Stay updated with real-time air quality in Leesburg, 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)
36
Good
Leesburg, Virginia
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.09 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.23 μg/m³
0
55
155
255
425
605+
39.08 ppb
0
55
71
86
201
201+
0.44 ppb
0
36
76
186
605
1005+
1.18 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Leesburg, Virginia
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AQI 40
Good
4.18μg/m³
PM2.5
20.05μg/m³
PM10
42.98ppb
O3
0.41ppb
SO2
1.29ppb
NO2
0.19ppm
CO
AQI 36
Good
5.34μg/m³
PM2.5
16.45μg/m³
PM10
38.70ppb
O3
0.45ppb
SO2
1.19ppb
NO2
0.19ppm
CO
AQI 35
Good
5.49μg/m³
PM2.5
16.02μg/m³
PM10
38.05ppb
O3
0.45ppb
SO2
1.01ppb
NO2
0.19ppm
CO
AQI 35
Good
5.43μg/m³
PM2.5
16.06μg/m³
PM10
38.19ppb
O3
0.45ppb
SO2
1.04ppb
NO2
0.19ppm
CO
AQI 35
Good
5.32μg/m³
PM2.5
16.08μg/m³
PM10
38.39ppb
O3
0.45ppb
SO2
1.07ppb
NO2
0.19ppm
CO
AQI 35
Good
5.47μg/m³
PM2.5
16.03μg/m³
PM10
38.09ppb
O3
0.45ppb
SO2
1.02ppb
NO2
0.19ppm
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 Leesburg, Virginia is updated every hour.
The worst air quality in Leesburg, Virginia in the last 24 hours was observed at 03:00:00 on 2026-03-10.
In the last 24 hrs, the best air quality in Leesburg, Virginia was observed at 04:00:00 on 2026-03-10.
The current air quality in Leesburg, Virginia is 36, categorized as Good based on real-time data.
The most common pollutant in Leesburg, Virginia is O3.
If the air quality in Leesburg, Virginia is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Leesburg, Virginia is 5.092 μg/m3.
The current PM10 concentration at Leesburg, Virginia is 16.232 μg/m3.
The current carbon monoxide (CO) concentration at Leesburg, Virginia is 0.197 ppm.
The current sulfur dioxide (SO2) concentration at Leesburg, Virginia is 0.439 ppb.
The current ozone (O3) concentration at Leesburg, Virginia is 39.077 ppm.
The current nitrogen dioxide (NO2) concentration at Leesburg, Virginia is 1.178 ppb.
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