2017-2022

World's most polluted cities

Most polluted city ranking based on annual average PM2.5 concentration (μg/m³)

2022

World Air Quality Report

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PM2.5 legend

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
2022 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2021 2020 2019 2018 2017
1 Peru
San Juan de Lurigancho, Peru
41.2 26.6 28.6 26.8 32.5 51.6 51.3 53.9 56.5 50.5 46.8 36.7 31.1 34 22.4 -- -- --
2 Peru
Vitarte, Peru
40 28 27.6 26.4 37.2 59.2 62.8 65.3 50.1 43.9 40.4 29.8 23.7 -- -- -- -- --
3 Chile
Quilpue, Chile
39.1 -- -- -- -- 68.8 70.1 57.8 44.4 28 17.5 15.9 18.7 -- -- -- -- --
4 Peru
Santa Anita, Peru
38.8 20.6 21.6 22.1 31.4 52 53.7 48.4 54.1 48.2 45.2 33.9 32.1 36.2 -- -- -- --
5 Chile
Coyhaique, Chile
37.7 6 6.2 17.6 33.3 99.4 129.6 69.6 35.2 21.6 16.3 8.7 7.1 36.1 33.3 41.5 34.2 39.3
6 Peru
Carabayllo, Peru
37.6 25.6 24.5 18.5 38.3 50.8 40.7 36.2 51.3 46.3 44.7 32.7 32.2 27.6 18.6 -- -- --
7 Peru
Villa Maria del Triunfo, Peru
35 27.9 25.9 17.8 30.7 50.5 33.6 44.8 45 33.8 35.6 37.3 34.6 26.9 -- -- -- --
8 Chile
Padre las Casas, Chile
33.8 9 12.3 16.4 38.1 77.6 76.3 52.8 56.5 33.5 19.8 7.6 4.8 37.2 28.6 32.5 43.3 38.8
9 Chile
Villa Alemana, Chile
33 6.7 14 18.9 27 69.3 73 57.3 43.2 24.6 12.8 12.9 10.2 14.2 -- -- -- --
10 Chile
Traiguen, Chile
30.1 4.8 18.2 13 27.8 63 67.2 53.7 44.1 34.2 19.8 10.1 5.2 30.1 -- -- -- --
11 Chile
Llaillay, Chile
29 9.5 13 19.2 26.2 61.1 56.9 42 49 25.7 13.8 14.4 14.7 20.9 -- -- -- --
12 Chile
El Bosque, Chile
28.3 13.1 18 18.3 26.3 55 56.1 44.3 41.7 25.8 13.3 12.4 14.9 -- -- -- -- --
13 Chile
Providencia, Chile
28.2 8.1 12.9 10.2 26.7 65.1 55.2 38.9 46.4 25 13.2 10.2 10.2 -- -- -- -- --
14 Chile
La Reina, Chile
27.2 9.7 14.7 16 23.3 53.7 46.7 38 43.1 32 16.6 14 13.2 -- -- -- -- --
15 Chile
Talagante, Chile
27 11.4 14.7 15.5 22.5 57.1 65.6 43.1 36.8 20.5 11.7 10.9 12.8 29.4 -- 22.7 -- --
16 Chile
Temuco, Chile
26.3 5 9 12 26.8 65.2 62.1 41.3 40.7 26.4 13.1 7 5.5 32.7 20.6 20.2 30.4 28.7
17 Chile
Santiago, Chile
25.8 9.1 13 16.1 23.3 56.4 50.8 37.3 41.6 25.2 12.7 11.4 12.4 25.8 23.6 27.7 29.4 23.1
18 Peru
Lima, Peru
25.6 14.6 16.2 15.2 21.7 30.6 35.9 33 36.1 33.2 28.7 22.1 18.8 31.5 18 23.7 28 27.7
19 Chile
Rancagua, Chile
25.4 8.2 13.2 14.6 20.2 49.9 55.2 48.9 34.6 22.2 14.1 11.1 12 25.4 23.8 26.9 22.9 23.3
20 Chile
Vitacura, Chile
24.8 9 13.3 15.9 24.9 65.5 48.7 33.4 -- 42.5 14.2 12.6 12.5 -- -- -- -- --
21 Chile
Coronel, Chile
24.7 7.6 12.7 12 26.1 56.9 43.7 41.5 40.6 23.2 12.2 9.8 9.2 33.3 20.7 11.8 19 22.9
22 Chile
Quilicura, Chile
24.5 11.5 14.2 17.5 19 52.4 50.1 34.9 35.6 20.8 12.2 12.3 13.2 25.5 22.3 25.3 -- --
23 Chile
Lo Barnechea, Chile
24.4 10.2 12.6 16.3 23.1 54.2 39.8 30.8 41.6 26.9 12.7 12.6 11.4 -- -- -- -- --
24 Peru
San Martin de Porres, Peru
