Air quality in Philadelphia
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
5.6 µg/m³
WHO guideline 15
PM10
5.7 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
2:00 PM
💨
PM2.5 5.6 µg/m³
41 Good
3:00 PM
💨
PM2.5 5.8 µg/m³
42 Good
4:00 PM
💨
PM2.5 6 µg/m³
41 Good
5:00 PM
💨
PM2.5 7.3 µg/m³
38 Good
6:00 PM
💨
PM2.5 10.6 µg/m³
44 Good
7:00 PM
💨
PM2.5 14.1 µg/m³
55 Moderate
8:00 PM
💨
PM2.5 14.1 µg/m³
55 Moderate
9:00 PM
💨
PM2.5 12 µg/m³
50 Good
10:00 PM
💨
PM2.5 9.7 µg/m³
40 Good
11:00 PM
💨
PM2.5 8.1 µg/m³
34 Good
12:00 AM
💨
PM2.5 7 µg/m³
29 Good
1:00 AM
💨
PM2.5 6.3 µg/m³
26 Good
Next few days daily max · US EPA AQI
Tue
💨
Moderate · UV Moderate
76
Wed
💨
Unhealthy for Sensitive Groups · UV Moderate
138
Thu
💨
Unhealthy for Sensitive Groups · UV Moderate
138
Fri
💨
Moderate · UV Moderate
78
Sat
💨
Moderate · UV Moderate
67
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Precip NEXRAD · NOAA Temp Wind Clouds Terrain