Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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A Study on the Water Pollution of the Wonju Stream

原州川의 水質汚染에 관한 調査硏究

  • Park, Byoung Youn (Graduate School of Health Science and Management YonSei Univ.) ;
  • Ra, Kyu Hwan (Dept. of Health Science, Wonju Medical Coll., Yon Sei Univ.) ;
  • Ok, Chi Sang (Dept. of Health Science, Wonju Medical Coll., Yon Sei Univ.)
  • Published : 1985.04.01
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Abstract

Urban sewage and stream water in Wonju city were examined and the results were as follows: The average water quality of Wonju stream was flow 52.8m$^3$/min, BOD 21.14ppm, COD 7.06 ppm, SS 212.4ppm, Cl$^-$ 23.14ppm, O-Phosphate 1.08ppm, NH$_3$-N 1.08ppm, NO$_2$-N 2.63ppm and pH 7.48 respectively. The average water quality of urban sewage was flow 2.76m$^3$/min, BOD 112.7ppm, COD 33.6ppm, SS 374.4ppm, Cl$^-$ 46.2ppm, O-Phosphate 1.56ppm, NH$_3$-N 5.96ppm and NO$_2$-N 3.28 ppm respectively. The quality of stream water showed was 4th grade area according to environmental water quality standard. The survey showed k$_1$ 0.11day$^{-1}$, k$_2$ 0.29day$^{-1}$ and the self- purification coefficient 2.5 in average.. In calculating oxygen variation in water by Streeter-Phelp's equation the zero station exhibited in down stream.

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