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

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

    The Air Pollution Index, which rates the likelihood of people getting ill from breathing a city's air, has recently reached 500, the highest possible level, for multiple parts of Hong Kong.

  4. 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.

  5. Harvard Six Cities study - Wikipedia

    en.wikipedia.org/wiki/Harvard_Six_Cities_study

    The study found that people living in the most polluted city (Steubenville) were 26 percent more likely to die than those in the least polluted city (Portage), [7] [11] suggesting an association between particulate pollution and higher death rates in urban areas: "Although the effects of other, unmeasured risk factors cannot be excluded with ...

  6. Oklahoma City ranked as one of the worst cities in the US for ...

    www.aol.com/oklahoma-city-ranked-one-worst...

    The Oklahoma City metro area has been ranked as one of the worst cities in the country for air pollution, reports the American Lung Association.

  7. 30 Cities With Best Air Quality in the U.S. - AOL

    www.aol.com/news/30-cities-best-air-quality...

    In this article we take a look at the 30 cities with the best air quality in the U.S. Click to skip ahead and jump to the 10 Cities With Best Air Quality in the U.S. Great quality of life depends ...

  8. 2025 Bangkok smog - Wikipedia

    en.wikipedia.org/wiki/2025_Bangkok_smog

    Air pollution levels in Bangkok have increased since 2019, following trends of increasing pollution in Northern Thailand. [4] Approximately 60% of the city's air pollution can be traced to transportation, with industrial emissions as the second largest contributor. [5] Agricultural emissions in nearby provinces is likewise a contributor. [6] [5]

  9. The 15 Most Dangerous Beaches in the US - AOL

    www.aol.com/15-most-dangerous-beaches-us...

    Capistrano Beach’s safety is compromised by air pollution — tying with three other nearby Los Angeles-area beaches as having the highest air pollution levels. Wikimedia Commons 10.