Fighting a Megacity’s Pollution with Mega Panels

Sustainability Problem:

Air Pollution in major cities around the world has become and issue that affects the health of city dwellers.

Article Summary:

  • Plastic panels coated with titanium dioxide (TiO2) can be placed on building facades that react to sunlight.
  • This material breaks down nitrogen oxides and VOCs when it gets in contact with sunlight.
  • Byproduct of chemical reaction is a non toxic chemical (calcium nitrate), which will get washed away with rain


  • Government
  • Private entities
  • Public

Steps for deploying technology:

  1. Getting approval from city government
  2. Secure funding for the project
  3. Finding buildings with larger square footage and sunlight exposure






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