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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. 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 ...

  4. List of countries by air pollution - Wikipedia

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

    Air pollution is a particularly big problem in emerging and developing countries, where global environmental standards often cannot be met. The data in this list refers only to outdoor air quality and not indoor air quality, which caused an additional two million premature deaths in 2019. [1]

  5. 25 Most Polluted Cities in the World

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

    To rank the 25 cities with the most pollution, we relied on data provided by the World Air Quality Report 2021 by IQAir. As mentioned earlier, air pollution is the most damaging form of pollution ...

  6. Bangladesh, Pakistan and India bottom in air quality rankings ...

    www.aol.com/news/bangladesh-pakistan-india...

    Pakistan remained one of the world's three smoggiest countries in 2023, as Bangladesh and India replaced Chad and Iran, with particulate matter about 15 times the level recommended by the World ...

  7. Air Pollution Index - Wikipedia

    en.wikipedia.org/wiki/Air_Pollution_Index

    The air quality in Malaysia is reported as the API (Air Pollutant Index) or in Malay as IPU (Indeks Pencemaran Udara). Four of the index's pollutant components (i.e., carbon monoxide, ozone, nitrogen dioxide and sulfur dioxide) are reported in ppmv but PM 2.5 particulate matter is reported in μg/m 3.

  8. The US cities with the best quality of life, ranked - AOL

    www.aol.com/us-cities-best-quality-life...

    US News & World Report released a list of the cities with the best quality of life for 2024 to 2025. Cities with places for outdoor activities, such as beaches and mountains, ranked higher. Ann ...

  9. List of cleanest cities in India - Wikipedia

    en.wikipedia.org/wiki/List_of_cleanest_cities_in...

    According to the Central Pollution Control Board (CPCB) India, in 2015 it conducted a survey of the least polluted cities in India as well, ranked based on air quality. Among the least-polluted cities are Pathanamthitta, Mangalore, Wayanad, Hassan, and Palakkad. The table below shows the ranking of these cities as per the PM10 content in the air.