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AIR POLLUTION

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DELHI TOPS THE LIST

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SUPREME COURT

  • In November, the Supreme Court had directed the Centre and the Delhi  government to prepare a plan to install ‘smog towers’ across the capital to deal  with air pollution.

WHAT IS SMOG TOWER?

  • It is a structure of concrete that has  multiple layers of filters.

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HOW ARE PARTICLES FORMED?

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SOURCES OF PM

  • These particles come in many sizes and shapes and can be made up of hundreds of different chemicals.
  • Some are emitted directly from a source, such as construction sites, unpaved roads, fields, smokestacks or
  • Most particles form in the atmosphere as a result of complex reactions of chemicals such as sulfur dioxide and  nitrogen oxides, which are pollutants emitted from power  plants, industries and automobiles.

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NOTE

  • The giant 20-ft-tall device has been installed at south
  • Delhi’s popular Lajpat Nagar Central Market.
  • The smog tower is 20-ft-tall. It has been erected on a four feet high platform on a covered drain near Veer  Savarkar Marg in Lajpat Nagar Central Market.The  total height from the road level is 24 ft. Last year, China  built the largest smog tower over 328 ft high at Xian  in Shaanxi.

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DELHI SMOG TOWER

  • The filters installed in the tower will use carbon nanofibres as a major component and will be fitted along its  The tower will focus on reducing particulate  matter load.
  • October November December 2019
  • The project is a collaboration between the Indian Institute of Technology (IIT) Bombay, IIT-Delhi and the University of  Minnesota, the latter having helped design a similar tower of  over 100 metres in China’s Xi’an city.The Central Pollution  Control Board (CPCB) will also be involved with the

SMOG TOWER

  • The equipment has been installed by the Traders Association Lajpat Nagar (TALN) with  the help of east Delhi MP Gautam Gambhir.
  • The facility was inaugurated by the cricketer- turned-politician Gautam Gambhir

HOW EFFECTIVE IS A SMOG TOWER,  REALLY?

  • According to a report in the state- controlled Global Times it cut air pollution  by approximately “15% in a 10-square  kilometer area over two years”.

 
 

 

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