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DeKalb, IL Air Quality

← DeKalb

Air quality in DeKalb

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
43
Good
PM2.5
5.2 µg/m³
WHO guideline 15
PM10
5.3 µg/m³
WHO guideline 45
NO₂ · O₃
9 · 91
µg/m³

Hour by hour (12h)

US EPA AQI
11:00 PM 💨 PM2.5 5.2 µg/m³
43Good
12:00 AM 💨 PM2.5 4.7 µg/m³
42Good
1:00 AM 💨 PM2.5 4.7 µg/m³
40Good
2:00 AM 💨 PM2.5 4.7 µg/m³
39Good
3:00 AM 💨 PM2.5 4 µg/m³
38Good
4:00 AM 💨 PM2.5 3.7 µg/m³
37Good
5:00 AM 💨 PM2.5 3.5 µg/m³
36Good
6:00 AM 💨 PM2.5 3.3 µg/m³
35Good
7:00 AM 💨 PM2.5 3.3 µg/m³
35Good
8:00 AM 💨 PM2.5 3.3 µg/m³
37Good
9:00 AM 💨 PM2.5 3.8 µg/m³
39Good
10:00 AM 💨 PM2.5 4.4 µg/m³
42Good

Next few days

daily max · US EPA AQI
Thu 💨 Moderate · UV Moderate
68
Fri 💨 Moderate · UV High
83
Sat 💨 Good · UV Moderate
47
Sun 💨 Good · UV High
41
Mon 💨 Good · UV Very high
14
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Updated: 11:47 PM