Air quality in Delta
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
3.5 µg/m³
WHO guideline 15
PM10
12.4 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
4:00 PM
💨
PM2.5 3.5 µg/m³
41Good
5:00 PM
💨
PM2.5 3.5 µg/m³
40Good
6:00 PM
💨
PM2.5 3.7 µg/m³
40Good
7:00 PM
💨
PM2.5 3.2 µg/m³
39Good
8:00 PM
💨
PM2.5 3.3 µg/m³
38Good
9:00 PM
💨
PM2.5 3.5 µg/m³
35Good
10:00 PM
💨
PM2.5 3.6 µg/m³
31Good
11:00 PM
💨
PM2.5 3.6 µg/m³
25Good
12:00 AM
💨
PM2.5 3.6 µg/m³
21Good
1:00 AM
💨
PM2.5 3.5 µg/m³
20Good
2:00 AM
💨
PM2.5 4.1 µg/m³
20Good
3:00 AM
💨
PM2.5 5.7 µg/m³
24Good
Next few days
daily max · US EPA AQI
Wed
💨
Good · UV Very high
42
Thu
💨
Good · UV Very high
45
Fri
💨
Good · UV Very high
46
Sat
💨
Moderate · UV Very high
80
Sun
💨
Good · UV Very high
33