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)
27
Good
Falls Church, Virginia
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.07 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.54 μg/m³
0
55
155
255
425
605+
12.65 ppb
0
55
71
86
201
201+
0.31 ppb
0
36
76
186
605
1005+
7.96 ppb
0
54
101
361
1250
2050+
0.28 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 27
Good
5.20μg/m³
PM2.5
17.56μg/m³
PM10
9.96ppb
O3
0.31ppb
SO2
8.26ppb
NO2
0.28ppm
CO
AQI 27
Good
5.11μg/m³
PM2.5
16.16μg/m³
PM10
10.21ppb
O3
0.31ppb
SO2
8.17ppb
NO2
0.29ppm
CO
AQI 27
Good
5.07μg/m³
PM2.5
13.09μg/m³
PM10
9.01ppb
O3
0.31ppb
SO2
7.96ppb
NO2
0.28ppm
CO
AQI 33
Good
5.87μg/m³
PM2.5
25.53μg/m³
PM10
10.05ppb
O3
0.32ppb
SO2
8.33ppb
NO2
0.28ppm
CO
AQI 27
Good
5.10μg/m³
PM2.5
15.71μg/m³
PM10
10.22ppb
O3
0.31ppb
SO2
8.13ppb
NO2
0.29ppm
CO
AQI 27
Good
5.04μg/m³
PM2.5
15.88μg/m³
PM10
12.08ppb
O3
0.30ppb
SO2
8.23ppb
NO2
0.29ppm
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 07:00:00 on 2026-09-07.
In the last 24 hrs, the best air quality in Falls Church, Virginia was observed at 01:00:00 on 2026-09-06.
The current air quality in Falls Church, Virginia is 27, 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 5.07 μg/m3.
The current PM10 concentration at Falls Church, Virginia is 18.54 μg/m3.
The current carbon monoxide (CO) concentration at Falls Church, Virginia is 0.278 ppm.
The current sulfur dioxide (SO2) concentration at Falls Church, Virginia is 0.31 ppb.
The current ozone (O3) concentration at Falls Church, Virginia is 12.655 ppm.
The current nitrogen dioxide (NO2) concentration at Falls Church, Virginia is 7.965 ppb.
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