Tab. 4 Parameters of benzo[a]pyrene map

Linear regression model + interpolation of residuals BaP
annual average
rural areas urban background
c (constant) -0.7 -2.9
a1 (EMEP) 1.6 1.5
a2 (rural map of PM10) 0.0  
a3 (urban map of PM10)   0.1
a4 (SYMOS – only REZZO 3)   13.7
range [km] 100 30
nugget 0 0
partial sill 0.004 0.30
RMSE [µg.m-3] > 0.5 0.5
relat. RMSE [%] > 80 27

 

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