Air quality in Smithfield
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
4 µg/m³
WHO guideline 15
PM10
5.3 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
8:00 AM
💨
PM2.5 4 µg/m³
35Good
9:00 AM
💨
PM2.5 4.4 µg/m³
34Good
10:00 AM
💨
PM2.5 4.8 µg/m³
33Good
11:00 AM
💨
PM2.5 5.3 µg/m³
33Good
12:00 PM
💨
PM2.5 4.7 µg/m³
33Good
1:00 PM
💨
PM2.5 4.9 µg/m³
34Good
2:00 PM
💨
PM2.5 4.8 µg/m³
34Good
3:00 PM
💨
PM2.5 4.8 µg/m³
36Good
4:00 PM
💨
PM2.5 4.6 µg/m³
37Good
5:00 PM
💨
PM2.5 4.6 µg/m³
37Good
6:00 PM
💨
PM2.5 4.7 µg/m³
34Good
7:00 PM
💨
PM2.5 5.3 µg/m³
30Good
Next few days
daily max · US EPA AQI
Mon
💨
Moderate · UV Low
55
Tue
💨
Moderate · UV Moderate
74
Wed
💨
Moderate · UV High
83
Thu
💨
Moderate · UV Moderate
81
Fri
💨
Good · UV Moderate
30