한국환경농학회지 (Korean Journal of Environmental Agriculture)
- 제1권1호
- /
- Pages.31-38
- /
- 1982
- /
- 1225-3537(pISSN)
- /
- 2233-4173(eISSN)
낙동강(洛東江) 중류수계(中流水系)의 수질조사(水質調査) 연구(硏究)$(1978{\sim}80$ 년(年))
Studies on the Water Quality along the Midstream of Nakdong River in $1978{\sim}80$
- Choi, Eon-Ho (Department of Food Science, Seoul Women's University) ;
- Lee, Su-Rae (Department of Food & Nutrition, Ewha Women's University)
- 발행 : 1982.06.30
초록
The water quality at the Nakdong River stream was surveyed for 3 years from 1978 to 1980 at quarterly intervals of January, April, June and October at 12 sites along the main stream from Sangju to Imhaejin and at 2 sites of Geumho and Nam River tributaries. The overall results are summarized as follows: 1) The levels of dissolved oxygen in the Geumho River tributary on the basis of three-year average were 0.7 ppm in January, 1.3 ppm in April, 4.0 ppm in July and 0.8 ppm in October. BOD concentrations in the same period were 91 ppm in January, 37 ppm in April, 6 ppm in July and 24 ppm in October. The water of Geumho River was so highly contaminated that the water seems to be unsuitable for any type of water use. 2) The relatively clean water in the upstream of the main Nakdong River was rapidly polluted by the highly contaminated water of Geumho tributary. That is, dissolved oxygen and BOD at Hwawon site right after junction of the tributary were 10.4, 8.8 ppm in January, 5.8, 6.5 ppm in April, 6.3, 3.2 ppm in July and 7.0, 5.3 ppm in October, respectively. The values of turbidity, ammoniacal nitrogen and electrical conductivity were also observed to be quite high.
키워드