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 | Coyhaique, Chile | 33.2 | 4.1 | 5.3 | 15 | 40.1 | 42 | 84.1 | 91.3 | 47.3 | 39.8 | 12.8 | 10.7 | 5.7 | 37.7 | 36.1 | 33.3 | 41.5 | 34.2 | 39.3 |
2 | Nacimiento, Chile | 32.4 | 13.4 | 51.3 | 11.6 | 23.7 | 52 | 56.1 | 71.9 | 54.1 | 30.5 | 16.5 | 11.1 | 8.5 | 22.4 | 26.2 | 27.3 | -- | -- | -- |
3 | Pachacamac, Peru | 31.8 | 35.4 | 20.9 | 21.5 | 23.9 | 35.1 | 38.7 | 35.2 | 32.9 | 31.9 | 35 | 33.8 | 31.9 | 45.8 | -- | -- | -- | -- | -- |
4 | Padre las Casas, Chile | 29.4 | 4.3 | 5.9 | 10.4 | 24.1 | 46 | 72 | 52.4 | 47.8 | 35.2 | 19.9 | -- | 4.6 | 33.8 | 37.2 | 28.6 | 32.5 | 43.3 | 38.8 |
5 | Carabayllo, Peru | 28 | 33.1 | 25.9 | 27.4 | 25 | 31.2 | 31.3 | 30.4 | 29.2 | 28.9 | 25.2 | 23.7 | 27.4 | 37.6 | 27.6 | 18.6 | -- | -- | -- |
6 | Victoria, Chile | 27.4 | 7.9 | 34.3 | 14.8 | 32.1 | 47.4 | 50.7 | 44.2 | 41 | 23.1 | 13.3 | 8.3 | 7 | 25.5 | 44.1 | -- | -- | -- | -- |
7 | Puente Piedra, Peru | 27.4 | 25.6 | 23.2 | 23 | 22 | 39.8 | 36.2 | 30.7 | 30 | 27.8 | 28.4 | 22 | 29.5 | 32.9 | -- | -- | -- | -- | -- |
8 | Angol, Chile | 25.7 | 8.8 | 26.6 | 7.8 | 24.2 | 40.9 | 69.5 | 23.7 | 47.9 | 29.6 | 13.4 | 9.2 | 3.8 | 20.9 | 47.7 | -- | -- | -- | -- |
9 | Pudahuel, Chile | 25.7 | 11.9 | 25.4 | 11 | 20.2 | 43.9 | 47.1 | 47.9 | 26.7 | 19.7 | 14.5 | 7 | 13.2 | -- | -- | -- | -- | -- | -- |
10 | Llaillay, Chile | 25 | 13 | 33.2 | 19.9 | 22.5 | 38.3 | 45.5 | 41 | 26 | 16 | 16.4 | 14.1 | 15.2 | 29 | 20.9 | -- | -- | -- | -- |
11 | Rancagua, Chile | 24.2 | 13.1 | 32.1 | 13.1 | 21.3 | 40 | 43.3 | 47.6 | 24.8 | 23.7 | 13 | 10.9 | 9.8 | 25.4 | 25.4 | 23.8 | 26.9 | 22.9 | 23.3 |
12 | Quilicura, Chile | 24 | 11.7 | 26.2 | 13.4 | 18.5 | 38.5 | 37.7 | 38.6 | 25.2 | 20.8 | 16.7 | -- | 16.1 | 24.5 | 25.5 | 22.3 | 25.3 | -- | -- |
13 | San Fernando, Chile | 23.2 | 8 | 35.3 | 11.5 | 23.7 | 39.1 | 37 | 36.1 | 25.8 | 21.1 | 14.3 | 12.5 | 12.1 | 20.5 | 21.5 | 17.7 | 21 | 15.3 | 18.1 |
14 | Coronel, Chile | 22.9 | 8.3 | 26.8 | 11.9 | 24 | 44.5 | 44.7 | 39.1 | 29.7 | 15.7 | 12.8 | 9.7 | 7.7 | 24.7 | 33.3 | 20.7 | 11.8 | 19 | 22.9 |
15 | San Felipe, Chile | 22.7 | 10.4 | 28.9 | 16.4 | 21.6 | 36.3 | 35 | 38.3 | 25.4 | 18.4 | 15.7 | 13 | 13.4 | 23.8 | -- | -- | -- | -- | -- |
16 | Chillan, Chile | 22.5 | 3.6 | 58.6 | 10.4 | 23.9 | 33.5 | 33.7 | 40 | 30.3 | 15.3 | 9.6 | 7.1 | 6.4 | 19.1 | 22.7 | 16 | 20.4 | 21.5 | 27.7 |
