Stay updated with real-time air quality in Lower 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)
66
Moderate
Lower Allen, Pennsylvania
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
16.87 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
74.81 μg/m³
0
55
155
255
425
605+
15.98 ppb
0
55
71
86
201
201+
0.56 ppb
0
36
76
186
605
1005+
3.67 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Lower Allen, Pennsylvania
Lower Allen, Pennsylvania
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AQI 66
Moderate
16.95μg/m³
PM2.5
75.19μg/m³
PM10
15.29ppb
O3
0.56ppb
SO2
3.72ppb
NO2
0.22ppm
CO
AQI 66
Moderate
17.03μg/m³
PM2.5
75.51μg/m³
PM10
15.34ppb
O3
0.56ppb
SO2
3.72ppb
NO2
0.22ppm
CO
AQI 66
Moderate
16.80μg/m³
PM2.5
74.47μg/m³
PM10
16.41ppb
O3
0.57ppb
SO2
3.64ppb
NO2
0.22ppm
CO
AQI 66
Moderate
16.74μg/m³
PM2.5
74.22μg/m³
PM10
16.73ppb
O3
0.57ppb
SO2
3.62ppb
NO2
0.22ppm
CO
AQI 66
Moderate
16.94μg/m³
PM2.5
75.11μg/m³
PM10
15.26ppb
O3
0.56ppb
SO2
3.71ppb
NO2
0.22ppm
CO
AQI 56
Moderate
12.09μg/m³
PM2.5
41.91μg/m³
PM10
23.30ppb
O3
0.66ppb
SO2
3.16ppb
NO2
0.22ppm
CO
The air quality data for Pennsylvania, 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 Lower Allen, Pennsylvania are available every hour.
Lower Allen, Pennsylvania experienced its worst air quality at 11:00:00, 2025-12-12.
The best air quality in Lower Allen, Pennsylvania was observed at 09:00:00 on 2025-12-12.
The air quality in Lower Allen, Pennsylvania right now is Moderate, with an AQI of 66.
In Lower Allen, Pennsylvania, PM2.5 is the most frequently found pollutant.
When air quality in Lower Allen, Pennsylvania is compromised, staying indoors and wearing a mask can reduce health risks.
Lower Allen, Pennsylvania currently has a PM2.5 concentration of 16.873 μg/m3.
Lower Allen, Pennsylvania currently has a PM10 concentration of 74.813 μg/m3.
The current carbon monoxide (CO) level in Lower Allen, Pennsylvania is 0.22 ppm.
The current sulfur dioxide (SO2) concentration in Lower Allen, Pennsylvania is 0.565 ppb.
Lower Allen, Pennsylvania currently has an ozone (O3) concentration of 15.977 ppm.
The current level of nitrogen dioxide (NO2) in Lower Allen, Pennsylvania is 3.675 ppb.
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