Stay updated with real-time air quality in Hazel Crest, 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)
38
Good
Hazel Crest, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.61 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
29.09 μg/m³
0
55
155
255
425
605+
12.34 ppb
0
55
71
86
201
201+
1.84 ppb
0
36
76
186
605
1005+
31.93 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Hazel Crest, Illinois
Hazel Crest, Illinois
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AQI 38
Good
6.93μg/m³
PM2.5
26.54μg/m³
PM10
14.60ppb
O3
1.86ppb
SO2
31.92ppb
NO2
0.29ppm
CO
AQI 33
Good
6.46μg/m³
PM2.5
28.38μg/m³
PM10
12.15ppb
O3
1.91ppb
SO2
31.95ppb
NO2
0.29ppm
CO
AQI 33
Good
6.44μg/m³
PM2.5
28.73μg/m³
PM10
14.70ppb
O3
1.75ppb
SO2
31.88ppb
NO2
0.29ppm
CO
AQI 33
Good
6.36μg/m³
PM2.5
27.99μg/m³
PM10
11.57ppb
O3
2.11ppb
SO2
32.02ppb
NO2
0.29ppm
CO
AQI 38
Good
6.69μg/m³
PM2.5
29.44μg/m³
PM10
12.53ppb
O3
1.81ppb
SO2
31.92ppb
NO2
0.29ppm
CO
AQI 33
Good
6.00μg/m³
PM2.5
26.38μg/m³
PM10
11.31ppb
O3
2.11ppb
SO2
32.00ppb
NO2
0.29ppm
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 Hazel Crest, Illinois is updated on an hourly basis.
The worst air quality in Hazel Crest, Illinois was recorded at 01:00:00 on 2026-01-24.
The best air quality in Hazel Crest, Illinois was recorded at 02:00:00 on 2026-01-24.
The real-time air quality index in Hazel Crest, Illinois is 38, currently categorized as Good.
The most common pollutant in Hazel Crest, Illinois is PM2.5.
If the air quality in Hazel Crest, Illinois is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Hazel Crest, Illinois at present are 6.609 μg/m3.
The current PM10 levels in Hazel Crest, Illinois are 29.085 μg/m3.
The current carbon monoxide (CO) level in Hazel Crest, Illinois is 0.292 ppm.
The current sulfur dioxide (SO2) levels in Hazel Crest, Illinois are 1.845 ppb.
The current ozone (O3) levels at Hazel Crest, Illinois is 12.344 ppm.
The current nitrogen dioxide (NO2) levels at Hazel Crest, Illinois is 31.93 ppb.
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