Stay updated with real-time air quality in Great Falls, 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)
58
Moderate
Great Falls, Virginia
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
13.15 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
59.95 μg/m³
0
55
155
255
425
605+
4.54 ppb
0
55
71
86
201
201+
0.52 ppb
0
36
76
186
605
1005+
13.30 ppb
0
54
101
361
1250
2050+
0.43 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Great Falls, Virginia
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AQI 64
Moderate
15.95μg/m³
PM2.5
41.08μg/m³
PM10
4.84ppb
O3
0.44ppb
SO2
19.76ppb
NO2
0.44ppm
CO
AQI 66
Moderate
17.14μg/m³
PM2.5
34.89μg/m³
PM10
3.62ppb
O3
0.48ppb
SO2
15.12ppb
NO2
0.44ppm
CO
AQI 54
Moderate
10.85μg/m³
PM2.5
37.45μg/m³
PM10
4.56ppb
O3
0.52ppb
SO2
13.39ppb
NO2
0.43ppm
CO
AQI 66
Moderate
16.79μg/m³
PM2.5
69.77μg/m³
PM10
4.60ppb
O3
0.48ppb
SO2
17.60ppb
NO2
0.46ppm
CO
AQI 54
Moderate
10.85μg/m³
PM2.5
37.45μg/m³
PM10
4.56ppb
O3
0.52ppb
SO2
13.39ppb
NO2
0.43ppm
CO
AQI 60
Moderate
14.42μg/m³
PM2.5
27.52μg/m³
PM10
6.14ppb
O3
0.53ppb
SO2
14.43ppb
NO2
0.43ppm
CO
Air quality and pollutant data for Virginia, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Great Falls, Virginia is updated every hour for accuracy.
In the past 24 hours, the air quality in Great Falls, Virginia was at its worst at 04:00:00 on 2025-12-07.
In the last 24 hours, the best air quality in Great Falls, Virginia was observed at 09:00:00 on 2025-12-06.
As of now, the AQI in Great Falls, Virginia is 58, indicating Moderate conditions.
Great Falls, Virginia air has the highest levels of PM2.5.
Poor air quality in Great Falls, Virginia means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Great Falls, Virginia are currently 13.147 μg/m3.
The PM10 concentration in Great Falls, Virginia is 59.954 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Great Falls, Virginia is 0.433 ppm.
Currently, Great Falls, Virginia has a sulfur dioxide (SO2) concentration of 0.519 ppb.
The current ozone (O3) level in Great Falls, Virginia at the moment is 4.541 ppm.
Nitrogen dioxide (NO2) level in Great Falls, Virginia at the moment is 13.303 ppb.
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