Air quality in Chino Hills
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.
PM2.5
22.5 µg/m³
WHO guideline 15
PM10
26.5 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
10:00 AM
💨
PM2.5 22.5 µg/m³
73Moderate
11:00 AM
💨
PM2.5 21.4 µg/m³
117Unhealthy for Sensitive Groups
12:00 PM
💨
PM2.5 19.7 µg/m³
147Unhealthy for Sensitive Groups
1:00 PM
💨
PM2.5 17.8 µg/m³
158Unhealthy
2:00 PM
💨
PM2.5 16.5 µg/m³
163Unhealthy
3:00 PM
💨
PM2.5 16.2 µg/m³
163Unhealthy
4:00 PM
💨
PM2.5 16.8 µg/m³
157Unhealthy
5:00 PM
💨
PM2.5 18.9 µg/m³
149Unhealthy for Sensitive Groups
6:00 PM
💨
PM2.5 21.4 µg/m³
135Unhealthy for Sensitive Groups
7:00 PM
💨
PM2.5 23.9 µg/m³
117Unhealthy for Sensitive Groups
8:00 PM
💨
PM2.5 26.3 µg/m³
96Moderate
9:00 PM
💨
PM2.5 27.9 µg/m³
84Moderate
Next few days
daily max · US EPA AQI
Thu
💨
Unhealthy · UV Very high
163
Fri
💨
Unhealthy for Sensitive Groups · UV Very high
147
Sat
💨
Unhealthy for Sensitive Groups · UV Very high
145
Sun
💨
Moderate · UV Very high
93
Mon
💨
Moderate · UV Very high
82