Air Quality Is In Severe Category In Delhi

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08 November 2021 Current Affairs:According to data from the Central Pollution Control Board, Delhi’s air quality dropped to the “severe” level on 5 November.

♦ On November 5 at 6 a.m., the Air Quality Index (AQI) in Delhi was 444. It had worsened to 451 by 8 a.m.
♦ People who are healthy are affected by extreme air pollution. It also has major consequences for persons who already have ailments.
♦ From November 7, the air quality is expected to improve.

National Air Quality Index
♦ In 2014, the National Air Quality Index was created with the slogan “One Number – One Color – One Description.”
♦ It was created to allow the general public to assess local air quality.

Eight Pollutants Measured In AQI:
♦ Particulate Matter (PM10)
♦ Particulate Matter (PM2.5)
♦ Sulphur Dioxide (SO2)
♦ Nitrogen Dioxide (NO2)
♦ Ozone (O3)
♦ Carbon Monoxide (CO)
♦ Lead (Pb) and Ammonia (NH3).

Air Quality Index:
♦ Severe, Very Poor, Poor, Moderately Polluted, Satisfactory, and Good are the six air quality classifications defined by the AQI.
♦ Between 0 and 50, the air quality index (AQI) is regarded as good, 51 to 100 satisfactory, 101 to 200 moderate, 201 to 300 bad, 301 to 400 very poor, and 401 to 500 severe.
♦ The AQI was created by the Central Pollution Control Board (CPCB) in collaboration with IIT-Kanpur and an expert group of medical and air-quality experts.
♦ The CPCB is a statutory body that reports to the Ministry of the Environment, Forests, and Climate Change. 
♦ The Water (Prevention and Control of Pollution) Act was established in 1974.

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