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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 ...
Central and South Asia contain the top four most polluted countries in the world—Bangladesh, Pakistan, India, and Tajikistan—and 31% of the region’s cities reported PM2.5 levels more than 10 ...
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.
Bangladesh, Pakistan and India had the most polluted air, with levels of particle pollution at least 10 times what the World Health Organization suggests, the company said.
This list contains the top 500 cities by PM2.5 annual mean concentration measurement as documented by the World Health Organization covering the period from 2010 to 2022. 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.
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.
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 ...
Marilao and Meycauayan together deemed among the world's 30 most polluted places in the developing world in a 2007 study. [58] Per the Blacksmith Institute: “Industrial waste is haphazardly dumped into the Meycauayan, Marilao and Obando River system” [58] Musi River: Telangana, India: Ranked as the 22nd most polluted river in the world. [59]