2017-2023

World's most polluted cities

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

2023

World Air Quality Report

NEWSROOM
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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
2023 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2022 2021 2020 2019 2018 2017
701 Kazakhstan
Talghar, Kazakhstan
28.1 -- 60.8 42.5 31.2 18 16.3 12.7 12 18.9 26 36.3 50.9 -- -- -- -- -- --
702 Serbia
Uzice, Serbia
28.1 64.1 38.5 31.6 12.4 17.9 15.9 14.3 15.1 15.9 20.9 29.6 57.5 40 32.1 31.7 -- -- --
703 South Africa
Springs, South Africa
28.1 14.9 10.9 16.5 30.7 28.8 57.2 51.3 40.5 35.1 26.3 17.5 11.3 -- -- -- -- -- --
704 Tajikistan
Bokhtar, Tajikistan
28.1 65.4 31.4 14.3 12.5 15.2 22.3 31.4 40 39.7 39.8 3.7 -- -- -- -- -- -- --
705 Turkey
Kestel, Turkey
28.1 31.2 27.7 24.3 20.8 26.2 22.6 42.1 40.8 20.3 28.5 21.3 31.2 31.2 22.9 28 -- -- --
706 China
Guigang, China
28 45.8 37.1 41.4 31 24 15.6 17.4 13.4 16.2 21.7 34.7 37.1 27 29.9 28.5 33.9 38.7 41.1
707 China
Nantong, China
28 43.5 29.7 36 32.3 23.9 19.5 13.6 11.6 13.9 23.9 34.2 52.5 25.4 30.6 33.5 37.7 40.5 38.5
708 India
Gulbarga, India
28 52.5 76.4 43.3 35.5 8.7 17.6 11 15.5 22 21.8 19.5 16.8 -- -- -- -- -- --
709 India
Honnali, India
28 36.6 46.7 35.9 28.6 20.2 15.5 9.7 13 10.2 41.7 37.4 40.2 26 15.9 -- -- -- --
710 India
Chennai, India
28 46.1 35.5 24.7 19.5 26.9 24.6 20.4 23.7 17.1 28.4 28.9 40.1 25.3 25.2 26.5 34.6 43.2 39.8
711 Malaysia
Petaling Jaya, Malaysia
28 21.6 20.4 21.9 35.3 28.6 31.9 22.5 27.6 38.3 46.7 20 20.2 26.5 32.5 23.6 19.6 -- --
712 Peru
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 -- -- --
713 Serbia
Valjevo, Serbia
28 52 50.6 35.8 30.3 17.8 15.9 14.4 15.3 14.6 16.9 29.6 52.3 31.8 34.7 41.5 37.9 -- --
714 Thailand
Bang Nam Chuet, Thailand
28 40.4 43.6 41.6 45.9 23.5 12.2 12.1 13 10.5 28.6 33.1 35.1 -- -- -- -- -- --
715 Vietnam
Bien Hoa, Vietnam
28 26.3 34.3 34.1 27.7 33.5 26 23.5 23.9 23.6 28.8 29.3 24.4 -- -- -- -- -- --
716 China
Mudanjiang, China
27.9 49 37.1 33.5 42.8 18.2 13 9.9 8.4 13.5 26.1 37.4 45.3 22.9 28.4 29.6 31.7 28.6 34.7
717 China
Jianguang, China
27.9 50.1 40 35.3 25 25.3 18.3 12.1 18.5 18.1 28.6 32.1 30.9 27.3 27.9 -- -- -- --
718 China
Lushun, China
27.9 35.1 45.5 44.9 30.7 26.6 17.4 15.8 16.9 17.6 23.7 24.5 33.8 -- -- -- -- -- --
719 Thailand
Nong Han, Thailand
27.9 21.1 41.1 73.9 101.1 26.2 9 5.3 10.4 6.2 7.4 14.8 20.2 -- -- -- -- -- --
720 Thailand
Song Khanong, Thailand
27.9 33.4 39.3 39.4 39.4 -- 15.4 17.5 19.8 16.2 24 29.5 36 -- -- -- -- -- --
721 Turkey
Elbistan, Turkey
27.8 65.6 69.5 25.4 13.5 10.6 7.1 14.7 21.2 19.9 26.1 27.8 50.2 23.6 29.3 -- -- -- --
722 China
Guankou, China
27.7 53.5 39.6 33.9 25.8 25.6 20.3 15 20.3 20.2 30.4 34 37.8 26 27.7 -- -- -- --
723 China
Xiangxiang, China
27.7 94.6 33.9 15.9 23 24.9 19.6 15.4 21.8 21.3 35.5 34.7 40.2 31.3 40.3 -- -- -- --
724 China
Haidongdiqu, China
27.7 43 39.5 35.3 40.3 26.8 18.3 15.6 16.1 17.7 19.8 28 33.5 26.3 28 30.8 38 41.4 --
