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
1 Austria
Graz, Austria
14 16.3 18.8 14 9.9 10.8 11.6 9.1 10.3 13.2 13.1 15.4 25.9 11.5 11.5 10.6 -- -- --
3 Austria
Enns, Austria
13.6 14.7 14.6 12.5 9 10.8 10.3 7.5 7.6 19.4 19.5 16.3 21 11.9 10.2 8.9 11.6 16.8 13.8
5 Austria
Kirchstetten, Austria
12.9 18.9 20.4 16 14.2 11.4 10.2 9.1 10.2 12.3 8.2 8.2 18.9 -- -- -- -- -- --
6 Austria
Wolfsberg, Austria
12.7 18.2 19.6 13.7 9 9.4 11.6 8.4 10.4 11 10.5 11 20.1 13.1 13 12.8 13.9 -- --
9 Austria
Leibnitz, Austria
12.5 18.6 20.1 13.1 8.2 8.7 9.1 5.8 6.9 8.1 9 15.3 26.6 13.7 13.3 14.2 -- -- --
10 Austria
Edlitz, Austria
12.1 12.1 14.5 13.5 11.3 12.2 13.6 9.5 11.1 -- -- -- 7.7 15.2 14 12.8 13.5 -- --
12 Austria
Eisenstadt, Austria
12 15.2 15.7 13.6 9.5 11.6 11.3 7.8 8.7 10.7 10.7 9 19.2 11 10.4 10.1 11.3 14 12.8
13 Austria
Klagenfurt am Wörthersee, Austria
12 17.1 21.4 12.7 8.1 8.4 10.8 7.9 10.3 10.7 10.6 11.1 16.7 -- -- -- -- -- --
15 Austria
Klöch, Austria
11.7 12.9 20.2 14.1 8.7 10.1 11 7.7 8.7 10.5 10.3 9.2 14.2 -- -- -- -- -- --
18 Austria
Traun, Austria
11.5 13.9 17.1 13.6 9.8 9.9 9.5 7 7.5 11.5 11.7 11.1 17.2 12 12 11.9 12.9 14.9 14.6
21 Austria
Gern, Austria
11.1 13.6 16.2 15 13 13.1 13.7 8.8 9.7 10.6 7.4 4.6 8.8 -- -- -- -- -- --
28 Austria
Baden, Austria
10.8 12.9 15.6 14.4 11.2 11.6 12.4 8.4 9.6 10.2 7 4.8 13 13.1 12.3 13.8 14.3 18.9 --
30 Austria
Leoben, Austria
10.7 12.2 18 12.9 7.1 8.2 10.2 7.7 8.8 11.1 13.1 10.1 13.3 15.1 13.8 -- -- -- --
34 Austria
Stockerau, Austria
10.6 9.2 13.1 13.6 9.6 10.7 10.1 9.7 8.7 11.2 10.9 8.2 14.9 10.2 10.2 -- -- -- --
35 Austria
Lenzing, Austria
10.6 8 10.2 9.4 7.7 10 9.3 5.2 5.8 14.7 14.6 13.6 19 9.2 9.1 9.7 -- -- --
36 Austria
Steyregg, Austria
10.6 14.9 15.3 11.9 9.1 9.6 9.1 7.3 7.8 8.8 10.5 7.9 15.7 11.4 11.7 11.3 12.3 13.7 14.6
38 Austria
Berndorf, Austria
10.4 13.2 13.2 11.7 7.6 9.2 10.1 7.3 8.3 9.6 9.1 9.4 15.6 -- -- -- -- -- --
45 Austria
Vöcklabruck, Austria
10.1 11.3 12 12 8.5 10.1 9.8 6.3 6.6 10.6 10.2 8.9 14.5 -- -- -- -- -- --
51 Austria
Klosterneuburg, Austria
9.9 12.1 14.5 12.5 9.7 9.3 8.7 5.8 6.1 8.6 9.1 7.5 14.6 9.1 12.8 -- -- -- --
52 Austria
Sankt Pantaleon, Austria
9.8 11.6 12.7 12.2 8.6 9.4 9.1 6.3 6.4 8.6 10 7.6 14.5 10 -- -- -- -- --
53 Austria
St. Valentin, Austria
9.8 11.9 12.6 12.2 8.7 9.5 9.1 6.3 6.5 8.6 10 7.7 14.3 10.4 11.2 10.9 11.3 -- --
55 Austria
Linz, Austria
9.8 14 14.3 11.7 8.8 9.4 8.8 6.4 6.8 8.9 9.6 7.2 11.7 11.8 12.1 11.3 13.3 15.4 13.4
56 Austria
Hainburg an der Donau, Austria
9.7 13 13.6 11.7 10.1 9 8.4 6.3 6.6 8.4 7.9 7.2 14.7 -- -- -- -- -- --
59 Austria
Lustenau, Austria
9.7 12.9 15.2 11.6 5 7.7 10 5.5 6.1 9 10.8 6.6 15.3 12.6 11.6 -- -- -- --
60 Austria
Amstetten, Austria
