Air quality in Frederick
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
8.7 µg/m³
WHO guideline 15
PM10
8.9 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
3:00 AM
💨
PM2.5 8.7 µg/m³
36Good
4:00 AM
💨
PM2.5 9.1 µg/m³
38Good
5:00 AM
💨
PM2.5 9.4 µg/m³
39Good
6:00 AM
💨
PM2.5 9.4 µg/m³
39Good
7:00 AM
💨
PM2.5 9.1 µg/m³
38Good
8:00 AM
💨
PM2.5 9.1 µg/m³
38Good
9:00 AM
💨
PM2.5 9.3 µg/m³
39Good
10:00 AM
💨
PM2.5 9.1 µg/m³
38Good
11:00 AM
💨
PM2.5 9.1 µg/m³
40Good
12:00 PM
💨
PM2.5 9.1 µg/m³
43Good
1:00 PM
💨
PM2.5 8.6 µg/m³
43Good
2:00 PM
💨
PM2.5 7.8 µg/m³
43Good
Next few days
daily max · US EPA AQI
Wed
💨
Moderate · UV Very high
83
Thu
💨
Moderate · UV High
83
Fri
💨
Good · UV Very high
47