Stay updated with real-time air quality in Bloomington, 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)
44
Good
Bloomington, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.95 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
35.23 μg/m³
0
55
155
255
425
605+
36.03 ppb
0
55
71
86
201
201+
0.51 ppb
0
36
76
186
605
1005+
3.74 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Bloomington, Illinois
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AQI 44
Good
7.90μg/m³
PM2.5
35.02μg/m³
PM10
36.00ppb
O3
0.50ppb
SO2
3.74ppb
NO2
0.23ppm
CO
AQI 52
Moderate
10.39μg/m³
PM2.5
48.97μg/m³
PM10
41.56ppb
O3
0.86ppb
SO2
3.70ppb
NO2
0.22ppm
CO
AQI 52
Moderate
10.08μg/m³
PM2.5
47.14μg/m³
PM10
41.43ppb
O3
0.85ppb
SO2
3.69ppb
NO2
0.22ppm
CO
AQI 49
Good
8.57μg/m³
PM2.5
35.55μg/m³
PM10
38.57ppb
O3
0.72ppb
SO2
3.77ppb
NO2
0.23ppm
CO
AQI 56
Moderate
11.94μg/m³
PM2.5
53.59μg/m³
PM10
41.71ppb
O3
0.89ppb
SO2
3.73ppb
NO2
0.21ppm
CO
AQI 39
Good
7.42μg/m³
PM2.5
28.92μg/m³
PM10
41.70ppb
O3
0.56ppb
SO2
2.66ppb
NO2
0.23ppm
CO
The air quality data for Illinois, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Bloomington, Illinois are available every hour.
Bloomington, Illinois experienced its worst air quality at 10:00:00, 2026-03-09.
The best air quality in Bloomington, Illinois was observed at 11:00:00 on 2026-03-09.
The air quality in Bloomington, Illinois right now is Good, with an AQI of 44.
In Bloomington, Illinois, PM2.5 is the most frequently found pollutant.
When air quality in Bloomington, Illinois is compromised, staying indoors and wearing a mask can reduce health risks.
Bloomington, Illinois currently has a PM2.5 concentration of 7.95 μg/m3.
Bloomington, Illinois currently has a PM10 concentration of 35.23 μg/m3.
The current carbon monoxide (CO) level in Bloomington, Illinois is 0.234 ppm.
The current sulfur dioxide (SO2) concentration in Bloomington, Illinois is 0.505 ppb.
Bloomington, Illinois currently has an ozone (O3) concentration of 36.031 ppm.
The current level of nitrogen dioxide (NO2) in Bloomington, Illinois is 3.74 ppb.
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