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
6028
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Pen Argyl

USA

7.2
6.8
--
--
--
--
--
--
--
6029
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Plymouth Meeting

USA

7.2
7
10.1
7.8
9.5
7.5
7.8
7.8
8.8
6030
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Springdale

USA

7.2
6.5
9.8
6.6
12.4
--
--
--
--
6031
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Union

USA

7.2
7.8
8.8
--
--
--
--
--
--
6032
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Timber Lake

USA

7.2
7.1
--
--
--
--
--
--
--
6033
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Kingsport

USA

7.2
7.1
9
5.1
9.7
6.1
7.5
7.2
7.7
6034
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Anderson

USA

7.2
7.6
10.7
--
--
--
--
--
--
6035
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Lockhart

USA

7.2
7.7
4.1
13.1
12.9
--
--
--
--
6036
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Quinlan

USA

7.2
7.8
--
--
--
--
--
--
--
6037
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Bellwood

USA

7.2
--
--
--
--
--
--
--
--
6038
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Charles City

USA

7.2
6.9
9.4
7.1
--
--
--
--
--
6039
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Grundy

USA

7.2
8.1
12
12
11.6
--
--
--
--
6040
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Leesburg

USA

7.2
7
11
9.2
11.4
--
--
--
--
6041
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Montrose

USA

7.2
7.2
--
--
--
--
--
--
--
6042
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Oakton

USA

7.2
7.1
10.2
17
12.6
--
--
--
--
6043
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Purcellville

USA

7.2
7
10.3
9
10.6
9.5
11
--
--
6044
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Yorktown

USA

7.2
--
--
--
--
--
--
--
--
6045
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Almira

USA

7.2
6.6
--
--
--
--
--
--
--
6046
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Manson

USA

7.2
8
6.8
10.8
15.1
--
--
--
--
6047
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Spokane Valley

USA

7.2
6.8
10.1
11.7
11.1
10.4
8.9
9.7
13.3
6048
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Spring Green

USA

7.2
6.4
10.6
--
--
--
--
--
--
6049
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Weyerhaeuser

USA

7.2
5.5
11.6
8.1
--
--
--
--
--
6050
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Westbury

Australia

7.1
6.5
5
5.5
5.9
7.9
8.2
8.7
8.1
6051
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Sao Mateus do Sul

Brazil

7.1
11.4
6.7
--
--
--
--
--
--
6052
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Cornwall

Canada

7.1
6.4
9.6
6.7
6.9
6.2
5.8
6.4
6.2
6053
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Sault Ste. Marie

Canada

7.1
5
8.7
7
9.3
4.6
4.8
5.6
5.1
6054
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Kahnawake

Canada

7.1
8.4
--
--
--
--
--
--
--
6055
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Levis

Canada

7.1
6.9
8.8
7.8
8.2
--
--
--
--
6056
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Saint-Bruno-de-Montarville

Canada

7.1
6.8
9.1
9.1
10.6
--
--
--
--
6057
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Sainte-Thecle

Canada

7.1
6.1
8.6
--
--
--
--
--
--
6058
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Calama

Chile

7.1
7.3
7
6.8
6.5
6.6
6.4
13.9
9.8
6059
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Guarne

Colombia

7.1
12.5
10
9.8
9.4
12
8.5
--
--
6060
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Hillerød

Denmark

7.1
6.5
7.6
--
--
--
--
--
--
6061
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Silkeborg

Denmark

7.1
6.9
6.6
--
--
--
--
--
--
6062
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Paernu

Estonia

7.1
5.5
--
--
--
--
--
--
--
6063
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Joué-lès-Tours

France

7.1
7.1
8.6
8.4
8.9
9.1
10.4
10.3
12.2
6064
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Kourou

France

7.1
10.5
7.9
--
--
--
--
--
--
6065
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Fontainebleau

France

7.1
5.7
6.6
7.5
6.5
6.4
7.4
7.7
7.5
6066
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Villingen-Schwenningen

Germany

7.1
6.3
6.5
8.5
8
7.7
--
--
--
6067
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Eisenach

Germany

7.1
7.6
6.7
8.2
7.6
--
--
--
--
6068
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Suhl

Germany

7.1
8
7
7.3
7.3
--
--
--
--
6069
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Drogheda

Ireland

7.1
6.3
5.8
6.8
6.4
--
--
--
--
6070
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Ennis

Ireland

7.1
5.6
7.9
8.8
7.7
13.7
--
--
--
6071
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Tome

Japan

7.1
6.2
7.4
7
7.1
7.6
--
--
--
6072
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Ina

Japan

7.1
6.1
7.1
7.6
7.2
7.3
8.4
8.5
8.6
6073
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Bourglinster

Luxembourg

7.1
7.3
7.7
9.8
7.7
7.1
7.2
--
--
6074
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Slochteren

Netherlands

7.1
--
--
--
--
--
--
--
--
6075
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De Rijp

Netherlands

7.1
6.9
7.3
8.6
8.7
9.3
--
--
--
6076
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Gisborne

New Zealand

7.1
7.5
7
5.6
8.6
--
--
--
--
6077
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Villena

Spain

7.1
7.5
8.5
--
--
--
--
--
--
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