Consider the following pollutants:

  1. Carbon monoxide
  2. Radon
  3. Lead

Which of the above are indoor pollutants?

Answer: [D] 1, 2 & 3

Environmental tobacco smoke is one source of CO. Lead is generally used in construction of buildings. Radon gas can enter a home from the soil under the house by process of diffusion through concrete floors and walls.

This question is a part of GKToday's Integrated IAS General Studies Module