Exposure to air pollution from human sources by country
Annual population-weighted average concentration of fine particulate matter (PM2.5) in the air, measured in micrograms per cubic meter (µg/m³). Fine particulate matter (PM2.5) are particles with a diameter of 2.5 micrometers or less, which can pose significant health risks. This data excludes natural sources of...
Countries reporting
233
Highest
60.3 micrograms per cubic meter
Bangladesh
Lowest
0.57 micrograms per cubic meter
Northern Mariana Islands
Median
11.92 micrograms per cubic meter
Years covered
27
1998–2024
Data points
6,480
What the numbers show
Exposure to air pollution from human sources is currently reported for 233 countries. The highest value is 60.3 micrograms per cubic meter in Bangladesh; the lowest is 0.57 micrograms per cubic meter in Northern Mariana Islands.
The median across all reporting countries is 11.92 micrograms per cubic meter, and the mean is 14.22 micrograms per cubic meter.
The gap between the highest and lowest reporting country is a factor of about 106.
Over the past decade 127 countries rose and 105 fell. The largest increase was in Bolivia (up 66.9%), and the largest decrease in Palau (down 57.7%).
Exposure to air pollution from human sources: full country ranking
| # | Country | Latest | Year | 10-year change | Trend |
|---|---|---|---|---|---|
| 1 | Bangladesh | 60.3 micrograms per cubic meter | 2024 | down 5.5% | rising |
| 2 | Qatar | 56.44 micrograms per cubic meter | 2024 | up 19.2% | rising |
| 3 | Pakistan | 44.81 micrograms per cubic meter | 2024 | up 17.5% | rising |
| 4 | Democratic Republic of Congo | 41.26 micrograms per cubic meter | 2024 | up 10.3% | rising |
| 5 | India | 40.76 micrograms per cubic meter | 2024 | down 12.5% | rising |
| 6 | Bolivia | 40.62 micrograms per cubic meter | 2024 | up 66.9% | rising |
| 7 | Rwanda | 40.42 micrograms per cubic meter | 2024 | up 0.6% | rising |
| 8 | Cameroon | 39.95 micrograms per cubic meter | 2024 | up 5.8% | rising |
| 9 | Burundi | 39 micrograms per cubic meter | 2024 | down 0.1% | rising |
| 10 | Congo | 37.57 micrograms per cubic meter | 2024 | up 16.8% | rising |
| 11 | Saudi Arabia | 37.51 micrograms per cubic meter | 2024 | up 1.8% | rising |
| 12 | Nepal | 37.47 micrograms per cubic meter | 2024 | down 5.9% | rising |
| 13 | Uganda | 36.27 micrograms per cubic meter | 2024 | up 9.9% | rising |
| 14 | Kuwait | 35.89 micrograms per cubic meter | 2024 | down 1.3% | rising |
| 15 | United Arab Emirates | 34.75 micrograms per cubic meter | 2024 | up 14.2% | rising |
| 16 | Bahrain | 34.51 micrograms per cubic meter | 2024 | up 1.4% | rising |
| 17 | Iraq | 34.26 micrograms per cubic meter | 2024 | up 12.7% | rising |
| 18 | Equatorial Guinea | 32.97 micrograms per cubic meter | 2024 | up 20.0% | rising |
| 19 | Nigeria | 30.53 micrograms per cubic meter | 2024 | up 6.0% | flat |
| 20 | Afghanistan | 30.24 micrograms per cubic meter | 2024 | up 38.7% | rising |
| 21 | Central African Republic | 30.07 micrograms per cubic meter | 2024 | down 0.3% | flat |
| 22 | Myanmar | 29.65 micrograms per cubic meter | 2024 | down 1.1% | rising |
| 23 | El Salvador | 29.63 micrograms per cubic meter | 2024 | up 19.5% | rising |
| 24 | China | 29.57 micrograms per cubic meter | 2024 | down 39.2% | flat |
| 25 | Egypt | 29.47 micrograms per cubic meter | 2024 | up 11.2% | flat |
| 26 | Mongolia | 29.35 micrograms per cubic meter | 2024 | down 12.4% | rising |
