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Louisville, TN Air Quality

← Louisville

Air quality in Louisville

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.

US AQI · EPA
122
Unhealthy for Sensitive Groups
PM2.5
12.5 µg/m³
WHO guideline 15
PM10
13.1 µg/m³
WHO guideline 45
NO₂ · O₃
2 · 151
µg/m³

Hour by hour (12h)

US EPA AQI
2:00 PM 💨 PM2.5 12.5 µg/m³
122Unhealthy for Sensitive Groups
3:00 PM 💨 PM2.5 12 µg/m³
122Unhealthy for Sensitive Groups
4:00 PM 💨 PM2.5 11.8 µg/m³
124Unhealthy for Sensitive Groups
5:00 PM 💨 PM2.5 11.4 µg/m³
122Unhealthy for Sensitive Groups
6:00 PM 💨 PM2.5 11.3 µg/m³
120Unhealthy for Sensitive Groups
7:00 PM 💨 PM2.5 11.4 µg/m³
117Unhealthy for Sensitive Groups
8:00 PM 💨 PM2.5 11.9 µg/m³
106Unhealthy for Sensitive Groups
9:00 PM 💨 PM2.5 13.2 µg/m³
86Moderate
10:00 PM 💨 PM2.5 15 µg/m³
60Moderate
11:00 PM 💨 PM2.5 17.1 µg/m³
62Moderate
12:00 AM 💨 PM2.5 19.8 µg/m³
67Moderate
1:00 AM 💨 PM2.5 21.7 µg/m³
71Moderate

Next few days

daily max · US EPA AQI
Thu 💨 Unhealthy for Sensitive Groups · UV Very high
138
Fri 💨 Unhealthy for Sensitive Groups · UV Very high
144
Sat 💨 Moderate · UV Very high
100
Sun 💨 Moderate · UV Very high
65
Mon 💨 Good · UV High
33
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Updated: 2:56 PM