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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 10 micrograms per cubic meter, although there are also various national guideline values, which ...
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 other major anthropogenic greenhouse gases [n 3] [10]: 147 [11]) are not included in the following list, nor are humans emissions of water vapor (H 2 O), the most important greenhouse gases, as they are negligible compared to naturally occurring quantities.
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 ...
In this article, we will be taking a look at the 25 most polluted countries in the world. To skip our detailed analysis, you can go directly to see 5 Most Polluted Countries in the World.
Indonesia was the most polluted country in the region, with a 20% increase compared to 2022. Indonesia, Vietnam and Thailand all had cities that exceeded WHO PM2.5 guidelines by more than 10 times ...
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).
The most populous city of Haryana is also one of the most polluted cities in the world, even though it has improved, having been recorded as the second most polluted city in the world in 2018 by ...