Air quality in Chalfont
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
16.4 µg/m³
WHO guideline 15
PM10
17.2 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
6:00 AM
💨
PM2.5 16.4 µg/m³
60Moderate
7:00 AM
💨
PM2.5 16.5 µg/m³
60Moderate
8:00 AM
💨
PM2.5 15.1 µg/m³
57Moderate
9:00 AM
💨
PM2.5 13.2 µg/m³
53Moderate
10:00 AM
💨
PM2.5 11.1 µg/m³
46Good
11:00 AM
💨
PM2.5 10.9 µg/m³
46Good
12:00 PM
💨
PM2.5 11.4 µg/m³
56Moderate
1:00 PM
💨
PM2.5 12.1 µg/m³
73Moderate
2:00 PM
💨
PM2.5 13 µg/m³
88Moderate
3:00 PM
💨
PM2.5 13.8 µg/m³
101Unhealthy for Sensitive Groups
4:00 PM
💨
PM2.5 14.6 µg/m³
111Unhealthy for Sensitive Groups
5:00 PM
💨
PM2.5 15.8 µg/m³
113Unhealthy for Sensitive Groups
Next few days
daily max · US EPA AQI
Mon
💨
Unhealthy for Sensitive Groups · UV High
113
Tue
💨
Unhealthy for Sensitive Groups · UV High
120
Wed
💨
Unhealthy for Sensitive Groups · UV Moderate
124
Thu
💨
Moderate · UV Moderate
95