Air quality in Pleasant Hill
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
4.8 µg/m³
WHO guideline 15
PM10
5.7 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
6:00 AM
💨
PM2.5 4.8 µg/m³
38Good
7:00 AM
💨
PM2.5 5.2 µg/m³
35Good
8:00 AM
💨
PM2.5 5.6 µg/m³
35Good
9:00 AM
💨
PM2.5 6.6 µg/m³
40Good
10:00 AM
💨
PM2.5 7.2 µg/m³
47Good
11:00 AM
💨
PM2.5 7.3 µg/m³
61Moderate
12:00 PM
💨
PM2.5 7.1 µg/m³
80Moderate
1:00 PM
💨
PM2.5 6.9 µg/m³
95Moderate
2:00 PM
💨
PM2.5 6.8 µg/m³
100Moderate
3:00 PM
💨
PM2.5 6.7 µg/m³
86Moderate
4:00 PM
💨
PM2.5 6.8 µg/m³
65Moderate
5:00 PM
💨
PM2.5 6.3 µg/m³
49Good
Next few days
daily max · US EPA AQI
Thu
💨
Moderate · UV High
100
Fri
💨
Unhealthy for Sensitive Groups · UV High
140
Sat
💨
Moderate · UV High
97
Sun
💨
Unhealthy for Sensitive Groups · UV High
115
Mon
💨
Unhealthy for Sensitive Groups · UV High
106