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)
24
Good
Streator, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
0.72 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
2.88 μg/m³
0
55
155
255
425
605+
25.88 ppb
0
55
71
86
201
201+
0.28 ppb
0
36
76
186
605
1005+
3.35 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Streator, Illinois
Streator, Illinois
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AQI 31
Good
1.85μg/m³
PM2.5
7.94μg/m³
PM10
33.81ppb
O3
0.29ppb
SO2
1.09ppb
NO2
0.15ppm
CO
AQI 38
Good
6.07μg/m³
PM2.5
31.11μg/m³
PM10
40.98ppb
O3
1.17ppb
SO2
5.13ppb
NO2
0.20ppm
CO
AQI 34
Good
4.83μg/m³
PM2.5
22.57μg/m³
PM10
37.18ppb
O3
1.40ppb
SO2
5.42ppb
NO2
0.18ppm
CO
AQI 35
Good
4.88μg/m³
PM2.5
25.17μg/m³
PM10
37.88ppb
O3
1.46ppb
SO2
5.16ppb
NO2
0.19ppm
CO
AQI 36
Good
4.95μg/m³
PM2.5
21.57μg/m³
PM10
39.49ppb
O3
1.54ppb
SO2
5.29ppb
NO2
0.19ppm
CO
AQI 36
Good
4.92μg/m³
PM2.5
24.30μg/m³
PM10
38.67ppb
O3
1.40ppb
SO2
5.29ppb
NO2
0.19ppm
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 02:00:00 on 2026-10-07.
In the last 24 hours, the best air quality in Streator, Illinois was observed at 12:00:00 on 2026-10-07.
As of now, the AQI in Streator, Illinois is 34, 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 2.026 μg/m3.
The PM10 concentration in Streator, Illinois is 8 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Streator, Illinois is 0.148 ppm.
Currently, Streator, Illinois has a sulfur dioxide (SO2) concentration of 0.286 ppb.
The current ozone (O3) level in Streator, Illinois at the moment is 36.77 ppm.
Nitrogen dioxide (NO2) level in Streator, Illinois at the moment is 1.084 ppb.
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