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)
30
Good
Lancaster, Pennsylvania
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.05 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.22 μg/m³
0
55
155
255
425
605+
31.74 ppb
0
55
71
86
201
201+
0.74 ppb
0
36
76
186
605
1005+
20.71 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Lancaster, Pennsylvania
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AQI 28
Good
5.27μg/m³
PM2.5
23.22μg/m³
PM10
30.37ppb
O3
0.75ppb
SO2
20.49ppb
NO2
0.25ppm
CO
AQI 29
Good
5.33μg/m³
PM2.5
23.52μg/m³
PM10
30.51ppb
O3
0.74ppb
SO2
20.37ppb
NO2
0.26ppm
CO
AQI 33
Good
6.27μg/m³
PM2.5
30.09μg/m³
PM10
24.95ppb
O3
0.74ppb
SO2
22.05ppb
NO2
0.24ppm
CO
AQI 33
Good
5.73μg/m³
PM2.5
25.43μg/m³
PM10
27.75ppb
O3
0.75ppb
SO2
20.03ppb
NO2
0.28ppm
CO
AQI 33
Good
6.17μg/m³
PM2.5
29.60μg/m³
PM10
28.54ppb
O3
0.73ppb
SO2
21.99ppb
NO2
0.33ppm
CO
AQI 33
Good
5.95μg/m³
PM2.5
28.84μg/m³
PM10
28.73ppb
O3
0.72ppb
SO2
18.41ppb
NO2
0.33ppm
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 02:00:00 on 2026-03-09.
In the last 24 hrs, the best air quality in Lancaster, Pennsylvania was observed at 06:00:00 on 2026-03-09.
The current air quality in Lancaster, Pennsylvania is 30, categorized as Good based on real-time data.
The most common pollutant in Lancaster, Pennsylvania is O3.
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 5.048 μg/m3.
The current PM10 concentration at Lancaster, Pennsylvania is 22.222 μg/m3.
The current carbon monoxide (CO) concentration at Lancaster, Pennsylvania is 0.247 ppm.
The current sulfur dioxide (SO2) concentration at Lancaster, Pennsylvania is 0.744 ppb.
The current ozone (O3) concentration at Lancaster, Pennsylvania is 31.739 ppm.
The current nitrogen dioxide (NO2) concentration at Lancaster, Pennsylvania is 20.713 ppb.
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