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KMID : 1024520030120090987
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Journal of the Environmental Sciences
2003 Volume.12 No. 9 p.987 ~ p.996
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On the Meteorological Influence on the Automobile Air Pollution in Daegu
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Kim Hae-Dong
Park Myoung-Hee
Lee Jeong-Young
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Abstract
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In this study, we analyzed the relationship between the time-variation trend of air pollution concentration index and the meteorological conditions with CO(carbon monoxide) concentration and meteorological observation data in high-CO episode days. CO is a representative automobile air pollutant. The results are as follows; 1. Most of the high-CO episode days within 30 classes appeared in winter season. 2. Most of them appeared under the surface weather conditions with east-west high-pressure system. The surface winds in this high-pressure area were very light. 3. The high-CO episode days were due to unusual accumulation within urban atmosphere in the morning. 4. The Atmospheric stabilities were more stable, and then the wind-ventilation conditions were worse than yearly mean atmospheric condition in Daegu.
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KEYWORD
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Air pollution concentration index, Winter season, Wind-ventilation condition
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