World's most polluted countries 2020 (PM2.5)

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

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2020

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PM2.5 Legend
Unit: µg/m³
WHO target Good Moderate Unhealthy for sensitive groups Unhealthy Very unhealthy Hazardous
Rank Country/Region 2020 AVG 2019 AVG 2018 AVG Population
1 Bangladesh
Bangladesh
77.10 83.30 97.10 164,689,383
2 Pakistan
Pakistan
59.00 65.80 74.30 220,892,331
3 India
India
51.90 58.10 72.50 1,380,004,385
4 Mongolia
Mongolia
46.60 62.00 58.50 3,278,292
5 Afghanistan
Afghanistan
46.50 58.80 61.80 38,928,341
6 Oman
Oman
44.40 - - 5,106,622
7 Qatar
Qatar
44.30 - - 2,881,060
8 Kyrgyzstan
Kyrgyzstan
43.50 33.20 - 6,524,191
9 Indonesia
Indonesia
40.70 51.70 42.00 273,523,621
10 Bosnia Herzegovina
Bosnia Herzegovina
40.60 34.60 40.00 3,280,815
11 Bahrain
Bahrain
39.70 46.80 59.80 1,701,583
12 Nepal
Nepal
39.20 44.50 54.10 29,136,808
13 Mali
Mali
37.90 - - 20,250,834
14 China
China
34.70 39.10 41.20 1,439,323,774
15 Kuwait
Kuwait
34.00 38.30 56.00 4,270,563
16 Tajikistan
Tajikistan
30.90 - - 9,537,642
17 North Macedonia
North Macedonia
30.60 32.40 35.50 2,083,380
18 Uzbekistan
Uzbekistan
29.90 41.20 34.30 33,469,199
19 Myanmar
Myanmar
29.40 31.00 - 54,409,794
20 United Arab Emirates
United Arab Emirates
29.20 38.90 49.90 9,890,400
21 Vietnam
Vietnam
28.00 34.10 32.90 97,338,583
22 Bulgaria
Bulgaria
27.50 25.50 25.80 6,948,445
23 Iran
Iran
27.20 24.30 25.00 83,992,953
24 Ghana
Ghana
26.90 30.30 - 31,072,945
25 Montenegro
Montenegro
26.10 - - 628,062
26 Uganda
Uganda
26.10 29.10 40.80 45,741,000
27 Armenia
Armenia
24.90 25.50 - 2,963,234
28 Serbia
Serbia
24.30 23.30 23.90 8,737,370
29 Saudi Arabia
Saudi Arabia
23.30 22.10 - 34,813,867
30 Laos
Laos
22.40 23.10 - 7,275,556
30 Sri Lanka
Sri Lanka
22.40 25.20 32.00 21,413,250
32 Ivory Coast
Ivory Coast
21.90 - - 26,378,275
32 Kazakhstan
Kazakhstan
21.90 23.60 29.80 18,776,707
34 Thailand
Thailand
21.40 24.30 26.40 69,799,978
35 Croatia
Croatia
21.20 19.10 22.20 4,105,268
36 Cambodia
Cambodia
21.10 21.10 20.10 16,718,971
37 Georgia
Georgia
20.40 20.10 - 3,989,175
38 Algeria
Algeria
20.20 21.20 - 43,851,043
39 Madagascar
Madagascar
20.00 - - 27,691,019
40 Kosovo
Kosovo
20.00 23.50 30.40 1,831,000
41 South Korea
South Korea
19.50 24.80 24.00 51,269,183
42 Chile
Chile
19.30 22.60 24.90 19,116,209
43 Guatemala
Guatemala
19.20 20.20 - 17,915,567
43 Ukraine
Ukraine
19.20 16.60 14.00 43,733,759
45 Mexico
Mexico
18.90 20.00 20.30 128,932,753
46 Turkey
Turkey
18.70 20.60 21.90 84,339,067
47 Italy
Italy
18.50 17.10 14.90 60,461,828
48 Greece
Greece
18.40 22.50 - 10,423,056
49 South Africa
South Africa
18.00 21.60 - 59,308,690
50 Peru
Peru
