Sheridan Library Air Quality
Monitoring Station
· Littleton, United States
23
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading
Nearby Monitoring Stations
GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
Calibrated
22
2am
23
26
26
5am
24
24
24
8am
24
24
24
11am
24
24
24
2pm
26
24
—
5pm
—
—
—
8pm
—
—
—
11pm
—
—
Station readings
22
23
CAMS model
adj -1
25
25
27
27
25
25
25
25
25
25
25
25
25
27
25
Air Quality Forecast (24h)
PM2.55.4 µg/m³
✓ WHO
Good
Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T05:48 UTC.