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지류하천의 유황분석을 통한 BOD<sub>5</sub> 농도변화 유형 분석
정우혁,김영일,김홍수,문은호,박상현,이상진,정상만,조병욱,최정호,Jeong, Woohyeuk,Kim, Youngil,Kim, Hongsu,Moon, Eunho,Park, Sanghyun,Yi, Sangjin,Jeong, Sangman,Cho, Byungwook,Choi, Jeongho 한국물환경학회 2011 한국물환경학회지 Vol.27 No.4
We analyzed the variations of water quality with flow regime alterations to determine the characteristics of the stream where the stream management is considerably difficult due to the high variability of the flow rates. In this study, both flow rates and water qualities were monitored at the tributaries, 34 in count, of both Geum River and Sabgyo Lake Basins. The variation of water qualities were divided into 2 types, based on their stream flow rates, known as Type I and Type II. If the water quality of a stream increases during low flow rate periods compared with high flow rate periods, it is classified as Type I; if the water quality of the stream increases during high flow rate periods compared with low flow rate periods, it falls under Type II. The analysis for the variations of water qualities, of all 43 basins, resulted to 24 basins under Type I and Nineteen 19 basins under Type II. The variations of water qualities were analyzed first by using Regression Analysis followed by Statistical Analysis. The average slope of the variations of water qualities and the slope of the standard deviations were 0.00135 and 0.00477, respectively. The Probability Distributions of both Type I and Type II basins were 61.1% and 38.9%, respectively. The basin having a probability distribution of 61.1% and is also known as Type I, increases during periods of low flow rates, due to the presence of point sources. Therefore, the basin should be enforced with stream management. Before the stream management can be implemented in all streams falling under Type II, the sources of contaminants should first be estimated. These contaminants can be classified into two parts, the first is Point source pollution and the second is Non-point source pollution, where the Non-Point source pollution can be sub-divided into two types, with storm runoff and without storm runoff.
충청남도 4대수계 주요 지류하천 수질 모니터링을 통한 유역 관리 방안
박상현 ( Sanghyun Park ),김홍수 ( Hongsu Kim ),조병욱 ( Byunguk Cho ),문은호 ( Eunho Moon ),최진하 ( Jinha Choi ) 한국물환경학회(구 한국수질보전학회) 2016 한국물환경학회지 Vol.32 No.2
This study aimed to develop a plan for effective performance of a watershed through correct identification of a river watershed by using the flowrate of the river and water quality data, which is the basis for the establishment of the water environment policy. The target river for water quality improvement was selected based on the monitoring result for 4 water systems in Chungcheongnamdo province in the recent 3 years. The result of analysis for the distribution of discharge capacity by a pollution source group for the water quality improvement target river showed that most of the target river has a high discharge capacity in the water system for living and livestock. Analysis for the density of the total discharge capacity of the whole watershed of Chungcheongnamdo indicated that the river that needs water quality improvement has high BOD concentration and high discharge load density at the point that this river is located. Thus, for efficient watershed management through selection and concentration, Chungcheongnamdo needs to improve the target river in priority. Stepwise planning is also required to establish and execute the water quality improvement in order to satisfy said target water quality, and establish the index for the water improvement rate for its evaluation.
배종환(Jong Hwan Bae),유영춘(Yung Choon Yoo),홍장희(Jang Hee Hong),문은호(Eunho L. Moon),송경식(Kyung Sik Song),이경복(Kyung Bok Lee) 한국실험동물학회 2004 Laboratory Animal Research Vol.20 No.1
A modification of a colorimetric assay was used to determine the concentration of total and individual sulfated-glycosaminoglycan (GAG) in equine synovial fluid and serum with joint disease. For the identification of enzymatic active products of the equine synovial fluid, strong anion exchange-high performance liquid chromatography (SAX-HPLC) was performed. By the action of chondroitin ABC lyase, three unsaturated disaccharides, 2-acetamide-2-deoxy-3-O-(β-D-gluco-4-enepyranosyluronic acid)-D-galactose (△Di-COS), 2-acetamide-2- deoxy-3-O-(β-D-gluco-4-enepyranosyluronic acid)-6-O-sulfo-D-galactose (△Di-C6S), and 2-acetamide-2-deoxy-3-O-(β-D-gluco-4-enepyranosyluronic acid)-4-O-sulfo-D-galactose (△Di-C4S), were produced from the equine synovial fluid. Total GAG concentration of the equine synovial fluid was 0.82± 0.24 ㎎/㎖ (mean±SD) in normal horses, but it was decreased in horses with joint disease (0.17±0.12 ㎎/㎖). The concentration of keratan sulfate (KS), chondroitin sulfate (CS), and hyaluronic acid (HA) were decreased in horses with joint disease. The concentration of serum HA of normal horses was 77.00±66.14 ㎍/㎖, but it was markedly increased in joint diseases (168.50±147.50 ㎍/㎖), There appears to be some correlation between joint inflammation and serum HA levels as determined by experimental studies of animals. Irrespective of the explanation, it is clear that measurement of the level of serum HA may provide a useful marker for monitoring the onset and progression of a number of important diseases and disorders in equine.