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