Long Park - Haymarket, Northern Virginia, USA Air Quality
Monitoring Station
· Linton Hall, United States
49
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading
Nearby Monitoring Stations
GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
Calibrated
21
9pm
21
49
21
12am
21
21
21
3am
21
21
21
6am
21
20
20
9am
20
20
—
12pm
—
—
—
3pm
—
—
—
6pm
—
—
Station readings
49
CAMS model
adj -4
25
25
25
25
25
25
25
25
25
25
25
24
24
24
24
Air Quality Trend (24h)
PM2.511.8 µg/m³
✓ WHO
Good
Nearby Monitoring Stations
Nearby Cities
Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-05-29T00:20 UTC.