Stay updated with real-time air quality in Martinsburg, West 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)
38
Good
Martinsburg, West Virginia
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.83 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.66 μg/m³
0
55
155
255
425
605+
40.99 ppb
0
55
71
86
201
201+
0.32 ppb
0
36
76
186
605
1005+
1.86 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Martinsburg, West Virginia
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AQI 40
Good
3.30μg/m³
PM2.5
14.29μg/m³
PM10
42.68ppb
O3
0.38ppb
SO2
2.76ppb
NO2
0.15ppm
CO
AQI 40
Good
3.28μg/m³
PM2.5
14.32μg/m³
PM10
42.84ppb
O3
0.38ppb
SO2
2.76ppb
NO2
0.15ppm
CO
AQI 34
Good
2.96μg/m³
PM2.5
13.61μg/m³
PM10
37.45ppb
O3
0.42ppb
SO2
2.87ppb
NO2
0.14ppm
CO
AQI 40
Good
2.75μg/m³
PM2.5
14.78μg/m³
PM10
42.88ppb
O3
0.42ppb
SO2
2.43ppb
NO2
0.15ppm
CO
AQI 39
Good
2.95μg/m³
PM2.5
12.73μg/m³
PM10
41.90ppb
O3
0.38ppb
SO2
2.84ppb
NO2
0.15ppm
CO
AQI 40
Good
2.34μg/m³
PM2.5
13.61μg/m³
PM10
43.01ppb
O3
0.41ppb
SO2
2.22ppb
NO2
0.15ppm
CO
Air quality data and pollutant measurements for West 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 Martinsburg, West Virginia is updated every hour.
The worst air quality in Martinsburg, West Virginia in the last 24 hours was observed at 03:00:00 on 2026-03-09.
In the last 24 hrs, the best air quality in Martinsburg, West Virginia was observed at 12:00:00 on 2026-03-09.
The current air quality in Martinsburg, West Virginia is 38, categorized as Good based on real-time data.
The most common pollutant in Martinsburg, West Virginia is O3.
If the air quality in Martinsburg, West Virginia is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Martinsburg, West Virginia is 2.827 μg/m3.
The current PM10 concentration at Martinsburg, West Virginia is 10.66 μg/m3.
The current carbon monoxide (CO) concentration at Martinsburg, West Virginia is 0.202 ppm.
The current sulfur dioxide (SO2) concentration at Martinsburg, West Virginia is 0.324 ppb.
The current ozone (O3) concentration at Martinsburg, West Virginia is 40.99 ppm.
The current nitrogen dioxide (NO2) concentration at Martinsburg, West Virginia is 1.858 ppb.
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