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)
33
Good
Lancaster, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.86 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.66 μg/m³
0
55
155
255
425
605+
21.46 ppb
0
55
71
86
201
201+
1.63 ppb
0
36
76
186
605
1005+
27.57 ppb
0
54
101
361
1250
2050+
0.38 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Lancaster, Ohio
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AQI 23
Good
3.45μg/m³
PM2.5
12.71μg/m³
PM10
18.80ppb
O3
1.67ppb
SO2
24.36ppb
NO2
0.35ppm
CO
AQI 22
Good
3.48μg/m³
PM2.5
12.82μg/m³
PM10
21.02ppb
O3
1.68ppb
SO2
23.39ppb
NO2
0.35ppm
CO
AQI 23
Good
3.37μg/m³
PM2.5
11.31μg/m³
PM10
25.34ppb
O3
1.68ppb
SO2
22.62ppb
NO2
0.34ppm
CO
AQI 23
Good
3.41μg/m³
PM2.5
12.49μg/m³
PM10
19.04ppb
O3
1.67ppb
SO2
24.37ppb
NO2
0.35ppm
CO
AQI 27
Good
5.39μg/m³
PM2.5
18.90μg/m³
PM10
24.00ppb
O3
1.68ppb
SO2
16.99ppb
NO2
0.33ppm
CO
AQI 24
Good
4.00μg/m³
PM2.5
12.76μg/m³
PM10
20.01ppb
O3
1.68ppb
SO2
24.64ppb
NO2
0.35ppm
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 08:00:00, 2026-03-12.
The best air quality in Lancaster, Ohio was observed at 04:00:00 on 2026-03-13.
The air quality in Lancaster, Ohio right now is Good, with an AQI of 33.
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 5.86 μg/m3.
Lancaster, Ohio currently has a PM10 concentration of 13.664 μg/m3.
The current carbon monoxide (CO) level in Lancaster, Ohio is 0.378 ppm.
The current sulfur dioxide (SO2) concentration in Lancaster, Ohio is 1.626 ppb.
Lancaster, Ohio currently has an ozone (O3) concentration of 21.463 ppm.
The current level of nitrogen dioxide (NO2) in Lancaster, Ohio is 27.573 ppb.
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