Air quality in Union City
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
6.7 µg/m³
WHO guideline 15
PM10
7.2 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
2:00 PM
💨
PM2.5 6.7 µg/m³
40 Good
3:00 PM
💨
PM2.5 6.8 µg/m³
40 Good
4:00 PM
💨
PM2.5 6.7 µg/m³
39 Good
5:00 PM
💨
PM2.5 7.6 µg/m³
36 Good
6:00 PM
💨
PM2.5 9.4 µg/m³
39 Good
7:00 PM
💨
PM2.5 10.3 µg/m³
43 Good
8:00 PM
💨
PM2.5 8.9 µg/m³
37 Good
9:00 PM
💨
PM2.5 7.5 µg/m³
31 Good
10:00 PM
💨
PM2.5 6.8 µg/m³
28 Good
11:00 PM
💨
PM2.5 6.5 µg/m³
27 Good
12:00 AM
💨
PM2.5 6.2 µg/m³
26 Good
1:00 AM
💨
PM2.5 5.8 µg/m³
24 Good
Next few days daily max · US EPA AQI
Tue
💨
Moderate · UV Moderate
68
Wed
💨
Moderate · UV Moderate
62
Thu
💨
Moderate · UV Moderate
57
Fri
💨
Moderate · UV Moderate
54
Sat
💨
Moderate · UV Moderate
54
JavaScript is needed for the map — the city links below work without it.
Precip NEXRAD · NOAA Temp Wind Clouds Terrain