CAPCOG San Marcos Staples Road Air Quality

Monitoring Station · San Marcos, United States
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
30 12am
22
19
19 3am
17
17
17 6am
17
17
17 9am
16
16
17 12pm
17
17
3pm
6pm
9pm
Station readings
30
22
CAMS model adj -8
27
27
27
27
25
25
25
25
25
25
24
24
25
25
25
PM2.55.2 µg/m³ ✓ WHO
Good
View city history →
O₃
29.0
µg/m³

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T03:05 UTC.