| 27 | Honduras | 28.77 micrograms per cubic meter | 2024 | up 37.0% | rising |
| 28 | Iran | 28.74 micrograms per cubic meter | 2024 | up 12.5% | rising |
| 29 | Gabon | 28.49 micrograms per cubic meter | 2024 | up 26.7% | rising |
| 30 | Guatemala | 27.24 micrograms per cubic meter | 2024 | up 18.9% | flat |
| 31 | Armenia | 26.79 micrograms per cubic meter | 2024 | up 13.5% | rising |
| 32 | Laos | 26.73 micrograms per cubic meter | 2024 | down 4.7% | rising |
| 33 | Jordan | 25.96 micrograms per cubic meter | 2024 | up 27.4% | rising |
| 34 | Tajikistan | 25.95 micrograms per cubic meter | 2024 | up 25.5% | rising |
| 35 | Djibouti | 25.47 micrograms per cubic meter | 2024 | up 4.4% | rising |
| 36 | Bhutan | 25.18 micrograms per cubic meter | 2024 | down 17.0% | rising |
| 37 | Angola | 25.06 micrograms per cubic meter | 2024 | up 33.9% | rising |
| 38 | Peru | 24.69 micrograms per cubic meter | 2024 | up 16.6% | rising |
| 39 | Benin | 24.56 micrograms per cubic meter | 2024 | up 10.2% | flat |
| 40 | Vietnam | 24.55 micrograms per cubic meter | 2024 | down 7.6% | rising |
| 41 | Syria | 24.51 micrograms per cubic meter | 2024 | up 13.4% | rising |
| 42 | Zambia | 24.37 micrograms per cubic meter | 2024 | up 20.8% | rising |
| 43 | Uzbekistan | 24.34 micrograms per cubic meter | 2024 | up 16.9% | rising |
| 44 | Yemen | 24.32 micrograms per cubic meter | 2024 | down 1.9% | rising |
| 45 | Bosnia and Herzegovina | 23.23 micrograms per cubic meter | 2024 | down 3.5% | falling |
| 46 | Turkey | 22.98 micrograms per cubic meter | 2024 | up 5.0% | rising |
| 47 | Lesotho | 22.55 micrograms per cubic meter | 2024 | up 1.5% | rising |
| 48 | Tanzania | 22.37 micrograms per cubic meter | 2024 | up 11.5% | rising |
| 49 | Togo | 22.34 micrograms per cubic meter | 2024 | up 7.7% | falling |
| 50 | Thailand | 22.09 micrograms per cubic meter | 2024 | down 3.1% | rising |
| 51 | Oman | 21.72 micrograms per cubic meter | 2024 | up 11.2% | rising |
| 52 | South Africa | 21.6 micrograms per cubic meter | 2024 | up 5.7% | rising |
| 53 | South Sudan | 20.89 micrograms per cubic meter | 2024 | down 1.5% | rising |
| 54 | Paraguay | 20.65 micrograms per cubic meter | 2024 | up 55.7% | flat |
| 55 | Ghana | 20.57 micrograms per cubic meter | 2024 | up 15.5% | flat |
| 56 | Chad | 20.51 micrograms per cubic meter | 2024 | up 6.5% | flat |
| 57 | North Korea | 20.47 micrograms per cubic meter | 2024 | down 23.1% | flat |
| 58 | Kenya | 20.17 micrograms per cubic meter | 2024 | up 16.9% | rising |
| 59 | Chile | 20.1 micrograms per cubic meter | 2024 | up 5.7% | rising |
| 59 | Lebanon | 20.1 micrograms per cubic meter | 2024 | up 3.1% | rising |
| 61 | Malawi | 19.94 micrograms per cubic meter | 2024 | up 16.1% | rising |
| 62 | South Korea | 19.59 micrograms per cubic meter | 2024 | down 14.0% | flat |
| 63 | North Macedonia | 19.42 micrograms per cubic meter | 2024 | down 15.5% | falling |
| 64 | Bulgaria | 19.14 micrograms per cubic meter | 2024 | down 14.2% | falling |
| 65 | Turkmenistan | 19.03 micrograms per cubic meter | 2024 | up 24.2% | rising |
| 66 | Zimbabwe | 18.9 micrograms per cubic meter | 2024 | up 24.7% | rising |
| 67 | Philippines | 18.36 micrograms per cubic meter | 2024 | up 2.6% | rising |
| 68 | Georgia | 18.32 micrograms per cubic meter | 2024 | down 2.2% | rising |
| 69 | Ethiopia | 18.3 micrograms per cubic meter | 2024 | down 4.5% | rising |
| 70 | Eswatini | 18.26 micrograms per cubic meter | 2024 | up 7.9% | flat |
