Stay updated with real-time air quality in Monroeville, Pennsylvania 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)
40
Good
Monroeville, Pennsylvania
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.81 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.33 μg/m³
0
55
155
255
425
605+
42.70 ppb
0
55
71
86
201
201+
0.92 ppb
0
36
76
186
605
1005+
9.08 ppb
0
54
101
361
1250
2050+
0.34 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Very high
Monroeville, Pennsylvania
Monroeville, Pennsylvania
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AQI 52
Moderate
10.37μg/m³
PM2.5
46.13μg/m³
PM10
32.45ppb
O3
2.71ppb
SO2
17.51ppb
NO2
0.32ppm
CO
AQI 52
Moderate
10.36μg/m³
PM2.5
46.09μg/m³
PM10
34.10ppb
O3
2.71ppb
SO2
19.18ppb
NO2
0.33ppm
CO
AQI 52
Moderate
10.45μg/m³
PM2.5
45.94μg/m³
PM10
30.08ppb
O3
2.70ppb
SO2
19.13ppb
NO2
0.33ppm
CO
AQI 52
Moderate
10.24μg/m³
PM2.5
45.03μg/m³
PM10
27.98ppb
O3
2.81ppb
SO2
14.65ppb
NO2
0.30ppm
CO
AQI 52
Moderate
10.16μg/m³
PM2.5
44.95μg/m³
PM10
34.84ppb
O3
2.74ppb
SO2
21.59ppb
NO2
0.35ppm
CO
AQI 52
Moderate
10.42μg/m³
PM2.5
46.12μg/m³
PM10
24.91ppb
O3
2.93ppb
SO2
14.03ppb
NO2
0.30ppm
CO
Air quality measurements for Pennsylvania, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Monroeville, Pennsylvania is updated on an hourly basis.
The worst air quality in Monroeville, Pennsylvania was recorded at 10:00:00 on 2026-04-23.
The best air quality in Monroeville, Pennsylvania was recorded at 11:00:00 on 2026-04-23.
The real-time air quality index in Monroeville, Pennsylvania is 40, currently categorized as Good.
The most common pollutant in Monroeville, Pennsylvania is O3.
If the air quality in Monroeville, Pennsylvania is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Monroeville, Pennsylvania at present are 6.812 μg/m3.
The current PM10 levels in Monroeville, Pennsylvania are 30.331 μg/m3.
The current carbon monoxide (CO) level in Monroeville, Pennsylvania is 0.336 ppm.
The current sulfur dioxide (SO2) levels in Monroeville, Pennsylvania are 0.916 ppb.
The current ozone (O3) levels at Monroeville, Pennsylvania is 42.697 ppm.
The current nitrogen dioxide (NO2) levels at Monroeville, Pennsylvania is 9.08 ppb.
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