Stay updated with real-time air quality in Peoria, 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)
54
Moderate
Peoria, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
11.17 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
49.96 μg/m³
0
55
155
255
425
605+
33.46 ppb
0
55
71
86
201
201+
0.89 ppb
0
36
76
186
605
1005+
3.67 ppb
0
54
101
361
1250
2050+
0.13 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Peoria, Illinois
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AQI 82
Moderate
26.44μg/m³
PM2.5
102.66μg/m³
PM10
24.92ppb
O3
1.15ppb
SO2
10.61ppb
NO2
0.20ppm
CO
AQI 81
Moderate
24.84μg/m³
PM2.5
59.04μg/m³
PM10
21.98ppb
O3
1.11ppb
SO2
10.70ppb
NO2
0.20ppm
CO
AQI 62
Moderate
15.36μg/m³
PM2.5
50.95μg/m³
PM10
22.40ppb
O3
1.20ppb
SO2
10.47ppb
NO2
0.20ppm
CO
AQI 79
Moderate
24.21μg/m³
PM2.5
100.26μg/m³
PM10
22.75ppb
O3
1.11ppb
SO2
9.86ppb
NO2
0.20ppm
CO
AQI 71
Moderate
20.07μg/m³
PM2.5
51.62μg/m³
PM10
25.89ppb
O3
1.32ppb
SO2
10.60ppb
NO2
0.20ppm
CO
AQI 79
Moderate
24.00μg/m³
PM2.5
104.98μg/m³
PM10
36.99ppb
O3
1.10ppb
SO2
7.82ppb
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 Peoria, Illinois is updated on an hourly basis.
The worst air quality in Peoria, Illinois was recorded at 09:00:00 on 2025-07-07.
The best air quality in Peoria, Illinois was recorded at 08:00:00 on 2025-07-07.
The real-time air quality index in Peoria, Illinois is 86, currently categorized as Moderate.
The most common pollutant in Peoria, Illinois is PM2.5.
If the air quality in Peoria, Illinois is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Peoria, Illinois at present are 28.352 μg/m3.
The current PM10 levels in Peoria, Illinois are 122.962 μg/m3.
The current carbon monoxide (CO) level in Peoria, Illinois is 0.2 ppm.
The current sulfur dioxide (SO2) levels in Peoria, Illinois are 1.134 ppb.
The current ozone (O3) levels at Peoria, Illinois is 25.005 ppm.
The current nitrogen dioxide (NO2) levels at Peoria, Illinois is 10.593 ppb.
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