| 71 | Eritrea | 17.92 micrograms per cubic meter | 2024 | down 1.7% | rising |
| 72 | Palestine | 17.83 micrograms per cubic meter | 2024 | up 17.8% | rising |
| 73 | Indonesia | 17.67 micrograms per cubic meter | 2024 | down 15.0% | rising |
| 74 | Cambodia | 17.56 micrograms per cubic meter | 2024 | up 8.7% | rising |
| 75 | Mexico | 17.4 micrograms per cubic meter | 2024 | up 14.7% | falling |
| 76 | Nicaragua | 17.37 micrograms per cubic meter | 2024 | up 31.0% | rising |
| 77 | Sri Lanka | 17.33 micrograms per cubic meter | 2024 | down 11.4% | rising |
| 78 | Ecuador | 16.98 micrograms per cubic meter | 2024 | up 3.9% | rising |
| 79 | Sudan | 16.93 micrograms per cubic meter | 2024 | up 4.2% | rising |
| 80 | Israel | 16.66 micrograms per cubic meter | 2024 | up 13.7% | rising |
| 81 | Azerbaijan | 16.59 micrograms per cubic meter | 2024 | up 1.3% | falling |
| 82 | Costa Rica | 16.22 micrograms per cubic meter | 2024 | up 24.0% | rising |
| 83 | Serbia | 16.13 micrograms per cubic meter | 2024 | down 12.9% | falling |
| 84 | Burkina Faso | 15.97 micrograms per cubic meter | 2024 | down 9.7% | flat |
| 85 | Botswana | 15.93 micrograms per cubic meter | 2024 | up 30.7% | flat |
| 86 | Montenegro | 15.81 micrograms per cubic meter | 2024 | down 1.6% | falling |
| 87 | Jamaica | 15.35 micrograms per cubic meter | 2024 | up 1.9% | rising |
| 88 | Niger | 15.28 micrograms per cubic meter | 2024 | down 3.7% | flat |
| 89 | Guinea-Bissau | 15.23 micrograms per cubic meter | 2024 | up 1.7% | falling |
| 90 | Guinea | 15.2 micrograms per cubic meter | 2024 | down 11.4% | falling |
| 91 | Cote d'Ivoire | 15.11 micrograms per cubic meter | 2024 | up 12.3% | flat |
| 92 | Taiwan | 15.01 micrograms per cubic meter | 2024 | down 30.5% | falling |
| 93 | Gambia | 14.99 micrograms per cubic meter | 2024 | up 12.5% | rising |
| 94 | Kyrgyzstan | 14.84 micrograms per cubic meter | 2024 | up 3.4% | rising |
| 95 | Sierra Leone | 14.74 micrograms per cubic meter | 2024 | down 0.1% | falling |
| 96 | Mozambique | 14.54 micrograms per cubic meter | 2024 | up 20.2% | flat |
| 97 | Namibia | 14.53 micrograms per cubic meter | 2024 | up 28.2% | falling |
| 98 | Poland | 14.29 micrograms per cubic meter | 2024 | down 35.8% | falling |
| 99 | Cyprus | 14.1 micrograms per cubic meter | 2024 | up 2.0% | flat |
| 100 | Albania | 13.99 micrograms per cubic meter | 2024 | up 7.2% | falling |
| 101 | Malaysia | 13.92 micrograms per cubic meter | 2024 | down 26.7% | rising |
| 102 | Colombia | 13.88 micrograms per cubic meter | 2024 | down 7.1% | rising |
| 103 | Kazakhstan | 13.74 micrograms per cubic meter | 2024 | up 1.0% | flat |
| 104 | Brazil | 13.5 micrograms per cubic meter | 2024 | up 29.2% | rising |
| 105 | Italy | 13.35 micrograms per cubic meter | 2024 | up 3.2% | falling |
| 106 | Argentina | 13.26 micrograms per cubic meter | 2024 | up 6.6% | flat |
| 107 | Croatia | 13.25 micrograms per cubic meter | 2024 | down 11.4% | falling |
| 108 | Liberia | 13.05 micrograms per cubic meter | 2024 | up 7.9% | falling |
| 109 | Greece | 12.98 micrograms per cubic meter | 2024 | down 2.9% | falling |
| 110 | Senegal | 12.71 micrograms per cubic meter | 2024 | up 15.4% | rising |
| 111 | Romania | 12.66 micrograms per cubic meter | 2024 | down 18.5% | falling |
| 112 | Belize | 12.62 micrograms per cubic meter | 2024 | up 31.2% | falling |
| 113 | Sao Tome and Principe | 12.58 micrograms per cubic meter | 2024 | up 42.5% | falling |
