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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.
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 ...
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 ...
All told, the city is considered the dirtiest in the U.S. Ron and Patty Thomas/istockphoto Cleanliness is a community effort in Indianapolis — the city holds the No. 1 spot for refuse and ...
Below is a list of 526 cities sorted by their annual mean concentration of PM2.5 (μg/m 3) in 2022. [1] [2] By default the least polluted cities which have fewest particulates in the air come first. Click on the arrows next to the table's headers to have the most polluted cities ranked first. Please note that constraints exist in this type of ...
LawnStarter ranked the dirtiest cities in the U.S. after completing a study of more than 300 cities based on air pollution, water quality, waste management and resident dissatisfaction levels.
Air Pollution in Mexico City A NASA satellite image of smog in the Valley of Mexico in 1985. Air Pollution in Mexico City has been of concern to the city's population and health officials for decades. In the 20th century, Mexico City's population rapidly increased as industrialization brought thousands of migrants from all over the world. [1]
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