Atmospheric Pollution

Amongst the various pollution, air pollution is of greatest important. It can be readily noticed as it causes immediate health problems. The hazardous gases that lead to pollution are oxides of carbon, nitrogen, and sulphur.

Troposphere is a turbulent, dusty zone containing air, much water vapour and clouds. This is the region of strong air movement and cloud formation. The stratosphere, on the other hand, contains dinitrogen, dioxygen, ozone and little water vapour.

Atmospheric pollution generally studied as tropospheric and stratospheric pollution. The lowest region of atmosphere in which the human beings along with other organisms live is called troposphere. Troposphere is a turbulent dusty zone containing air, much water vapour and clouds. It extends up to the height of ~ 10 km from sea level. Above the troposphere, between 10 and 50 km above sea level lies stratosphere.

The presence of ozone in the stratosphere prevents about 99.5 per cent of the sun’s harmful ultraviolet (UV) radiations from reaching the earth’s surface and thereby protecting humans and other animals from its effect.

Troposphere

Troposphere occurs due to the presence of undesirable solid or gaseous particle in the air. The major gases present in the troposphere: