Stay updated with real-time air quality in Chillicothe, 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)
49
Good
Chillicothe, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.18 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
32.88 μg/m³
0
55
155
255
425
605+
21.89 ppb
0
55
71
86
201
201+
1.73 ppb
0
36
76
186
605
1005+
7.35 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Chillicothe, Ohio
Scroll To Air Quality MapLoading...
AQI 49
Good
9.48μg/m³
PM2.5
26.98μg/m³
PM10
25.67ppb
O3
1.95ppb
SO2
7.78ppb
NO2
0.15ppm
CO
AQI 52
Moderate
9.56μg/m³
PM2.5
34.03μg/m³
PM10
23.87ppb
O3
1.87ppb
SO2
7.85ppb
NO2
0.14ppm
CO
AQI 49
Good
9.44μg/m³
PM2.5
20.79μg/m³
PM10
25.89ppb
O3
1.94ppb
SO2
7.69ppb
NO2
0.15ppm
CO
AQI 52
Moderate
9.68μg/m³
PM2.5
17.24μg/m³
PM10
24.74ppb
O3
1.91ppb
SO2
6.26ppb
NO2
0.13ppm
CO
AQI 49
Good
9.35μg/m³
PM2.5
21.21μg/m³
PM10
28.56ppb
O3
1.90ppb
SO2
6.79ppb
NO2
0.14ppm
CO
AQI 81
Moderate
24.88μg/m³
PM2.5
50.76μg/m³
PM10
8.54ppb
O3
1.92ppb
SO2
7.95ppb
NO2
0.13ppm
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 Chillicothe, Ohio is updated every hour.
The worst air quality in Chillicothe, Ohio in the last 24 hours was observed at 01:00:00 on 2026-03-07.
In the last 24 hrs, the best air quality in Chillicothe, Ohio was observed at 12:00:00 on 2026-03-06.
The current air quality in Chillicothe, Ohio is 49, categorized as Good based on real-time data.
The most common pollutant in Chillicothe, Ohio is PM2.5.
If the air quality in Chillicothe, Ohio is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Chillicothe, Ohio is 9.182 μg/m3.
The current PM10 concentration at Chillicothe, Ohio is 32.878 μg/m3.
The current carbon monoxide (CO) concentration at Chillicothe, Ohio is 0.154 ppm.
The current sulfur dioxide (SO2) concentration at Chillicothe, Ohio is 1.732 ppb.
The current ozone (O3) concentration at Chillicothe, Ohio is 21.887 ppm.
The current nitrogen dioxide (NO2) concentration at Chillicothe, Ohio is 7.348 ppb.
All Rights Reserved © Ambee Inc. 2025