Table 4.

Average and standard deviation for each studied pollutant for the 3 subsets (D. Pedro II Station).

	Training		Validation		Test
Pollutant	Average	Standard Deviation	Average	Standard Deviation	Average	Standard Deviation
CO [ppm]	0.30	0.15	0.62	0.40	0.50	0.36
O3[μg/m3]	65	24	81	19	59	14
NO2[μg/m3]	43	17	60	33	64	31
NO [μg/m3]	21	19	51	63	75	76
PM2.5[μg/m3]	12	4.7	20	8.8	16	7.8
PM10[μg/m3]	19	7.3	37	14	31	16