Table 2.

First five covariate combinations with the highest predictive ability (i.e. lowest logscore) for restricted geostatistical regression (RGR), geostatistical regression (GR) and land-use regression (LUR) models.

Pollutant	Model	Covariates	Logscore
PM10	RGR	TCD + IMP + DEM + LST + SHUM + WS + DISS	2.68271
		TCD + IMP + DEM + NTL + LST + SHUM + WS	2.68307
		TCD + IMP + DEM + LST + SHUM + DISS	2.68355
		IMP + DEM + LST + SHUM + WS + DISS	2.68412
		IMP + DEM + NTL + LST + SHUM + WS	2.68423
	GR	TCD + IMP + DEM + NTL + NDV I + SHUM + PREC + LC	2.66186
		IMP + DEM + NTL + NDV I + SHUM + PREC + LC	2.66190
		TCD + IMP + DEM + NTL + NDV I + RD + SHUM + PREC	2.66207
		IMP + DEM + NTL + NDV I + RD + SHUM + PREC + LC	2.66208
		TCD + IMP + DEM + NTL + NDV I + SHUM + PREC + WS + LC	2.66215
	LUR	AOD+IMP +ESM +DEM +NTL+LST +NDV I +SHUM +PREC+WS+DISS+DISR+LC	3.07056
		AOD+IMP +ESM +DEM +NTL+LST +NDV I +SHUM +PREC +DISS +DISR+LC	3.07066
		AOD+IMP +ESM +DEM +NTL+LST +NDV I +SHUM +WS +DISS +DISR+LC	3.07067
		AOD+IMP +ESM +DEM +NTL+LST +NDV I+RD+SHUM +PREC+WS+DISS+DISR+LC	3.07071
		AOD+ESM +DEM +NTL+LST +NDV I +SHUM +PREC +WS +DISS +DISR+LC	3.07077
PM2.5	RGR	IMP + DEM + LST + SHUM + WS + DISS	2.27595
		IMP + DEM + LST + WS + DISS	2.27803
		IMP + DEM + LST + SHUM + DISS	2.28041
		IMP + DEM + LST + DISS	2.28149
		IMP + DEM + NTL + LST + SHUM + WS + DISS	2.28541
	GR	IMP + ESM + DEM + NTL + WS + DISS	2.27044
		IMP + ESM + DEM + NTL + LST + WS + DISS	2.27049
		IMP + DEM + NTL + LST + WS + DISS	2.27070
		IMP + DEM + NTL + WS + DISS	2.27071
		IMP + ESM + DEM + NTL + NDV I + WS + DISS	2.27090
	LUR	AOD+ESM +DEM +NTL+LST +NDV I +RD+SHUM +PREC +DISS +DISR+LC	2.74321
		AOD+IMP +ESM +DEM +NTL+LST +NDV I +RD+SHUM +PREC +DISS+DISR+LC	2.74326
		AOD+IMP +DEM +NTL+LST +NDV I +RD+SHUM +PREC +DISS +DISR+LC	2.74340
		AOD+TCD+IMP +ESM +DEM +NTL+LST +NDV I+RD+SHUM +PREC+DISS+DISR+LC	2.74376
		AOD+TCD+IMP +DEM +NTL+LST +NDV I +RD+SHUM +PREC +DISS+DISR+LC	2.74388