Stay updated with real-time air quality in Falls Church, Virginia featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
44
Good
Falls Church, Virginia
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.99 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.84 μg/m³
0
55
155
255
425
605+
46.55 ppb
0
55
71
86
201
201+
0.30 ppb
0
36
76
186
605
1005+
2.84 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Falls Church, Virginia
Falls Church, Virginia
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AQI 46
Good
3.36μg/m³
PM2.5
12.66μg/m³
PM10
50.47ppb
O3
0.30ppb
SO2
2.95ppb
NO2
0.18ppm
CO
AQI 46
Good
3.31μg/m³
PM2.5
12.00μg/m³
PM10
50.33ppb
O3
0.30ppb
SO2
2.93ppb
NO2
0.19ppm
CO
AQI 44
Good
4.95μg/m³
PM2.5
22.54μg/m³
PM10
47.82ppb
O3
0.30ppb
SO2
2.84ppb
NO2
0.17ppm
CO
AQI 44
Good
4.95μg/m³
PM2.5
17.66μg/m³
PM10
47.72ppb
O3
0.30ppb
SO2
2.90ppb
NO2
0.17ppm
CO
AQI 46
Good
3.30μg/m³
PM2.5
11.79μg/m³
PM10
50.31ppb
O3
0.30ppb
SO2
2.92ppb
NO2
0.19ppm
CO
AQI 46
Good
3.50μg/m³
PM2.5
12.73μg/m³
PM10
50.18ppb
O3
0.30ppb
SO2
2.68ppb
NO2
0.19ppm
CO
Air quality data and pollutant measurements for Virginia, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Falls Church, Virginia is updated every hour.
The worst air quality in Falls Church, Virginia in the last 24 hours was observed at 09:00:00 on 2026-07-22.
In the last 24 hrs, the best air quality in Falls Church, Virginia was observed at 03:00:00 on 2026-07-23.
The current air quality in Falls Church, Virginia is 44, categorized as Good based on real-time data.
The most common pollutant in Falls Church, Virginia is O3.
If the air quality in Falls Church, Virginia is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Falls Church, Virginia is 4.988 μg/m3.
The current PM10 concentration at Falls Church, Virginia is 22.839 μg/m3.
The current carbon monoxide (CO) concentration at Falls Church, Virginia is 0.178 ppm.
The current sulfur dioxide (SO2) concentration at Falls Church, Virginia is 0.3 ppb.
The current ozone (O3) concentration at Falls Church, Virginia is 46.548 ppm.
The current nitrogen dioxide (NO2) concentration at Falls Church, Virginia is 2.836 ppb.
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