Stay updated with real-time air quality in Upper Merion, 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)
67
Moderate
Upper Merion, Pennsylvania
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
17.64 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
77.87 μg/m³
0
55
155
255
425
605+
7.19 ppb
0
55
71
86
201
201+
0.75 ppb
0
36
76
186
605
1005+
17.15 ppb
0
54
101
361
1250
2050+
0.51 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Upper Merion, Pennsylvania
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AQI 67
Moderate
17.75μg/m³
PM2.5
78.12μg/m³
PM10
7.96ppb
O3
0.52ppb
SO2
15.78ppb
NO2
0.44ppm
CO
AQI 67
Moderate
18.43μg/m³
PM2.5
81.09μg/m³
PM10
7.82ppb
O3
0.56ppb
SO2
15.01ppb
NO2
0.45ppm
CO
AQI 67
Moderate
17.65μg/m³
PM2.5
77.65μg/m³
PM10
7.97ppb
O3
0.52ppb
SO2
15.83ppb
NO2
0.44ppm
CO
AQI 69
Moderate
18.94μg/m³
PM2.5
83.32μg/m³
PM10
7.68ppb
O3
0.59ppb
SO2
14.48ppb
NO2
0.46ppm
CO
AQI 67
Moderate
18.10μg/m³
PM2.5
79.63μg/m³
PM10
7.91ppb
O3
0.53ppb
SO2
15.61ppb
NO2
0.44ppm
CO
AQI 56
Moderate
11.52μg/m³
PM2.5
54.83μg/m³
PM10
16.11ppb
O3
0.42ppb
SO2
12.00ppb
NO2
0.43ppm
CO
Air quality measurements for Pennsylvania, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Upper Merion, Pennsylvania is updated on an hourly basis.
The worst air quality in Upper Merion, Pennsylvania was recorded at 08:00:00 on 2026-03-08.
The best air quality in Upper Merion, Pennsylvania was recorded at 05:00:00 on 2026-03-07.
The real-time air quality index in Upper Merion, Pennsylvania is 67, currently categorized as Moderate.
The most common pollutant in Upper Merion, Pennsylvania is PM2.5.
If the air quality in Upper Merion, Pennsylvania is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Upper Merion, Pennsylvania at present are 18.394 μg/m3.
The current PM10 levels in Upper Merion, Pennsylvania are 80.922 μg/m3.
The current carbon monoxide (CO) level in Upper Merion, Pennsylvania is 0.449 ppm.
The current sulfur dioxide (SO2) levels in Upper Merion, Pennsylvania are 0.559 ppb.
The current ozone (O3) levels at Upper Merion, Pennsylvania is 7.812 ppm.
The current nitrogen dioxide (NO2) levels at Upper Merion, Pennsylvania is 15.02 ppb.
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