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
2.6 µg/m³
WHO guideline 15
PM10
2.7 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
1:00 AM
💨
PM2.5 2.6 µg/m³
25Good
2:00 AM
💨
PM2.5 2.8 µg/m³
24Good
3:00 AM
💨
PM2.5 3.2 µg/m³
22Good
4:00 AM
💨
PM2.5 3.9 µg/m³
21Good
5:00 AM
💨
PM2.5 4.7 µg/m³
20Good
6:00 AM
💨
PM2.5 5.3 µg/m³
22Good
7:00 AM
💨
PM2.5 5.2 µg/m³
22Good
8:00 AM
💨
PM2.5 4.9 µg/m³
24Good
9:00 AM
💨
PM2.5 4.5 µg/m³
30Good
10:00 AM
💨
PM2.5 4.5 µg/m³
36Good
11:00 AM
💨
PM2.5 4.4 µg/m³
39Good
12:00 PM
💨
PM2.5 4.4 µg/m³
42Good
Next few days
daily max · US EPA AQI
Thu
💨
Moderate · UV High
68
Fri
💨
Moderate · UV High
52
Sun
💨
Good · UV Moderate
20