To tackle pollution, smog tower to come up in Delhi
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News:Recently,the Supreme Court has directed the Centre and the Delhi government to draw up a comprehensive plan to install ‘smog towers’ across Delhi to deal with air pollution.

Facts:

About Smog Towers:

  • Smog towers are structures designed to work as large-scale air purifiers.
  • They are usually fitted with multiple layers of air filters, which clean the air of pollutants as it passes through them.
  • China has the world’s largest smog tower and has reduced the particulate matter pollution by 19% in an area of around 6 sq km in the tower’s vicinity.

Smog Tower in Delhi:

  • The smog tower project in Delhi will be headed by the Indian Institute of Technology(IIT) Bombay in collaboration with IIT-Delhi and the University of Minnesota. 
  • The smog tower is expected to reduce particulate matter by 50% in the area.
  • The smog tower filters being installed would use carbon nanofibres as a major component.However,the proposed smog tower is focused only on reducing particulate matter load at present.

Additional information:

About Smog:

  • Smog is derived from two words i.e smoke and fog which is also described as the type of fog having smoke or soot particles in it or a mixture of various gases with dust and water vapour and makes breathing difficult. 
  • It is a yellowish or blackish fog mainly formed by a mixture of air pollutants like nitrogen oxides, sulphur oxides and some other organic compounds that combine with sunlight to form ozone.
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