Air quality in Atascadero
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
228
Very Unhealthy
PM2.5
177.9 µg/m³
WHO guideline 15
PM10
185.3 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
5:00 AM
💨
PM2.5 177.9 µg/m³
228Very Unhealthy
6:00 AM
💨
PM2.5 165.8 µg/m³
216Very Unhealthy
7:00 AM
💨
PM2.5 154.6 µg/m³
205Very Unhealthy
8:00 AM
💨
PM2.5 136.4 µg/m³
193Unhealthy
9:00 AM
💨
PM2.5 141.6 µg/m³
195Unhealthy
10:00 AM
💨
PM2.5 144.4 µg/m³
197Unhealthy
11:00 AM
💨
PM2.5 136 µg/m³
193Unhealthy
12:00 PM
💨
PM2.5 122.5 µg/m³
186Unhealthy
1:00 PM
💨
PM2.5 106.4 µg/m³
177Unhealthy
2:00 PM
💨
PM2.5 95.5 µg/m³
178Unhealthy
3:00 PM
💨
PM2.5 100.1 µg/m³
202Very Unhealthy
4:00 PM
💨
PM2.5 121.5 µg/m³
215Very Unhealthy
Next few days
daily max · US EPA AQI
Sat
💨
Very Unhealthy · UV Very high
292
Sun
💨
Unhealthy · UV High
182
Mon
💨
Unhealthy · UV Very high
167
Tue
💨
Unhealthy · UV Very high
178
Wed
💨
Unhealthy · UV High
175