23.5 14.4 18.8 19 20.6 30.1 31.2 28 30.5 28 25.6 19.7 16.1 17.6 -- -- -- --
25 Brazil
Acrelandia, Brazil
23.3 6.6 4.5 2.2 4.1 6.2 -- 21.3 41.6 96.3 21.8 18.1 6.3 28 -- -- -- --
26 Chile
Nacimiento, Chile
22.4 8.2 18.5 10.4 21 48.9 45 29.3 40 19.3 11.2 9.7 10.3 26.2 27.3 -- -- --
27 Chile
Las Condes, Chile
21.6 11.3 13.5 14.3 19.6 43.8 35.6 27.6 34.1 23.4 12.1 12.3 11.3 18 15.4 19.9 -- --
28 Chile
Concepcion, Chile
20.6 5.8 11.7 10.4 19.4 46.6 37 32 34.8 23.1 9.5 8 8 17.7 13 14.9 19.6 --
29 Chile
San Fernando, Chile
20.5 6.2 11 12.3 16.5 37.2 46 38.6 30.9 22.1 9.6 9 9.6 21.5 17.7 21 15.3 18.1
30 Colombia
Bucaramanga, Colombia
20.5 24.8 27.4 22.4 21.3 19.6 17.9 17.6 22.3 20 17.2 18.7 20.9 19.4 -- -- -- --
31 Peru
Puerto Maldonado, Peru
20.5 12.9 12.5 9.2 13.2 18.6 21.6 28.1 31.9 54.4 20.6 22.4 10.4 13 -- -- -- --
32 Chile
Puerto Varas, Chile
20.3 8.1 6.3 15.6 21.3 29.5 33.7 29.6 38.7 32.1 20.6 11.3 7.6 18.2 -- -- -- --
33 Brazil
Porto Velho, Brazil
20.2 6.2 3.8 3.6 5 13 16.4 28.2 52.7 61.2 22.4 23.7 6.5 22.1 -- -- -- --
34 Chile
Puente Alto, Chile
19.7 8.8 13 12.6 18.4 39.4 35.9 27.7 30.4 18.5 10.3 10.6 11 22.7 20.6 23.5 -- --
35 Chile
Talcahuano, Chile
19.6 8.1 14.1 12.8 19.1 43.2 34.9 32.7 24.4 17.4 9.6 9.4 8.8 20.1 19 21.4 15.7 21.3
36 Peru
Concepcion, Peru
19.5 11.6 8.4 9.3 17.8 19.2 24.4 34.8 26.3 29.3 20.4 23 22.5 12.9 -- -- -- --
37 Chile
Chillan, Chile
19.1 6.3 17.7 11.6 17 39.9 37.8 33 29.4 17.6 9 5.6 4.1 22.7 16 20.4 21.5 27.7
38 Chile
Placilla, Chile
18.9 8 10.7 9.4 15.2 40 36.5 23 24.4 14.4 7.3 9.5 21.4 18 -- -- -- --
39 Chile
Rengo, Chile
18.8 6.5 9.1 10.2 15 34.2 41.1 30.1 31.8 20.1 9.7 9.4 11.7 16.8 18.8 24.1 18.9 16.3
40 Brazil
Senador Guiomard, Brazil
18.7 -- 3.5 2.5 4.7 10.7 11.2 18.3 36.7 73.5 19.5 19.6 5.4 12.9 -- -- -- --
41 Chile
Puerto Aysen, Chile
18.7 9.4 8.1 15 23.2 32.2 40.4 32 26.2 19.3 12.8 6.5 6.9 17.4 17.6 22 -- --
42 Peru
El Tambo, Peru
18.7 13.3 9.9 10.6 17.6 16.8 17.9 22.5 24.9 30.2 20.7 22.9 18 15 -- -- -- --
43 Brazil
Rio Branco, Brazil
18.2 4.5 3.4 3.4 5.4 12.4 13.7 20.1 40.6 75.8 18.2 19.3 3.7 12.6 14.7 16 -- --
44 Chile
Puerto Montt, Chile
17.9 4.8 3.1 10.9 21.4 26.9 33 30.7 35.5 22.3 14.3 9 7 16.6 18.9 26.4 22.6 29.6
45 Chile
Quillota, Chile
17.7 5.8 10.1 13 15.6 34.7 36 22.4 28.6 17.8 8.9 8.6 10.5 18.9 -- -- -- --
46 Chile
Valparaiso, Chile
17.7 7.1 11.5 15.4 15.6 41.6 30.8 19.9 26 16.1 9.3 8.4 9.7 14.2 12.9 14.4 13.4 13.8
47 Brazil
Brasileia, Brazil
17.6 7.9 5.6 3.5 6.5 12.6 14.9 19.5 28.9 62.7 20.3 22.6 6.2 15.4 18.6 -- -- --
48 Chile
Linares, Chile
17.5 5.4 15.8 13.5 19.5 38.2 30.7 29.8 25.7 20.2 8.7 8 6.8 17.9 18.7 27.6 25.5 27.1
49 Brazil
Barra Mansa, Brazil
17.2 -- -- -- -- 17.2 20.2 24 20.9 18.8 17 10.2 9.2 -- -- -- -- --
50 Brazil
Cubatao, Brazil
17.1 17.4 14.3 15.4 14.6 18.6 19.1 26.4 19.5 15.1 17.4 11.5 13.4 17 -- -- -- --
1-50 of 133
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