Back to monitors
San Joaquin E
San Joaquin
—
US EPA AQI · Sensor error — readings unavailable
Sensor is online but reporting implausible values (possible hardware fault) · confidence 60%
PM2.5 & US EPA AQI by time window
| Window | PM2.5 | AQI | Category |
|---|---|---|---|
| 1-hour avg | NA | NA | No data |
| 6-hour avg | NA | NA | No data |
| 24-hour avg | NA | NA | No data |
| 1-week avg | NA | NA | No data |
Current conditions
81°F
Temperature
29%
Humidity
1,007
Pressure (mb)
PM1.0
3,079.4 µg/m³
PM10
3,079.4 µg/m³
Data confidence
60%
Altitude
165 ft
Last updated
Jul 21, 2026 6:58:08 AM
0–50 Good
51–100 Moderate
101–150 Unhealthy (sensitive)
151–200 Unhealthy
201–300 Very unhealthy
301+ Hazardous
Air quality is shown as the US EPA AQI computed from PurpleAir PM2.5 readings. Values are preliminary and for community awareness; see the Air Monitoring Q&A.