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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).
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.
Called "one of the most polluted waterways in the country". [ 200 ] From 2018 to 2024, more than 100,000,000,000 US gallons (380,000,000 kL) of wastewater have flowed from Mexico into the United States via the Tijuana River according to the International Boundary and Water Commission, [ 201 ] including toxins, metals, solvents, pathogens, and ...
Here are the 10 dirtiest cities and 10 cleanest cities in the country that made it onto Lawnstarter's list — with an overall ranking averaged from four factors (pollution, living conditions ...
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.
The No. 1 state with the worst air quality of any state in the United States may not be what you would've guessed.
Their main argument is illustrated by CO 2 per capita emissions in 2023, China's levels (9.24) are almost two thirds those of the United States (13.83) and less than a sixth of those of Palau (62.59 – the country with the highest emissions of CO 2 per capita).
The graphic above offers a sense of how much each country relies on such fuels for power: The darker the box, the dirtier the grid. China exemplifies this dilemma.