Acid rain is caused by two major air pollutants named sulphur dioxide and nitrogen dioxide.

● Acid rain contaminates water and enters man’s body which may cause potential threat to human health.

● Many bacteria, aquatic organisms and blue-green algae are killed due to acidification which disturbs the whole ecological balance.

● Acidification of soil leads to reduced forest productivity.

● Acid rain causes extensive damage to buildings (e.g. - Taj Mahal) and material of marble, limestone, slate etc.