世界で最も汚染された国と地域(過去のデータ2018-2021)

年間平均PM2.5濃度(μg/m³)に基づく最も汚染された国と地域のランキング

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2021

新規

世界の大気質レポート

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WHOのガイドライン内
1~2倍を超えています
2~3倍を超えています
3~5倍を超えています
5~7倍を超えています
7~10倍を超えています
10倍を超えています
順位上昇アイコン
国/地域 2021 2020 2019 2018 人口
1 Bangladesh
Bangladesh
76.9 77.1 83.3 97.1 164,689,383
2 Chad
Chad
75.9 - - - 16,425,859
3 Pakistan
Pakistan
66.8 59 65.8 74.3 220,892,331
4 Tajikistan
Tajikistan
59.4 30.9 - - 9,537,642
5 India
India
58.1 51.9 58.1 72.5 1,380,004,385
6 Oman
Oman
53.9 44.4 - - 5,106,622
7 Kyrgyzstan
Kyrgyzstan
50.8 43.5 33.2 - 6,524,191
8 Bahrain
Bahrain
49.8 39.7 46.8 59.8 1,701,583
9 Iraq
Iraq
49.7 - - - 40,222,503
10 Nepal
Nepal
46 39.2 44.5 54.1 29,136,808
11 Sudan
Sudan
44.1 - - - 43,849,269
12 Uzbekistan
Uzbekistan
42.8 29.9 41.2 34.3 33,469,199
13 Qatar
Qatar
38.2 44.3 - - 2,881,060
14 Afghanistan
Afghanistan
37.5 46.5 58.8 61.8 38,928,341
15 United Arab Emirates
United Arab Emirates
36 29.2 38.9 49.9 9,890,400
16 Montenegro
Montenegro
35.2 26.1 - - 628,062
17 Indonesia
Indonesia
34.3 40.7 51.7 42 273,523,621
18 Nigeria
Nigeria
34 - - - 206,139,587
19 Armenia
Armenia
33.9 24.9 25.5 - 2,963,234
20 Mongolia
Mongolia
33.1 46.6 62 58.5 3,278,292
21 Saudi Arabia
Saudi Arabia
32.7 23.3 22.1 - 34,813,867
22 China
China
32.6 34.7 39.1 41.2 1,439,323,774
23 Kazakhstan
Kazakhstan
31.1 21.9 23.6 29.8 18,776,707
24 Iran
Iran
30.3 27.2 24.3 25 83,992,953
25 Kuwait
Kuwait
29.7 34 38.3 56 4,270,563
26 Peru
Peru
29.6 17.9 23.3 28 32,971,845
27 Egypt
Egypt
29.1 - - - 102,334,403
28 Bosnia Herzegovina
Bosnia Herzegovina
27.8 40.6 34.6 40 3,280,815
29 Uganda
Uganda
27.6 26.1 29.1 40.8 45,741,000
30 Ghana
Ghana
25.9 26.9 30.3 - 31,072,945
31 Myanmar
Myanmar
25.9 29.4 31 - 54,409,794
32 Lebanon
Lebanon
25.7 - - - 6,825,442
33 Serbia
Serbia
25.5 24.3 23.3 23.9 8,737,370
34 North Macedonia
North Macedonia
25.4 30.6 32.4 35.5 2,083,380
35 Croatia
Croatia
25.4 21.2 19.1 22.2 4,105,268
36 Vietnam
Vietnam
24.7 28 34.1 32.9 97,338,583
37 Ethiopia
Ethiopia
23.9 14.7 20.1 27.1 114,963,583
38 Syria
Syria
23 - - - 17,500,657
39 South Africa
South Africa
22.7 18 21.6 - 59,308,690
40 Chile
Chile
21.7 19.3 22.6 24.9 19,116,209
41 Laos
Laos
21.5 22.4 23.1 - 7,275,556
42 Georgia
Georgia
21 20.4 20.1 - 3,989,175
43 Madagascar
Madagascar
21 20 - - 27,691,019
44 Turkmenistan
Turkmenistan
20.4 17 - - 6,031,187
45 Thailand
Thailand
20.2 21.4 24.3 26.4 69,799,978
46 Turkey
Turkey
20 18.7 20.6 21.9 84,339,067
47 Algeria
Algeria
20 20.2 21.2 - 43,851,043
48 Cambodia
Cambodia
19.8 21.1 21.1 20.1 16,718,971
49 Guatemala
Guatemala
19.5 19.2 20.2 - 17,915,567
50 Malaysia
Malaysia
19.4 15.6 19.4 - 32,365,998
51 Mexico
Mexico
19.3 18.9 20 20.3 128,932,753
52 South Korea
South Korea
19.1 19.5 24.8 24 51,269,183
53 Poland
Poland
19.1 16.9 18.7 22.4 37,846,605
54 Greece
Greece
19 18.4 22.5 - 10,423,056
55 Israel
Israel
18.7 16.9 20.8 18.6 8,655,541
56 Ukraine
Ukraine
18.5 19.2 16.6 14 43,733,759
57 Azerbaijan
