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

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.99 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
40.18 μg/m³
0
55
155
255
425
605+
24.39 ppb
0
55
71
86
201
201+
0.30 ppb
0
36
76
186
605
1005+
11.01 ppb
0
54
101
361
1250
2050+
0.33 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Darby Borough, Pennsylvania
Darby Borough, Pennsylvania
Scroll To Air Quality MapLoading...
AQI 49
Good
8.99μg/m³
PM2.5
40.18μg/m³
PM10
24.39ppb
O3
0.30ppb
SO2
11.01ppb
NO2
0.33ppm
CO
AQI 49
Good
9.18μg/m³
PM2.5
41.23μg/m³
PM10
24.75ppb
O3
0.37ppb
SO2
11.16ppb
NO2
0.33ppm
CO
AQI 49
Good
9.18μg/m³
PM2.5
41.23μg/m³
PM10
24.75ppb
O3
0.37ppb
SO2
11.16ppb
NO2
0.33ppm
CO
AQI 49
Good
9.46μg/m³
PM2.5
42.33μg/m³
PM10
25.88ppb
O3
0.31ppb
SO2
11.39ppb
NO2
0.35ppm
CO
AQI 49
Good
8.62μg/m³
PM2.5
38.00μg/m³
PM10
24.75ppb
O3
0.29ppb
SO2
9.00ppb
NO2
0.31ppm
CO
AQI 52
Moderate
9.80μg/m³
PM2.5
43.80μg/m³
PM10
27.04ppb
O3
0.39ppb
SO2
10.46ppb
NO2
0.28ppm
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 Darby Borough, Pennsylvania are available every hour.
Darby Borough, Pennsylvania experienced its worst air quality at 10:00:00, 2026-07-12.
The best air quality in Darby Borough, Pennsylvania was observed at 12:00:00 on 2026-07-13.
The air quality in Darby Borough, Pennsylvania right now is Good, with an AQI of 49.
In Darby Borough, Pennsylvania, PM2.5 is the most frequently found pollutant.
When air quality in Darby Borough, Pennsylvania is compromised, staying indoors and wearing a mask can reduce health risks.
Darby Borough, Pennsylvania currently has a PM2.5 concentration of 8.987 μg/m3.
Darby Borough, Pennsylvania currently has a PM10 concentration of 40.184 μg/m3.
The current carbon monoxide (CO) level in Darby Borough, Pennsylvania is 0.333 ppm.
The current sulfur dioxide (SO2) concentration in Darby Borough, Pennsylvania is 0.299 ppb.
Darby Borough, Pennsylvania currently has an ozone (O3) concentration of 24.391 ppm.
The current level of nitrogen dioxide (NO2) in Darby Borough, Pennsylvania is 11.012 ppb.
All Rights Reserved © Ambee Inc. 2025