Frederick Co. Public School Maint. Dept., Winchester, USA Air Quality

Monitoring Station · Martinsburg, United States
31
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
34 2pm
31
33
33 5pm
33
33
33 8pm
34
34
34 11pm
34
36
36 2am
36
34
— 5am
—
—
— 8am
—
—
— 11am
—
—
Station readings
31
CAMS model adj +9
25
25
24
24
24
24
24
25
25
25
25
27
27
27
25

Air Quality Forecast (24h)

PM2.57.4 µg/m³ ✓ WHO
Good
View city history →

Nearby Monitoring Stations

30
Frederick Co. Public School Maint. Dept., Winchester, USA
0.0 km PM2.5: 7.2 µg/m³

Nearby Cities

31 Martinsburg 44 Front Royal 28 Leesburg 30 Hagerstown 30 Ballenger Creek 28 Ashburn 29 Frederick 28 South Riding 28 Sterling

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-09-05T17:55 UTC.