Stay updated with real-time air quality in Joliet, 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)
17
Good
Joliet, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
2.84 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.23 μg/m³
0
55
155
255
425
605+
18.21 ppb
0
55
71
86
201
201+
0.69 ppb
0
36
76
186
605
1005+
7.32 ppb
0
54
101
361
1250
2050+
0.13 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Joliet, Illinois
Joliet, Illinois
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AQI 38
Good
6.90μg/m³
PM2.5
30.93μg/m³
PM10
35.23ppb
O3
0.76ppb
SO2
14.75ppb
NO2
0.23ppm
CO
AQI 38
Good
6.76μg/m³
PM2.5
30.01μg/m³
PM10
36.22ppb
O3
0.74ppb
SO2
12.84ppb
NO2
0.23ppm
CO
AQI 34
Good
5.84μg/m³
PM2.5
29.51μg/m³
PM10
37.14ppb
O3
0.76ppb
SO2
15.09ppb
NO2
0.26ppm
CO
AQI 33
Good
5.97μg/m³
PM2.5
28.21μg/m³
PM10
34.86ppb
O3
0.77ppb
SO2
11.63ppb
NO2
0.23ppm
CO
AQI 38
Good
6.81μg/m³
PM2.5
30.07μg/m³
PM10
36.20ppb
O3
0.73ppb
SO2
12.07ppb
NO2
0.23ppm
CO
AQI 34
Good
5.88μg/m³
PM2.5
25.71μg/m³
PM10
36.84ppb
O3
0.76ppb
SO2
14.34ppb
NO2
0.26ppm
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 Joliet, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Joliet, Illinois was at its worst at 01:00:00 on 2025-09-05.
In the last 24 hours, the best air quality in Joliet, Illinois was observed at 07:00:00 on 2025-09-06.
As of now, the AQI in Joliet, Illinois is 17, indicating Good conditions.
Joliet, Illinois air has the highest levels of O3.
Poor air quality in Joliet, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Joliet, Illinois are currently 2.84 μg/m3.
The PM10 concentration in Joliet, Illinois is 12.227 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Joliet, Illinois is 0.127 ppm.
Currently, Joliet, Illinois has a sulfur dioxide (SO2) concentration of 0.686 ppb.
The current ozone (O3) level in Joliet, Illinois at the moment is 18.214 ppm.
Nitrogen dioxide (NO2) level in Joliet, Illinois at the moment is 7.316 ppb.
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