Air quality in Grand Rapids
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
4.1 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
8:00 AM
💨
PM2.5 4 µg/m³
22Good
9:00 AM
💨
PM2.5 4.3 µg/m³
24Good
10:00 AM
💨
PM2.5 4.4 µg/m³
26Good
11:00 AM
💨
PM2.5 4 µg/m³
29Good
12:00 PM
💨
PM2.5 3.4 µg/m³
32Good
1:00 PM
💨
PM2.5 2.9 µg/m³
35Good
2:00 PM
💨
PM2.5 2.5 µg/m³
37Good
3:00 PM
💨
PM2.5 2.2 µg/m³
38Good
4:00 PM
💨
PM2.5 2.1 µg/m³
39Good
5:00 PM
💨
PM2.5 2.1 µg/m³
39Good
6:00 PM
💨
PM2.5 2.2 µg/m³
38Good
7:00 PM
💨
PM2.5 2.3 µg/m³
36Good
Next few days
daily max · US EPA AQI
Wed
💨
Moderate · UV Moderate
56