Stay updated with real-time air quality in Lancaster, Ohio 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)
27
Good
Lancaster, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.86 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.96 μg/m³
0
55
155
255
425
605+
14.79 ppb
0
55
71
86
201
201+
1.69 ppb
0
36
76
186
605
1005+
5.80 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Lancaster, Ohio
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AQI 27
Good
5.22μg/m³
PM2.5
18.94μg/m³
PM10
18.72ppb
O3
1.51ppb
SO2
5.23ppb
NO2
0.28ppm
CO
AQI 27
Good
5.13μg/m³
PM2.5
19.95μg/m³
PM10
17.95ppb
O3
1.49ppb
SO2
5.13ppb
NO2
0.28ppm
CO
AQI 27
Good
4.99μg/m³
PM2.5
15.22μg/m³
PM10
14.51ppb
O3
1.77ppb
SO2
5.61ppb
NO2
0.28ppm
CO
AQI 27
Good
5.21μg/m³
PM2.5
18.87μg/m³
PM10
18.71ppb
O3
1.51ppb
SO2
5.22ppb
NO2
0.28ppm
CO
AQI 27
Good
5.13μg/m³
PM2.5
24.55μg/m³
PM10
13.00ppb
O3
1.38ppb
SO2
4.89ppb
NO2
0.27ppm
CO
AQI 27
Good
5.08μg/m³
PM2.5
10.85μg/m³
PM10
17.96ppb
O3
1.79ppb
SO2
5.20ppb
NO2
0.28ppm
CO
The air quality data for Ohio, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Lancaster, Ohio are available every hour.
Lancaster, Ohio experienced its worst air quality at 02:00:00, 2026-09-06.
The best air quality in Lancaster, Ohio was observed at 06:00:00 on 2026-09-06.
The air quality in Lancaster, Ohio right now is Good, with an AQI of 27.
In Lancaster, Ohio, PM2.5 is the most frequently found pollutant.
When air quality in Lancaster, Ohio is compromised, staying indoors and wearing a mask can reduce health risks.
Lancaster, Ohio currently has a PM2.5 concentration of 4.864 μg/m3.
Lancaster, Ohio currently has a PM10 concentration of 16.964 μg/m3.
The current carbon monoxide (CO) level in Lancaster, Ohio is 0.272 ppm.
The current sulfur dioxide (SO2) concentration in Lancaster, Ohio is 1.69 ppb.
Lancaster, Ohio currently has an ozone (O3) concentration of 14.794 ppm.
The current level of nitrogen dioxide (NO2) in Lancaster, Ohio is 5.805 ppb.
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