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

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

    This list contains the top 500 cities by PM2.5 annual mean concentration measurement as documented by the World Health Organization covering the period from 2010 to 2022. 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.

  3. Air quality index - Wikipedia

    en.wikipedia.org/wiki/Air_quality_index

    The most commonly used air quality index in the UK is the Daily Air Quality Index recommended by the Committee on the Medical Effects of Air Pollutants (COMEAP). [39] This index has ten points, which are further grouped into four bands: low, moderate, high and very high. Each of the bands comes with advice for at-risk groups and the general ...

  4. 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.

  5. Air Pollution Index - Wikipedia

    en.wikipedia.org/wiki/Air_Pollution_Index

    Thus an AQI of 100 does not mean twice the pollution of AQI at 50, nor does it mean twice as harmful. While an AQI of 50 from day 1 to 182 and AQI of 100 from day 183 to 365 does provide an annual average of 75, it does not mean the pollution is acceptable even if the benchmark of 100 is deemed safe. This is because the benchmark is a 24-hour ...

  6. Detroit and DC suffer worst air quality in world while at ...

    www.aol.com/air-quality-latest-biden-urged...

    People living in the Midwest and Northeast were warned of a worsening air quality index throughout the week due to smoke from the Canadian wildfires

  7. Delhi becomes world’s most polluted city as AQI levels reach ...

    www.aol.com/delhi-becomes-world-most-polluted...

    Delhi overtook Pakistan’s Lahore as the world’s most polluted city in Swiss group IQAir’s live rankings, with an air quality index (AQI) score of more than 1,000, which is considered ...

  8. Air pollution in Lahore - Wikipedia

    en.wikipedia.org/wiki/Air_pollution_in_Lahore

    5 special squads have been formed to fight smog, Metropolitan Corporation Lahore, Water and Sanitation Agency (Wasa), police, district administration and Lahore Electric Supply Company (Lesco) [11] [12] Lahore jumped more than 10 places to become the city with the worst air in the world in 2021, according to an annual global survey by a Swiss ...

  9. Air pollution in Delhi - Wikipedia

    en.wikipedia.org/wiki/Air_pollution_in_Delhi

    On November 18, 2024, Delhi recorded its worst air quality of the season, with a 24-hour AQI reading of 491, classified as "severe plus." This level, as reported by India's pollution control authority, indicates hazardous conditions with significant health impacts, particularly for vulnerable populations.