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  2. Air pollution in India - Wikipedia

    en.wikipedia.org/wiki/Air_pollution_in_India

    Air Quality Index (AQI) is a number used to communicate the level of pollution in the air and it essentially tells you the level of pollution in the air in a given city on a given day. The AQI of Delhi was placed under the "severe-plus category" when it touched 574, by the System of Air Quality and Weather Forecasting And Research. [49]

  3. 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.

  4. NowCast (air quality index) - Wikipedia

    en.wikipedia.org/wiki/NowCast_(air_quality_index)

    PM 2.5 AQI of US monitors, calculated utilizing NowCast, courtesy US EPA PM2.5 AQI map, calculated utilizing NowCast, courtesy US EPA. The PM (particulate matter) NowCast is a weighted average of hourly air monitoring data used by the United States Environmental Protection Agency (USEPA) for real-time reporting of the Air Quality Index (AQI) for PM (PM 10 - particles less than 10 micrometers ...

  5. 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 ...

  6. List of cleanest cities in India - Wikipedia

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

    Source: Ministry of Urban Development [5] 2019-2020 The results of the fifth edition of the nationwide annual cleanliness survey, ' Swachh Survekshan 2020 ,' are out and Madhya Pradesh's Indore has yet again made it as India's cleanest city.

  7. 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.

  8. Floods in Lucknow - Wikipedia

    en.wikipedia.org/wiki/Floods_in_Lucknow

    It also caused extensive damage to property, crops, and infrastructure. The state government declared Lucknow one of the 11 flood-affected districts and deployed army units and helicopters for rescue and relief operations. The heavy rainfall raised the water level of the Gomti River above the danger mark of 8.5 metres (28 feet) in Lucknow.

  9. Chaudhary Charan Singh International Airport - Wikipedia

    en.wikipedia.org/wiki/Chaudhary_Charan_Singh...

    Chaudhary Charan Singh International Airport (IATA: LKO, ICAO: VILK) is an international airport serving Lucknow, the capital of the Indian state of Uttar Pradesh. [5] It is located in Amausi, 14 km (8.7 mi) from the city centre, and was earlier known as ''Amausi Airport''.