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Air quality · United States

Arizona Air Quality (AQI) Now

34 Fair
European Air Quality Index
PM2.5
2.7µg/m³WHO limit 15
PM10
3.0µg/m³WHO limit 45
NO₂
0.7µg/m³
O₃
87µg/m³
Desert dust
0µg/m³
UV index
0.2
US AQI
37

Updated: · Source: Copernicus CAMS · Open-Meteo

Air quality in Arizona is fair right now: European Air Quality Index 34. Fine particulate matter (PM2.5) is 2.7 µg/m³, below the WHO guideline. Fine for outdoor activities; very sensitive people may reduce prolonged strenuous exercise. Pollution is expected to peak around 21:00 over the next 48 hours (index 39, fair).

Arizona 48-hour air quality forecast

21:00: 2221:0022:00: 1823:00: 1600:00: 1501:00: 1502:00: 2003:00: 2303:0004:00: 2605:00: 2806:00: 2907:00: 2908:00: 2909:00: 2109:0010:00: 2611:00: 3312:00: 3713:00: 3814:00: 3815:00: 3715:0016:00: 3517:00: 3118:00: 2819:00: 3320:00: 3721:00: 3921:0022:00: 3923:00: 3700:00: 3401:00: 3102:00: 2803:00: 2503:0004:00: 2205:00: 2006:00: 2107:00: 2108:00: 2309:00: 2609:0010:00: 3011:00: 3212:00: 3313:00: 3214:00: 3115:00: 3115:0016:00: 3117:00: 2918:00: 2619:00: 2220:00: 19

Air quality near Arizona

Cleanest to most polluted.

Frequently asked questions

Is Arizona polluted today?
Air quality in Arizona is fair right now: European Air Quality Index 34. Fine for outdoor activities; very sensitive people may reduce prolonged strenuous exercise.
Is it safe to exercise outdoors in Arizona today?
Yes, air quality is fair right now; fine for outdoor exercise.
How is the air quality index calculated?
The European Air Quality Index is set by the worst of PM2.5, PM10, nitrogen dioxide, ozone and sulphur dioxide: 0–20 good, 20–40 fair, 40–60 moderate, 60–80 poor, 80–100 very poor, above 100 extremely poor.

Values are Copernicus Atmosphere Monitoring Service (CAMS) model forecasts and may differ from local monitoring stations.

Arizona air quality: details

Pollutants and recent days

Nitrogen dioxide (NO₂) is 0.7 µg/m³ and ozone (O₃) 87 µg/m³; WHO guideline values are 25 (24 h) and 100 µg/m³ (8 h).