Air quality in Houghton
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
3.6 µg/m³
WHO guideline 15
PM10
3.6 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
7:00 PM
💨
PM2.5 3.6 µg/m³
43Good
8:00 PM
💨
PM2.5 3.9 µg/m³
42Good
9:00 PM
💨
PM2.5 4.2 µg/m³
39Good
10:00 PM
💨
PM2.5 5.1 µg/m³
35Good
11:00 PM
💨
PM2.5 5.8 µg/m³
32Good
12:00 AM
💨
PM2.5 6.7 µg/m³
30Good
1:00 AM
💨
PM2.5 6.5 µg/m³
28Good
2:00 AM
💨
PM2.5 5.6 µg/m³
26Good
3:00 AM
💨
PM2.5 6.6 µg/m³
28Good
4:00 AM
💨
PM2.5 8.5 µg/m³
35Good
5:00 AM
💨
PM2.5 9.8 µg/m³
41Good
6:00 AM
💨
PM2.5 11.1 µg/m³
46Good
Next few days
daily max · US EPA AQI
Fri
💨
Moderate · UV Moderate
51
Sat
💨
Moderate · UV High
55
Sun
💨
Moderate · UV High
51
Mon
💨
Moderate · UV High
54