AIR POLLUTION – MONITORING MODELLING AND HEALTH

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170 Air Pollution <strong>–</strong> Monitoring, Modelling and Health Fig. 17. Regression between CAQM data and Casella Mircodust Pro data. Figure 18 showed the dispersion of PM 10 concentration in Kuala Lumpur at 3pm 1/12/2009 with the selected in-situ monitoring point. The interpolated PM 10 concentration for the selection monitoring point, Sekolah Jenis Kebangsaan (C) Chi Man, is extracted from Figure 18. The interpolated PM 10 concentration the selected point is 30.178 µg/m 3 . Then, the interpolated PM 10 concentration, data on map, compare with the in-situ monitoring PM 10 concentration. Fig. 18. Dispersion of PM 10 concentration in Kuala Lumpur at 3pm 1/12/2009.
Mapping the Spatial Distribution of Criteria Air Pollutants in Peninsular Malaysia Using Geographical Information System (GIS) 171 Equation 2, the regression between interpolated and in-situ monitoring PM 10 concentrations, formed (Figure 19). The relationship between interpolated and in-situ monitoring PM 10 concentrations is double reciprocal with the correlation coefficient 0.289: 1 0.042 0.020 (2) y x where, y is the in-situ monitoring PM 10 concentrations or the actual PM 10 concentration; then, x is the interpolated or Spatio-temporal PM 10 concentrations. Fig. 19. Regression between interpolated and in-situ monitoring PM 10 concentrations. A model is considered validate if the calculated and measured values do not differ by more than approximately a factor of 2 (Pratt et al., 2004; Weber, 1982). Table 3 show a part of the interpolated (Spatio-temporal) and in-situ monitoring (Microdust) PM 10 concentrations and have not differ by more than a factor of 2, thus, the IDW interpolation method can be used to describe the PM 10 dispersion in Kuala Lumpur. MicroDustConc.(µg/m 3 ) Spatio-temporal Conc.(µg/m 3 ) 46.206 32.190 46.176 30.303 46.179 28.833 46.229 30.178 46.304 36.872 46.272 38.280 46.584 37.103 46.205 34.538 46.179 33.101 46.182 30.574 Table 3. A part of Microdust and Spatio-temporal PM 10 concentration.
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AIR POLLUTION - MONITORING, MODELLI
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Contents Preface IX Chapter 1 Urban
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Preface This book provides a compre
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2 Air Pollution - Monitoring, Model
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AIR POLLUTION – MONITORING MODELLING AND HEALTH

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