Question

Among the following, which one causes more indoor chemical pollution?

• A. Burning cooking gas
• B. Burning mosquito coil
• C. Room spray
• D. Burning coal

Answer 1

Answer: (D)

Among the given four options, both burning of coal and burning of mosquito coil will cause chemical pollution, but comparatively, the burning of coal will cause more pollution.

The coal leads to release of a wide array of air pollutants $({CO}_x{SO}_x{NO}_{x}etc.).$ Among these, CO is very dangerous, as it interferes with the breathing process. People are generally advised not to sleep with coal burning in a closed room.

So, the correct answer is option A.