2017-2025

World's most polluted cities

The most polluted cities according to data aggregated from over 80,000 data points.

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2025

World Air Quality Report

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2025

World Air Quality Report

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PM2.5 legend
0-5Meets WHO guideline
5.1-10Exceeds by 1 to 2 times
10.1-15Exceeds by 2 to 3 times
15.1-25Exceeds by 3 to 5 times
25.1-35Exceeds by 5 to 7 times
35.1-50Exceeds by 7 to 10 times
>50.1Exceeds by over 10 times
RankCity202520242023202220212020201920182017
3617
flag

Sondika

Spain

9.3
8.2
10
11.4
9.5
9
--
--
--
3618
flag

Puigdelfi

Spain

9.3
7.7
--
--
--
--
--
--
--
3619
flag

Cee

Spain

9.3
9.9
9.4
--
--
--
--
--
--
3620
flag

Eiken

Switzerland

9.3
7.5
5.9
--
--
--
--
--
--
3621
flag

Lutsk

Ukraine

9.3
9.4
10
--
--
--
--
--
--
3622
flag

Battersea

United Kingdom

9.3
8
9
10.8
--
--
--
--
--
3623
flag

Dorking

United Kingdom

9.3
8.1
8.1
--
--
--
--
--
--
3624
flag

Ilford

United Kingdom

9.3
8.5
8.6
9.1
--
--
--
--
--
3625
flag

Longstanton

United Kingdom

9.3
8.3
6.2
--
--
--
--
--
--
3626
flag

Luton

United Kingdom

9.3
7.7
8.3
8.9
9.4
8.5
9.8
9.5
10.1
3627
flag

Nottingham

United Kingdom

9.3
7.8
9.1
10.2
8.3
8.6
11
11
11.6
3628
flag

Rotherham

United Kingdom

9.3
10.1
--
--
--
--
--
--
--
3629
flag

Stoke Ferry

United Kingdom

9.3
9.3
6.3
--
--
--
--
--
--
3630
flag

Conway

USA

9.3
9.3
--
--
--
--
--
--
--
3631
flag

North Little Rock

USA

9.3
11.3
11.9
10.4
6.8
7.8
8
8.3
8.6
3632
flag

Taft Mosswood

USA

9.3
12.3
--
--
--
--
--
--
--
3633
flag

Columbus

USA

9.3
9.6
10.9
11.8
8.8
7.9
8.9
7.1
8.7
3634
flag

Roswell

USA

9.3
9.4
--
--
--
--
--
--
--
3635
flag

Alton

USA

9.3
8.6
10.5
10.7
14.4
--
--
--
--
3636
flag

Beecher

USA

9.3
--
--
--
--
--
--
--
--
3637
flag

Braidwood

USA

9.3
7.4
--
--
--
--
--
--
--
3638
flag

Wood River

USA

9.3
7
7
--
--
--
--
--
--
3639
flag

East Chicago

USA

9.3
--
--
--
--
--
--
--
--
3640
flag

Lake Shore

USA

9.3
9.5
--
--
--
--
--
--
--
3641
flag

Holland

USA

9.3
8
12.2
8.7
7.3
--
--
--
--
3642
flag

Milford

USA

9.3
7.5
11.4
--
--
--
--
--
--
3643
flag

Rogers

USA

9.3
14
--
--
--
--
--
--
--
3644
flag

Columbus

USA

9.3
8.8
14.2
13.4
14.2
--
--
--
--
3645
flag

New Town

USA

9.3
9.5
6.1
--
--
--
--
--
--
3646
flag

Portsmouth

USA

9.3
7.7
8.5
--
--
--
--
--
--
3647
flag

Merlin

USA

9.3
7.1
6.4
10.3
14.4
--
--
--
--
3648
flag

Bath

USA

9.3
8.8
13.3
--
--
--
--
--
--
3649
flag

Catawba

USA

9.3
--
--
--
--
--
--
--
--
3650
flag

Memphis

USA

9.3
8.7
9.7
8.6
9
8.1
8.2
8.1
7.9
3651
flag

Gunn Point

Australia

9.2
8.2
--
--
--
--
--
--
--
3652
flag

Vomp

Austria

9.2
8.9
9.3
--
--
--
--
--
--
3653
flag

Aarschot

Belgium

9.2
9.2
9.4
10.5
12.1
10.1
11.6
13.7
12.7
3654
flag

Tournai

Belgium

9.2
8
8.3
8.8
8.9
7.2
11
11.1
10.9
3655
flag

Varzea Grande

Brazil

9.2
--
--
--
--
--
--
--
--
3656
flag

Altona

Canada

9.2
8.8
--
--
--
--
--
--
--
3657
flag

Ajax

Canada

9.2
7.7
10.9
--
--
--
--
--
--
3658
flag

Montreal

Canada

9.2
8.9
11.1
7.9
10.4
9.5
10
7
6.8
3659
flag

Thetford-Mines

Canada

9.2
7.2
8.9
7.5
--
--
--
--
--
3660
flag

Martensville

Canada

9.2
8
14.4
--
--
--
--
--
--
3661
flag

Shannan

China

9.2
9.2
8.8
8.5
8.9
8.7
9.6
10
12
3662
flag

Agia Marina

Cyprus

9.2
10
7
--
--
--
--
--
--
3663
flag

Pointe-a-Pitre

France

9.2
9.6
9
--
--
--
--
--
--
3664
flag

Ludwigsburg

Germany

9.2
8.4
8
9.8
9.5
9.1
--
--
--
3665
flag

Alt Zauche-Wusswerk

Germany

9.2
8.6
7.2
7.7
9.8
9.7
10.5
13
--
3666
flag

Potsdam

Germany

9.2
9.3
8.7
10.4
10.9
9.7
11.5
14.8
14.9
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