| 114 | Mali | 12.31 micrograms per cubic meter | 2024 | down 11.8% | falling |
| 115 | Slovakia | 12.04 micrograms per cubic meter | 2024 | down 33.5% | falling |
| 116 | Venezuela | 11.93 micrograms per cubic meter | 2024 | up 10.9% | rising |
| 117 | Hungary | 11.92 micrograms per cubic meter | 2024 | down 32.3% | falling |
| 118 | Latvia | 11.85 micrograms per cubic meter | 2024 | down 30.5% | falling |
| 119 | Ukraine | 11.82 micrograms per cubic meter | 2024 | down 20.2% | falling |
| 120 | Tunisia | 11.61 micrograms per cubic meter | 2024 | up 40.6% | falling |
| 121 | Belarus | 11.58 micrograms per cubic meter | 2024 | down 27.8% | falling |
| 122 | Slovenia | 11.51 micrograms per cubic meter | 2024 | down 9.7% | falling |
| 123 | Cayman Islands | 11.33 micrograms per cubic meter | 2024 | up 3.0% | flat |
| 124 | San Marino | 11.27 micrograms per cubic meter | 2024 | up 6.3% | falling |
| 125 | Czechia | 11.22 micrograms per cubic meter | 2024 | down 36.5% | falling |
| 126 | Singapore | 11.12 micrograms per cubic meter | 2024 | down 24.4% | rising |
| 127 | Panama | 10.98 micrograms per cubic meter | 2024 | up 10.6% | rising |
| 127 | Russia | 10.98 micrograms per cubic meter | 2024 | up 1.2% | falling |
| 129 | Moldova | 10.9 micrograms per cubic meter | 2024 | down 24.9% | falling |
| 130 | Vatican | 10.88 micrograms per cubic meter | 2024 | down 5.6% | falling |
| 131 | Lithuania | 10.6 micrograms per cubic meter | 2024 | down 32.7% | falling |
| 132 | Haiti | 10.43 micrograms per cubic meter | 2024 | up 5.8% | rising |
| 134 | Japan | 10 micrograms per cubic meter | 2024 | down 20.4% | falling |
| 135 | Morocco | 9.91 micrograms per cubic meter | 2024 | up 11.3% | flat |
| 136 | Austria | 9.63 micrograms per cubic meter | 2024 | down 25.1% | falling |
| 137 | Papua New Guinea | 9.49 micrograms per cubic meter | 2024 | up 2.2% | rising |
| 138 | Uruguay | 9.47 micrograms per cubic meter | 2024 | down 5.3% | rising |
| 139 | East Timor | 9.39 micrograms per cubic meter | 2024 | down 11.6% | rising |
| 140 | Monaco | 9.23 micrograms per cubic meter | 2024 | down 10.2% | falling |
| 141 | Libya | 9.1 micrograms per cubic meter | 2024 | up 29.1% | falling |
| 142 | Madagascar | 9.06 micrograms per cubic meter | 2024 | unchanged | rising |
| 143 | Netherlands | 8.93 micrograms per cubic meter | 2024 | down 30.7% | falling |
| 144 | Dominican Republic | 8.71 micrograms per cubic meter | 2024 | up 16.0% | rising |
| 145 | Gibraltar | 8.7 micrograms per cubic meter | 2024 | up 16.3% | flat |
| 146 | Germany | 8.54 micrograms per cubic meter | 2024 | down 32.1% | falling |
| 147 | Belgium | 8.52 micrograms per cubic meter | 2024 | down 27.7% | falling |
| 148 | Brunei | 8.45 micrograms per cubic meter | 2024 | down 7.1% | flat |
| 149 | Somalia | 8.4 micrograms per cubic meter | 2024 | down 8.9% | flat |
| 150 | Guyana | 8.38 micrograms per cubic meter | 2024 | up 28.5% | rising |
| 151 | Switzerland | 8.31 micrograms per cubic meter | 2024 | down 19.0% | falling |
| 152 | Denmark | 8.24 micrograms per cubic meter | 2024 | down 20.5% | falling |
| 154 | Cuba | 8.06 micrograms per cubic meter | 2024 | up 8.9% | falling |
| 155 | France | 7.84 micrograms per cubic meter | 2024 | down 21.0% | falling |
| 156 | United Kingdom | 7.76 micrograms per cubic meter | 2024 | down 25.1% | falling |
| 158 | Spain | 7.63 micrograms per cubic meter | 2024 | up 2.7% | falling |
| 159 | Mauritania | 7.55 micrograms per cubic meter | 2024 | up 3.7% | flat |
