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
16 µg/m³
WHO guideline 15
PM10
16.5 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
7:00 AM
💨
PM2.5 16 µg/m³
59Moderate
8:00 AM
💨
PM2.5 14.4 µg/m³
56Moderate
9:00 AM
💨
PM2.5 11.2 µg/m³
47Good
10:00 AM
💨
PM2.5 6 µg/m³
25Good
11:00 AM
💨
PM2.5 3 µg/m³
30Good
12:00 PM
💨
PM2.5 2.4 µg/m³
33Good
1:00 PM
💨
PM2.5 2.3 µg/m³
35Good
2:00 PM
💨
PM2.5 2.5 µg/m³
37Good
3:00 PM
💨
PM2.5 2.9 µg/m³
38Good
4:00 PM
💨
PM2.5 3.4 µg/m³
39Good
5:00 PM
💨
PM2.5 3.8 µg/m³
38Good
6:00 PM
💨
PM2.5 4.2 µg/m³
35Good
Next few days
daily max · US EPA AQI
Mon
💨
Moderate · UV Moderate
62
Tue
💨
Moderate · UV Moderate
77
Wed
💨
Good · UV Moderate
44
Thu
💨
Moderate · UV Low
56
Fri
💨
Moderate · UV Moderate
75