Stay updated with real-time air quality in Chestnuthill, 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)
21
Good
Chestnuthill, Pennsylvania
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.75 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.51 μg/m³
0
55
155
255
425
605+
22.52 ppb
0
55
71
86
201
201+
0.60 ppb
0
36
76
186
605
1005+
8.32 ppb
0
54
101
361
1250
2050+
0.39 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Chestnuthill, Pennsylvania
Chestnuthill, Pennsylvania
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AQI 21
Good
1.27μg/m³
PM2.5
10.25μg/m³
PM10
23.05ppb
O3
0.57ppb
SO2
11.21ppb
NO2
0.39ppm
CO
AQI 19
Good
1.81μg/m³
PM2.5
10.29μg/m³
PM10
21.25ppb
O3
0.56ppb
SO2
12.76ppb
NO2
0.39ppm
CO
AQI 21
Good
1.79μg/m³
PM2.5
8.08μg/m³
PM10
23.40ppb
O3
0.57ppb
SO2
11.47ppb
NO2
0.39ppm
CO
AQI 21
Good
1.79μg/m³
PM2.5
8.08μg/m³
PM10
23.40ppb
O3
0.57ppb
SO2
11.47ppb
NO2
0.39ppm
CO
AQI 20
Good
1.66μg/m³
PM2.5
9.39μg/m³
PM10
21.62ppb
O3
0.56ppb
SO2
12.88ppb
NO2
0.39ppm
CO
AQI 20
Good
1.68μg/m³
PM2.5
9.52μg/m³
PM10
22.02ppb
O3
0.56ppb
SO2
12.73ppb
NO2
0.39ppm
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 Chestnuthill, Pennsylvania is updated every hour for accuracy.
In the past 24 hours, the air quality in Chestnuthill, Pennsylvania was at its worst at 07:00:00 on 2026-11-12.
In the last 24 hours, the best air quality in Chestnuthill, Pennsylvania was observed at 01:00:00 on 2026-11-13.
As of now, the AQI in Chestnuthill, Pennsylvania is 21, indicating Good conditions.
Chestnuthill, Pennsylvania air has the highest levels of O3.
Poor air quality in Chestnuthill, Pennsylvania means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Chestnuthill, Pennsylvania are currently 2.747 μg/m3.
The PM10 concentration in Chestnuthill, Pennsylvania is 14.507 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Chestnuthill, Pennsylvania is 0.388 ppm.
Currently, Chestnuthill, Pennsylvania has a sulfur dioxide (SO2) concentration of 0.602 ppb.
The current ozone (O3) level in Chestnuthill, Pennsylvania at the moment is 22.522 ppm.
Nitrogen dioxide (NO2) level in Chestnuthill, Pennsylvania at the moment is 8.318 ppb.
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