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  2. List of most-polluted cities by particulate matter concentration

    en.wikipedia.org/wiki/List_of_most-polluted...

    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). [1 ...

  3. 25 Most Polluted Cities in the World

    www.aol.com/news/25-most-polluted-cities-world...

    Pixabay/Public Domain. Air pollution is one of the worst forms of pollution and is the leading environmental risk to health. According to a report by the World Bank, air pollution results in costs ...

  4. About 2 in 5 Americans live in areas with unhealthy air. Here ...

    www.aol.com/news/2-5-americans-live-areas...

    Western cities top the list of most polluted. Globally, more than 6.5 million people die each year due to air pollution. Exposure to polluted air can inflame cells and increase the risk of chronic ...

  5. The 10 Cities With the World's Worst Air - AOL

    www.aol.com/news/2010-11-29-10-cities-with-world...

    The poor air quality is sickening the city's residents. Studies have found that 4.63% of children under 14 suffer from asthma, although prevalence in girls may be underreported due to cultural bias.

  6. List of countries by air pollution - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_air...

    Air pollution is among the biggest health problems of modern industrial society and is responsible for more than 10 percent of all deaths worldwide (nearly 4.5 million premature deaths in 2019), according to The Lancet. Air pollution can affect nearly every organ and system of the body, negatively affecting nature and humans alike.

  7. Air Quality Is Bad Pretty Much Everywhere, New World ... - AOL

    www.aol.com/air-quality-bad-pretty-much...

    Here are key regional takeaways from IQAir’s 2023 World Air Quality Report. Asia is the world’s most polluted region. All but one of the 100 cities with the most polluted air in the world are ...

  8. List of least-polluted cities by particulate matter ...

    en.wikipedia.org/wiki/List_of_least-polluted...

    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 ...

  9. New study ranks Columbus most polluted city in US. But is it ...

    www.aol.com/study-ranks-columbus-most-polluted...

    The region of Central and South Asia was home to the top ten most polluted cities in the world. Begusarai, India was the most polluted metropolitan area of 2023. India was home to the four most ...