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KMID : 0353019710080020276
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Korean Journal of Public Health
1971 Volume.8 No. 2 p.276 ~ p.280
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A Study Sulfur Dioxide and Nitrogen Dioxide in the Air in the Seoul Area
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Abstract
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A study was carried out to find the concentration of sulfur dioxide and nitrogen dioxide in the Seoul metropolitan erea where the air pollution had been known to be heavy, from january 1971 to April 1971.
Sulfur dioxide was measured by p-Rosaniline formaline method and nitrogen dioxide by Sartzman method at residential, cross-roads, and industrial districts. And also the source of pollution was evaluated with recent years´ consumptions of coal and oil.
The results are summarized as follows:
1. The mean concentration of sulfur dioxide for four months was 0.047ppm with the range of 0.026ppm at residential districts to 0.066ppm at cross-roads, and the mean concentration of nitrogen dioxide for four months was 0.401ppm with the range of 0.304ppm at residential districts to 0.476ppm at croses-roads.
2. The highest concentration of sulfurdioxide was measured at 7:00 to 9:00a.m with 0.077ppm, while the lowest at 1:00 to 3:00a.m with 0.028ppm, and the highest concentration of nitrogen dioxide was measured at 11:00 to 13:00p.m. with 0.905ppm. while the lowest at 23:00 to 1:00a.m with 0.147ppm.
3. Since 1965, the consumption rate of oil in Seoul showed rapid increase, while that of coal showed slow increase.
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