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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 countries by air pollution - Wikipedia

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

    Air pollution can affect nearly every organ and system of the body, negatively affecting nature and humans alike. 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 ...

  4. Air quality index - Wikipedia

    en.wikipedia.org/wiki/Air_quality_index

    An air quality index ... [21] is an air quality index used in Europe since 2006 ... The CAQI is defined as the sub-index that represents the worst quality among those ...

  5. Air quality – live: New York air ‘worst in the world’ as ...

    www.aol.com/air-quality-live-york-air-083741799.html

    Worsening air quality has prompted health alerts in New York and Quebec with officials warning people about the impact of fine particles known as PM2.5, which can lead to respiratory illnesses.

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

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

    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.

  7. Almost 400,000 deaths in Europe in 2021 attributable to ... - AOL

    www.aol.com/news/almost-400-000-deaths-europe...

    Almost 400,000 deaths in Europe in 2021 were related to three main air pollutants and some could have been avoided if pollutants had been reduced to World Health Organisation-recommended levels ...

  8. Environmental issues in the European Union - Wikipedia

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

    Since the late 1970s, the European Union's (EU) policy has been to develop and drive appropriate measures to improve air quality throughout the EU. The control of emissions from mobile sources, improving fuel quality and promoting and integrating environmental protection requirements into the transport and energy sector are part of these aims.

  9. List of least-polluted cities by particulate matter concentration

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

    [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. Click on the arrows next to the table's headers to have the most polluted cities ranked first.