Stay updated with real-time air quality in Weirton, 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)
259
Very unhealthy
Weirton, West Virginia
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
184.28 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
366.14 μg/m³
0
55
155
255
425
605+
23.14 ppb
0
55
71
86
201
201+
1.95 ppb
0
36
76
186
605
1005+
15.98 ppb
0
54
101
361
1250
2050+
1.00 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Weirton, West Virginia
Weirton, West Virginia
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AQI 276
Very unhealthy
201.33μg/m³
PM2.5
314.86μg/m³
PM10
15.60ppb
O3
2.00ppb
SO2
15.98ppb
NO2
1.00ppm
CO
AQI 221
Very unhealthy
145.52μg/m³
PM2.5
347.60μg/m³
PM10
46.38ppb
O3
1.62ppb
SO2
18.10ppb
NO2
1.08ppm
CO
AQI 227
Very unhealthy
151.98μg/m³
PM2.5
335.58μg/m³
PM10
17.55ppb
O3
1.64ppb
SO2
17.40ppb
NO2
1.00ppm
CO
AQI 200
Unhealthy
124.87μg/m³
PM2.5
335.30μg/m³
PM10
17.32ppb
O3
1.62ppb
SO2
17.59ppb
NO2
1.00ppm
CO
AQI 225
Very unhealthy
150.18μg/m³
PM2.5
352.11μg/m³
PM10
30.46ppb
O3
1.62ppb
SO2
18.24ppb
NO2
1.08ppm
CO
AQI 221
Very unhealthy
146.42μg/m³
PM2.5
348.46μg/m³
PM10
43.41ppb
O3
1.62ppb
SO2
18.12ppb
NO2
1.08ppm
CO
The air quality data for West Virginia, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Weirton, West Virginia are available every hour.
Weirton, West Virginia experienced its worst air quality at 10:00:00, 2026-07-17.
The best air quality in Weirton, West Virginia was observed at 04:00:00 on 2026-07-18.
The air quality in Weirton, West Virginia right now is Very Unhealthy, with an AQI of 259.
In Weirton, West Virginia, PM2.5 is the most frequently found pollutant.
When air quality in Weirton, West Virginia is compromised, staying indoors and wearing a mask can reduce health risks.
Weirton, West Virginia currently has a PM2.5 concentration of 184.282 μg/m3.
Weirton, West Virginia currently has a PM10 concentration of 366.142 μg/m3.
The current carbon monoxide (CO) level in Weirton, West Virginia is 1.005 ppm.
The current sulfur dioxide (SO2) concentration in Weirton, West Virginia is 1.951 ppb.
Weirton, West Virginia currently has an ozone (O3) concentration of 23.145 ppm.
The current level of nitrogen dioxide (NO2) in Weirton, West Virginia is 15.98 ppb.
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