17 | Talagante, Chile | 22.3 | 11.7 | 24.1 | 13.5 | 15.9 | 39.1 | 39.4 | 41.2 | 23.1 | 14.1 | 11.4 | -- | 9.7 | 27 | 29.4 | -- | 22.7 | -- | -- |
18 | Placilla, Chile | 22.2 | 21.3 | 40.8 | 9.7 | 21.2 | 33.7 | 32.8 | 36.4 | 22.1 | 11.7 | 9.4 | 5.5 | -- | 18.9 | 18 | -- | -- | -- | -- |
19 | Santiago, Chile | 21.3 | 11.1 | 27.5 | 12.8 | 20.5 | 40.2 | 31 | 32.5 | 23.8 | 19.1 | 14.5 | 9.9 | 13.2 | 25.8 | 25.8 | 23.6 | 27.7 | 29.4 | 23.1 |
20 | Xapuri, Brazil | 21 | -- | -- | -- | -- | 10.3 | 16.1 | 23.4 | 31.5 | 38.8 | 26.8 | 12.7 | 4.6 | -- | -- | -- | -- | -- | -- |
21 | Puente Alto, Chile | 20.8 | 11.8 | 26.5 | 14.1 | 17.2 | 31.7 | 27.4 | 30.6 | 21.1 | 19.6 | 15.5 | -- | 13 | 19.7 | 22.7 | 20.6 | 23.5 | -- | -- |
22 | Traiguen, Chile | 20.4 | 5.9 | 14.7 | 14.5 | 24 | 34.4 | 37.1 | 32.1 | 31.1 | 18.5 | 16.2 | 7 | 3.7 | 30.1 | 30.1 | -- | -- | -- | -- |
23 | Las Condes, Chile | 20 | 11.6 | 26.7 | 12.5 | 20.2 | 32.9 | 23.1 | 24.3 | 23.1 | 19.1 | 17.6 | 12.8 | 16.9 | 21.6 | 18 | 15.4 | 19.9 | -- | -- |
24 | Quilpue, Chile | 19.9 | 17.2 | 32 | 18.7 | 19.2 | 28.7 | 32.5 | 28 | 16.3 | 12.3 | 11.5 | 10.9 | 12.6 | 39.1 | -- | -- | -- | -- | -- |
25 | Villa Alemana, Chile | 19.7 | 10 | 31.9 | 19.2 | 20.6 | 30.3 | 34.4 | 29.8 | 16.6 | 12.1 | 12.4 | 10.8 | 12.1 | 33 | 14.2 | -- | -- | -- | -- |
26 | Lima, Peru | 19.7 | 16.5 | 14.8 | 15.1 | 13.1 | 21.6 | 21.9 | 23.1 | 25.1 | 24 | 24.1 | 18.8 | 17.6 | 25.6 | 31.5 | 18 | 23.7 | 28 | 27.7 |
27 | Osasco, Brazil | 19.4 | 13.6 | 12.5 | 16.8 | 15.1 | -- | 40.5 | 26.1 | 26.1 | 22.8 | 16.6 | 19.6 | 15.3 | 15.1 | 16.8 | 16.7 | 19.8 | 22.1 | -- |
28 | Curico, Chile | 18.7 | 9.3 | 34.7 | 10.4 | 18.9 | 32.9 | 32.4 | 30.4 | 21.1 | 15 | 11.9 | 7.1 | 7.1 | 17.1 | 19 | 19 | 25.8 | 16.8 | 23 |
29 | Putaendo, Chile | 18.4 | 14.4 | 27.6 | 17.3 | 20 | 25.3 | 22.5 | 22.1 | 17.2 | 14.2 | 13.9 | 10.9 | 12.9 | -- | -- | -- | -- | -- | -- |
30 | La Ligua, Chile | 18.3 | 14.7 | 33.1 | 20.3 | 18.5 | 25.5 | 22.6 | 17.4 | 14.5 | 12.9 | 13.5 | 12.5 | 15.1 | 14.9 | -- | -- | -- | -- | -- |
31 | Itagui, Colombia | 18.2 | -- | 34.9 | 24.5 | 17.2 | 19.6 | 15.2 | 17.6 | 15.8 | 18 | 20.6 | 16.2 | 18.7 | -- | -- | -- | -- | -- | -- |
32 | Hualqui, Chile | 18.1 | 7.7 | 32.9 | 10.2 | 16.2 | 32.3 | 29.4 | 30.7 | 23.7 | 13.1 | 11.2 | 6.9 | 7.9 | -- | -- | -- | -- | -- | -- |
33 | Los Angeles, Chile | 18.1 | 6.1 | 46.1 | 9 | 13.4 | 23.1 | 26.1 | 34.5 | 26.5 | 12.2 | 10.5 | 6.4 | 5.1 | 16 | 17.3 | 17 | 21.7 | 21.6 | 24.1 |
