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The following list of countries by air pollution sorts the countries of the world according to their average measured concentration of particulate matter in micrograms per cubic meter (μg/m 3). The World Health Organization's recommended limit is 5 micrograms per cubic meter, although there are also various national guideline values, which are ...
Turkey and Poland are the two most polluted countries in Europe but they still are not included in the 25 most polluted countries in the world. Our ranking is based on Air Quality Index according ...
CO 2 emissions from the top 10 countries with the highest emissions accounted for almost two thirds of the global total. Since 2006, China has been emitting more CO 2 than any other country. [9] [10] [11] However, the main disadvantage of measuring total national emissions is that it does not take population size into account.
The January 2024 version of the WHO database contains results of ambient (outdoor) air pollution monitoring from almost 5,390 towns and cities in 63 countries. Air quality in the database is represented by the annual mean concentration of particulate matter ( PM10 and PM2.5, i.e. particles smaller than 10 or 2.5 micrometers, respectively).
Bosnia Herzegovina is still the most polluted country in the region, with an annual average PM2.5 level of 27.5 µg/m3, but even that’s down by 18% from 2022. Croatia showed the most improvement ...
Seven African countries were among the new locations included in the 2023 rankings, including Burkina Faso, the world’s fifth most polluted country, and Rwanda, in 15th.
This accounting method – which is sometimes referred to as ‘territorial’ emissions – is used when countries report their emissions, and set targets domestically and internationally. In addition to the commonly reported production-based emissions statisticians also calculate ‘consumption-based’ emissions.
The top five most polluted countries in 2023 were: Bangladesh (79.9 µg/m 3 ) more than 15 times higher than the WHO PM2.5 annual guideline. Pakistan (73.7 µg/m 3 ) more than 14 times higher.