Azerbaijan
17.6 - - - 10,139,175
58 Sri Lanka
Sri Lanka
17.4 22.4 25.2 32 21,413,250
59 Macao SAR
Macao SAR
17 17.8 23.5 21.2 649,342
60 Bulgaria
Bulgaria
16.3 27.5 25.5 25.8 6,948,445
61 Taiwan
Taiwan
16.2 15 17.2 18.5 23,816,775
62 Slovakia
Slovakia
16 15.3 16.1 18.5 5,459,643
63 Hong Kong SAR
Hong Kong SAR
15.9 15.4 20.3 20.2 7,496,988
64 Philippines
Philippines
15.6 12.8 17.6 14.6 109,581,085
65 Hungary
Hungary
15.5 14.3 14.6 16.8 9,660,350
66 Romania
Romania
15.3 15.8 18.3 18.6 19,237,682
67 Italy
Italy
15.2 18.5 17.1 14.9 60,461,828
68 Cyprus
Cyprus
14.8 15.8 19.7 17.6 1,207,361
69 Kosovo
Kosovo
14.7 20 23.5 30.4 1,831,000
70 Kenya
Kenya
14.3 14.2 - - 53,771,300
71 Uruguay
Uruguay
14.2 - - - 3,473,727
72 Colombia
Colombia
14.1 15.6 14.6 13.9 50,882,884
73 Czech Republic
Czech Republic
13.9 12.3 14.4 20.2 10,708,982
74 Singapore
Singapore
13.8 11.8 19 14.8 5,850,343
75 Brazil
Brazil
13.6 14.2 15.8 16.3 212,559,409
76 Malta
Malta
13.5 11.8 9.4 11 441,539
77 Slovenia
Slovenia
13.3 - - - 2,078,931
78 Lithuania
Lithuania
13.2 11.7 14.5 17.5 2,722,291
79 Albania
Albania
12.5 16 - - 2,877,800
80 Russia
Russia
12.3 9.3 9.9 11.4 145,934,460
81 Honduras
Honduras
11.8 - - - 9,904,608
82 Belgium
Belgium
11.5 8.9 12.5 13.5 11,589,616
83 Austria
Austria
11.4 10.9 12.2 15 9,006,400
84 France
France
11.4 11.1 12.3 13.2 65,273,512
85 Netherlands
Netherlands
11.3 9.7 10.9 11.7 17,134,873
86 Angola
Angola
11 13 15.9 - 32,866,267
87 Switzerland
Switzerland
10.8 9 10.9 11.6 8,654,618
88 Spain
Spain
10.7 10.4 9.7 10.3 46,754,783
89 Germany
Germany
10.6 10.1 11 13 83,783,945
90 USA
USA
10.3 9.6 9 9.1 331,002,647
91 Denmark
Denmark
9.6 9.4 9.6 - 5,792,203
92 Japan
Japan
9.1 9.8 11.4 12 126,476,458
93 Luxembourg
Luxembourg
9 9 9.6 11.2 625,976
94 United Kingdom
United Kingdom
8.8 8.3 10.5 10.8 67,886,004
95 Canada
Canada
8.5 7.3 7.7 7.9 37,742,157
96 Ecuador
Ecuador
8.4 7.6 8.6 - 17,643,060
97 Argentina
Argentina
8.2 14.2 14.6 - 45,195,777
98 Ireland
Ireland
8 8.6 10.6 9.5 4,937,796
99 Costa Rica
Costa Rica
7.8 8.2 10.4 - 5,094,114
100 Norway
Norway
7.5 5.7 6.9 7.6 5,421,242
101 Andorra
Andorra
7.3 7.4 - - 77,265
102 Liechtenstein
Liechtenstein
7.2 - - - 38,137
103 Trinidad and Tobago
Trinidad and Tobago
7.1 - - - 1,399,491
104 Portugal
Portugal
7.1 9.1 9.3 9.4 10,196,707
105 New Zealand
New Zealand
6.8 7 7.5 7.7 4,822,233
106 Sweden
Sweden
6.6 5 6.6 7.4 10,099,270
107 Iceland
Iceland
6.1 7.2 5.5 5 341,250
108 Estonia
Estonia
5.9 5.9 6.2 7.2 1,326,539
109 Australia
Australia
5.7 7.6 8 6.8 25,499,881
110 Bahamas
Bahamas
5.5 - - - 393,248
111 Grenada
Grenada
5.5 - - - 112,519
112 Finland
Finland
5.5 5 5.6 6.6 5,540,718
113 Bonaire, Saint Eustatius and Saba
Bonaire, Saint Eustatius and Saba
5.1 - - - 26,221
114 Cape Verde
Cape Verde
5.1 - - - 555,988
115 Puerto Rico
Puerto Rico
4.8 3.7 10.2 13.7 2,860,840
116 U.S. Virgin Islands
U.S. Virgin Islands
4.5 3.7 3.5 - 104,423
117 New Caledonia
New Caledonia
3.8 3.7 - - 285,491

2021年の世界の大気質レポート

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