When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Air pollution in Delhi - Wikipedia

    en.wikipedia.org/wiki/Air_pollution_in_Delhi

    The air quality index (AQI) in Delhi generally falls within the Satisfactory (51–100) and Moderate (101–200) ranges between March and September, and then drastically deteriorates to Poor (201–300), Severe (301–400), or Hazardous (401–500+) levels between October and February due to various factors including the burning of effigies ...

  3. Climate of Delhi - Wikipedia

    en.wikipedia.org/wiki/Climate_of_Delhi

    Average Barometric Pressure & Wind Speed of Delhi Month January February March April May June July August September October November December Year Average Atmospheric pressure milibars (inHg) [63] 1,017.0 millibars (30.03 inHg) 1,014.5 millibars (29.96 inHg) 1,010.6 millibars (29.84 inHg) 1,005.4 millibars (29.69 inHg)

  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. Delhi air turns ‘very poor’ ahead of Diwali as residents ...

    www.aol.com/news/delhi-air-turns-very-poor...

    Indian capital’s 35 million residents brace to survive another season of toxic air

  6. Air quality index - Wikipedia

    en.wikipedia.org/wiki/Air_quality_index

    An air quality index (AQI) is an indicator developed by government agencies [1] to communicate to the public how polluted the air currently is or how polluted it is forecast to become. [ 2 ] [ 3 ] As air pollution levels rise, so does the AQI, along with the associated public health risk.

  7. 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.

  8. Environmental issues in Delhi - Wikipedia

    en.wikipedia.org/wiki/Environmental_issues_in_Delhi

    Environmental problems in Delhi, India, are a threat to the well-being of the city's and area's inhabitants as well as the flora and fauna. Delhi, the ninth-most populated metropolis in the world (second largest if the entire NCR includes especially Faridabad and Gurugram– Haryana, is one of the most heavily polluted cities in India, [1] having for instance one of the country's highest ...

  9. 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]