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KMID : 0615219830080010001
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Journal of Kwangju Health
1983 Volume.8 No. 1 p.1 ~ p.9
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Studies on the environmental pollution in Gwangju area -A Study on water pollution on Gwangju river
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류일광
이치영/강영식
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Abstract
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Water pollution of Gwangju river was examined for five months from June 30, 1982 to October 30, 1982.
For checking the water pollution, 11 sampling positions were selected; 5 from main river and 6 from branch streams. We assumed that the water pollution of Gwangju river was dus to the organic materials, which cams from the domestic sewage. The apparatus test were; pH meter (orion 301), temperatur, DO meter (Delta 1010), spectrophotometer (Hitach 181). The results we obtained are as follows.
1. The average range for mid-stream (sampling position 3,5 and 6 of Gwangju river) was 3.38-4.01 ppm of Dissolved oxygen(DO), 66.0-87.5 ppm of Biochemical oxygen demand(BOD), 57.64-71.18 ppm of chemical oxygen demand(COD), 55.11 -69.81 ppm of suspended solid(SS), 2.96-3.72 ppm of NH₄N and 71.44-108.48 ppm of Cl^(-)
2. The average range for upper-stream (sampling position 2 of Gwangju river) was 4.00 ppm of DO, 61.64 ppm of BOD, 58.08 Ppm of COD, 50.11 ppm of SS, 2.91 ppm of NH₄-N and 24.42 ppm of CL^(-).
3. The average range for down-stream (sampling position 10 of Gwangju river) was 2.45 ppm of DO, 100.32 ppm of BOD, 84.44 ppm of COD, 90.65 ppm of SS, 2.01 ppm of NH₄-N and 83.82 Ppm of CL^(-).
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