34 | Laja, Chile | 18 | 10.1 | 35.1 | 9.5 | 16.8 | 34.7 | 28.1 | 36.9 | -- | -- | 11.1 | 6.9 | 6.2 | 17.4 | -- | -- | -- | -- | -- |
35 | La Estrella, Colombia | 17.8 | -- | 33.4 | 21.5 | 19.2 | 17.5 | 15 | 15.4 | 17.7 | 19.7 | 20.6 | 16.9 | 15 | -- | -- | -- | -- | -- | -- |
36 | Linden, Guyana | 17.6 | 11.3 | 10.8 | 21.8 | 37.8 | 8.8 | 8.8 | 12.4 | 14.6 | 25.6 | 30.6 | 22.8 | 22.1 | 12.2 | -- | -- | -- | -- | -- |
37 | Envigado, Colombia | 17.4 | 20.6 | 26.9 | 23.4 | 17.3 | 15.3 | 12.5 | 12.2 | 15.5 | 17.9 | 17.6 | 12.9 | 16.6 | 23.5 | -- | -- | -- | -- | -- |
38 | Talcahuano, Chile | 17.2 | 8.4 | 20.5 | 8.9 | 14.8 | 25.5 | 34 | 39.3 | 23.8 | 14.4 | 8.7 | 5.7 | 6.7 | 19.6 | 20.1 | 19 | 21.4 | 15.7 | 21.3 |
39 | San Antonio, Chile | 17.2 | 13.5 | 24.4 | 14.4 | 16 | 22.3 | -- | 19.2 | 16.9 | 14.6 | 15.7 | 15.5 | 18 | 17.2 | -- | -- | -- | -- | -- |
40 | Sabaneta, Colombia | 17 | -- | 36.8 | 21.7 | 17 | 18 | 14.9 | 14.9 | 16.7 | 18.2 | 17 | 15.1 | 18.7 | -- | -- | -- | -- | -- | -- |
41 | Georgetown, Guyana | 17 | 16 | 15.2 | 26.2 | 21.9 | 14.8 | 8.5 | 11.8 | 13.7 | 17.5 | 18.7 | 19.4 | 20.9 | 12.7 | 6.5 | -- | -- | -- | -- |
42 | Manaus, Brazil | 16.8 | 5 | 3.9 | 6.1 | 4.7 | 5 | 7.9 | 12.8 | 19 | 33 | 53.6 | 39.8 | 6.9 | 12.7 | 10.3 | -- | -- | -- | -- |
43 | Temuco, Chile | 16.8 | 4.6 | 6.5 | 10 | 16.3 | 23.9 | 42.1 | 30.4 | 25.8 | 16.2 | 14.1 | 7.4 | 4.4 | 26.3 | 32.7 | 20.6 | 20.2 | 30.4 | 28.7 |
44 | Hualpen, Chile | 16.8 | 9.3 | 19.1 | 9.7 | 11.8 | 25.6 | 34.3 | 29.4 | 18.1 | 12.7 | 13.7 | 9.7 | 8.8 | 27.4 | -- | -- | -- | -- | -- |
45 | Puerto Varas, Chile | 16.8 | 5.8 | 6.5 | 12.2 | 21.3 | 25.1 | 31 | 25.5 | 21.2 | 17.2 | 18.8 | 14.9 | 9.4 | 20.3 | 18.2 | -- | -- | -- | -- |
46 | Caldas, Colombia | 16.8 | 17.2 | 24.9 | 20.3 | 14.6 | 14.2 | 12.9 | 13.5 | 15.9 | 17.1 | 16.4 | 15.5 | 20 | -- | -- | -- | -- | -- | -- |
47 | Rengo, Chile | 16.6 | 9.4 | 28 | 11.4 | 16.9 | 28.5 | -- | 35.4 | 20.7 | 16 | 8.5 | 4.9 | 9.2 | 18.8 | 16.8 | 18.8 | 24.1 | 18.9 | 16.3 |
48 | Salgar, Colombia | 16.6 | -- | -- | 24.9 | 18 | 17.8 | 13.8 | 13.7 | 15.8 | 17.5 | 17.3 | 12.6 | 14.5 | -- | -- | -- | -- | -- | -- |
49 | Maule, Chile | 16.4 | 7 | 37.9 | 9.2 | 17.8 | 27.4 | 23.6 | 29.1 | 18.4 | 9.6 | 8.1 | 5.5 | 5.8 | -- | -- | -- | -- | -- | -- |
50 | Camacari, Brazil | 16.2 | 21.3 | 20.7 | 16.4 | 16.8 | 9.8 | 7.9 | 15.7 | 19 | 19 | 19.1 | 13.3 | 14.7 | 18.8 | -- | -- | -- | -- | -- |
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