Air quality in Noe Valley
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
14.1 µg/m³
WHO guideline 15
PM10
20.8 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
6:00 AM
💨
PM2.5 14.1 µg/m³
55Moderate
7:00 AM
💨
PM2.5 14.5 µg/m³
56Moderate
8:00 AM
💨
PM2.5 14.8 µg/m³
57Moderate
9:00 AM
💨
PM2.5 15.3 µg/m³
58Moderate
10:00 AM
💨
PM2.5 15.4 µg/m³
58Moderate
11:00 AM
💨
PM2.5 15.5 µg/m³
58Moderate
12:00 PM
💨
PM2.5 15.4 µg/m³
58Moderate
1:00 PM
💨
PM2.5 15.3 µg/m³
58Moderate
2:00 PM
💨
PM2.5 14.5 µg/m³
56Moderate
3:00 PM
💨
PM2.5 13.5 µg/m³
54Moderate
4:00 PM
💨
PM2.5 12.7 µg/m³
52Moderate
5:00 PM
💨
PM2.5 12 µg/m³
50Good
Next few days
daily max · US EPA AQI
Fri
💨
Moderate · UV High
58
Mon
💨
Moderate · UV Moderate
55
Tue
💨
Moderate · UV Moderate
54