Stay updated with real-time air quality in Westtown, 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
Westtown, Pennsylvania
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
9.30 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
37.27 μg/m³
0
55
155
255
425
605+
35.62 ppb
0
55
71
86
201
201+
0.62 ppb
0
36
76
186
605
1005+
6.68 ppb
0
54
101
361
1250
2050+
0.35 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Westtown, Pennsylvania
Westtown, Pennsylvania
Scroll To Air Quality MapLoading...
AQI 61
Moderate
12.35μg/m³
PM2.5
74.72μg/m³
PM10
42.48ppb
O3
0.51ppb
SO2
3.66ppb
NO2
0.39ppm
CO
AQI 61
Moderate
12.35μg/m³
PM2.5
74.72μg/m³
PM10
42.48ppb
O3
0.51ppb
SO2
3.66ppb
NO2
0.39ppm
CO
AQI 54
Moderate
11.49μg/m³
PM2.5
47.00μg/m³
PM10
41.07ppb
O3
0.55ppb
SO2
3.58ppb
NO2
0.42ppm
CO
AQI 61
Moderate
12.35μg/m³
PM2.5
74.72μg/m³
PM10
42.48ppb
O3
0.51ppb
SO2
3.66ppb
NO2
0.39ppm
CO
AQI 61
Moderate
12.35μg/m³
PM2.5
74.72μg/m³
PM10
42.48ppb
O3
0.51ppb
SO2
3.66ppb
NO2
0.39ppm
CO
AQI 49
Good
8.64μg/m³
PM2.5
32.64μg/m³
PM10
35.74ppb
O3
0.54ppb
SO2
3.27ppb
NO2
0.40ppm
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 Westtown, Pennsylvania is updated every hour.
The worst air quality in Westtown, Pennsylvania in the last 24 hours was observed at 07:00:00 on 2025-07-25.
In the last 24 hrs, the best air quality in Westtown, Pennsylvania was observed at 09:00:00 on 2025-07-26.
The current air quality in Westtown, Pennsylvania is 54, categorized as Moderate based on real-time data.
The most common pollutant in Westtown, Pennsylvania is PM2.5.
If the air quality in Westtown, Pennsylvania is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Westtown, Pennsylvania is 11.244 μg/m3.
The current PM10 concentration at Westtown, Pennsylvania is 47.485 μg/m3.
The current carbon monoxide (CO) concentration at Westtown, Pennsylvania is 0.394 ppm.
The current sulfur dioxide (SO2) concentration at Westtown, Pennsylvania is 0.519 ppb.
The current ozone (O3) concentration at Westtown, Pennsylvania is 43.242 ppm.
The current nitrogen dioxide (NO2) concentration at Westtown, Pennsylvania is 3.736 ppb.
All Rights Reserved © Ambee Inc. 2025