9.6 12.8 13.9 12 8.9 9.8 8.9 5.6 6.4 8.6 9.7 7.1 12.2 11.2 11.9 -- -- -- --
61 Austria
St. Polten, Austria
9.6 13.4 13.9 10.9 8.3 9.2 9.2 6.6 7.2 8.6 9.9 7 11.7 11.5 11.8 12.1 11 14.3 12.9
62 Austria
Tulln an der Donau, Austria
9.6 12.2 13.1 11.5 9.4 9.4 8.8 6.2 6.5 8.3 9.4 7.6 12.5 -- -- -- -- -- --
64 Austria
Voitsberg, Austria
9.6 15.6 14 9.9 6.2 6.1 6.8 5.6 7.3 6.6 7.2 10.3 21.1 11.2 11.6 11.2 10.6 14.7 12.6
66 Austria
Hallein, Austria
9.5 12 15.8 11.7 7.5 8.9 10.9 8.1 8.2 9.6 9.7 7.1 7.7 11.1 12.9 -- -- -- --
67 Austria
Weiz, Austria
9.4 12.4 12.2 11.6 8.7 8.6 9.3 6.5 7 8 7.7 7.6 13.4 -- -- -- -- -- --
69 Austria
Dürnrohr, Austria
9.4 12.5 13.7 11.8 9.3 9.3 8.6 6.1 6.4 8.1 8.4 6.8 12.3 10.8 10.5 9.6 10.5 11.5 11.5
70 Austria
Mistelbach, Austria
9.4 12.5 13.1 12.1 10.1 9.1 8.5 6.2 6.6 8.6 8.2 7.2 13.7 14.5 10.9 -- -- -- --
71 Austria
Neu-Baumgarten, Austria
9.3 11.4 12.5 11.5 9.5 9.7 8.3 6.8 6.7 8.3 8.9 6.2 11.6 -- -- -- -- -- --
76 Austria
Vienna, Austria
9.1 11.4 12.2 11 8.6 9 8.7 6.1 6.5 8.4 8.9 6.3 12.4 10.5 11.8 11 12.3 15.2 13
77 Austria
Schwechat, Austria
9 11 12.3 11.4 9 8.9 8.7 5.3 5.8 7.8 8.3 6.5 13 10.5 11 10.9 11.6 15.2 13.4
78 Austria
Ziersdorf, Austria
9 8.8 10.8 9.6 8 9.2 9 8.1 7.9 10.2 9.1 6 13.1 9.8 9.2 -- -- -- --
79 Austria
Lauterach, Austria
9 -- -- -- 7.3 10.1 12.6 8.5 8 9.8 9.5 5.9 7.6 -- -- -- -- -- --
81 Austria
Langenrohr, Austria
8.9 11.4 12.8 11 9.2 9 7.5 6 6 7.6 8.3 6.4 12.3 -- -- -- -- -- --
82 Austria
Viehofen, Austria
8.9 11.8 12.9 10.9 8.8 9.2 8.2 5.5 6 7.4 8.9 6.2 11.5 9.7 -- -- -- -- --
83 Austria
Kriegen, Austria
8.9 10.7 11.5 9.4 8.5 9.5 9.6 7.1 5.6 8.5 9.9 5.9 11.4 -- -- -- -- -- --
84 Austria
Illmitz, Austria
8.8 10.5 12 10.9 8.8 9.1 8.5 5.3 6.1 7.9 6.3 5.9 13.5 9.6 10.2 10.2 11.1 13.9 12.5
85 Austria
Gänserndorf, Austria
8.8 10.6 11.6 10.5 9.4 8.4 8 6.5 6.5 8 7.3 6.8 12.5 9.7 9.7 -- -- -- --
86 Austria
Höfing, Austria
8.8 9.3 11.5 11.3 7.8 9.2 8.5 6.7 7 9.1 9.5 5.9 9.6 -- -- -- -- -- --
87 Austria
Wiener Neudorf, Austria
8.8 10.8 11.5 11.4 8.1 7.9 8.1 5.4 5.9 8.5 7.9 6.1 13.6 10.1 11.6 11 11.5 14 12.4
90 Austria
St Pölten, Austria
8.8 11.7 12.3 10.8 9.2 9.3 8.3 5.7 6.1 7.6 9.1 6.4 11.6 -- -- -- -- -- --
91 Austria
Bludenz, Austria
8.8 10.9 11.3 10.5 6.4 8.4 11.7 8.3 7.9 9.1 8.9 6 6.7 14.7 14.8 -- -- -- --
92 Austria
Mödling, Austria
8.7 11.3 12.1 11.5 8.9 8.9 8.1 5.6 5.9 8.1 7.9 5.8 13 10.2 10.7 -- -- -- --
93 Austria
Haselbach, Austria
8.6 14.6 13.4 12 8.7 9.5 9.4 6.1 6.4 5.4 6.5 4.3 7.3 10.8 11.1 10.7 12.3 13.2 13.1
96 Austria
Salzburg, Austria
8.3 9.6 12.1 10.9 7 8.4 9.8 7.1 7.1 8.1 8.6 5.3 7.3 9.3 9.7 9.8 -- -- --
97 Austria
Glinzendorf, Austria
8.2 8.1 9.1 8.8 6.7 6.5 8.7 6.4 7.3 9.6 8.3 6.4 13 9.3 10.9 10.6 11.2 14.3 13.8

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