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Geography Optional 300+ Score Pack · Model answer

What is pollution dome ? Discuss its formation and impacts.

  • UPSC 2022
  • Climatology

A pollution dome (also called a dust dome) is a dome-shaped mass of polluted air — dust, smoke, soot, sulphur and nitrogen oxides and other aerosols — that collects over a city in calm, stable weather, held there by the city's own heat-island circulation and capped by a temperature inversion.

You are reading the opening of the model answer. The full answer is part of the Geography Optional 300+ Score Pack.

What the full answer covers

  • Formation: From Heat Island to Dome
  • 1. The Urban Heat Island
  • 2. The Urban Circulation Cell
  • 3. Dome versus Plume
  • Impacts of the Pollution Dome
  • On Radiation and Temperature
  • …and 4 more sections, with a conclusion

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