Arapahoe Community College Air Quality

Monitoring Station · Littleton, United States
42
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
46 6pm
42
55
55 9pm
55
55
55 12am
55
55
55 3am
55
55
57 6am
57
9am
12pm
3pm
Station readings
46
42
CAMS model adj +30
25
25
25
25
25
25
25
25
25
25
25
25
27
27
PM2.510.0 µg/m³ ✓ WHO
Good
PM1036.0 µg/m³
Good
View city history →

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-21T21:29 UTC.