Stay updated with real-time air quality in London, 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)
79
Moderate
London, Ohio
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
24.33 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
88.07 μg/m³
0
55
155
255
425
605+
48.77 ppb
0
55
71
86
201
201+
1.25 ppb
0
36
76
186
605
1005+
15.48 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
London, Ohio
London, Ohio
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AQI 88
Moderate
29.09μg/m³
PM2.5
80.84μg/m³
PM10
52.52ppb
O3
1.25ppb
SO2
13.43ppb
NO2
0.13ppm
CO
AQI 92
Moderate
30.85μg/m³
PM2.5
56.33μg/m³
PM10
53.62ppb
O3
1.29ppb
SO2
14.07ppb
NO2
0.16ppm
CO
AQI 82
Moderate
25.79μg/m³
PM2.5
112.83μg/m³
PM10
50.27ppb
O3
1.21ppb
SO2
14.95ppb
NO2
0.26ppm
CO
AQI 79
Moderate
24.49μg/m³
PM2.5
85.58μg/m³
PM10
52.03ppb
O3
1.19ppb
SO2
14.99ppb
NO2
0.26ppm
CO
AQI 90
Moderate
29.56μg/m³
PM2.5
72.90μg/m³
PM10
52.77ppb
O3
1.26ppb
SO2
13.55ppb
NO2
0.14ppm
CO
AQI 86
Moderate
28.15μg/m³
PM2.5
104.29μg/m³
PM10
51.36ppb
O3
1.22ppb
SO2
13.11ppb
NO2
0.11ppm
CO
Air quality data and pollutant measurements for Ohio, 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 London, Ohio is updated every hour.
The worst air quality in London, Ohio in the last 24 hours was observed at 02:00:00 on 2025-06-04.
In the last 24 hrs, the best air quality in London, Ohio was observed at 04:00:00 on 2025-06-03.
The current air quality in London, Ohio is 79, categorized as Moderate based on real-time data.
The most common pollutant in London, Ohio is PM2.5.
If the air quality in London, Ohio is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at London, Ohio is 24.327 μg/m3.
The current PM10 concentration at London, Ohio is 88.072 μg/m3.
The current carbon monoxide (CO) concentration at London, Ohio is 0.219 ppm.
The current sulfur dioxide (SO2) concentration at London, Ohio is 1.245 ppb.
The current ozone (O3) concentration at London, Ohio is 48.767 ppm.
The current nitrogen dioxide (NO2) concentration at London, Ohio is 15.484 ppb.
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