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)
22
Good
Martinsburg, West Virginia
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.84 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.47 μg/m³
0
55
155
255
425
605+
10.44 ppb
0
55
71
86
201
201+
0.16 ppb
0
36
76
186
605
1005+
3.52 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Martinsburg, West Virginia
Martinsburg, West Virginia
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AQI 27
Good
4.77μg/m³
PM2.5
20.41μg/m³
PM10
5.64ppb
O3
0.31ppb
SO2
3.61ppb
NO2
0.30ppm
CO
AQI 27
Good
4.72μg/m³
PM2.5
20.25μg/m³
PM10
6.22ppb
O3
0.31ppb
SO2
3.62ppb
NO2
0.30ppm
CO
AQI 33
Good
5.63μg/m³
PM2.5
20.26μg/m³
PM10
7.29ppb
O3
0.31ppb
SO2
3.08ppb
NO2
0.30ppm
CO
AQI 38
Good
7.17μg/m³
PM2.5
13.12μg/m³
PM10
5.71ppb
O3
0.32ppb
SO2
3.85ppb
NO2
0.30ppm
CO
AQI 22
Good
3.76μg/m³
PM2.5
16.70μg/m³
PM10
16.21ppb
O3
0.22ppb
SO2
3.77ppb
NO2
0.30ppm
CO
AQI 44
Good
7.88μg/m³
PM2.5
12.40μg/m³
PM10
5.10ppb
O3
0.32ppb
SO2
3.83ppb
NO2
0.30ppm
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 09:00:00 on 2026-09-07.
In the last 24 hrs, the best air quality in Martinsburg, West Virginia was observed at 03:00:00 on 2026-09-07.
The current air quality in Martinsburg, West Virginia is 22, categorized as Good based on real-time data.
The most common pollutant in Martinsburg, West Virginia is PM2.5.
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 3.84 μg/m3.
The current PM10 concentration at Martinsburg, West Virginia is 20.472 μg/m3.
The current carbon monoxide (CO) concentration at Martinsburg, West Virginia is 0.261 ppm.
The current sulfur dioxide (SO2) concentration at Martinsburg, West Virginia is 0.164 ppb.
The current ozone (O3) concentration at Martinsburg, West Virginia is 10.439 ppm.
The current nitrogen dioxide (NO2) concentration at Martinsburg, West Virginia is 3.522 ppb.
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