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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
WindowPM2.5AQICategory
1-hour avg 174.3 µg/m³ 249 Very Unhealthy
6-hour avg 66.4 µg/m³ 159 Unhealthy
24-hour avg 38.6 µg/m³ 109 Unhealthy for Sensitive Groups
1-week avg 19.0 µg/m³ 69 Moderate
Current conditions
96°F
Temperature
25%
Humidity
1,006
Pressure (mb)
PM1.0
3,208.0 µg/m³
PM10
3,208.0 µg/m³
Data confidence
60%
Altitude
165 ft
Last updated
Aug 17, 2026 6:47:13 PM
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.