17.90 23.30 28.00 32,971,845
51 Macao SAR
Macao SAR
17.80 23.50 21.20 649,342
52 Turkmenistan
Turkmenistan
17.00 - - 6,031,187
53 Poland
Poland
16.90 18.70 22.40 37,846,605
54 Israel
Israel
16.90 20.80 18.60 8,655,541
55 Albania
Albania
16.00 - - 2,877,800
56 Cyprus
Cyprus
15.80 19.70 17.60 1,207,361
57 Romania
Romania
15.80 18.30 18.60 19,237,682
58 Malaysia
Malaysia
15.60 19.40 - 32,365,998
59 Colombia
Colombia
15.60 14.60 13.90 50,882,884
60 Hong Kong SAR
Hong Kong SAR
15.40 20.30 20.20 7,496,988
61 Slovakia
Slovakia
15.30 16.10 18.50 5,459,643
62 Taiwan
Taiwan
15.00 17.20 18.50 23,816,775
63 Jordan
Jordan
14.90 18.30 - 10,203,140
64 Ethiopia
Ethiopia
14.70 20.10 27.10 114,963,583
65 Hungary
Hungary
14.30 14.60 16.80 9,660,350
66 Argentina
Argentina
14.20 14.60 - 45,195,777
67 Kenya
Kenya
14.20 - - 53,771,300
68 Brazil
Brazil
14.20 15.80 16.30 212,559,409
69 Angola
Angola
13.00 15.90 - 32,866,267
70 Philippines
Philippines
12.80 17.60 14.60 109,581,085
71 Czech Republic
Czech Republic
12.30 14.40 20.20 10,708,982
72 Malta
Malta
11.80 9.40 11.00 441,539
73 Singapore
Singapore
11.80 19.00 14.80 5,850,343
74 Lithuania
Lithuania
11.70 14.50 17.50 2,722,291
75 Latvia
Latvia
11.30 13.30 - 1,886,202
76 Senegal
Senegal
11.20 - - 16,743,930
77 France
France
11.10 12.30 13.20 65,273,512
78 Austria
Austria
10.90 12.20 15.00 9,006,400
79 Curacao
Curacao
10.50 - - 164,100
80 Spain
Spain
10.40 9.70 10.30 46,754,783
81 Germany
Germany
10.10 11.00 13.00 83,783,945
82 Japan
Japan
9.80 11.40 12.00 126,476,458
83 Netherlands
Netherlands
9.70 10.90 11.70 17,134,873
84 USA
USA
9.60 9.00 9.10 331,002,647
85 Denmark
Denmark
9.40 9.60 - 5,792,203
86 Russia
Russia
9.30 9.90 11.40 145,934,460
87 Portugal
Portugal
9.10 9.30 9.40 10,196,707
88 Luxembourg
Luxembourg
9.00 9.60 11.20 625,976
89 Switzerland
Switzerland
9.00 10.90 11.60 8,654,618
90 Belgium
Belgium
8.90 12.50 13.50 11,589,616
91 Ireland
Ireland
8.60 10.60 9.50 4,937,796
92 United Kingdom
United Kingdom
8.30 10.50 10.80 67,886,004
93 Costa Rica
Costa Rica
8.20 10.40 - 5,094,114
94 Ecuador
Ecuador
7.60 8.60 - 17,643,060
95 Australia
Australia
7.60 8.00 6.80 25,499,881
96 Andorra
Andorra
7.40 - - 77,265
97 Canada
Canada
7.30 7.70 7.90 37,742,157
98 Iceland
Iceland
7.20 5.50 5.00 341,250
99 New Zealand
New Zealand
7.00 7.50 7.70 4,822,233
100 Estonia
Estonia
5.90 6.20 7.20 1,326,539
101 Norway
Norway
5.70 6.90 7.60 5,421,242
102 Finland
Finland
5.00 5.60 6.60 5,540,718
103 Sweden
Sweden
5.00 6.60 7.40 10,099,270
104 U.S. Virgin Islands
U.S. Virgin Islands
3.70 3.50 - 104,423
105 New Caledonia
New Caledonia
3.70 - - 285,491
106 Puerto Rico
Puerto Rico
3.70 10.20 13.70 2,860,840

2020 World air quality report

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