Meaning of Air pollution : Air pollution refers to the release of pollutants into the air that are detrimental to human health and the planet as a whole. Air pollution occurs when harmful or excessive quantities of substances including gases, particulates, and biological molecules are introduced into Earth’s atmosphere.

Cause of Air pollution : The effluent gases produced by thermal power plants, industrial units and motorized vehicles get highly concentrated in certain areas. These gases include carbon dioxide, carbon monoxide, sulphur dioxide etc. which are emitted. The rapidly increasing number of motorized vehicles, failures of industrial units to employ appropriate pollution control systems and a major share of thermal power in energy is further intensifying this problem. Motorized vehicles have the maximum contribution in this.

Conclusion : Due to increase in air pollution, acid rain is caused. Gases emitted from industrial production, i.e. sulphur dioxide, nitric dioxide and carbon dioxide enter the atmosphere and form sulphuric acid, nitric acid and carbolic acid, which fall on earth along with rain. These then coming down to earth with rain, pollute the water sources of the earth and thus affect plant and animal life adversely, buildings are harmed and soil fertility is reduced. That is why, it is needed to control the increasing acidity of the environment by limiting the emission of such gases.