eassy on air
pollution in 200 words
Answers
Answer:
Increasing concentration of the harmful and toxic materials in the fresh air of the atmosphere is causing air pollution. Variety of foreign particles, toxic gases and other pollutants released from various human activities are affecting the fresh air which has adverse effect to the living beings like human beings, animals and plants. The level of air pollution depends on the type and amount of pollutants released from various sources. Topographical and meteorological conditions are increasing the spread and concentration of the pollutants. Variety of raw materials used in the manufacturing process in industries is increasing the type and quantum of emissions of harmful gases. Increasing population density is demanding the need of more industrialization which ultimately causes air pollution.
Air Pollutants like harmful liquid droplets, solids particulates, and toxic gases (oxides of carbon, halogenated and non-halogenated hydrocarbons, nitrogen and sulphur gases, suspended inorganic particulate matters, inorganic and organic acids, bacteria, viruses, insecticides etc) which are generally not the constituents of fresh air are very hazardous to the plant and animal life. There are two types of air pollution sources which are natural sources and man-made sources. Some natural sources of the air pollution are like volcanic eruptions, volcanoes (ashes, carbon dioxide, smokes, dust and other gases), deflation of sands, dusts, salts spray from seas and ocean, soil particles, storms, forest fires, cosmic particles, rays, bombardment of asteroid materials, comets, pollen grains, fungal spores, viruses, bacteria, etc.
Man-made sources of the air pollution are industries, agriculture, power plants, automobiles, domestic sources, etc. Some of the air pollutants from the man-made sources are like smokes, dust, fumes, particulate matters, gases from kitchen, domestic heating, emissions from different vehicles, use of insecticides, pesticides, herbicides, heat created from power plants, smokes, fly ash, etc. Because of the increasing number of air pollutants, it has been divided into two types such as primary pollutants and secondary pollutants. Primary pollutants are those affecting the fresh air directly and emitted from smoke, ash, dust, fumes, mist, spray, inorganic gases, carbon dioxide, carbon monoxide, sulphur dioxide, hydrogen sulphide, ammonia, nitric oxide and radioactive compounds. Secondary pollutants are those affecting the air indirectly by chemical interactions to the primary pollutants and other atmospheric constituents such as sulphur-trioxide, ozone, hydrocarbons, nitrogen dioxide, etc.
The get together effort of the human beings all over the world may help in controlling the level of air pollution. The establishment of industrial estates should be away from residential areas, motivate use of tall chimneys (with filters and electrostatic precipitators) instead of small, promote use of high temperature incinerators, use of non-combustive sources of energy, promote use of non-lead antiknock agents in the gasoline, promote re-plantation and so many positive efforts.
Earlier the air we breathe in use to be pure and fresh. But, due to increasing industrialization and concentration of poisonous gases in the environment the air is getting more and more toxic day by day. Also, these gases are the cause of many respiratory and other diseases. Moreover, the rapidly increasing human activities like the burning of fossil fuels, deforestation is the major cause of air pollution.
How Air Gets Polluted?
The fossil fuel, firewood, and other things that we burn produce oxides of carbons which got released into the atmosphere. Earlier there happens to be a large number of trees which can easily filter the air we breathe in. But with the increase in demand for land, the people started cutting down of trees which caused deforestation. That ultimately reduced the filtering capacity of the tree.
Moreover, during the last few decades, the numbers of fossil fuel burning vehicle increased rapidly which increased the number of pollutants in the air.
Causes Of Air Pollution
Its causes include burning of fossil fuel and firewood, smoke released from factories, volcanic eruptions, forest fires, bombardment, asteroids, CFCs (Chlorofluorocarbons), carbon oxides and many more.
Besides, there are some other air pollutants like industrial waste, agricultural waste, power plants, thermal nuclear plants, etc.
Greenhouse Effect
The greenhouse effect is also the cause of air pollution because air pollution produces the gases that greenhouse involves. Besides, it increases the temperature of earth surface so much that the polar caps are melting and most of the UV rays are easily penetrating the surface of the earth.
Effects Of Air Pollution On Health
The air pollution has many bad effects on the health of people. It is the cause of many skins and respiratory disorder in human beings. Also, it causes heart disease too. Air pollution causes asthma, bronchitis, and many other diseases.
Ways To Reduce Air Pollution
Although the level of air pollution has reached a critical point. But, there are still ways by which we can reduce the number of air pollutants from the air.
Reforestation- The quality of air can be improved by planting more and more trees as they clean and filter the air.
Policy for industries- Strict policy for industries related to the filter of gases should be introduced in the countries. So, we can minimize the toxins released from factories.
Use of eco-friendly fuel- We have to adopt the usage of Eco-friendly fuels such as LPG (Liquefied Petroleum Gas), CNG (Compressed Natural Gas), bio-gas, and other eco-friendly fuels. So, we can reduce the amount of harmful toxic gases.
To sum it up, we can say that the air we breathe is getting more and more polluted day by day. The biggest contribution to the increase in air pollution is of fossil fuels which produce nitric and sulphuric oxides. But, humans have taken this problem seriously and are devotedly working to eradicate the problem that they have created.
Above all, many initiatives like plant trees, use of eco-friendly fuel are promoted worldwide.