Air quality in Watsonville
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.
US AQI · EPA
115
Unhealthy for Sensitive Groups
PM2.5
41 µg/m³
WHO guideline 15
PM10
43.9 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
2:00 AM
💨
PM2.5 41 µg/m³
115Unhealthy for Sensitive Groups
3:00 AM
💨
PM2.5 48.2 µg/m³
132Unhealthy for Sensitive Groups
4:00 AM
💨
PM2.5 56.2 µg/m³
151Unhealthy
5:00 AM
💨
PM2.5 63.8 µg/m³
155Unhealthy
6:00 AM
💨
PM2.5 64.5 µg/m³
156Unhealthy
7:00 AM
💨
PM2.5 66.6 µg/m³
157Unhealthy
8:00 AM
💨
PM2.5 56.9 µg/m³
152Unhealthy
9:00 AM
💨
PM2.5 32.2 µg/m³
93Moderate
10:00 AM
💨
PM2.5 18.4 µg/m³
64Moderate
11:00 AM
💨
PM2.5 15.8 µg/m³
59Moderate
12:00 PM
💨
PM2.5 13.9 µg/m³
55Moderate
1:00 PM
💨
PM2.5 12.1 µg/m³
51Moderate
Next few days
daily max · US EPA AQI
Sat
💨
Unhealthy · UV Very high
154
Sun
💨
Unhealthy · UV High
157
Mon
💨
Unhealthy for Sensitive Groups · UV Very high
127
Tue
💨
Moderate · UV High
78
Wed
💨
Moderate · UV High
94