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KMID : 0615219800050010019
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Journal of Kwangju Health
1980 Volume.5 No. 1 p.19 ~ p.34
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Studies on the Environmental Pollution in Gwangju Area(Ⅳ) -A study on Air Pollution and Noise Level
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류일광
이치영/강영식
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Abstract
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Air pollution in Gwangju area was examined for 12 months from Jan, 1979 to Dec, 1979. The surveyed area was divided into four; Industrial, Commercial, Residential and Park area. Nine surveying sites which were representing the characteristics of each area were selected. The measuring methods were; the Lead dioxide cylinder method for Sulfur oxides, Triethanolamine plate method for Nitrogen dioxid, Deposit Gauge method for Dustfalls, and the RION noise meter for Noise Level.
The results we obtained are as follows.
1. Sulfuroxides
The mean of Sulfur oxides was 3.530㎎ SO₃/day/100㎠/PbO₂, ranging from 2.206 to 4.94㎎SO₃/day/100㎠. The mean value of Sulfur oxides was 3.539㎎-SO₃/day/100㎠PbO₂ for Residential area, 4.217㎎SO₃/day/100㎠PbO₂ for Commercial area, 3.724㎎SO₃/day/100㎠PbO₂ for Industrial area, and 2.643 ㎎SO₃/day/100㎠PbO₂ for Park area, respectively.
2. Nitrogen Dioxides
The mean value of Nitrogen dioxides .was 41.388㎍NO₂/day/100㎠, ranging from 25.275 to 59.753 ㎍ NO₂/day/100㎠. At Commercial area whene the value was the highest, the range of Nitrogen dioxides level was 17.31∼116.87㎍NO₂/day/100㎠.
3. Dustfalls.
The mean value of Dustfalls was 40.60 ton/㎢/month, ranging from 24.29∼56.86 ton/㎢/month. The Dustfalls for Residential area was higher than any other area.
4. Noise
The mean value of noise level was 63 dB(A), ranging from 40 to 79 dB(A).
The Noise of 70.5 dB(A), at Commercial area was higher than any other area.
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