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)
51
Moderate
Falls Church, Virginia
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.72 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
34.45 μg/m³
0
55
155
255
425
605+
54.68 ppb
0
55
71
86
201
201+
0.67 ppb
0
36
76
186
605
1005+
4.75 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Falls Church, Virginia
Falls Church, Virginia
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AQI 74
Moderate
8.29μg/m³
PM2.5
32.81μg/m³
PM10
62.41ppb
O3
0.82ppb
SO2
2.98ppb
NO2
0.19ppm
CO
AQI 74
Moderate
8.21μg/m³
PM2.5
31.89μg/m³
PM10
62.44ppb
O3
0.81ppb
SO2
2.87ppb
NO2
0.19ppm
CO
AQI 71
Moderate
7.95μg/m³
PM2.5
26.02μg/m³
PM10
60.53ppb
O3
0.76ppb
SO2
2.81ppb
NO2
0.18ppm
CO
AQI 74
Moderate
6.94μg/m³
PM2.5
27.82μg/m³
PM10
61.85ppb
O3
0.78ppb
SO2
3.13ppb
NO2
0.18ppm
CO
AQI 74
Moderate
8.20μg/m³
PM2.5
31.46μg/m³
PM10
62.46ppb
O3
0.81ppb
SO2
2.84ppb
NO2
0.19ppm
CO
AQI 74
Moderate
8.21μg/m³
PM2.5
33.08μg/m³
PM10
62.11ppb
O3
0.78ppb
SO2
2.58ppb
NO2
0.20ppm
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 2026-04-23.
In the last 24 hrs, the best air quality in Falls Church, Virginia was observed at 12:00:00 on 2026-04-23.
The current air quality in Falls Church, Virginia is 71, categorized as Moderate 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 9.153 μg/m3.
The current PM10 concentration at Falls Church, Virginia is 41.425 μg/m3.
The current carbon monoxide (CO) concentration at Falls Church, Virginia is 0.182 ppm.
The current sulfur dioxide (SO2) concentration at Falls Church, Virginia is 0.766 ppb.
The current ozone (O3) concentration at Falls Church, Virginia is 61.299 ppm.
The current nitrogen dioxide (NO2) concentration at Falls Church, Virginia is 2.693 ppb.
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