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팔당호 표층 퇴적물에 함유된 중금속의 입도 의존성에 관한 연구
신경용,전상호,Shin, Kyung-Yong,Jun, Sang-Ho 한국환경보건학회 2012 한국환경보건학회지 Vol.38 No.5
Objective: The purpose of this study was to present the standard deviation of the elemental normalization of concentration of selected heavy metals in the surface sediment of Lake Paldang. Methods: Grain size dependency of selected heavy metal concentrations in the surface sediments of Lake Paldang was analyzed by the extrapolation method. The heavy metal concentrations were the sum of all fractions. Results: Cd and Cu showed an increase of the coefficient of determination($r^2$) in the fractional content of particle size, from <256 ${\mu}m$ to <20 ${\mu}m$, and a decrease from <20 ${\mu}m$ to <1 ${\mu}m$. The normalized concentration of Cd and Cu by extrapolation at 50% <20 ${\mu}m$ were 0.8 mg/kg, 37.0 mg/kg, 57.6 mg/kg and 201.7 mg/kg respectively. Conclusions: The normalized concentrations in the sediment of Lake Paldang are 1.5-2.0 times higher than mean average concentration. We concluded that in interpretation of heavy metal concentration in the sediment of Lake Paldang, normalization of grain size dependency should be considered.
P-142 : 한강 수계 총량유역 주요 지점 실측 유량의 수리특성 및 불확실도 평가
신경용 ( Kyung Yong Shin ),김정애 ( Jung Ae Kim ),이상원 ( Sang Won Lee ),최경완 ( Kyung Wan Choi ),구동회 ( Dong Hoi Gu ),김지호 ( Ji Ho Kim ),황문영 ( Moon Young Hwang ),방규철 ( Kyu Chul Bang ),양형재 ( Hyung Jae Yang ),이형진 한국물환경학회(구 한국수질보전학회) 2013 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2013 No.-
부하지속곡선을 이용한 중랑천의 유량 조건별 수질특성 평가
최경완,신경용,이형진,전상호,Choi, Kyung-Wan,Shin, Kyung-Yong,Lee, Hyung-Jin,Jun, Sang-Ho 한국환경보건학회 2012 한국환경보건학회지 Vol.38 No.5
Objective: The objective of this study was to suggest a method through which load duration curve was used to assess the achievement of water quality targets in accordance with the criteria for pollutant load depending on flow rate variation. Methods: The stage-discharge curve and flow duration curve of Jungnang Stream were deduced. Using water quality targets and measurement of the stream, the flow duration curve was also drawn. Based on these, the feasibility of achievement of water quality targets in respect to flow rate was assessed. Results: In terms of the load duration curve of the stream, it was observed that excess of criteria for concentrations of $BOD_5$, $COD_{Mn}$ and SS frequently occurred. On the other hand, when the flow rate was low, the concentrations of T-N and T-P exceeded the criteria. Conclusions: Through the load duration curve, the overall water quality of Jungnang Stream was understood. When the flow rate is high, management of point source of $BOD_5$, $COD_{Mn}$ and SS is needed to achieve water quality targets for Jungnang Stream. On the other hand, when the flow rate is low, the management of non-point source T-N and T-P is necessary to attain the water quality goal.