Air quality in Illinois

Air quality index (AQI) and PM2.5 air pollution in Illinois

Last update at (local time)

LIVE AQI CITY RANKING

Real-time Illinois
Most polluted city ranking

#cityUS AQI
1 Centralia

41

2 Lemont

32

3 Alsip

31

4 Newark

29

5 Highland

27

6 McCook

27

7 River Forest

27

8 Grayslake

26

9 Naperville

26

10 Palatine

26

(local time)

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AIR QUALITY DATA CONTRIBUTORS

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107 Contributors

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LIVE AQI CITY RANKING

Real-time Illinois
Cleanest city ranking

#cityUS AQI
1 Leland Grove

8

2 West Ridge

8

3 Charleston

10

4 La Grange

11

5 La Salle

11

6 Union Hill

12

7 Elk Grove Village

14

8 Peotone

15

9 Durand

16

10 McLeansboro

16

(local time)

SEE WORLD AQI RANKING

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Good
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Hazardous
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Illinois air quality data attribution

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