Stay updated with real-time air quality in Allentown, 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)
90
Moderate
Allentown, Pennsylvania
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
29.70 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
128.02 μg/m³
0
55
155
255
425
605+
5.70 ppb
0
55
71
86
201
201+
0.66 ppb
0
36
76
186
605
1005+
15.49 ppb
0
54
101
361
1250
2050+
0.71 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Allentown, Pennsylvania
Allentown, Pennsylvania
Scroll To Air Quality MapLoading...
AQI 88
Moderate
28.94μg/m³
PM2.5
126.26μg/m³
PM10
11.14ppb
O3
0.67ppb
SO2
16.75ppb
NO2
0.40ppm
CO
AQI 86
Moderate
27.75μg/m³
PM2.5
120.39μg/m³
PM10
11.84ppb
O3
0.68ppb
SO2
16.73ppb
NO2
0.40ppm
CO
AQI 86
Moderate
27.65μg/m³
PM2.5
120.25μg/m³
PM10
12.02ppb
O3
0.67ppb
SO2
16.95ppb
NO2
0.40ppm
CO
AQI 86
Moderate
27.73μg/m³
PM2.5
120.31μg/m³
PM10
11.73ppb
O3
0.68ppb
SO2
17.02ppb
NO2
0.40ppm
CO
AQI 84
Moderate
26.77μg/m³
PM2.5
116.66μg/m³
PM10
13.51ppb
O3
0.66ppb
SO2
18.77ppb
NO2
0.40ppm
CO
AQI 86
Moderate
27.80μg/m³
PM2.5
121.10μg/m³
PM10
12.10ppb
O3
0.67ppb
SO2
17.55ppb
NO2
0.40ppm
CO
Air quality and pollutant data for Pennsylvania, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Allentown, Pennsylvania is updated every hour for accuracy.
In the past 24 hours, the air quality in Allentown, Pennsylvania was at its worst at 12:00:00 on 2025-12-07.
In the last 24 hours, the best air quality in Allentown, Pennsylvania was observed at 01:00:00 on 2025-12-06.
As of now, the AQI in Allentown, Pennsylvania is 88, indicating Moderate conditions.
Allentown, Pennsylvania air has the highest levels of PM2.5.
Poor air quality in Allentown, Pennsylvania means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Allentown, Pennsylvania are currently 29.238 μg/m3.
The PM10 concentration in Allentown, Pennsylvania is 127.437 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Allentown, Pennsylvania is 0.433 ppm.
Currently, Allentown, Pennsylvania has a sulfur dioxide (SO2) concentration of 0.795 ppb.
The current ozone (O3) level in Allentown, Pennsylvania at the moment is 7.303 ppm.
Nitrogen dioxide (NO2) level in Allentown, Pennsylvania at the moment is 15.661 ppb.
All Rights Reserved © Ambee Inc. 2025