| 160 | Portugal | 7.43 micrograms per cubic meter | 2024 | up 27.7% | falling |
| 161 | Maldives | 7.17 micrograms per cubic meter | 2024 | down 27.7% | falling |
| 162 | Andorra | 7.16 micrograms per cubic meter | 2024 | down 4.7% | falling |
| 163 | Comoros | 7.15 micrograms per cubic meter | 2024 | up 24.8% | rising |
| 165 | Algeria | 7.07 micrograms per cubic meter | 2024 | up 17.8% | flat |
| 165 | United States | 7.07 micrograms per cubic meter | 2024 | down 11.4% | falling |
| 167 | Jersey | 6.98 micrograms per cubic meter | 2024 | down 18.6% | falling |
| 168 | Suriname | 6.72 micrograms per cubic meter | 2024 | up 15.3% | rising |
| 169 | Canada | 6.71 micrograms per cubic meter | 2024 | down 5.0% | falling |
| 170 | Curacao | 6.69 micrograms per cubic meter | 2024 | up 48.0% | rising |
| 171 | Trinidad and Tobago | 6.29 micrograms per cubic meter | 2024 | up 48.0% | rising |
| 172 | Guernsey | 6.23 micrograms per cubic meter | 2024 | down 18.9% | falling |
| 173 | Aruba | 6.22 micrograms per cubic meter | 2024 | up 41.4% | rising |
| 174 | Estonia | 6.1 micrograms per cubic meter | 2024 | down 31.5% | falling |
| 175 | French Guiana | 5.92 micrograms per cubic meter | 2024 | up 21.1% | rising |
| 176 | Western Sahara | 5.82 micrograms per cubic meter | 2024 | up 10.9% | falling |
| 177 | Norway | 5.81 micrograms per cubic meter | 2024 | down 10.3% | falling |
| 178 | Mauritius | 5.69 micrograms per cubic meter | 2024 | down 4.8% | rising |
| 180 | Isle of Man | 5.5 micrograms per cubic meter | 2024 | down 13.5% | falling |
| 181 | Solomon Islands | 5.49 micrograms per cubic meter | 2024 | down 13.4% | rising |
| 182 | Sweden | 5.2 micrograms per cubic meter | 2024 | down 25.4% | falling |
| 183 | Bonaire Sint Eustatius and Saba | 5.14 micrograms per cubic meter | 2024 | up 33.9% | rising |
| 184 | Finland | 4.93 micrograms per cubic meter | 2024 | down 26.3% | falling |
| 185 | Cape Verde | 4.92 micrograms per cubic meter | 2024 | up 32.3% | falling |
| 186 | Turks and Caicos Islands | 4.55 micrograms per cubic meter | 2024 | up 37.9% | falling |
| 188 | Saint Pierre and Miquelon | 4.17 micrograms per cubic meter | 2024 | down 6.7% | flat |
| 189 | New Zealand | 3.97 micrograms per cubic meter | 2024 | up 7.0% | rising |
| 189 | Vanuatu | 3.97 micrograms per cubic meter | 2024 | down 20.1% | rising |
| 191 | Bahamas | 3.91 micrograms per cubic meter | 2024 | up 14.3% | falling |
| 192 | Australia | 3.89 micrograms per cubic meter | 2024 | down 11.6% | rising |
| 194 | Aland Islands | 3.85 micrograms per cubic meter | 2024 | down 37.6% | falling |
| 195 | Seychelles | 3.83 micrograms per cubic meter | 2024 | down 16.7% | rising |
| 196 | Puerto Rico | 3.73 micrograms per cubic meter | 2024 | up 31.8% | rising |
| 197 | Saint Lucia | 3.67 micrograms per cubic meter | 2024 | up 26.1% | flat |
| 198 | Dominica | 3.61 micrograms per cubic meter | 2024 | up 18.8% | rising |
| 199 | Barbados | 3.48 micrograms per cubic meter | 2024 | up 27.5% | flat |
| 200 | Grenada | 3.47 micrograms per cubic meter | 2024 | up 26.6% | flat |
| 200 | Saint Vincent and the Grenadines | 3.47 micrograms per cubic meter | 2024 | up 20.9% | flat |
| 202 | Montserrat | 3.32 micrograms per cubic meter | 2024 | up 8.1% | falling |
| 203 | Antigua and Barbuda | 3.14 micrograms per cubic meter | 2024 | up 11.3% | falling |
| 204 | Iceland | 3.03 micrograms per cubic meter | 2024 | up 7.8% | rising |
