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
9171
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Katoomba

Australia

3.4
5.6
--
--
--
--
--
--
--
9172
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Orange

Australia

3.4
3.8
5.4
5.7
12.8
9.9
--
--
--
9173
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Gold Coast

Australia

3.4
2.8
4.3
2.7
4.7
--
--
--
--
9174
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Wynnum West

Australia

3.4
3.4
3.8
3.8
4.1
5
8.1
--
--
9175
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Warradale

Australia

3.4
3.3
3.1
--
--
--
--
--
--
9176
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Queenstown

Australia

3.4
3.4
2.7
3.6
4.3
6.7
6.3
--
--
9177
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Newport

Australia

3.4
4.4
3.3
--
--
--
--
--
--
9178
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Spotswood

Australia

3.4
4.3
3
--
--
--
--
--
--
9179
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Brigadoon

Australia

3.4
3.3
3
--
--
--
--
--
--
9180
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Karratha

Australia

3.4
4.3
5
--
--
--
--
--
--
9181
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Swanbourne

Australia

3.4
3.6
4.2
--
--
--
--
--
--
9182
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Lake Loon

Canada

3.4
2.8
--
--
--
--
--
--
--
9183
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Mistissini

Canada

3.4
3.6
7.6
3.4
5.2
--
--
--
--
9184
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Old Crow

Canada

3.4
--
--
--
--
--
--
--
--
9185
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Reykjavik

Iceland

3.4
3.8
3.9
3.3
6.4
7.2
5.5
--
--
9186
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Clonskeagh

Ireland

3.4
4.1
5.7
6.8
6.5
--
--
--
--
9187
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Drumcondra

Ireland

3.4
5.1
4.5
0.1
4.3
--
--
--
--
9188
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Bodø

Norway

3.4
3.4
3.2
--
--
--
--
--
--
9189
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La Granja de San Ildefonso

Spain

3.4
2.8
5.2
5.8
5.6
5
5.4
5
--
9190
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Haparanda

Sweden

3.4
--
--
--
--
--
--
--
--
9191
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Arbuckle

USA

3.4
3.8
6.2
6.2
14.5
--
--
--
--
9192
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Arcata

USA

3.4
3
5.1
5.2
5.4
--
--
--
--
9193
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Bonny Doon

USA

3.4
3.7
5.1
4.3
5.9
7
4.8
--
--
9194
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McKinleyville

USA

3.4
3.3
5.3
5.5
5.6
9
6.5
--
--
9195
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Monte Rio

USA

3.4
3.5
5.7
7.2
8.2
11.8
7.8
--
--
9196
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Moss Beach

USA

3.4
3.6
6.3
7.4
7.7
--
--
--
--
9198
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Shingletown

USA

3.4
3.5
5.2
6.1
14.9
15.6
6.4
--
--
9199
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June Park

USA

3.4
3
--
--
--
--
--
--
--
9200
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Kaloko

USA

3.4
--
--
--
--
--
--
--
--
9201
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Keaau

USA

3.4
--
--
--
--
--
--
--
--
9202
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Puako

USA

3.4
2.4
2.8
2.8
4.3
--
--
--
--
9203
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Surry

USA

3.4
3.3
5.1
4.7
5.9
--
--
--
--
9204
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Middleborough

USA

3.4
3.3
6.9
4.9
--
--
--
--
--
9205
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Brookings

USA

3.4
3.3
4.3
4.9
6
9
6.5
--
--
9206
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Forest Grove

USA

3.4
3.5
5.4
7.7
5.8
--
--
--
--
9207
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East Charlotte

USA

3.4
--
--
--
--
--
--
--
--
9208
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Camano

USA

3.4
3.2
4.9
7.4
5.6
--
--
--
--
9209
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Cathlamet

USA

3.4
3.1
5.1
7.4
5.1
--
--
--
--
9210
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Monroe North

USA

3.4
3.5
5.1
--
--
--
--
--
--
9211
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Port Angeles

USA

3.4
3.4
5.6
7.2
7.7
10.4
8.1
10
13.6
9212
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Taholah

USA

3.4
2.8
4.3
4.6
4.5
--
4.5
4.6
4.4
9213
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Ordino

Andorra

3.3
4.2
5.5
5.4
7.3
7.4
--
--
--
9214
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George Town

Australia

3.3
3.3
2.8
2.4
3.3
4.3
4.1
4.4
4.1
9215
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New Town

Australia

3.3
2.8
2.5
--
--
--
--
--
--
9216
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Waltham

Grenada

3.3
3.7
2.9
--
--
--
--
--
--
9217
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Panama City

Panama

3.3
4.3
--
--
--
--
--
--
--
9218
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Cabo Rojo

Puerto Rico

3.3
2.6
--
--
--
--
--
--
--
9219
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Carmel Valley Village

USA

3.3
3.5
--
--
--
--
--
--
--
9220
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Monterey

USA

3.3
3.5
4.8
5.7
6.3
--
7.2
--
--
9221
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Nipomo

USA

3.3
4.4
5.5
7.1
7.4
9.1
6.2
8.4
9.7
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