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Home Environment

India’s First Smog Tower inaugurated in Delhi

August 25, 2021
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India’s First Smog Tower inaugurated in Delhi
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In news– The Chief Minister of Delhi inaugurated the “country’s first smog tower” at Connaught Place in Delhi.

About the smog tower-

    • It is an experimental set up worth Rs 20 crore to purify air in a 1-km radius around the structure, at a rate of around 1,000 cubic metres of air per second.
    • It is located behind the Shivaji Stadium Metro station in Connaught Place, and was raised at a height of 24.2 metres.
    • A total of 40 fans have been installed at the bottom of the tower, air will be sucked in from the top, filtered and released through the fans at the bottom. 
    • The tower comprises 5,000 electrostatic air filters that can filter out microparticles, including those that constitute smoke, household dust and pollen, according to the project description. 
    • A Supervisory Control and Data Acquisition (SCADA) system has been installed in the tower to collect data and monitor its functioning.
    • Delhi Pollution Control Committee (DPCC) is the nodal agency for the tower.
  • National Buildings Construction Corporation (NBCC) is the project management consultancy and the executing agency was Tata Projects Limited.
  • The two-year pilot study will be carried out by IIT Delhi and IIT Bombay, technical advisors for the project. 
  • The institutions will monitor the impact of the tower on PM2.5 and the functioning of the tower under different weather conditions.

A similar tower is being set up at Anand Vihar, work on which is nearly complete.

What is smog?

    • Smog is air pollution that reduces visibility.
    • The term “smog” was first used in the early 1900s to describe a mix of smoke and fog. 
    • The smoke usually came from burning coal. 
  • Smog was common in industrial areas, and remains a familiar sight in cities today.
  • Today, most of the smog we see is photochemical smog. 
  • Photochemical smog is produced when sunlight reacts with nitrogen oxides and at least one volatile organic compound (VOC) in the atmosphere. 
  • Nitrogen oxides come from car exhaust, coal power plants, and factory emissions. 
  • VOCs are released from gasoline, paints, and many cleaning solvents. 
  • When sunlight hits these chemicals, they form airborne particles and ground-level ozone or smog.
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Source: The Indian Express
Tags: News PaperPrelims

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