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
13.3 µg/m³
WHO guideline 15
PM10
13.5 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
4:00 AM
💨
PM2.5 13.3 µg/m³
54Moderate
5:00 AM
💨
PM2.5 12.5 µg/m³
52Moderate
6:00 AM
💨
PM2.5 11.9 µg/m³
50Good
7:00 AM
💨
PM2.5 11.6 µg/m³
48Good
8:00 AM
💨
PM2.5 11.8 µg/m³
49Good
9:00 AM
💨
PM2.5 12.1 µg/m³
51Moderate
10:00 AM
💨
PM2.5 10.8 µg/m³
45Good
11:00 AM
💨
PM2.5 9.3 µg/m³
51Moderate
12:00 PM
💨
PM2.5 7.8 µg/m³
90Moderate
1:00 PM
💨
PM2.5 5.4 µg/m³
101Unhealthy for Sensitive Groups
2:00 PM
💨
PM2.5 4.3 µg/m³
103Unhealthy for Sensitive Groups
3:00 PM
💨
PM2.5 4.3 µg/m³
101Unhealthy for Sensitive Groups
Next few days
daily max · US EPA AQI
Mon
💨
Unhealthy for Sensitive Groups · UV Very high
106
Tue
💨
Moderate · UV Very high
96
Wed
💨
Moderate · UV High
70
Thu
💨
Moderate · UV Very high
63
Fri
💨
Moderate · UV Moderate
52