Air quality index (ICQA) M

Air quality index AQI. 2017
Vigilance network Towns/cities of location Maximum value Minimum value Average value
Badalona 71 13 51
Barcelona 98 -117 52
Constantí 87 -190 51
Granollers 75 -48 46
L'Hospitalet de Llobregat 84 -66 55
Igualada 96 24 60
Lleida 85 -100 50
Manlleu 77 -48 46
Manresa 75 -18 52
Martorell 85 24 61
Mataró 72 0 52
Mollet del Vallès 86 21 51
Montcada i Reixac 72 -72 52
Reus 98 -14 56
Sabadell 86 -24 55
Sant Adrià de Besòs 72 -36 50
Sant Andreu de la Barca 91 30 59
Sant Celoni 84 0 58
Sant Cugat del Vallès 81 -25 57
Sant Vicenç dels Horts 73 -22 50
Santa Coloma de Gramenet 91 34 62
Tarragona 100 -48 66
Terrassa 76 -22 48
Vic 92 -35 50
Vilafranca del Penedès 78 10 55
Vilanova i la Geltrú 88 7 58
Vila-seca 91 -6 55
Source: Ministry of Territory and Sustainability.
AQI This index is produced using data for the main atmospheric contaminants: SO2, NO2, O3, CO, PM10 and benzene. It can take values between -100 (poorest quality) and 100 (best quality).
Note: Barcelona's AQI is the mean between the Eixample, Ciutadella, Gràcia, Palau Reial, Poblenou, Sants and Vall d'Hebron districts. Tarragona's AQI is the mean between the Bonavista, Parc de la Ciutat, Universitat Laboral and Sant Salvador districts.

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