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@article{ART001058069},
author={이요상 and 신현상 and 이혜숙 and Jae Chung Park},
title={Analysis of Origin Matter of Blackish Water in Dam Reservoir During Winter},
journal={Journal of Environmental Impact Assessment},
issn={1225-7184},
year={2007},
volume={16},
number={1},
pages={69-77}

TY - JOUR
AU - 이요상
AU - 신현상
AU - 이혜숙
AU - Jae Chung Park
TI - Analysis of Origin Matter of Blackish Water in Dam Reservoir During Winter
JO - Journal of Environmental Impact Assessment
PY - 2007
VL - 16
IS - 1
PB - Korean Society Of Environmental Impact Assessment
SP - 69
EP - 77
SN - 1225-7184
AB - This study has been conducted to assess blackish-water phenomena in Dam reservoir. Tosearching for the reason, we survey physical changes in reservoir and analyze metal andorganic content in particulate materials and water.The blackish-water phenomena in lake A are occurred with turbidity increases in turnoverseason irregularly. It was reported on 6 Jan. 2005 weakly and the water column mixed with35~40m depth and water temperature shows 7˚C. The turbidity of AD and AM site increasedup to 20NTU. Especially, AN site shows 27NTU, such a result makes that Dam managerconclude it to blackish-water phenomena. The results of sequential extraction analysis showthat over 80% of Al, Cr and Fe is existed in residual form in sediment. On the other hand, themost part of Mn shows exchangeable and carbonates form, which have a good possibility ofrelease to water column. Mn contents in pore waters of the sediment samples are also found tobe ~4 times higher than Fe contents. The metal contents in pore water of different dam sites arein order of AN (Fe: 9.98, Mn: 40.6) > AD(8.33, 37.5) > DD(1.91, 2.55).According to the results of extracted organic materials from sediment, humic substances isoccupied with over 85% in total organic carbon including 23~45% of humic acid (HA) and0.9~8.5% of fulvic acid (FA). However, HA content in pore water is not detectable while FAcontents, acid-soluble humic fractions is higher than that of sediment(10~15%). whichindicating that FA is a main humic components affecting water color. The color unit per DOC ofFA in pore waters of different dam sites are found to be higher in lake A than lake D. From the results, it could be suggested that blackish-water phenomena of lake A are mainly arise from higher concentration of Mn and water soluble organic fractions (e.g., FA) released from sediments as well as the strength of turnover in Dam reservoir.
KW - blackish-water;physical change;metal content;organic content
DO -
UR -
ER -

이요상, 신현상, 이혜숙 and Jae Chung Park. (2007). Analysis of Origin Matter of Blackish Water in Dam Reservoir During Winter. Journal of Environmental Impact Assessment, 16(1), 69-77.

이요상, 신현상, 이혜숙 and Jae Chung Park. 2007, "Analysis of Origin Matter of Blackish Water in Dam Reservoir During Winter", Journal of Environmental Impact Assessment, vol.16, no.1 pp.69-77.

이요상, 신현상, 이혜숙, Jae Chung Park "Analysis of Origin Matter of Blackish Water in Dam Reservoir During Winter" Journal of Environmental Impact Assessment 16.1 pp.69-77 (2007) : 69.

이요상, 신현상, 이혜숙, Jae Chung Park. Analysis of Origin Matter of Blackish Water in Dam Reservoir During Winter. 2007; 16(1), 69-77.

이요상, 신현상, 이혜숙 and Jae Chung Park. "Analysis of Origin Matter of Blackish Water in Dam Reservoir During Winter" Journal of Environmental Impact Assessment 16, no.1 (2007) : 69-77.

이요상; 신현상; 이혜숙; Jae Chung Park. Analysis of Origin Matter of Blackish Water in Dam Reservoir During Winter. Journal of Environmental Impact Assessment, 16(1), 69-77.

이요상; 신현상; 이혜숙; Jae Chung Park. Analysis of Origin Matter of Blackish Water in Dam Reservoir During Winter. Journal of Environmental Impact Assessment. 2007; 16(1) 69-77.

이요상, 신현상, 이혜숙, Jae Chung Park. Analysis of Origin Matter of Blackish Water in Dam Reservoir During Winter. 2007; 16(1), 69-77.

이요상, 신현상, 이혜숙 and Jae Chung Park. "Analysis of Origin Matter of Blackish Water in Dam Reservoir During Winter" Journal of Environmental Impact Assessment 16, no.1 (2007) : 69-77.