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)
31
Good
Leesburg, Virginia
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.46 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.08 μg/m³
0
55
155
255
425
605+
33.59 ppb
0
55
71
86
201
201+
0.22 ppb
0
36
76
186
605
1005+
2.32 ppb
0
54
101
361
1250
2050+
0.10 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Leesburg, Virginia
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AQI 22
Good
4.15μg/m³
PM2.5
15.25μg/m³
PM10
12.82ppb
O3
0.52ppb
SO2
9.22ppb
NO2
0.32ppm
CO
AQI 27
Good
4.99μg/m³
PM2.5
20.91μg/m³
PM10
10.82ppb
O3
0.51ppb
SO2
8.98ppb
NO2
0.32ppm
CO
AQI 27
Good
5.00μg/m³
PM2.5
20.99μg/m³
PM10
10.99ppb
O3
0.53ppb
SO2
9.09ppb
NO2
0.32ppm
CO
AQI 27
Good
4.98μg/m³
PM2.5
20.85μg/m³
PM10
10.89ppb
O3
0.52ppb
SO2
9.02ppb
NO2
0.32ppm
CO
AQI 27
Good
4.93μg/m³
PM2.5
20.49μg/m³
PM10
10.63ppb
O3
0.52ppb
SO2
8.85ppb
NO2
0.32ppm
CO
AQI 27
Good
4.99μg/m³
PM2.5
20.95μg/m³
PM10
10.96ppb
O3
0.53ppb
SO2
9.07ppb
NO2
0.32ppm
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 07:00:00 on 2026-10-22.
In the last 24 hrs, the best air quality in Leesburg, Virginia was observed at 03:00:00 on 2026-10-22.
The current air quality in Leesburg, Virginia is 31, 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 2.463 μg/m3.
The current PM10 concentration at Leesburg, Virginia is 13.083 μg/m3.
The current carbon monoxide (CO) concentration at Leesburg, Virginia is 0.1 ppm.
The current sulfur dioxide (SO2) concentration at Leesburg, Virginia is 0.219 ppb.
The current ozone (O3) concentration at Leesburg, Virginia is 33.586 ppm.
The current nitrogen dioxide (NO2) concentration at Leesburg, Virginia is 2.322 ppb.
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