Air quality in Old Town
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
16.3 µg/m³
WHO guideline 15
PM10
16.5 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
9:00 AM
💨
PM2.5 16.3 µg/m³
60Moderate
10:00 AM
💨
PM2.5 15.3 µg/m³
81Moderate
11:00 AM
💨
PM2.5 10.7 µg/m³
128Unhealthy for Sensitive Groups
12:00 PM
💨
PM2.5 9.2 µg/m³
135Unhealthy for Sensitive Groups
1:00 PM
💨
PM2.5 8.5 µg/m³
120Unhealthy for Sensitive Groups
2:00 PM
💨
PM2.5 8 µg/m³
103Unhealthy for Sensitive Groups
3:00 PM
💨
PM2.5 8 µg/m³
91Moderate
4:00 PM
💨
PM2.5 8.2 µg/m³
78Moderate
5:00 PM
💨
PM2.5 9.2 µg/m³
61Moderate
6:00 PM
💨
PM2.5 10.5 µg/m³
49Good
7:00 PM
💨
PM2.5 11.1 µg/m³
46Good
8:00 PM
💨
PM2.5 12.2 µg/m³
51Moderate
Next few days
daily max · US EPA AQI
Tue
💨
Unhealthy for Sensitive Groups · UV High
135
Wed
💨
Moderate · UV High
86
Thu
💨
Unhealthy for Sensitive Groups · UV Very high
140
Fri
💨
Moderate · UV High
100