Stay updated with real-time air quality in Lima, 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)
22
Good
Lima, Ohio
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.09 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.93 μg/m³
0
55
155
255
425
605+
22.97 ppb
0
55
71
86
201
201+
1.01 ppb
0
36
76
186
605
1005+
6.63 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Lima, Ohio
Lima, Ohio
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AQI 20
Good
3.02μg/m³
PM2.5
11.99μg/m³
PM10
21.54ppb
O3
2.10ppb
SO2
5.38ppb
NO2
0.19ppm
CO
AQI 22
Good
2.41μg/m³
PM2.5
9.89μg/m³
PM10
23.56ppb
O3
0.79ppb
SO2
2.57ppb
NO2
0.14ppm
CO
AQI 19
Good
3.26μg/m³
PM2.5
12.23μg/m³
PM10
19.99ppb
O3
0.93ppb
SO2
6.95ppb
NO2
0.15ppm
CO
AQI 22
Good
3.71μg/m³
PM2.5
15.65μg/m³
PM10
20.12ppb
O3
2.33ppb
SO2
5.78ppb
NO2
0.17ppm
CO
AQI 19
Good
3.48μg/m³
PM2.5
18.43μg/m³
PM10
21.16ppb
O3
2.11ppb
SO2
6.66ppb
NO2
0.15ppm
CO
AQI 19
Good
1.94μg/m³
PM2.5
7.40μg/m³
PM10
20.32ppb
O3
0.71ppb
SO2
3.79ppb
NO2
0.14ppm
CO
Air quality measurements for Ohio, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Lima, Ohio is updated on an hourly basis.
The worst air quality in Lima, Ohio was recorded at 12:00:00 on 2025-10-22.
The best air quality in Lima, Ohio was recorded at 09:00:00 on 2025-10-22.
The real-time air quality index in Lima, Ohio is 22, currently categorized as Good.
The most common pollutant in Lima, Ohio is PM2.5.
If the air quality in Lima, Ohio is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Lima, Ohio at present are 4.088 μg/m3.
The current PM10 levels in Lima, Ohio are 17.935 μg/m3.
The current carbon monoxide (CO) level in Lima, Ohio is 0.147 ppm.
The current sulfur dioxide (SO2) levels in Lima, Ohio are 1.011 ppb.
The current ozone (O3) levels at Lima, Ohio is 22.967 ppm.
The current nitrogen dioxide (NO2) levels at Lima, Ohio is 6.632 ppb.
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