Stay updated with real-time air quality in Lancaster, 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)
50
Good
Lancaster, Pennsylvania
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.08 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
54.21 μg/m³
0
55
155
255
425
605+
22.87 ppb
0
55
71
86
201
201+
0.89 ppb
0
36
76
186
605
1005+
5.73 ppb
0
54
101
361
1250
2050+
0.39 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Lancaster, Pennsylvania
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AQI 58
Moderate
13.06μg/m³
PM2.5
68.76μg/m³
PM10
21.77ppb
O3
0.77ppb
SO2
3.46ppb
NO2
0.36ppm
CO
AQI 58
Moderate
13.11μg/m³
PM2.5
69.32μg/m³
PM10
21.72ppb
O3
0.77ppb
SO2
3.49ppb
NO2
0.36ppm
CO
AQI 38
Good
6.58μg/m³
PM2.5
20.86μg/m³
PM10
19.46ppb
O3
0.80ppb
SO2
2.97ppb
NO2
0.28ppm
CO
AQI 56
Moderate
12.37μg/m³
PM2.5
66.48μg/m³
PM10
21.22ppb
O3
0.77ppb
SO2
3.77ppb
NO2
0.36ppm
CO
AQI 38
Good
7.08μg/m³
PM2.5
18.20μg/m³
PM10
22.79ppb
O3
0.80ppb
SO2
2.98ppb
NO2
0.28ppm
CO
AQI 44
Good
8.37μg/m³
PM2.5
31.18μg/m³
PM10
25.39ppb
O3
0.80ppb
SO2
2.98ppb
NO2
0.28ppm
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 Lancaster, Pennsylvania is updated every hour.
The worst air quality in Lancaster, Pennsylvania in the last 24 hours was observed at 12:00:00 on 2026-11-13.
In the last 24 hrs, the best air quality in Lancaster, Pennsylvania was observed at 06:00:00 on 2026-11-12.
The current air quality in Lancaster, Pennsylvania is 50, categorized as Good based on real-time data.
The most common pollutant in Lancaster, Pennsylvania is PM10.
If the air quality in Lancaster, Pennsylvania is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Lancaster, Pennsylvania is 9.08 μg/m3.
The current PM10 concentration at Lancaster, Pennsylvania is 54.214 μg/m3.
The current carbon monoxide (CO) concentration at Lancaster, Pennsylvania is 0.387 ppm.
The current sulfur dioxide (SO2) concentration at Lancaster, Pennsylvania is 0.892 ppb.
The current ozone (O3) concentration at Lancaster, Pennsylvania is 22.866 ppm.
The current nitrogen dioxide (NO2) concentration at Lancaster, Pennsylvania is 5.726 ppb.
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