2017-2023
2023
World Air Quality Report
0-5
Meets WHO guideline
5.1-10
Exceeds by 1 to 2 times
10.1-15
Exceeds by 2 to 3 times
15.1-25
Exceeds by 3 to 5 times
25.1-35
Exceeds by 5 to 7 times
35.1-50
Exceeds by 7 to 10 times
>50.1
Exceeds by over 10 times
Rank | City | 2023 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | Elwood, USA | 15.6 | 18.6 | 13.5 | 14.3 | 11.5 | 12.1 | 32.2 | 16.2 | 17.4 | 12.7 | 7.6 | -- | -- | 14 | 14.9 | -- | -- | -- | -- |
2 | McCook, USA | 15.2 | 14.5 | 12.1 | 12.1 | 12.8 | 14 | 37.1 | 19.9 | 12.1 | 10.9 | 9.6 | 11.2 | 11.6 | 48.6 | -- | -- | -- | -- | -- |
3 | Peotone, USA | 15.1 | 19.7 | 12.8 | 14 | 11.8 | 12.6 | 33.1 | 17.4 | 16.4 | 12.9 | 7.5 | 10.1 | 10.3 | 14.9 | 16.7 | -- | -- | -- | -- |
4 | Woodstock, USA | 15.1 | 18.4 | 11.7 | 13.4 | 10.3 | 10.6 | 34.1 | 16.4 | 17.1 | 1.8 | 2.4 | 3.7 | 2.3 | 13.7 | -- | -- | -- | -- | -- |
5 | Homer, USA | 14.9 | -- | -- | 14.1 | 10.4 | 11.7 | 35.3 | 17.4 | 18.7 | 14.3 | 7.8 | 10.5 | 10 | -- | -- | -- | -- | -- | -- |
6 | Harvard, USA | 14.7 | 19.5 | 12.2 | 13.7 | 10.7 | 10 | 37.4 | 16.4 | 17.3 | 12 | 7.1 | 9.7 | 11 | 21.4 | -- | -- | -- | -- | -- |
7 | Lemont, USA | 14.7 | 13.4 | 11.3 | 12.1 | 11.7 | 13.1 | 33.2 | 17.7 | 14.8 | 11.6 | 10.5 | 11.7 | 11.3 | 45.7 | -- | -- | -- | -- | -- |
8 | Willowbrook, USA | 14.7 | 17.9 | 13.1 | 13.6 | 12.2 | 13.4 | 32.5 | 17.1 | 17.1 | 12.7 | 7.6 | 10.2 | 9.1 | 12.7 | 13.5 | -- | -- | -- | -- |
9 | Inverness, USA | 13.9 | -- | -- | -- | 8.4 | 7.9 | 36.4 | 18.1 | 16.6 | 10.7 | 7.3 | 7.6 | 7.7 | -- | -- | -- | -- | -- | -- |
10 | Wheaton, USA | 13.7 | 16.4 | 8.5 | 4.9 | 10 | 11 | 31.5 | 16.9 | 17.2 | 12.5 | 7.4 | 9.4 | 7.6 | 9.5 | 13.4 | -- | 11.9 | -- | -- |
11 | Wilmette, USA | 13.7 | -- | -- | -- | 6.8 | 9.4 | 31.6 | 20.6 | 16.4 | 10.7 | 8.2 | 8.8 | 8.5 | 7.6 | -- | -- | -- | -- | -- |
12 | Washington Park, USA | 13.5 | 13.5 | 12.6 | 11.3 | 11.1 | 12.2 | 20.9 | 14.1 | 13 | 13.6 | 12.3 | 12.3 | 11.3 | 47.5 | -- | -- | -- | -- | -- |
13 | Orland Park, USA | 13.4 | 18.3 | 11.6 | 12.4 | 9.7 | 10.9 | 32.2 | 15.4 | 15.7 | 11 | 6.5 | 9.1 | 8.7 | 12.1 | -- | -- | -- | -- | -- |
14 | Streamwood, USA | 13.4 | 12.8 | 9.8 | 8 | 10.2 | 9.7 | 31.9 | 17.7 | 14.5 | 10.8 | 9 | 10.1 | 9.8 | 43.2 | -- | -- | -- | -- | -- |
15 | Union Hill, USA | 13.4 | 18.6 | 12.3 | 13 | 10.3 | 10.7 | 31.8 | 11.7 | 14.1 | 11.6 | 6.5 | 7.7 | 7.9 | 8.3 | 6.5 | -- | -- | -- | -- |
