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)
38
Good
Hamilton, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.46 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.07 μg/m³
0
55
155
255
425
605+
16.21 ppb
0
55
71
86
201
201+
2.32 ppb
0
36
76
186
605
1005+
5.70 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Hamilton, Ohio
Hamilton, Ohio
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AQI 38
Good
7.46μg/m³
PM2.5
30.21μg/m³
PM10
16.03ppb
O3
2.32ppb
SO2
5.68ppb
NO2
0.28ppm
CO
AQI 44
Good
8.33μg/m³
PM2.5
33.81μg/m³
PM10
19.95ppb
O3
2.26ppb
SO2
5.42ppb
NO2
0.27ppm
CO
AQI 38
Good
7.18μg/m³
PM2.5
28.00μg/m³
PM10
20.02ppb
O3
2.32ppb
SO2
5.78ppb
NO2
0.29ppm
CO
AQI 38
Good
6.71μg/m³
PM2.5
24.80μg/m³
PM10
19.66ppb
O3
2.25ppb
SO2
5.40ppb
NO2
0.28ppm
CO
AQI 38
Good
7.43μg/m³
PM2.5
29.94μg/m³
PM10
14.67ppb
O3
2.15ppb
SO2
6.42ppb
NO2
0.33ppm
CO
AQI 44
Good
8.14μg/m³
PM2.5
31.35μg/m³
PM10
20.58ppb
O3
2.29ppb
SO2
5.42ppb
NO2
0.27ppm
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 04:00:00 on 2026-09-07.
In the last 24 hrs, the best air quality in Hamilton, Ohio was observed at 02:00:00 on 2026-09-07.
The current air quality in Hamilton, Ohio is 38, 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 7.461 μg/m3.
The current PM10 concentration at Hamilton, Ohio is 30.069 μg/m3.
The current carbon monoxide (CO) concentration at Hamilton, Ohio is 0.279 ppm.
The current sulfur dioxide (SO2) concentration at Hamilton, Ohio is 2.317 ppb.
The current ozone (O3) concentration at Hamilton, Ohio is 16.207 ppm.
The current nitrogen dioxide (NO2) concentration at Hamilton, Ohio is 5.695 ppb.
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