| 204 | Saint Kitts and Nevis | 3.03 micrograms per cubic meter | 2024 | up 2.0% | falling |
| 206 | United States Virgin Islands | 2.96 micrograms per cubic meter | 2024 | up 25.4% | flat |
| 207 | New Caledonia | 2.9 micrograms per cubic meter | 2024 | down 9.1% | rising |
| 208 | Sint Maarten (Dutch part) | 2.84 micrograms per cubic meter | 2024 | up 8.8% | falling |
| 209 | Falkland Islands | 2.81 micrograms per cubic meter | 2024 | up 7.3% | falling |
| 210 | Bermuda | 2.8 micrograms per cubic meter | 2024 | down 25.5% | falling |
| 211 | Saint Martin (French part) | 2.78 micrograms per cubic meter | 2024 | up 9.4% | falling |
| 212 | Saint Barthelemy | 2.76 micrograms per cubic meter | 2024 | up 6.2% | falling |
| 213 | Fiji | 2.7 micrograms per cubic meter | 2024 | up 2.7% | rising |
| 214 | British Virgin Islands | 2.67 micrograms per cubic meter | 2024 | up 24.2% | falling |
| 215 | Reunion | 2.66 micrograms per cubic meter | 2024 | down 12.8% | rising |
| 216 | Faroe Islands | 2.54 micrograms per cubic meter | 2024 | down 15.6% | falling |
| 217 | Anguilla | 2.47 micrograms per cubic meter | 2024 | up 9.8% | falling |
| 218 | Saint Helena | 2.46 micrograms per cubic meter | 2024 | up 19.4% | flat |
| 219 | Christmas Island | 2.08 micrograms per cubic meter | 2024 | down 50.8% | rising |
| 220 | United States Minor Outlying Islands | 1.95 micrograms per cubic meter | 2024 | down 55.8% | rising |
| 221 | Cocos Islands | 1.81 micrograms per cubic meter | 2024 | down 6.7% | rising |
| 222 | Norfolk Island | 1.71 micrograms per cubic meter | 2024 | up 3.6% | rising |
| 223 | Tuvalu | 1.7 micrograms per cubic meter | 2024 | down 22.0% | rising |
| 224 | Pitcairn | 1.64 micrograms per cubic meter | 2024 | down 1.2% | rising |
| 225 | Tonga | 1.52 micrograms per cubic meter | 2024 | up 8.6% | flat |
| 226 | Wallis and Futuna | 1.45 micrograms per cubic meter | 2024 | down 13.2% | rising |
| 227 | Palau | 1.4 micrograms per cubic meter | 2024 | down 57.7% | rising |
| 228 | Samoa | 1.37 micrograms per cubic meter | 2024 | down 13.3% | rising |
| 229 | Nauru | 1.28 micrograms per cubic meter | 2024 | down 47.5% | rising |
| 229 | French Polynesia | 1.28 micrograms per cubic meter | 2024 | down 4.5% | flat |
| 231 | American Samoa | 1.21 micrograms per cubic meter | 2024 | down 5.5% | rising |
| 232 | Cook Islands | 1.14 micrograms per cubic meter | 2024 | down 2.6% | rising |
| 233 | Tokelau | 1.1 micrograms per cubic meter | 2024 | down 23.1% | falling |
| 234 | Niue | 1.04 micrograms per cubic meter | 2024 | up 8.3% | rising |
| 235 | Kiribati | 1.03 micrograms per cubic meter | 2024 | down 36.8% | rising |
| 236 | Greenland | 0.83 micrograms per cubic meter | 2024 | down 35.2% | falling |
| 237 | Marshall Islands | 0.65 micrograms per cubic meter | 2024 | down 33.0% | rising |
| 238 | Guam | 0.63 micrograms per cubic meter | 2024 | down 53.0% | flat |
| 239 | Micronesia (country) | 0.62 micrograms per cubic meter | 2024 | down 51.6% | flat |
| 240 | Northern Mariana Islands | 0.57 micrograms per cubic meter | 2024 | down 49.1% | falling |
About this data
Annual population-weighted average concentration of fine particulate matter (PM2.5) in the air, measured in micrograms per cubic meter (µg/m³). Fine particulate matter (PM2.5) are particles with a diameter of 2.5 micrometers or less, which can pose significant health risks. This data excludes natural sources of PM2.5, such as dust and sea salt, to focus on human-caused pollution.