16 | Naperville, USA | 13.2 | 14.6 | 10.9 | 11.5 | 9.9 | 10.8 | 31.8 | 15.9 | 14.8 | 11.2 | 7.9 | 9.8 | 9 | 10.6 | 10.4 | 9.5 | 10.9 | 10.6 | -- |
17 | Peoria, USA | 13.1 | 16 | 11.3 | 13.2 | 9.7 | 11.3 | 28.3 | 21.3 | 15.4 | 11.2 | 8 | 9.1 | 8.2 | 11.2 | 11.2 | 8.2 | 8.6 | 9.6 | 9.9 |
18 | Saint Louis, USA | 13.1 | 15.1 | 11.4 | 12.2 | 9.8 | 13 | 25.5 | 14.8 | 15.1 | 15.2 | 8.3 | 8.6 | 7.2 | 12.8 | -- | -- | -- | -- | -- |
19 | Chicago, USA | 13 | 14.6 | 9.4 | 10.1 | 9 | 9.8 | 28.4 | 17.4 | 16.8 | 12.6 | 7.9 | 9.9 | 9.8 | 11.8 | 13.4 | 11.1 | 12.8 | 9.4 | 6.7 |
20 | Newark, USA | 13 | 15.6 | 11.9 | 12 | 10.5 | 11.3 | 32.1 | 14.5 | 15.6 | 11.1 | 6.8 | 7.9 | 7.8 | 11.6 | 12.4 | -- | -- | -- | -- |
21 | Saint Charles, USA | 12.9 | 11.9 | 9.4 | 10.1 | 11 | 10.3 | 32.6 | 16.5 | 12.7 | 9.9 | 8.5 | 9.8 | 8.8 | 41.2 | -- | -- | -- | -- | -- |
22 | DeKalb, USA | 12.8 | 15.2 | 10.3 | 11.6 | 9.7 | 10 | 31.9 | 14.2 | 16.1 | 11.9 | 6.9 | 8.2 | 7.4 | 10.7 | 12.3 | -- | -- | -- | -- |
23 | Shorewood, USA | 12.7 | 11.3 | 9 | 9.3 | 10.5 | 10 | 32 | 15.8 | 14.2 | 9.5 | 9 | 9.2 | 8.7 | 39.6 | -- | -- | -- | -- | -- |
24 | Skokie, USA | 12.6 | 14 | 10.6 | 10.4 | 9.2 | 10 | 25.7 | 17.1 | 17.2 | 12.9 | 7.9 | 8.8 | 8 | 10.6 | 13.6 | 11.2 | 10.5 | -- | -- |
25 | Joliet, USA | 12.4 | 13.8 | 9.9 | 10.7 | 9.1 | 9.9 | 30.7 | 15.2 | 14.6 | 10 | 7.6 | 9 | 8 | 10.5 | 12 | 9.8 | 10.3 | 9.9 | -- |
26 | Lansing, USA | 12.3 | 12.6 | 9.8 | 9.8 | 9.5 | 10.8 | 28.4 | 15.9 | 13.8 | 9.9 | 9.3 | 9.1 | 8.6 | 9.9 | 10.8 | -- | -- | -- | -- |
27 | West Ridge, USA | 12.3 | 14.8 | 10.5 | 10.7 | 9.2 | 10.7 | 26.9 | 15.8 | 14.7 | 11.2 | 6.8 | 8 | 6.7 | 10.2 | -- | -- | -- | -- | -- |
28 | Lake Forest, USA | 12.2 | 15.7 | 10.9 | 10.5 | 9.1 | 9.9 | 28 | 14.7 | 14.9 | 10.7 | 6.8 | 7.8 | 8.6 | 10.6 | 12.2 | -- | -- | -- | -- |
29 | Marengo, USA | 12.2 | 15.1 | 9.2 | 11.1 | 9.3 | 10.1 | 31.2 | 14 | 15.1 | 10.8 | 5.9 | 7 | 7.9 | 10.7 | 11.4 | -- | -- | -- | -- |
30 | Rockford, USA | 12.2 | 11.1 | 7.4 | 8.3 | 9.5 | 9.7 | 34.3 | 14.6 | 14.5 | 10.7 | 7.9 | 9.8 | 9.1 | 11 | 9.8 | 9.4 | -- | -- | -- |
31 | Bellevue, USA | 12.1 | 9.5 | 8.5 | -- | 9.2 | 10.6 | 34.5 | 14.1 | 13.1 | 9.2 | 7.7 | 8.6 | 7.9 | 32.7 | -- | -- | -- | -- | -- |
32 | Granite City, USA | 12 | 13.7 | 10.9 | 11.3 | 9.5 | 11.6 | 21.2 | 12.9 | 12.5 | 13.3 | 9.3 | 9.6 | 8.4 | 11.6 | 13.7 | 10.1 | 11.8 | 11.2 | 10.1 |
33 | Charleston, USA | 11.8 | 14.3 | 9.4 | 11.2 | 8.1 | 10.1 | 26.5 | 13.8 | 13.8 | 12.3 | 6.7 | 8 | 7.5 | 11.4 | 12.4 | -- | -- | -- | -- |
