Air quality in Cambridge City
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
8 µg/m³
WHO guideline 15
PM10
8.4 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
7:00 AM
💨
PM2.5 8 µg/m³
33Good
8:00 AM
💨
PM2.5 8.1 µg/m³
34Good
9:00 AM
💨
PM2.5 8.1 µg/m³
37Good
10:00 AM
💨
PM2.5 8.9 µg/m³
47Good
11:00 AM
💨
PM2.5 9.7 µg/m³
66Moderate
12:00 PM
💨
PM2.5 10.2 µg/m³
86Moderate
1:00 PM
💨
PM2.5 10 µg/m³
100Moderate
2:00 PM
💨
PM2.5 9.4 µg/m³
106Unhealthy for Sensitive Groups
3:00 PM
💨
PM2.5 8.9 µg/m³
108Unhealthy for Sensitive Groups
4:00 PM
💨
PM2.5 8.5 µg/m³
103Unhealthy for Sensitive Groups
5:00 PM
💨
PM2.5 8.1 µg/m³
93Moderate
6:00 PM
💨
PM2.5 7.8 µg/m³
71Moderate
Next few days
daily max · US EPA AQI
Fri
💨
Unhealthy for Sensitive Groups · UV High
108
Sat
💨
Moderate · UV High
76
Mon
💨
Moderate · UV High
51