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KMID : 1024520040130010027
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Journal of the Environmental Sciences
2004 Volume.13 No. 1 p.27 ~ p.36
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Evaluation of Temporal and Spatial PM10 Characteristics for Pollution Management in Daegu area
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Jo Wan-Kuen
Kwon Ki-Dong
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Abstract
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Present study analyzed the temporal and spatial characteristics of PM10 pollution in Metropolitan Daegu area based on air pollution monitoring station data and measurements of PM10 concentrations in background area in order to provide essential data for efficient PM10 pollution management. The significant variation of spatial and temporal PM10 concentrations in Daegu area was observed during the study years. The highest maximum PM10 concentration(332 /㎥), average concentration(88 /㎥) and frequency exceeding PM10 daily standard(150 /㎥) were all observed in Namsandong located near a major roadway. The hourly and weekly variations of PM10 concentrations had different pattern for the measurement sites. The monthly and seasonal concentrations exhibited a notable characteristic： the maximum concentration was obtained in spring season, most likely due to Yellow sand effects. Furthermore, this temporal variation of PM10 pollution varied with study site. Meanwhile, the PM10 values measured at the monitoring site, Manchondong, were comparable with those of a control site. The average PM10 concentration ranged from 23 /㎥ to 115 /㎥ with a mean value of 53 /㎥ in the former site and from 22 /㎥ to 91 /㎥ with a mean value of 45 /㎥ in the latter site.
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KEYWORD
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Background area, Monitoring station, PM10 management, Spatial characteristic, Temporal characteristic
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