Stay updated with real-time air quality in South Middleton, 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)
29
Good
South Middleton, Pennsylvania
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.82 μg/m³
0
55
155
255
425
605+
30.96 ppb
0
55
71
86
201
201+
0.25 ppb
0
36
76
186
605
1005+
9.13 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
South Middleton, Pennsylvania
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AQI 31
Good
4.01μg/m³
PM2.5
17.98μg/m³
PM10
33.70ppb
O3
0.23ppb
SO2
6.89ppb
NO2
0.26ppm
CO
AQI 31
Good
4.01μg/m³
PM2.5
17.96μg/m³
PM10
33.63ppb
O3
0.23ppb
SO2
6.97ppb
NO2
0.26ppm
CO
AQI 31
Good
4.81μg/m³
PM2.5
20.80μg/m³
PM10
32.72ppb
O3
0.23ppb
SO2
9.49ppb
NO2
0.26ppm
CO
AQI 22
Good
3.86μg/m³
PM2.5
16.88μg/m³
PM10
16.33ppb
O3
0.14ppb
SO2
8.70ppb
NO2
0.26ppm
CO
AQI 31
Good
4.76μg/m³
PM2.5
16.68μg/m³
PM10
33.60ppb
O3
0.24ppb
SO2
10.81ppb
NO2
0.26ppm
CO
AQI 22
Good
3.83μg/m³
PM2.5
16.67μg/m³
PM10
14.82ppb
O3
0.13ppb
SO2
8.75ppb
NO2
0.26ppm
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 South Middleton, Pennsylvania is updated every hour.
The worst air quality in South Middleton, Pennsylvania in the last 24 hours was observed at 11:00:00 on 2026-03-14.
In the last 24 hrs, the best air quality in South Middleton, Pennsylvania was observed at 07:00:00 on 2026-03-15.
The current air quality in South Middleton, Pennsylvania is 31, categorized as Good based on real-time data.
The most common pollutant in South Middleton, Pennsylvania is O3.
If the air quality in South Middleton, Pennsylvania is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at South Middleton, Pennsylvania is 4.038 μg/m3.
The current PM10 concentration at South Middleton, Pennsylvania is 17.946 μg/m3.
The current carbon monoxide (CO) concentration at South Middleton, Pennsylvania is 0.258 ppm.
The current sulfur dioxide (SO2) concentration at South Middleton, Pennsylvania is 0.227 ppb.
The current ozone (O3) concentration at South Middleton, Pennsylvania is 32.5 ppm.
The current nitrogen dioxide (NO2) concentration at South Middleton, Pennsylvania is 7.463 ppb.
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