Essay on Air Pollution: Causes, Effects and Control of Air Pollution! In fact air pollution is the occurrence or addition of foreign particles, gases and other pollutants into the air which have an adverse effect on human beings, animals, noise pollution essay, buildings, etc. Combustion of natural gas, petroleum, coal and wood in industries, automobiles, aircrafts, railways, thermal plants, agricultural burning, kitchens, etc.
Chemical industries including pesticides, fertilizers, weedicides, fungicides. Processing industries like cotton textiles, wheat flour mills, asbestos. Concentration of industries in one area is another major cause of air pollution. The particulate substances include solid and liquid particles. The gaseous include substances that are in the gaseous state at normal temperature and pressure. The air pollutants have adverse effect on human beings, animals, vegetation, buildings. Air pollutants also change earth’s climate.
Aesthetic sense is also influenced by air pollutants. Particulate Matter: It is of two types—settleable and suspended. The smaller particles are able to remain suspended for long periods in the air. The important effects of particulate matter are. Dust and smoke particles cause irritation of the respiratory tract and produces bronchitis, asthma and lung diseases. Smog is a dark or opaque fog which is formed by the dust and smoke particles causing condensation of water vapours around them as well as attracting chemicals like SO2, H2S, NO2, etc.
Smog harms plant life through glazing and necrosis besides reduced availability of light. In human beings and animals it produces respiratory troubles. Particulate matter suspended in air, scatters and partly absorbs light. 100m3, cotton dust in ginning process produces pneumoconiosis or lung fibrosis called byssinosis.
It is formed by incomplete combustion of carbon fuels in various industries, motor vehicles, hearths, kitchens, etc. Carbon monoxide combines with haemoglobin of blood and impairs its oxygen carrying capacity. At higher concentration, carbon monoxide proves lethal. Sulphur Oxides: They occur mainly in the form of sulphur dioxide. It is produced in large quantity during smelting of metallic ores and burning of petroleum and coal in industries, thermal plants, home and motor vehicles. It causes chlorosis and necrosis of vegetation.