725 China
Yanan, China
27.7 45.9 47.4 37.8 41.5 20.4 14.8 14.8 15.3 16.4 18 24.8 37 26.8 28.7 29.5 31.3 35 39.2
726 Thailand
Samut Songkhram, Thailand
27.7 46.9 48.9 42.8 44.5 23.1 11.4 10.4 12.6 9 20.3 27.3 36.8 23.2 24.4 25.8 26.3 -- --
727 India
Davangere, India
27.6 37.7 41.9 34.7 28.2 20 15.9 10 11.3 11.2 41.9 41 39.9 25.2 23.4 -- -- -- --
728 Indonesia
Surabaya, Indonesia
27.6 25.3 18.4 24.1 16.4 19.9 21.2 31.3 31.2 26.2 36.9 39.8 39.7 34.4 34.8 33.4 40.6 -- --
729 Canada
Grimshaw, Canada
27.5 -- -- -- -- 53.1 27.4 38.9 34.7 55.6 9.5 11.1 5 -- -- -- -- -- --
730 China
Nanzhou, China
27.5 127.8 36.9 40.6 28 24.2 12.8 8 19.5 21 40.6 40.2 41.1 33.9 37.7 -- -- -- --
731 China
Dehong, China
27.5 35.4 45.1 52.9 53.4 31.1 16.7 13.6 10.3 15.1 14.4 19.9 25.5 23.5 25.7 19.1 23.2 33.7 29.7
732 India
Semmandalam, India
27.5 50 42.7 29.8 18.8 22.7 16.8 14 18.3 15.9 24 27.8 28.8 28.1 -- -- -- -- --
733 Malaysia
Putrajaya, Malaysia
27.5 16.9 13.2 17.9 34 24.9 32.6 28.7 38.8 42.5 43.3 18.4 18 16 19.4 19.2 22.4 -- --
734 Thailand
Kut Sa, Thailand
27.5 34.1 44.9 61.1 59.6 24.4 10 6.3 12.2 7 17 26.1 27.1 -- -- -- -- -- --
735 Thailand
Salaya, Thailand
27.5 39.9 44.7 48.9 48.6 23.1 11.6 8.9 12.3 8.8 21.5 28.7 33.8 24.8 -- -- -- -- --
736 Chile
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 -- -- -- --
737 China
Poyang, China
27.4 45.5 35.4 32 23 23.8 20 13.7 19.4 21.1 32.6 31.5 29.3 24.1 20.4 -- -- -- --
738 India
Belgaum, India
27.4 72.5 47.8 27.7 25.7 18.4 17.4 12.6 14.6 9 20.7 22.6 35.7 45 28.1 -- -- -- --
739 Peru
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 -- -- -- -- --
740 Thailand
Phetchabun, Thailand
27.4 29 54.8 58.2 54.9 -- 13.2 12.9 16.2 10.1 13.4 22.8 24.6 20.2 25.8 -- -- -- --
741 China
Shangluo, China
27.3 51.7 50.5 30.9 42.4 19.8 15.7 13.9 15.2 15.3 18.2 24.4 34.8 27.1 24.9 28.2 32.3 36.3 35.5
742 China
Yuyao, China
27.3 36.7 29 32.2 29.1 23.3 20.3 14 16.5 16.9 25 33.5 51.7 25.5 23.5 -- -- -- --
743 South Africa
Sasolburg, South Africa
27.3 17.4 12.8 19.9 22.1 23.3 45.5 44.8 40.9 34.9 26.4 20.9 17.7 26.6 27 25.6 31.4 -- --
744 Turkey
UEskuedar, Turkey
27.3 31.6 24.5 32.3 25.9 29.1 23.7 26 27.4 24.5 23.5 -- -- -- -- -- -- -- --
745 Uganda
Kampala, Uganda
27.3 46.4 38 24.3 15.1 25.9 28.2 41.8 28.7 34.3 24.1 15.9 20.2 39.6 27.6 26.1 29.1 40.8 54.3
746 Kazakhstan
Temirtau, Kazakhstan
27.2 32 41 27.4 20.3 24.3 19.4 14.2 15.6 30.1 31 34.9 36.8 28.1 26.3 -- -- -- --
747 China
Hezhou, China
27.1 44.5 33 37.2 26 23.8 17 17.6 15.7 17.5 25.9 32.3 35.3 25.7 26.4 27.6 30.7 36.9 42.1
748 China
Yantai, China
27.1 38 35.7 41.1 28.3 25.3 16.5 12.8 14.7 17.6 23.6 25.4 44.6 23.3 28 31.8 37.5 29.3 34.3
749 India
Hallimala, India
27.1 43.8 39.6 32.8 26.6 18.2 15.6 13.1 18.1 11.8 37.6 31.4 35.1 27.3 -- -- -- -- --
750 China
Songling, China
27 27.9 40.1 39.6 28.2 27.5 19.4 18.8 18.2 22.8 30.1 22.5 27.7 24.8 31.7 -- -- -- --

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