Real-time air quality index in Fairfax, Virginia today
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)
43
Good
Fairfax, Virginia
Last updated: ... (Local time)
Common air pollutants in Fairfax, Virginia
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
4.83 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
22.08 μg/m³
0
55
155
255
425
605+
Ozone (O3)
46.17 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.29 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
2.86 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Fairfax, Virginia
Fairfax, Virginia
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Fairfax, Virginia air quality map: Real-time AQI near you
Air quality in nearby cities
Kings Park West, Virginia
AQI 45
Good
4.89μg/m³
PM2.5
17.68μg/m³
PM10
49.05ppb
O3
0.29ppb
SO2
2.90ppb
NO2
0.17ppm
CO
Oakton, Virginia
AQI 43
Good
4.83μg/m³
PM2.5
22.08μg/m³
PM10
46.17ppb
O3
0.29ppb
SO2
2.86ppb
NO2
0.17ppm
CO
Fair Oaks, Virginia
AQI 43
Good
4.68μg/m³
PM2.5
21.95μg/m³
PM10
45.52ppb
O3
0.29ppb
SO2
1.11ppb
NO2
0.17ppm
CO
Fairfax Station, Virginia
AQI 46
Good
4.89μg/m³
PM2.5
17.67μg/m³
PM10
50.33ppb
O3
0.29ppb
SO2
2.92ppb
NO2
0.17ppm
CO
Difficult Run, Virginia
AQI 43
Good
4.83μg/m³
PM2.5
22.08μg/m³
PM10
46.17ppb
O3
0.29ppb
SO2
2.86ppb
NO2
0.17ppm
CO
Burke, Virginia
AQI 47
Good
3.43μg/m³
PM2.5
13.58μg/m³
PM10
50.71ppb
O3
0.30ppb
SO2
2.97ppb
NO2
0.18ppm
CO
How accurate is Virginia, USA air quality data?
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
Frequently asked questions
How frequently is the air quality data for Fairfax, Virginia updated?
Air quality data for Fairfax, Virginia is updated on an hourly basis.
When did Fairfax, Virginia experience the worst air quality in the last 24 hours?
The worst air quality in Fairfax, Virginia was recorded at 09:00:00 on 2026-07-22.
When did Fairfax, Virginia have its best air quality in the last 24 hours?
The best air quality in Fairfax, Virginia was recorded at 03:00:00 on 2026-07-23.
What is the real-time air quality index for Fairfax, Virginia?
The real-time air quality index in Fairfax, Virginia is 43, currently categorized as Good.
Which pollutant is found most often in Fairfax, Virginia?
The most common pollutant in Fairfax, Virginia is O3.
What can I do if the air quality in Fairfax, Virginia is poor?
If the air quality in Fairfax, Virginia is poor, limit outdoor activities and use a mask to safeguard your health.
What are the current PM2.5 levels in Fairfax, Virginia?
The measured PM2.5 levels in Fairfax, Virginia at present are 4.828 μg/m3.
What are the current PM10 levels at Fairfax, Virginia?
The current PM10 levels in Fairfax, Virginia are 22.084 μg/m3.
What are the current carbon monoxide (CO) levels at Fairfax, Virginia?
The current carbon monoxide (CO) level in Fairfax, Virginia is 0.171 ppm.
What are the current sulfur dioxide (SO2) levels at Fairfax, Virginia?
The current sulfur dioxide (SO2) levels in Fairfax, Virginia are 0.29 ppb.
What are the current ozone (O3) levels at Fairfax, Virginia?
The current ozone (O3) levels at Fairfax, Virginia is 46.171 ppm.
What are the current nitrogen dioxide (NO2) levels at Fairfax, Virginia?
The current nitrogen dioxide (NO2) levels at Fairfax, Virginia is 2.86 ppb.
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