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http://dx.doi.org/10.5572/KOSAE.2008.24.1.063

Long Term Analysis of PM10 Concentration in Seoul Using KZ Filter  

Lee, Jung-Young (Department of Air Quality Research, National Institute of Environmental Research)
Kong, Boo-Joo (Global Environment Research Center, National Institute of Environmental Research)
Han, Jin-Seok (Department of Air Quality Research, National Institute of Environmental Research)
Lee, Min-Do (Department of Air Quality Research, National Institute of Environmental Research)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.24, no.1, 2008 , pp. 63-71 More about this Journal
Abstract
Local meteorological conditions exert a strong influence over day-to-day variations in air pollutant concentrations. Therefore, the meteorological fluctuations have to be removed in order for air quality planners and managers to examine underlying emissions-related trends and make better air quality management decisions for future. In this study, the meteorologically adjusted $PM_{10}$ trends in Seoul are investigated over the period $1999{\sim}2006$ using Kolmogorov-Zurbenco (KZ) filter. The result indicated that meteorologicaJ variability accounts for about 25% of $PM_{10}$ variability. Both the meteorologically adjusted and unadjusted Jong-term daily $PM_{10}$ concentrations had a significant downward trends and the difference between the meteorologically adjusted and unadjusted was small. So it was assumed that in long-term daily $PM_{10}$ changes, localized changes in emissions is more important than the changes caused by meteorological conditions.
Keywords
KZ filter; $PM_{10}$; Meteorological effect; Emission;
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