Ownclasses

Which of the following are most suitable indicators of SO2 pollution in the environment?

  • Lichens

  • Conifers

  • Algae

  • Fungi

Answer

A.

Lichens

Lichens are useful bioindicators for air pollution, especially sulphur dioxide pollution, since they derive their water and essential nutrients mainly from the atmosphere rather than from soil. 

Lichens are useful bioindicators for air pollution, especially sulphur dioxide pollution, since they derive their water and essential nutrients mainly from the atmosphere rather than from soil.