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 Czech Republic
Rajec-Jestrebi, Czech Republic
25.4 34.1 19.1 48.4 17.7 11.7 9.8 9.5 10.4 12.7 27.2 49.1 53.3 26.7 -- -- -- --
2 Czech Republic
Novy Knin, Czech Republic
21.2 17.4 13.4 36.8 22.5 18.6 14.6 16.4 13.8 -- 22.5 30.7 -- 23 -- -- -- --
3 Czech Republic
Vyskov, Czech Republic
20.8 21.2 15.7 31.6 19 14.5 11.8 10.2 14.5 13.4 25.1 35.7 30.2 31 -- -- -- --
4 Czech Republic
Dolni Lutyne, Czech Republic
20.7 22.5 18 44.3 19.7 16 11.9 9.4 11.8 10 17.9 30.4 31.5 22.8 20.9 27.7 35.8 32.3
5 Czech Republic
Frydlant, Czech Republic
20.2 22.5 15 35.2 22.4 10 14.8 10.6 15.1 14.9 20.9 35.8 35.9 22.2 19.3 19.1 -- --
6 Czech Republic
Rychvald, Czech Republic
19.7 8.3 15.1 41.1 20.6 16.9 13.3 11.7 13 10.9 16.7 29.6 32.4 27.1 -- 17.1 -- --
7 Czech Republic
Karvina, Czech Republic
19.2 9.1 12.5 35.9 18.2 15.7 12.8 11.4 15.1 10.9 17.9 29.3 34.4 33 18.3 22.1 27.1 24.6
8 Czech Republic
Ostrava, Czech Republic
18.7 18.7 12.8 35.4 17 14.3 12.7 10.2 13.1 10.5 16.7 29.8 31.9 19.6 16.8 20.9 30.1 27.8
9 Czech Republic
Havirov, Czech Republic
18.3 17.8 12.6 34.5 16.4 13.4 11.9 11.3 13.9 11 16.8 29.4 30.2 19.6 18 20.3 28.8 26.7
10 Czech Republic
Tesin, Czech Republic
17.6 16.2 12.7 34.4 16.8 14.4 11.3 11.3 13.2 10.1 14.5 25.5 30.9 19.5 17.9 20 29.6 27.2
11 Czech Republic
Trinec, Czech Republic
17.5 16.2 12.4 34.2 16.8 12.6 10.4 9.2 13.3 9.5 15.6 30.7 28 18.2 15.1 18.2 26.5 26.7
12 Czech Republic
Frydek-Mistek, Czech Republic
17.2 16.1 11 34.3 15.8 12.3 11 9.8 13.7 9.9 16.1 27.1 28.9 17.8 16.2 17.6 26.9 25
13 Czech Republic
Litomerice, Czech Republic
16.9 20.4 11.9 26 15.4 12.5 12.3 10.3 11.8 10.7 22.2 29.1 21 19 12.4 -- -- --
14 Czech Republic
Roznov pod Radhostem, Czech Republic
16.8 9.2 13.1 33.1 15 10.5 9.3 8.6 11.1 8.6 17 26.3 29.8 -- -- -- -- --
15 Czech Republic
Klatovy, Czech Republic
16.7 15.4 11.6 32.8 17.4 12.3 10 9.1 10.4 9 17.7 25.7 28.8 20.9 -- 10.8 -- --
16 Czech Republic
Decin, Czech Republic
16 16.6 10.6 27.4 12.3 12.5 11.7 10.6 11.9 11 20.1 23.2 23.8 17.1 16.4 17.8 23.1 23
17 Czech Republic
Studenka, Czech Republic
15.8 18.1 11.3 31.1 13.2 11.8 11.1 9.4 11.7 8.8 13 25.2 24.2 17.2 16.2 18 25.4 24.3
18 Czech Republic
Moravska Trebova, Czech Republic
15.8 17.9 12 31.1 13.1 10.7 9.7 9.5 9.7 8.6 16.4 24.7 25.1 17 16.2 18.9 23 18.9
19 Czech Republic
Uherske Hradiste, Czech Republic
15.7 15 12.7 26.6 12.9 10.5 9.6 10.6 13.5 9.6 17 22.3 25.1 18.3 15.3 -- -- --
20 Czech Republic
Zlin, Czech Republic
15.7 16.7 12.9 31.5 13.5 11 8.8 8.3 10.7 7.7 14.8 23 25.1 14.7 13 16.5 21.7 21.3
21 Czech Republic
Prerov, Czech Republic
15.5 17.9 11.6 27.7 12.8 10.6 10.6 9.6 11.3 8.4 14.8 23.9 26.9 16.2 15.5 17.9 22.9 24.4
22 Czech Republic
Valasske Mezirici, Czech Republic
15.4 16.2 11.2 30.9 12.8 11.3 10.4 9.5 12.6 8.5 13.9 23.8 24.1 17.4 15 17.2 24.8 24.9
23 Czech Republic
Opava, Czech Republic
15.2 14.1 9.6 30.9 13.5 11.2 9.7 8.7 11.8 8.4 12.4 24.1 26.9 15.8 14.9 16.9 24.5 22.7
24 Czech Republic
Belotin, Czech Republic
15.1 7.1 11.8 29 12.7 10.6 10.5 9.8 12.7 8.8 14.5 22.6 27.1 16.5 -- 17.6 23.7 23.4
25 Czech Republic
Steti, Czech Republic
