Air quality in Midlothian
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
133
Unhealthy for Sensitive Groups
PM2.5
14.3 µg/m³
WHO guideline 15
PM10
15.8 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
12:00 PM
💨
PM2.5 14.3 µg/m³
133Unhealthy for Sensitive Groups
1:00 PM
💨
PM2.5 12.8 µg/m³
145Unhealthy for Sensitive Groups
2:00 PM
💨
PM2.5 11.8 µg/m³
140Unhealthy for Sensitive Groups
3:00 PM
💨
PM2.5 11.3 µg/m³
122Unhealthy for Sensitive Groups
4:00 PM
💨
PM2.5 10.9 µg/m³
106Unhealthy for Sensitive Groups
5:00 PM
💨
PM2.5 10.6 µg/m³
100Moderate
6:00 PM
💨
PM2.5 10.9 µg/m³
93Moderate
7:00 PM
💨
PM2.5 11.2 µg/m³
81Moderate
8:00 PM
💨
PM2.5 11.2 µg/m³
63Moderate
9:00 PM
💨
PM2.5 11.4 µg/m³
48Good
10:00 PM
💨
PM2.5 11.4 µg/m³
48Good
11:00 PM
💨
PM2.5 11.3 µg/m³
47Good
Next few days
daily max · US EPA AQI
Thu
💨
Unhealthy for Sensitive Groups · UV Very high
145
Fri
💨
Moderate · UV Very high
80
Sat
💨
Moderate · UV Very high
78
Sun
💨
Moderate · UV Very high
71
Mon
💨
Good · UV Very high
50