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Fontana, CA Air Quality

← Fontana

Air quality in Fontana

The US Air Quality Index (EPA) grades air from 0 to 500 using fine particles (PM2.5/PM10), ozone and nitrogen dioxide. 0-50 is Good, 51-100 Moderate, 101-150 Unhealthy for Sensitive Groups, and anything higher affects everyone.

US AQI · EPA
95
Moderate
PM2.5
17.5 µg/m³
WHO guideline 15
PM10
21.4 µg/m³
WHO guideline 45
NO₂ · O₃
7 · 134
µg/m³

Hour by hour (12h)

US EPA AQI
12:00 PM 💨 PM2.5 17.5 µg/m³
95Moderate
1:00 PM 💨 PM2.5 16.6 µg/m³
119Unhealthy for Sensitive Groups
2:00 PM 💨 PM2.5 16.3 µg/m³
136Unhealthy for Sensitive Groups
3:00 PM 💨 PM2.5 16.3 µg/m³
140Unhealthy for Sensitive Groups
4:00 PM 💨 PM2.5 16.6 µg/m³
133Unhealthy for Sensitive Groups
5:00 PM 💨 PM2.5 17.2 µg/m³
120Unhealthy for Sensitive Groups
6:00 PM 💨 PM2.5 18.7 µg/m³
103Unhealthy for Sensitive Groups
7:00 PM 💨 PM2.5 20.4 µg/m³
83Moderate
8:00 PM 💨 PM2.5 20.6 µg/m³
69Moderate
9:00 PM 💨 PM2.5 20.4 µg/m³
68Moderate
10:00 PM 💨 PM2.5 20.2 µg/m³
68Moderate
11:00 PM 💨 PM2.5 20.1 µg/m³
68Moderate

Next few days

daily max · US EPA AQI
Thu 💨 Unhealthy for Sensitive Groups · UV Very high
140
Fri 💨 Unhealthy for Sensitive Groups · UV Very high
126
Sat 💨 Unhealthy · UV Very high
158
Sun 💨 Unhealthy for Sensitive Groups · UV Very high
128
Mon 💨 Moderate · UV Very high
82
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Updated: 12:01 PM