Stay updated with real-time air quality in Middle Smithfield, 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)
66
Moderate
Middle Smithfield, Pennsylvania
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
17.01 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
84.81 μg/m³
0
55
155
255
425
605+
18.39 ppb
0
55
71
86
201
201+
0.79 ppb
0
36
76
186
605
1005+
11.94 ppb
0
54
101
361
1250
2050+
0.74 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Middle Smithfield, Pennsylvania
Middle Smithfield, Pennsylvania
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AQI 58
Moderate
13.32μg/m³
PM2.5
56.35μg/m³
PM10
12.27ppb
O3
0.78ppb
SO2
13.98ppb
NO2
0.74ppm
CO
AQI 69
Moderate
19.15μg/m³
PM2.5
73.01μg/m³
PM10
16.60ppb
O3
0.80ppb
SO2
12.38ppb
NO2
0.72ppm
CO
AQI 58
Moderate
12.51μg/m³
PM2.5
55.86μg/m³
PM10
18.11ppb
O3
0.80ppb
SO2
11.87ppb
NO2
0.72ppm
CO
AQI 60
Moderate
13.93μg/m³
PM2.5
56.43μg/m³
PM10
12.66ppb
O3
0.76ppb
SO2
13.41ppb
NO2
0.73ppm
CO
AQI 56
Moderate
12.26μg/m³
PM2.5
52.70μg/m³
PM10
20.62ppb
O3
0.78ppb
SO2
10.37ppb
NO2
0.72ppm
CO
AQI 56
Moderate
11.62μg/m³
PM2.5
52.57μg/m³
PM10
19.58ppb
O3
0.80ppb
SO2
10.44ppb
NO2
0.72ppm
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 Middle Smithfield, Pennsylvania is updated every hour for accuracy.
In the past 24 hours, the air quality in Middle Smithfield, Pennsylvania was at its worst at 06:00:00 on 2025-12-07.
In the last 24 hours, the best air quality in Middle Smithfield, Pennsylvania was observed at 07:00:00 on 2025-12-06.
As of now, the AQI in Middle Smithfield, Pennsylvania is 66, indicating Moderate conditions.
Middle Smithfield, Pennsylvania air has the highest levels of PM10.
Poor air quality in Middle Smithfield, Pennsylvania means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Middle Smithfield, Pennsylvania are currently 17.011 μg/m3.
The PM10 concentration in Middle Smithfield, Pennsylvania is 84.807 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Middle Smithfield, Pennsylvania is 0.742 ppm.
Currently, Middle Smithfield, Pennsylvania has a sulfur dioxide (SO2) concentration of 0.785 ppb.
The current ozone (O3) level in Middle Smithfield, Pennsylvania at the moment is 18.389 ppm.
Nitrogen dioxide (NO2) level in Middle Smithfield, Pennsylvania at the moment is 11.94 ppb.
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