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Coliform Pollution Status of Nakdong River and Tributaries
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 Title & Authors
Coliform Pollution Status of Nakdong River and Tributaries
Lee, Hae-Jin; Park, Hae-Kyung; Lee, Jae Hak; Park, A Reum; Cheon, Se-Uk;
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 Abstract
The aim of this study was to analyze spatial and temporal patterns of bacterial pollution levels and the relationship between bacterial pollutants and environmental parameters at the main stream and tributaries of Nakdong River. Water quality data including total coliform and fecal coliform were compiled from a total of 50 monitoring sites (30 at the main stream and 20 at the tributaries) along with rainfall and discharge data for three consecutive years from 2012 to 2014. During the study periods, the geometric mean values of total coliforms and fecal coliforms in the main stream were 74 (22~465) CFU/100 mL and 8 (3~42) CFU/100 mL, respectively. The geometric mean values of total coliforms and fecal coliforms in the tributaries were 275 (36~5,145) CFU/100 mL and 6 (1~1,352) CFU/100 mL, respectively. High concentrations of fecal coliforms were observed at Gumi (M 10), Hyeonpung (M 19), Hapcheon (M 23), and Namji (M 25) in the main stream, whereas Gamcheon (T 6), Bakcheon (T 7), Geumho-gang (T 8), and Gyeseongcheon (T 16) were identified as pollution hot spots in the tributaries. Although bacterial pollution levels showed complex behavior across monitoring sites and time, the highest coliform concentrations were routinely observed in the monsoon season between July and September of each year, indicating that the pollution levels were strongly dependent on precipitation in addition to other physiochemical parameters. Statistically significant correlations were found between fecal coliform concentrations and precipitation (r
 Keywords
Coliform pollution;Environmental factors;Nakdong River;Precipitation;
 Language
Korean
 Cited by
1.
관리 우선순위 선정을 위한 낙동강 지류·지천 지점의 수질 오염 특성 분석,임태효;나승민;신상민;손영규;

대한환경공학회지, 2016. vol.38. 10, pp.558-565 crossref(new window)
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