Air quality in Historic Downtown
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
13.4 µg/m³
WHO guideline 15
PM10
15.4 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
12:00 AM
💨
PM2.5 13.4 µg/m³
54Moderate
1:00 AM
💨
PM2.5 13.3 µg/m³
54Moderate
2:00 AM
💨
PM2.5 11.9 µg/m³
50Good
3:00 AM
💨
PM2.5 9.5 µg/m³
40Good
4:00 AM
💨
PM2.5 6.5 µg/m³
27Good
5:00 AM
💨
PM2.5 5.2 µg/m³
22Good
6:00 AM
💨
PM2.5 4.6 µg/m³
20Good
7:00 AM
💨
PM2.5 4.2 µg/m³
21Good
8:00 AM
💨
PM2.5 4.2 µg/m³
21Good
9:00 AM
💨
PM2.5 3.6 µg/m³
23Good
10:00 AM
💨
PM2.5 3 µg/m³
25Good
11:00 AM
💨
PM2.5 2.7 µg/m³
27Good
Next few days
daily max · US EPA AQI
Tue
💨
Moderate · UV Moderate
80
Wed
💨
Moderate · UV Moderate
54
Fri
💨
Moderate · UV Moderate
51
Sat
💨
Moderate · UV Moderate
69