & Development Institute)
- Received : 1999.08.12
- Accepted : 1999.10.08
- Published : 2000.01.31
Abstract
This paper presents the first results of dissolved arsenic in the Kangnung Namdae stream. The distribution of As concentrations measured in 28 August (high water flow) and in 21 November 1997 (low water flow) differs from those of other metals measured during the same period; The concentrations of Doam-dam are lower than those of Obong-dam and accumulation in the downstream in the period of low water flow is not pronounced. The As concentration in the downstream under the low water flow is lower than under high water flow, reciprocally to other metals. Freshwater concentrations are comparable with those measured in pristine river and lower than the world average and the diffrence of concentrations measured during two period is minute. Therefore, the As concentrations in the Namdae stream are background level and the source of As contamination does not exist. In the mixing zone between the freshwater and Donghae seawater, As behave conservatively, indicating the absence of any significant removal or mobilization processes. A first estimation of total dissolved As input from Namdae stream to Donghae coastal sea shows 65.12 kg/yr.
깅릉 남대천 수계에서 처음으로 용존 비소(As)의 분포와 거동에 관한 연구가 수행되었다. 풍수기인 1997년 8월 28일(최종 방류량;