Stay updated with real-time air quality in Lower 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)
62
Moderate
Lower Merion, Pennsylvania
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
15.14 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
60.96 μg/m³
0
55
155
255
425
605+
51.77 ppb
0
55
71
86
201
201+
0.42 ppb
0
36
76
186
605
1005+
4.51 ppb
0
54
101
361
1250
2050+
0.40 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Lower Merion, Pennsylvania
Lower Merion, Pennsylvania
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AQI 64
Moderate
16.18μg/m³
PM2.5
66.62μg/m³
PM10
50.40ppb
O3
0.35ppb
SO2
4.07ppb
NO2
0.35ppm
CO
AQI 66
Moderate
16.90μg/m³
PM2.5
75.32μg/m³
PM10
55.22ppb
O3
0.36ppb
SO2
3.82ppb
NO2
0.35ppm
CO
AQI 64
Moderate
16.01μg/m³
PM2.5
72.10μg/m³
PM10
50.15ppb
O3
0.36ppb
SO2
3.48ppb
NO2
0.37ppm
CO
AQI 60
Moderate
13.91μg/m³
PM2.5
54.57μg/m³
PM10
49.31ppb
O3
0.35ppb
SO2
4.10ppb
NO2
0.34ppm
CO
AQI 66
Moderate
17.39μg/m³
PM2.5
76.80μg/m³
PM10
58.84ppb
O3
0.36ppb
SO2
4.08ppb
NO2
0.34ppm
CO
AQI 64
Moderate
16.30μg/m³
PM2.5
73.50μg/m³
PM10
50.71ppb
O3
0.37ppb
SO2
3.39ppb
NO2
0.34ppm
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 Lower Merion, Pennsylvania is updated every hour.
The worst air quality in Lower Merion, Pennsylvania in the last 24 hours was observed at 07:00:00 on 2025-06-06.
In the last 24 hrs, the best air quality in Lower Merion, Pennsylvania was observed at 10:00:00 on 2025-06-06.
The current air quality in Lower Merion, Pennsylvania is 62, categorized as Moderate based on real-time data.
The most common pollutant in Lower Merion, Pennsylvania is PM2.5.
If the air quality in Lower Merion, Pennsylvania is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Lower Merion, Pennsylvania is 15.138 μg/m3.
The current PM10 concentration at Lower Merion, Pennsylvania is 60.958 μg/m3.
The current carbon monoxide (CO) concentration at Lower Merion, Pennsylvania is 0.399 ppm.
The current sulfur dioxide (SO2) concentration at Lower Merion, Pennsylvania is 0.42 ppb.
The current ozone (O3) concentration at Lower Merion, Pennsylvania is 51.769 ppm.
The current nitrogen dioxide (NO2) concentration at Lower Merion, Pennsylvania is 4.508 ppb.
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