Air pollution is a mixture of
solid particles, biological molecules, or other harmful
substances into the Earth's atmosphere, which causes
disease, increases human fatality rate, and damages to
living organisms and natural environment.
Sources of pollution:
Dust carried by the wind.
Methane from cattle wastes.
Emissions from combustion of various
Effects of Air pollution
Respiratory and heart problems: Air
pollutants is linked to many illnesses such as
acute and chronic respiratory diseases,
cardiovascular diseases, and cancer. Several
million people are known to have died due to direct
and indirect effects of air pollution.
Effect on Wildlife: Toxic chemicals
present in the air can force wildlife species to
migrate and change their habitat. The toxic
pollutants can deposit on the surface of the ocean,
which affect the sea animals and
Acid Rain: Nitrogen oxides and sulfur
oxides produced from burning of fossil fuels can
dissolve in cloud droplets, which make them acidic.
When these droplets fall to the ground, they are
known as a form of acid rain, which is harmful to
human, animals, and crops.
Depletion of Ozone layer: The depletion
of the Earth's ozone layer is due to the presence
of some air pollutants, such as chlorofluorocarbons
and hydro chlorofluorocarbons in the atmosphere.
The thinning of the ozone layer in the stratosphere
allows harmful ultraviolet rays from the sun to
reach the surface, which can cause skin and eye
related health problems.