COBACH
Monitoring Station
· Calexico, United States
54
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading
Nearby Monitoring Stations
GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
Calibrated
104
12pm
104
104
104
3pm
104
129
104
6pm
91
91
79
9pm
79
79
91
12am
91
—
—
3am
—
—
—
6am
—
—
—
9am
—
—
CAMS model
adj +54
50
50
50
50
50
75
50
37
37
25
25
25
37
37
Air Quality Trend (24h)
PM2.513.3 µg/m³
✓ WHO
Moderate
Gas Pollutants
O₃
18.3
µg/m³
NO₂
5.6
µg/m³
CO
0.44
mg/m³
Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-09T15:13 UTC.