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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. Environment of Australia - Wikipedia

    en.wikipedia.org/wiki/Environment_of_Australia

    Australia is located in the Southern Hemisphere. Relief map showing major rivers of Australia Climate of Australia. The Australian environment ranges from virtually pristine Antarctic territory and rainforests to degraded industrial areas of major cities.

  5. Environmental issues in Australia - Wikipedia

    en.wikipedia.org/wiki/Environmental_issues_in...

    Contamination from mining operations by toxic materials including asbestos, is a major environmental problem in Australia. Stream pollution near mining operations in the Mount Lofty Ranges, South Australia. Australia is affected by significant contamination and pollution including soil and goundwater contamination as well as water and air ...

  6. Air quality index - Wikipedia

    en.wikipedia.org/wiki/Air_quality_index

    This index pays particular attention to people who are sensitive to air pollution. It provides them with advice on how to protect their health during air quality levels associated with low, moderate, high and very high health risks. The AQHI provides a number from 1 to 10+ to indicate the level of health risk associated with local air quality ...

  7. Air pollution - Wikipedia

    en.wikipedia.org/wiki/Air_pollution

    Air pollution is usually concentrated in densely populated metropolitan areas, especially in developing countries where cities are experiencing rapid growth and environmental regulations are relatively lax or nonexistent. Urbanization leads to a rapid rise in premature mortality due to air pollution in fast-growing tropical cities. [272]

  8. 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.

  9. Odour pollution in Australia - Wikipedia

    en.wikipedia.org/wiki/Odour_pollution_in_Australia

    Odour is a form of pollution recognised in Victorian Law in the Environment Protection Act 2017, therefore, the risk of harm by being in contact with it should me minimised and businesses need to make sure that their activities don't impact local residents. Businesses may have to apply for a licence or permit to be able to carry out their ...