Table S1.

List of emission levels/ICQA for different pollutants

ICQA	O3 μg/m3 1 h	PM10 μg/m3 24 h	CO mg/m3 8 h	SO2 μg/m3 1 h	NO2 μg/m3 1 h
100	0	0	0	0	0
50	110	35	6	200	90
0	180	50	10	350	200
−100	400	350	17	1.500	1.130
−200	800	420	34	3.000	2.260
−300	990	500	46	3.750	3.000
−400	1.200	600	58	4.900	3.750

Abbreviations: ICQA, Catalonian Air Quality Index; h, hours.