Stay updated with real-time air quality in Streator, 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)
41
Good
Streator, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.58 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
29.12 μg/m³
0
55
155
255
425
605+
44.24 ppb
0
55
71
86
201
201+
0.20 ppb
0
36
76
186
605
1005+
1.62 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Streator, Illinois
Streator, Illinois
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AQI 41
Good
6.37μg/m³
PM2.5
28.11μg/m³
PM10
43.90ppb
O3
0.22ppb
SO2
1.70ppb
NO2
0.15ppm
CO
AQI 52
Moderate
9.82μg/m³
PM2.5
45.39μg/m³
PM10
50.43ppb
O3
0.93ppb
SO2
5.82ppb
NO2
0.16ppm
CO
AQI 52
Moderate
9.94μg/m³
PM2.5
41.49μg/m³
PM10
50.28ppb
O3
0.98ppb
SO2
4.12ppb
NO2
0.22ppm
CO
AQI 52
Moderate
9.67μg/m³
PM2.5
45.86μg/m³
PM10
50.07ppb
O3
0.95ppb
SO2
4.80ppb
NO2
0.22ppm
CO
AQI 49
Good
9.43μg/m³
PM2.5
42.03μg/m³
PM10
49.69ppb
O3
0.68ppb
SO2
6.68ppb
NO2
0.23ppm
CO
AQI 52
Moderate
10.15μg/m³
PM2.5
42.76μg/m³
PM10
49.52ppb
O3
1.01ppb
SO2
4.83ppb
NO2
0.22ppm
CO
Air quality and pollutant data for Illinois, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Streator, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Streator, Illinois was at its worst at 09:00:00 on 2026-04-23.
In the last 24 hours, the best air quality in Streator, Illinois was observed at 10:00:00 on 2026-04-23.
As of now, the AQI in Streator, Illinois is 41, indicating Good conditions.
Streator, Illinois air has the highest levels of O3.
Poor air quality in Streator, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Streator, Illinois are currently 6.579 μg/m3.
The PM10 concentration in Streator, Illinois is 29.116 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Streator, Illinois is 0.154 ppm.
Currently, Streator, Illinois has a sulfur dioxide (SO2) concentration of 0.199 ppb.
The current ozone (O3) level in Streator, Illinois at the moment is 44.237 ppm.
Nitrogen dioxide (NO2) level in Streator, Illinois at the moment is 1.622 ppb.
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