Air quality in Ayer
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
7.5 µg/m³
WHO guideline 15
PM10
7.6 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
2:00 AM
💨
PM2.5 7.5 µg/m³
41Good
3:00 AM
💨
PM2.5 7.4 µg/m³
36Good
4:00 AM
💨
PM2.5 7.4 µg/m³
31Good
5:00 AM
💨
PM2.5 7.5 µg/m³
31Good
6:00 AM
💨
PM2.5 7.5 µg/m³
31Good
7:00 AM
💨
PM2.5 7.7 µg/m³
32Good
8:00 AM
💨
PM2.5 8.8 µg/m³
37Good
9:00 AM
💨
PM2.5 8.7 µg/m³
36Good
10:00 AM
💨
PM2.5 7.1 µg/m³
37Good
11:00 AM
💨
PM2.5 5.3 µg/m³
42Good
12:00 PM
💨
PM2.5 5.1 µg/m³
43Good
1:00 PM
💨
PM2.5 6.7 µg/m³
42Good
Next few days
daily max · US EPA AQI
Mon
💨
Moderate · UV High
55
Tue
💨
Moderate · UV High
55
Thu
💨
Unhealthy for Sensitive Groups · UV High
106