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Eui Jung Han 1 Article
Particle Size Distribution of Suspended Particulates in the Atmosphere of a Seoul Residential Area.
Eui Jung Han, Yong Chung, Sook Pyo Kwon
Korean J Prev Med. 1986;19(1):130-136.
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The particle size of suspended particulates was measured by a Andersen air sampler from Mar. 1982 to Feb. 1984 in a part of Seoul. It was concluded as follows: 1) The arithmetic concentration of suspended particulates was 147.8 microgram/m3 in Spring, 136.9 in Summer, 131.9 in Autumn and 158.1 in Winter respectively. 2) The cumulative distribution of suspended particulates size in logarithmic diagram showed similar to normal log distribution. 3) The atmospheric particulate matters showed a bimodal size distribution on the base of unit particle concentrations, which divided at approximately 2 micrometer in the diameter. 4) While the fine particulates less than 2.1 micrometer was 35.4-45.0%, the coarse particulates was 55.0-64.5%. 5) The higher the concentration of suspended particulates, the more increased the ratio of fine particulates. The higher the concentration of suspended particulates, the lower median size of suspended particulate as well. 6) The respirable dust particulates less than 4.7 micrometer was 52.2-62.9% in seasonal average through the 2 year samples. With the above result, air pollution concerned with public health could be evaluated and the control measures also are suggested.
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JPMPH : Journal of Preventive Medicine and Public Health
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