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KMID : 1024520030120030287
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Journal of the Environmental Sciences
2003 Volume.12 No. 3 p.287 ~ p.297
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Water Quality and Pollutions of River waters in Gwangju City
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Oh Kang-Ho
Koh Young-Koo
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Abstract
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To investigate water quality and pollution states of rivers in Gwangju city, total of 30 water samples were taken from the main stream of Yeongsan river, Hwangryong river and Gwangju stream in dry and flood seasons. Physico-chemical characteristics of above streams according to pH-Eh and Piper’s diagrams we, typically, assigned to natural river water. In the streams, BOD, COD, T-N and T-P indicating water quality mostly increase toward downstream. Notably, water qualities in area near connection between the Gwangju stream and the main stream of Yeongsan river are polluted over V level in rivers and lakes water quality standard. The pollutions are influenced by lift and agricultural foul waters from Gwangju City and farming areas around upstream branches of the Yeongsan river, reasonably. Besides, heavy metals are below the standard in those streams. So, it is considered that the streams are polluted by not industrial but life/agricultural foul waters.
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KEYWORD
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Gwangju city, River water, Water quality, Pollution, Gwangju stream
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