34 | La Salle, USA | 11.7 | 12.2 | 8.3 | 10.7 | 8.6 | 9.7 | 31.5 | 13.7 | 16.2 | 10.8 | 5.7 | 5.9 | 6.1 | 9.3 | -- | -- | -- | -- | -- |
35 | Milan, USA | 11.7 | 12.3 | 8.4 | 9.3 | 9.1 | 9.3 | 29 | 13.6 | 12.2 | 9.6 | 7.6 | 8.2 | 7.2 | 37.1 | -- | -- | -- | -- | -- |
36 | East Saint Louis, USA | 11.6 | 11.2 | 9.8 | 10.3 | 9 | 10.9 | 20.9 | 12.9 | 12.2 | 13 | 10.6 | 10.8 | 8.4 | -- | -- | -- | -- | -- | -- |
37 | Lebanon, USA | 11.6 | 12.6 | 9.7 | 11.2 | 8.9 | 10.1 | 23.4 | 13.8 | 15.2 | 12.9 | 7.6 | 8.3 | 7.3 | 12 | -- | -- | -- | -- | -- |
38 | Highland, USA | 11.5 | 12 | 8.6 | 11 | 8.4 | 10.8 | 21.6 | 15.1 | 14.5 | 13.4 | 7.7 | 8.5 | 7.3 | 10.9 | 15.3 | -- | -- | -- | -- |
39 | Normal, USA | 11.5 | 12.2 | 9.2 | 9.8 | 8.4 | 9.6 | 30.2 | 14.2 | 13 | 9.6 | 8.3 | 7.3 | 6.6 | 9.8 | 10.7 | 8.7 | 10.1 | 9.8 | 9.6 |
40 | Cicero, USA | 11.4 | 10.1 | 8.8 | 8.1 | 7.6 | 9.6 | 24.1 | 14.1 | 14.3 | 11.8 | 7.9 | 10.7 | 9.8 | 8.6 | 8.7 | 8 | 11.3 | 9.6 | 9.3 |
41 | Danvers, USA | 11.4 | 10.8 | 8.4 | 8.3 | 9.1 | 8.7 | 29.9 | 13.4 | 11.7 | 9.5 | 8.3 | 7.4 | 7 | 38.6 | -- | -- | -- | -- | -- |
42 | Evanston, USA | 11.4 | 17.1 | 9.7 | 9.1 | 7.7 | 3.3 | 23.7 | 11 | 17.3 | 12.4 | 8.2 | 10.3 | 10.2 | 9.8 | 11.6 | -- | -- | -- | -- |
43 | Schiller Park, USA | 11.4 | 12.1 | 9.3 | 8.6 | 8 | 8.4 | 24.5 | 15.9 | 14.1 | 10.3 | 7.7 | 9.1 | 8.9 | 11.7 | -- | -- | -- | -- | -- |
44 | Leland Grove, USA | 11.3 | 9.5 | 7.1 | 11.6 | 7.4 | 10.5 | 27.9 | 13.5 | 13.7 | 11.3 | 5.9 | 6.1 | 5.3 | 9.4 | -- | -- | -- | -- | -- |
45 | Rock Island Arsenal, USA | 11.2 | 11.9 | 8.2 | 9.4 | 8.3 | 9.2 | 29.8 | 13.5 | 12.1 | 9.5 | 7.5 | 8.1 | 6.9 | 8.8 | -- | -- | -- | -- | -- |
46 | Des Plaines, USA | 11.1 | 11.4 | 7.9 | 7.8 | 7.9 | 8.3 | 29 | 14.7 | 12.3 | 9.4 | 8.2 | 8.2 | 7.9 | 8.7 | 10 | 8.6 | -- | -- | -- |
47 | Park City, USA | 11.1 | 10.5 | 8.1 | 7.6 | 9.2 | 8.3 | 28.7 | 13.3 | 11.8 | 8.2 | 7.4 | 8.5 | 7.7 | 37.3 | -- | -- | -- | -- | -- |
48 | Champaign, USA | 10.9 | 10.1 | 7.1 | 8.9 | 6.4 | 6.9 | 27.4 | 13 | 15.4 | 11.4 | 6.9 | 9.5 | 8.5 | 8.7 | 10.5 | 9.4 | 9.9 | 8.6 | 9.1 |
49 | New Berlin, USA | 10.9 | 9.5 | 7.6 | 7.8 | 9.4 | 9.2 | 24.8 | 12.9 | 12 | 11 | 7.5 | 8 | 7.3 | 36.8 | -- | -- | -- | -- | -- |
50 | Saint Jacob, USA | 10.9 | 11.9 | 7.7 | 10.3 | 8.9 | 11 | 21.9 | 13 | 13 | 12.1 | 6.5 | 6.2 | 4.8 | 12.2 | 12 | -- | -- | -- | -- |
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