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)
42
Good
Falls Church, Virginia
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.40 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.79 μg/m³
0
55
155
255
425
605+
45.28 ppb
0
55
71
86
201
201+
0.47 ppb
0
36
76
186
605
1005+
1.72 ppb
0
54
101
361
1250
2050+
0.13 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Falls Church, Virginia
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AQI 40
Good
2.31μg/m³
PM2.5
8.90μg/m³
PM10
43.05ppb
O3
0.56ppb
SO2
1.76ppb
NO2
0.12ppm
CO
AQI 40
Good
2.29μg/m³
PM2.5
8.79μg/m³
PM10
42.91ppb
O3
0.55ppb
SO2
1.74ppb
NO2
0.12ppm
CO
AQI 41
Good
2.28μg/m³
PM2.5
8.38μg/m³
PM10
44.14ppb
O3
0.49ppb
SO2
1.76ppb
NO2
0.13ppm
CO
AQI 41
Good
2.30μg/m³
PM2.5
8.45μg/m³
PM10
44.09ppb
O3
0.51ppb
SO2
1.80ppb
NO2
0.13ppm
CO
AQI 40
Good
2.29μg/m³
PM2.5
8.71μg/m³
PM10
42.83ppb
O3
0.56ppb
SO2
1.73ppb
NO2
0.12ppm
CO
AQI 41
Good
2.43μg/m³
PM2.5
10.13μg/m³
PM10
43.76ppb
O3
0.50ppb
SO2
1.79ppb
NO2
0.12ppm
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 11:00:00 on 2026-03-13.
In the last 24 hrs, the best air quality in Falls Church, Virginia was observed at 10:00:00 on 2026-03-14.
The current air quality in Falls Church, Virginia is 42, 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 2.4 μg/m3.
The current PM10 concentration at Falls Church, Virginia is 9.794 μg/m3.
The current carbon monoxide (CO) concentration at Falls Church, Virginia is 0.128 ppm.
The current sulfur dioxide (SO2) concentration at Falls Church, Virginia is 0.465 ppb.
The current ozone (O3) concentration at Falls Church, Virginia is 45.283 ppm.
The current nitrogen dioxide (NO2) concentration at Falls Church, Virginia is 1.72 ppb.
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