Stay updated with real-time air quality in Upper Allen, 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)
49
Good
Upper Allen, Pennsylvania
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.71 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
52.77 μg/m³
0
55
155
255
425
605+
13.76 ppb
0
55
71
86
201
201+
0.82 ppb
0
36
76
186
605
1005+
13.92 ppb
0
54
101
361
1250
2050+
0.59 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Upper Allen, Pennsylvania
Upper Allen, Pennsylvania
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AQI 38
Good
6.61μg/m³
PM2.5
29.41μg/m³
PM10
11.10ppb
O3
0.81ppb
SO2
15.15ppb
NO2
0.39ppm
CO
AQI 38
Good
6.85μg/m³
PM2.5
30.52μg/m³
PM10
10.63ppb
O3
0.82ppb
SO2
15.23ppb
NO2
0.39ppm
CO
AQI 38
Good
7.15μg/m³
PM2.5
31.90μg/m³
PM10
9.80ppb
O3
0.82ppb
SO2
15.48ppb
NO2
0.39ppm
CO
AQI 33
Good
6.43μg/m³
PM2.5
28.59μg/m³
PM10
11.44ppb
O3
0.81ppb
SO2
15.09ppb
NO2
0.39ppm
CO
AQI 22
Good
3.54μg/m³
PM2.5
15.48μg/m³
PM10
22.65ppb
O3
0.77ppb
SO2
11.15ppb
NO2
0.39ppm
CO
AQI 38
Good
7.18μg/m³
PM2.5
32.00μg/m³
PM10
9.93ppb
O3
0.82ppb
SO2
15.39ppb
NO2
0.39ppm
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 Upper Allen, Pennsylvania is updated on an hourly basis.
The worst air quality in Upper Allen, Pennsylvania was recorded at 02:00:00 on 2026-01-22.
The best air quality in Upper Allen, Pennsylvania was recorded at 11:00:00 on 2026-01-23.
The real-time air quality index in Upper Allen, Pennsylvania is 33, currently categorized as Good.
The most common pollutant in Upper Allen, Pennsylvania is PM2.5.
If the air quality in Upper Allen, Pennsylvania is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Upper Allen, Pennsylvania at present are 5.741 μg/m3.
The current PM10 levels in Upper Allen, Pennsylvania are 22.31 μg/m3.
The current carbon monoxide (CO) level in Upper Allen, Pennsylvania is 0.391 ppm.
The current sulfur dioxide (SO2) levels in Upper Allen, Pennsylvania are 0.818 ppb.
The current ozone (O3) levels at Upper Allen, Pennsylvania is 13.528 ppm.
The current nitrogen dioxide (NO2) levels at Upper Allen, Pennsylvania is 14.748 ppb.
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