15 8.4 9.6 26.8 12.6 11.1 9.8 9 9.9 8.7 20.1 23.9 25.7 13 -- 16.3 -- --
26 Czech Republic
Olomouc, Czech Republic
14.6 19 12 26.3 11.3 9.9 9.3 10.3 12 7.3 14.4 20.9 20.8 17.7 15.8 16.1 19 20.4
27 Czech Republic
Beroun, Czech Republic
14.2 11.6 9.1 25.3 12.1 11.8 10.9 10.9 10.8 9.2 16.4 20.3 22.2 15.3 14 15.6 22.5 18.8
28 Czech Republic
Chocen, Czech Republic
14.2 -- -- -- 16.4 11.8 11.5 9.8 11.7 11 18.1 16.1 21.5 -- -- -- -- --
29 Czech Republic
Karlin, Czech Republic
14.1 3.7 7.6 21.5 11 12.1 11.6 12.3 12.5 10.4 18 19.3 21.3 -- -- -- -- --
30 Czech Republic
Brno, Czech Republic
13.9 16.6 11 24.4 11.7 10.2 8.5 8.3 9.1 7.8 15 20.8 22.9 15.4 13.5 15.7 20.4 18.8
31 Czech Republic
Usti nad Labem, Czech Republic
13.8 11.9 9.3 21.2 10.7 9.5 10 8.2 9.6 8.6 19.5 23.6 22.5 12.9 12 14.1 18.3 17
32 Czech Republic
Menany, Czech Republic
13.6 8.6 9.5 22 12.2 12.3 13.1 12.1 14 9.8 12.1 13.9 20 -- -- -- -- --
33 Czech Republic
Tabor, Czech Republic
13.3 10.7 10 22.6 11.5 10.4 9.1 9.4 10.1 8.9 14.5 18.4 20.6 13.7 12.7 -- -- --
34 Czech Republic
Hradec Kralove, Czech Republic
13.3 12.9 6.3 23.6 10.9 10.7 10.5 10.3 10.9 8.1 13.9 20.2 20.1 14.5 13.7 14.8 19.7 19
35 Czech Republic
Marianske Radcice, Czech Republic
13.3 9.7 10 23.6 11.2 10.5 10.7 8.9 11.7 7.9 16 19.3 19.8 14.5 14.9 15.5 20.5 18.7
36 Czech Republic
Teplice, Czech Republic
13.3 10.3 8.7 21 9.8 10.9 11.7 9.3 10.6 8.6 16.9 20.4 21.3 13.3 13.4 14.2 19.1 18.8
37 Czech Republic
Kladno, Czech Republic
13.1 8.6 8.8 24.3 11.7 10.4 10 9.8 10.8 8.8 15.7 17.2 20.5 12 12.3 12.2 19 18
38 Czech Republic
Mlada Boleslav, Czech Republic
13.1 13.8 8.4 22.2 10.6 11 10.4 9.9 10.2 8.4 14.7 19.1 18.9 13.4 13 15.6 19.1 15.9
39 Czech Republic
Kutna Hora, Czech Republic
13 5.5 8.1 24.8 12.3 10.9 9.7 9.8 10.2 7.2 13.3 19 19.6 16 -- 12 -- --
40 Czech Republic
Most, Czech Republic
12.9 8.5 8.6 22.8 10.5 10.3 11.3 10 11.8 8 15.3 18.6 18.8 14.1 13.8 15.1 21.7 18.3
41 Czech Republic
Pardubice, Czech Republic
12.8 13.5 7.7 25 10.7 9.9 9.8 9.1 10.1 7.3 13.2 17.9 17.7 13.8 12.5 14.7 19.4 18.3
42 Czech Republic
Rozdalovice, Czech Republic
12.7 15.3 9 21.5 9.9 9.8 8.7 9.5 9 7.1 12.6 17.7 21.8 13.4 13.6 13 19.2 18.6
43 Czech Republic
Prostejov, Czech Republic
12.4 10.7 10.1 20 10.1 9.1 8.2 8.1 10 7.2 13.3 17.8 20.3 14.3 12.5 -- -- --
44 Czech Republic
Znojmo, Czech Republic
12.2 10.4 7.5 20 8.4 8.3 8.7 10 9.9 7.5 14.2 17.6 24.2 11.8 11.9 14.2 19.7 17.4
45 Czech Republic
Prague, Czech Republic
11.9 8.6 7.1 20.4 10.7 10.8 9.6 9.9 10.1 7.9 13.9 15.8 17.8 11.3 10.9 11.5 17.4 15.6
46 Czech Republic
Hodonin, Czech Republic
11.8 4.9 9.7 21.1 9.6 8 6.3 7.2 8.3 6 13.2 19.6 22.8 9.9 -- 14.8 16.6 17.8
47 Czech Republic
Chomutov, Czech Republic
11.8 10.5 8.3 18.1 9.9 10.1 10.4 8.7 10.8 8 12.9 15.1 17.1 11.3 11.9 -- -- --
48 Czech Republic
Liberec, Czech Republic
11.7 12.1 7.1 20 10.7 10 9.2 9.2 9.5 7.6 12.2 15.1 17.5 11.4 11.6 12.5 18.4 15.8
49 Czech Republic
Trutnov, Czech Republic
11.6 10.5 9.9 19.6 8.6 11 10.5 9.6 11.9 8.3 9.7 12.3 13.5 14.2 12.9 -- -- --
50 Czech Republic
Kamenny Ujezd, Czech Republic
11.6 10.2 7.6 22.1 11.7 10.9 9 8.4 9.1 6.6 10.7 14.8 17.1 10.6 11.5 12 16.4 16.9

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