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Evaluation of Contamination Level of the Sediments from Chusori and Chudong Areas in Daechung Reservoir
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 Title & Authors
Evaluation of Contamination Level of the Sediments from Chusori and Chudong Areas in Daechung Reservoir
Oh, Kyoung-Hee; Cho, Young-Cheol;
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 Abstract
In order to analyze the contamination level of sediment samples taken from Chusori and Chudong areas in Daechung Reservoir, the particle size and concentrations of organics and nutrients were analyzed and phosphorus fractionation analysis was conducted. The average fraction of silt-sized particles was 92% in the sediments taken from Chudong area and Chusori area at the site adjacent to main current, which was higher than that from the upper Chusori area. The concentrations of total phosphorus in the sediments at Chusori and Chudong area were 999 () and 1,123 () mg/kg sediment, respectively. The fractions of autochthonous phosphorus, which can be readily eluted by change of environmental conditions, were much higher than those of allochthonous phosphorus, indicating the internal load can contribute the eutrophication in these areas. The concentrations of total nitrogen were over 5,600 mg/kg sediment in all samples, which is the guideline of Contamination Assessment of River and Lake Sediments of the Ministry of Environment, indicating the contamination level of total nitrogen is serious in the sediments. It is concluded that the countermeasures to manage the quality of sediments are required to improve the water quality in the Daechung Reservoir.
 Keywords
Daechung Reservoir;Sediment;Phosphorus Fractionation;Internal Loading;
 Language
Korean
 Cited by
1.
소옥천 하류(추소리)에서 녹조현상 경감기술의 현장 시험 적용 및 효과 비교,신재기;김영성;노준우;김종명;황순진;

생태와환경, 2016. vol.49. 4, pp.258-270 crossref(new window)
2.
대청호 추소리 수역의 퇴적물이 조류 성장에 미치는 영향,오경희;김용준;조영철;

한국물환경학회지, 2015. vol.31. 5, pp.533-542 crossref(new window)
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