Stay updated with real-time air quality in Upper Darby, 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)
44
Good
Upper Darby, Pennsylvania
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.07 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
36.06 μg/m³
0
55
155
255
425
605+
27.37 ppb
0
55
71
86
201
201+
0.70 ppb
0
36
76
186
605
1005+
14.06 ppb
0
54
101
361
1250
2050+
0.43 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Upper Darby, Pennsylvania
Upper Darby, Pennsylvania
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AQI 49
Good
9.30μg/m³
PM2.5
41.53μg/m³
PM10
26.47ppb
O3
0.73ppb
SO2
14.10ppb
NO2
0.41ppm
CO
AQI 49
Good
9.30μg/m³
PM2.5
41.53μg/m³
PM10
26.47ppb
O3
0.73ppb
SO2
14.10ppb
NO2
0.41ppm
CO
AQI 49
Good
8.76μg/m³
PM2.5
39.10μg/m³
PM10
27.83ppb
O3
0.70ppb
SO2
14.57ppb
NO2
0.40ppm
CO
AQI 49
Good
9.00μg/m³
PM2.5
40.39μg/m³
PM10
24.23ppb
O3
0.61ppb
SO2
14.14ppb
NO2
0.38ppm
CO
AQI 49
Good
8.63μg/m³
PM2.5
36.72μg/m³
PM10
29.61ppb
O3
0.59ppb
SO2
14.24ppb
NO2
0.37ppm
CO
AQI 49
Good
8.55μg/m³
PM2.5
37.86μg/m³
PM10
26.31ppb
O3
0.70ppb
SO2
14.88ppb
NO2
0.47ppm
CO
Air quality data and pollutant measurements for Pennsylvania, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Upper Darby, Pennsylvania is updated every hour.
The worst air quality in Upper Darby, Pennsylvania in the last 24 hours was observed at 04:00:00 on 2026-01-22.
In the last 24 hrs, the best air quality in Upper Darby, Pennsylvania was observed at 07:00:00 on 2026-01-22.
The current air quality in Upper Darby, Pennsylvania is 44, categorized as Good based on real-time data.
The most common pollutant in Upper Darby, Pennsylvania is PM2.5.
If the air quality in Upper Darby, Pennsylvania is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Upper Darby, Pennsylvania is 8.074 μg/m3.
The current PM10 concentration at Upper Darby, Pennsylvania is 36.057 μg/m3.
The current carbon monoxide (CO) concentration at Upper Darby, Pennsylvania is 0.426 ppm.
The current sulfur dioxide (SO2) concentration at Upper Darby, Pennsylvania is 0.696 ppb.
The current ozone (O3) concentration at Upper Darby, Pennsylvania is 27.373 ppm.
The current nitrogen dioxide (NO2) concentration at Upper Darby, Pennsylvania is 14.064 ppb.
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