Air quality in Westfield
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
16.6 µg/m³
WHO guideline 15
PM10
16.9 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
5:00 AM
💨
PM2.5 16.6 µg/m³
60 Moderate
6:00 AM
💨
PM2.5 17.5 µg/m³
62 Moderate
7:00 AM
💨
PM2.5 19.7 µg/m³
67 Moderate
8:00 AM
💨
PM2.5 21.7 µg/m³
71 Moderate
9:00 AM
💨
PM2.5 19 µg/m³
66 Moderate
10:00 AM
💨
PM2.5 16.4 µg/m³
60 Moderate
11:00 AM
💨
PM2.5 15 µg/m³
57 Moderate
12:00 PM
💨
PM2.5 14.9 µg/m³
57 Moderate
1:00 PM
💨
PM2.5 15.3 µg/m³
58 Moderate
2:00 PM
💨
PM2.5 15.6 µg/m³
58 Moderate
3:00 PM
💨
PM2.5 16.1 µg/m³
63 Moderate
4:00 PM
💨
PM2.5 16.7 µg/m³
78 Moderate
Next few days daily max · US EPA AQI
Tue
💨
Moderate · UV Moderate
83
Wed
💨
Moderate · UV Moderate
52
Thu
💨
Moderate · UV Moderate
61
Fri
💨
Moderate · UV Low
51
Sat
💨
Good · UV Moderate
31
JavaScript is needed for the map — the city links below work without it.
Precip NEXRAD · NOAA Temp Wind Clouds Terrain