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)
49
Good
Falls Church, Virginia
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.05 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
39.86 μg/m³
0
55
155
255
425
605+
28.78 ppb
0
55
71
86
201
201+
0.62 ppb
0
36
76
186
605
1005+
11.49 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 33
Good
6.13μg/m³
PM2.5
24.52μg/m³
PM10
30.25ppb
O3
0.64ppb
SO2
14.33ppb
NO2
0.17ppm
CO
AQI 33
Good
6.22μg/m³
PM2.5
24.58μg/m³
PM10
30.27ppb
O3
0.64ppb
SO2
13.48ppb
NO2
0.16ppm
CO
AQI 49
Good
9.10μg/m³
PM2.5
39.68μg/m³
PM10
30.17ppb
O3
0.61ppb
SO2
11.61ppb
NO2
0.18ppm
CO
AQI 49
Good
8.80μg/m³
PM2.5
38.99μg/m³
PM10
30.18ppb
O3
0.62ppb
SO2
14.28ppb
NO2
0.18ppm
CO
AQI 33
Good
6.24μg/m³
PM2.5
24.41μg/m³
PM10
30.26ppb
O3
0.64ppb
SO2
13.35ppb
NO2
0.16ppm
CO
AQI 44
Good
8.38μg/m³
PM2.5
34.94μg/m³
PM10
30.55ppb
O3
0.62ppb
SO2
10.94ppb
NO2
0.15ppm
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 05:00:00 on 2026-01-22.
In the last 24 hrs, the best air quality in Falls Church, Virginia was observed at 12:00:00 on 2026-01-23.
The current air quality in Falls Church, Virginia is 49, categorized as Good based on real-time data.
The most common pollutant in Falls Church, Virginia is PM2.5.
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 9.054 μg/m3.
The current PM10 concentration at Falls Church, Virginia is 39.863 μg/m3.
The current carbon monoxide (CO) concentration at Falls Church, Virginia is 0.179 ppm.
The current sulfur dioxide (SO2) concentration at Falls Church, Virginia is 0.618 ppb.
The current ozone (O3) concentration at Falls Church, Virginia is 28.78 ppm.
The current nitrogen dioxide (NO2) concentration at Falls Church, Virginia is 11.488 ppb.
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