Tab. 1 Parameters of PM10 maps

Linear regression model + interpolation of residuals Annual average 36th highest daily average
rural areas urban background traffic rural areas urban background traffic
c (constant) -1.9 1.5   -13.1 2.2  
a1 (model CHIMERE) 1.31 1.27   1.74 1.36  
a2 (model SYMOS) 7.24     11.64    
a3 (altitude) -0.0091     -0.0127    
range [km] 90 20 120 140 20 5
nugget 4 8 16 29 45 39
partial sill 0 14 0 0 48 34
weight IDW 1 1 1 1 1 1
RMSE [µg.m-3] 2.4 4.8 4.7 6.2 9.3 9.7
relat. RMSE [%] 11 18 16 15 19 20

 

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