World's most polluted cities (historical data 2017-2022)

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

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2022

NEW

World air quality report

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Meets WHO guideline
Exceeds by 1 to 2 times
Exceeds by 2 to 3 times
Exceeds by 3 to 5 times
Exceeds by 5 to 7 times
Exceeds by 7 to 10 times
Exceeds by over 10 times
RankAscending icon
City 2022 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2021 2020 2019 2018 2017
1 Romania
Santana de Mures, Romania
29.7 61.7 - - - 15.6 13.2 12.9 15.5 13.2 34.2 51.1 57.2 28.3 - - - -
2 Romania
Ojdula, Romania
28.1 42.8 43.6 41.6 22.5 15.6 12.8 13.7 16.3 14.6 28.5 41.9 50.3 30.3 - - - -
3 Romania
Cluj-Napoca, Romania
26.4 40.7 35.4 38.3 19.4 15.4 13.5 12.5 15.1 14.7 29.7 39.8 42.3 20.1 13.1 15.7 21.4 -
4 Romania
Popricani, Romania
23.2 27.1 29.2 37.8 20.9 11.5 11.9 11.4 16.9 12.5 21.8 39.7 40.7 31 - - - -
5 Romania
Targu-Mures, Romania
22.9 38.6 36.4 29.4 13.9 9 8.8 10.8 13.9 11.9 30.4 41.1 44.5 22.3 15.1 - - -
6 Romania
Modelu, Romania
20.5 19.9 26.1 23.6 10.4 8.3 8.8 13.8 57.9 17 23.7 28.2 23.3 21 20.1 - - -
7 Romania
Popesti-Leordeni, Romania
19.7 25.4 - - 16.4 13.3 14.2 12.8 14.5 13 24.1 36.5 30.5 - - - - -
8 Romania
Bucuresti, Romania
19.2 - - - 14 10.7 13.7 13.4 15.3 14.4 24.1 35.2 30.8 - - - - -
9 Romania
Mogosoaia, Romania
19.1 - - - 16.9 11.6 12.2 12.2 13.1 12.1 25.2 35.8 32 - - - - -
10 Romania
Otopeni, Romania
19 29.1 31.2 29.9 15.3 9.7 9.7 9.1 10.3 8.3 17.9 30.7 27 25.8 - - - -
11 Romania
Craiova, Romania
18.4 19.6 26.5 28.3 10 7.8 11.5 12.1 11.6 10.3 20.7 30 34 21 - - - -
12 Romania
Radauti, Romania
17.7 15.2 16.4 24.2 15.3 7.9 8.4 9 12 10.8 24 40.7 29.4 20.3 - - - -
13 Romania
Miercurea-Ciuc, Romania
17.3 30.2 33.1 29.2 14.1 11.7 8.8 8.4 10.7 8.9 20.3 - - - - - - -
14 Romania
Iasi, Romania
17.3 17.8 23.8 26.9 13.8 10.3 8.6 9.8 18.9 13.1 19.8 20.7 24.6 20.6 - 22.4 27 -
15 Romania
Bucharest, Romania
17.1 13.9 19.8 19.2 12.3 9.9 11.4 11.3 13 10.2 20.9 33.8 29.2 14.9 15.5 18.4 20.3 -
16 Romania
Magurele, Romania
16.5 19.5 26.3 20.4 12.9 11.5 11.6 11.4 12.3 11.4 17.2 22.9 21.6 15.5 - 15.7 18.9 -
17 Romania
Brasov, Romania
16.4 17.4 22.9 24.3 10.3 9.4 9.8 10.8 12.3 8.7 17.6 34.2 31.7 17.3 18.3 18 21.3 -
18 Romania
Slatina, Romania
14.9 14.7 20.9 18.8 12.2 13.3 12.5 12.3 13.4 9 14.6 22.6 19.4 14.1 - - - -
19 Romania
Timisoara, Romania
13.9 18.7 11 17.5 10.4 8.4 7.6 8.6 10.1 8.8 16.4 27.2 20.5 14.3 - - - -
20 Romania
Caciulati, Romania
13.2 17.7 21.2 18.8 10.7 8 8.5 10.5 9.2 6.9 11.5 17.2 19.4 15.4 - - - -
21 Romania
Holboca, Romania
13.1 14 18.6 22.8 11.6 8.3 8.6 7.1 8.9 5.7 13.6 20.7 21.7 - - - - -
22 Romania
Drobeta-Turnu Severin, Romania
12.7 17.9 14.7 23.5 9.8 8.7 8.1 7.4 7.5 7.3 11.1 16.5 18 20 12.7 - - -
23 Romania
Sibiu, Romania
12.4 11.4 10.2 17.1 8 4.6 5.5 8.9 12.4 12.2 17.5 27.2 30.4 9.7 - - - -
24 Romania
Arad, Romania
12.3 24.4 14.6 22.4 13.8 7 6.4 7.9 9.6 8.1 11.6 15.3 15 16.3 - - - -
25 Romania
Satu Mare, Romania
12.3 21.9 12.1 21.4 8.5 9.8 6.7 5.6 7 7.3 13.4 20.8 23.7 15.3 - - - -
26 Romania
Scheia, Romania
11.4 8.1 12.4 17.5 11 9.8 9.7 11.4 8.9 7.2 11.2 17.3 18 15.3 15 - - -
27 Romania
Constanta, Romania
11.3 11.6 15.1 16.2 13.7 10.4 10.3 7.7 10.8 7.7 9.4 11.6 6 12.1 - - - -
28 Romania
Aroneanu, Romania
11 - 14.9 19.6 11.1 6.8 7 7.7 10.6 6.6 9.8 14 16.3 - - - - -
29 Romania
Galati, Romania
8.5 8.1 8.2 10.5 7.6 7.1 8.2 7.2 6.8 8.9 11 10 18 7 - - - -

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