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)
27
Good
Monroeville, Pennsylvania
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.55 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.52 μg/m³
0
55
155
255
425
605+
16.47 ppb
0
55
71
86
201
201+
1.21 ppb
0
36
76
186
605
1005+
13.84 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Monroeville, Pennsylvania
Monroeville, Pennsylvania
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AQI 52
Moderate
9.77μg/m³
PM2.5
43.15μg/m³
PM10
18.21ppb
O3
2.24ppb
SO2
5.66ppb
NO2
0.27ppm
CO
AQI 44
Good
8.26μg/m³
PM2.5
36.26μg/m³
PM10
18.28ppb
O3
2.24ppb
SO2
5.65ppb
NO2
0.27ppm
CO
AQI 54
Moderate
11.13μg/m³
PM2.5
49.30μg/m³
PM10
16.95ppb
O3
2.22ppb
SO2
5.69ppb
NO2
0.27ppm
CO
AQI 38
Good
7.47μg/m³
PM2.5
32.18μg/m³
PM10
19.04ppb
O3
2.14ppb
SO2
5.58ppb
NO2
0.24ppm
CO
AQI 54
Moderate
10.90μg/m³
PM2.5
48.32μg/m³
PM10
17.95ppb
O3
2.23ppb
SO2
5.67ppb
NO2
0.27ppm
CO
AQI 38
Good
7.27μg/m³
PM2.5
35.49μg/m³
PM10
17.97ppb
O3
1.95ppb
SO2
5.76ppb
NO2
0.23ppm
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 2025-10-20.
The best air quality in Monroeville, Pennsylvania was recorded at 01:00:00 on 2025-10-21.
The real-time air quality index in Monroeville, Pennsylvania is 27, currently categorized as Good.
The most common pollutant in Monroeville, Pennsylvania is PM2.5.
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 4.546 μg/m3.
The current PM10 levels in Monroeville, Pennsylvania are 20.517 μg/m3.
The current carbon monoxide (CO) level in Monroeville, Pennsylvania is 0.271 ppm.
The current sulfur dioxide (SO2) levels in Monroeville, Pennsylvania are 1.207 ppb.
The current ozone (O3) levels at Monroeville, Pennsylvania is 16.472 ppm.
The current nitrogen dioxide (NO2) levels at Monroeville, Pennsylvania is 13.84 ppb.
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