Air quality in Concord
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
27.9 µg/m³
WHO guideline 15
PM10
28.3 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
1:00 AM
💨
PM2.5 27.9 µg/m³
84Moderate
2:00 AM
💨
PM2.5 27 µg/m³
82Moderate
3:00 AM
💨
PM2.5 25.3 µg/m³
79Moderate
4:00 AM
💨
PM2.5 23.8 µg/m³
76Moderate
5:00 AM
💨
PM2.5 22.4 µg/m³
73Moderate
6:00 AM
💨
PM2.5 20.5 µg/m³
69Moderate
7:00 AM
💨
PM2.5 19.2 µg/m³
66Moderate
8:00 AM
💨
PM2.5 17.4 µg/m³
62Moderate
9:00 AM
💨
PM2.5 17.1 µg/m³
62Moderate
10:00 AM
💨
PM2.5 14.6 µg/m³
56Moderate
11:00 AM
💨
PM2.5 12.2 µg/m³
51Moderate
12:00 PM
💨
PM2.5 12 µg/m³
51Moderate
Next few days
daily max · US EPA AQI
Mon
💨
Unhealthy for Sensitive Groups · UV High
106
Tue
💨
Unhealthy for Sensitive Groups · UV High
103
Wed
💨
Unhealthy for Sensitive Groups · UV Very high
135
Thu
💨
Moderate · UV Very high
98
Fri
💨
Unhealthy for Sensitive Groups · UV Low
120