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

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.58 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.71 μg/m³
0
55
155
255
425
605+
22.04 ppb
0
55
71
86
201
201+
0.84 ppb
0
36
76
186
605
1005+
2.79 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Hamilton, Ohio
Scroll To Air Quality MapLoading...
AQI 22
Good
3.81μg/m³
PM2.5
14.12μg/m³
PM10
21.16ppb
O3
0.86ppb
SO2
3.24ppb
NO2
0.19ppm
CO
AQI 22
Good
4.01μg/m³
PM2.5
16.45μg/m³
PM10
21.94ppb
O3
0.98ppb
SO2
2.89ppb
NO2
0.18ppm
CO
AQI 22
Good
3.98μg/m³
PM2.5
15.14μg/m³
PM10
22.30ppb
O3
0.81ppb
SO2
3.31ppb
NO2
0.19ppm
CO
AQI 22
Good
4.04μg/m³
PM2.5
15.83μg/m³
PM10
22.52ppb
O3
0.80ppb
SO2
3.30ppb
NO2
0.19ppm
CO
AQI 21
Good
3.30μg/m³
PM2.5
13.73μg/m³
PM10
22.53ppb
O3
0.79ppb
SO2
3.52ppb
NO2
0.19ppm
CO
AQI 22
Good
4.00μg/m³
PM2.5
14.71μg/m³
PM10
21.67ppb
O3
0.98ppb
SO2
2.90ppb
NO2
0.18ppm
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 Hamilton, Ohio is updated every hour.
The worst air quality in Hamilton, Ohio in the last 24 hours was observed at 12:00:00 on 2026-03-07.
In the last 24 hrs, the best air quality in Hamilton, Ohio was observed at 07:00:00 on 2026-03-08.
The current air quality in Hamilton, Ohio is 22, categorized as Good based on real-time data.
The most common pollutant in Hamilton, Ohio is PM2.5.
If the air quality in Hamilton, Ohio is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Hamilton, Ohio is 3.577 μg/m3.
The current PM10 concentration at Hamilton, Ohio is 12.706 μg/m3.
The current carbon monoxide (CO) concentration at Hamilton, Ohio is 0.181 ppm.
The current sulfur dioxide (SO2) concentration at Hamilton, Ohio is 0.837 ppb.
The current ozone (O3) concentration at Hamilton, Ohio is 22.041 ppm.
The current nitrogen dioxide (NO2) concentration at Hamilton, Ohio is 2.793 ppb.
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