Stay updated with real-time air quality in Fairfax, 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)
56
Moderate
Fairfax, Virginia
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
11.83 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
23.52 μg/m³
0
55
155
255
425
605+
33.83 ppb
0
55
71
86
201
201+
0.19 ppb
0
36
76
186
605
1005+
4.34 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Fairfax, Virginia
Fairfax, Virginia
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AQI 60
Moderate
13.62μg/m³
PM2.5
24.96μg/m³
PM10
46.00ppb
O3
0.11ppb
SO2
2.69ppb
NO2
0.27ppm
CO
AQI 60
Moderate
13.72μg/m³
PM2.5
26.30μg/m³
PM10
44.36ppb
O3
0.12ppb
SO2
2.63ppb
NO2
0.27ppm
CO
AQI 58
Moderate
13.29μg/m³
PM2.5
27.19μg/m³
PM10
46.22ppb
O3
0.11ppb
SO2
3.17ppb
NO2
0.27ppm
CO
AQI 58
Moderate
12.94μg/m³
PM2.5
51.30μg/m³
PM10
46.74ppb
O3
0.11ppb
SO2
2.69ppb
NO2
0.27ppm
CO
AQI 60
Moderate
13.72μg/m³
PM2.5
26.30μg/m³
PM10
44.36ppb
O3
0.12ppb
SO2
2.63ppb
NO2
0.27ppm
CO
AQI 58
Moderate
13.34μg/m³
PM2.5
52.73μg/m³
PM10
46.76ppb
O3
0.10ppb
SO2
2.77ppb
NO2
0.26ppm
CO
Air quality measurements for Virginia, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Fairfax, Virginia is updated on an hourly basis.
The worst air quality in Fairfax, Virginia was recorded at 04:00:00 on 2025-07-23.
The best air quality in Fairfax, Virginia was recorded at 05:00:00 on 2025-07-23.
The real-time air quality index in Fairfax, Virginia is 60, currently categorized as Moderate.
The most common pollutant in Fairfax, Virginia is PM2.5.
If the air quality in Fairfax, Virginia is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Fairfax, Virginia at present are 13.725 μg/m3.
The current PM10 levels in Fairfax, Virginia are 26.298 μg/m3.
The current carbon monoxide (CO) level in Fairfax, Virginia is 0.267 ppm.
The current sulfur dioxide (SO2) levels in Fairfax, Virginia are 0.116 ppb.
The current ozone (O3) levels at Fairfax, Virginia is 44.364 ppm.
The current nitrogen dioxide (NO2) levels at Fairfax, Virginia is 2.633 ppb.
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