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

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.42 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
44.55 μg/m³
0
55
155
255
425
605+
17.19 ppb
0
55
71
86
201
201+
0.32 ppb
0
36
76
186
605
1005+
4.60 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Galesburg, Illinois
Galesburg, Illinois
Scroll To Air Quality MapLoading...
AQI 66
Moderate
16.80μg/m³
PM2.5
74.99μg/m³
PM10
13.82ppb
O3
0.34ppb
SO2
4.94ppb
NO2
0.20ppm
CO
AQI 52
Moderate
9.56μg/m³
PM2.5
42.95μg/m³
PM10
16.56ppb
O3
0.38ppb
SO2
4.50ppb
NO2
0.21ppm
CO
AQI 54
Moderate
10.83μg/m³
PM2.5
48.00μg/m³
PM10
18.00ppb
O3
0.32ppb
SO2
4.51ppb
NO2
0.21ppm
CO
AQI 54
Moderate
10.74μg/m³
PM2.5
47.98μg/m³
PM10
18.74ppb
O3
0.22ppb
SO2
6.47ppb
NO2
0.20ppm
CO
AQI 54
Moderate
11.00μg/m³
PM2.5
48.99μg/m³
PM10
17.75ppb
O3
0.22ppb
SO2
6.48ppb
NO2
0.20ppm
CO
AQI 52
Moderate
9.98μg/m³
PM2.5
44.41μg/m³
PM10
15.81ppb
O3
0.31ppb
SO2
3.98ppb
NO2
0.20ppm
CO
Air quality measurements for Illinois, 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 Galesburg, Illinois is updated on an hourly basis.
The worst air quality in Galesburg, Illinois was recorded at 02:00:00 on 2025-12-07.
The best air quality in Galesburg, Illinois was recorded at 07:00:00 on 2025-12-07.
The real-time air quality index in Galesburg, Illinois is 49, currently categorized as Good.
The most common pollutant in Galesburg, Illinois is PM2.5.
If the air quality in Galesburg, Illinois is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Galesburg, Illinois at present are 9.417 μg/m3.
The current PM10 levels in Galesburg, Illinois are 44.548 μg/m3.
The current carbon monoxide (CO) level in Galesburg, Illinois is 0.196 ppm.
The current sulfur dioxide (SO2) levels in Galesburg, Illinois are 0.319 ppb.
The current ozone (O3) levels at Galesburg, Illinois is 17.193 ppm.
The current nitrogen dioxide (NO2) levels at Galesburg, Illinois is 4.602 ppb.
All Rights Reserved © Ambee Inc. 2025