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Pollution is when something is added to the environment harmful or poisonous to all living things. Smoke or dust in the air is a type of pollution . Sewage in drinking water is another type of pollution, containing germs and viruses. There are 3 kinds of pollution: water pollution, land pollution, and air pollution.
As pollution grows, ways to combat it have grown too. Solar energy and wind energy give people other ways to power their homes. When people use these alternative forms of energy, they put less carbon dioxide into the environment. 
Air pollution[change | change source]
Air can be polluted by many things. Air pollution includes poisonous gases, sulphur dioxide, nitrogen dioxide, carbon monoxide and very small particulates. Smoke and harmful gases released by fires, industries and thermal power plants cause air pollution. Using coal and wood as fuels for fire cause a lot of air pollution. Petroleum produces less pollution per tonne, but it causes a lot of pollution since a lot of it is burned globally. Air pollution may cause breathing problems such as asthma or other health problems. It also causes diseases like cancer.
Air pollution causes global warming and acid rain, which can lead to unpredictable levels of drought worldwide. This makes it difficult for the living organisms to survive.
Water pollution[change | change source]
Water pollution is the presence of harmful materials in water, such as sewage, dissolved metal, waste from farms, factories and crude oil spilled from oil tankers. The three main substances that pollute water are nitrates from fertilizers, sewage and detergents.
Activities such as bathing and washing clothes near lakes, ponds or rivers add nutrients like nitrate and phosphate into the water bodies.This leads to excessive growth of algae on the surface of water. It blocks the penetration of sunlight and air, thus reducing oxygen.
It causes harm to organisms living in water and can also harm people's health. In extreme cases, it may cause diseases like cancer.
Noise pollution[change | change source]
Noise pollution (also known as sound pollution) is harmful to the brain and hearing of all animals and humans. This includes the sound of vehicles, loud speakers, airplanes, jets, train horns etc. Noise pollution can cause ear problems or even permanent deafness, especially to older people. It also causes brain related problems.
Land pollution or Soil pollution[change | change source]
Soil pollution (also known as land pollution) is caused when man-made chemicals, such as hydrocarbons, heavy metals, and solvents, get into the soil.These chemicals come from industrial activities and from improper waste in disposal in leaky landfills. Soil pollution can cause health risks. The chemicals can produce harmful vapors, or they can contaminate water supplies underneath the polluted soil.
Plastic pollution is the accumulation of plastic products in the environment that adversely affects wildlife, wildlife habitat, or humans. It is caused because plastic takes thousands of years to decompose or mix in the earth.
Thermal pollution[change | change source]
Thermal pollution is the harmful release of heated liquid into a body of water or heat released into the air as a waste product of a business.
A common cause of thermal pollution is the use of water as a coolant by power stations and industrial manufacturers. This puts back warm water, and so raises the temperature and decreases the oxygen content of the water.
Reference[change | change source]
Environmental pollution refers to the introduction of harmful pollutants into the environment. These pollutants contaminates the environment. It has a hazardous effect on the natural world and on the activities of living beings.
The major types of environmental pollution are air pollution, water pollution, noise pollution, thermal pollution, soil pollution and light pollution.
Deforestation and hazardous gaseous emissions also leads to environmental pollution. During the last 10 years, the world has witnessed severe rise in environmental pollution.
We all live on planet earth, which is the only planet known to have an environment, where air and water are two basic things that sustain life. Without air and water the earth would be like the other planets – no man, no animals, no plants. The biosphere in which living beings have their sustenance has oxygen, nitrogen, carbon dioxide, argon and water vapor. All these are well balanced to ensure and help a healthy growth of life in the animal world. This balance does not only help the life-cycles of animals and plants, but it also creates the perennial sources of minerals and energies without which the human civilization of to-day could not be built. It is for this balance that the human life and other forms of existence have flourished on earth for so many thousands of years.
Also read: Short paragraph on Pollution
But man, as the most intelligent animal, never stopped being inquisitive, nor was he content with the bounties of nature. His quest for knowledge and search for security succeeded in exploring newer and wider avenues of mysteries that remained baffling so long. Man’s excursions into the darkest regions of mysteries laid foundations for the stupendous civilization, for the conquests of men had ensured their domination in their world and gave them a key to control all the forces in nature.
With the dawn of the age of science and technology, there has been huge growth and development of human potentials. And, it is here that man first began losing control and became prisoner of his own creations.
Also read: Pollution: Different Types of Pollution
Sources and Causes
The sources and causes of environmental pollution includes the following:
- Industrial activities: The industries all over the world that brought prosperity and affluence, made inroads in the biosphere and disturbed the ecological balances. The pall of smoke, the swirling gases, industrial effluents and the fall-out of scientific experiments became constant health hazards, polluting and contaminating both air and water. The improper disposal of industrial wastes are the sources of soil and water pollution. Chemical waste resulting from industry can pollute lakes, rivers and seas and soil too as well as releasing fumes.
- Dumping solid waste: Household and commercial waste pollutes the environment when not disposed of properly.
- Vehicles: The smoke emitted by vehicles using petrol and diesel and the cooking coal also pollutes the environment. The multiplication of vehicles, emitting black smoke that, being free and unfettered, spreads out and mixes with the air we breathe. The harmful smoke of these vehicles causes air pollution. Further, the sounds produced by these vehicles produces causes noise-pollution.
- Rapid urbanization and industrialization: The urbanization and the rapid growth of industrialization are causing through environmental pollution the greatest harm to the plant life, which in turn causing harm to the animal kingdom and the human lives.
- Population overgrowth: Due to the increase in population, particularly in developing countries, there has been surge in demand for basic food, occupation and shelter. The world has witnessed massive deforestation to expand absorb the growing population and their demands.
- Combustion of fossil fuels: The combustion of fossil fuels pollutes the air, the soil and the water with noxious gases such as CO2 and CO.
- Agricultural waste: Fertilizers and pesticides used in agriculture are key causes of environmental pollution.
Also read: Sources of Water, Air and Soil Pollution
Environmental Pollution can have devastating effects on sea life, on crops and on human health. It affects all plant, human and animal life in a negative way. Almost all of our gains in the fields of industrial progress, science and technology had so far been realized at the cost of our health. Even our flora and fauna were found to be threatened with extinction.
All this really leaves us wondering if all our achievements and industrial civilization really help us climb the peaks of prosperity or simply take us down the blind alleys of adversity. It is not only in India, but all over the world – even in Europe and U.S.A. – that the question is being raised whether all is well with our industrial growth and progress in the field of science and technology. Many crusaders against environmental pollution are vehemently protesting against the indiscriminate violations committed daily in the name of development.
The environmental pollution is not caused by the fall-out from nuclear tests or industries alone. The smoke left behind the automobiles and other vehicular traffic, the increasing use of synthetic detergents, nitrogen fertilizers and insecticides contaminate both air and water.
- The water we drink the vegetables are all contaminated to-day. As a result of this contamination our world is afflicted with a quite a number of incurable diseases.
- Environmental pollution affects water sources which mean that there is less fresh water available for drinking, washing, cooking and irrigating crops.
- Nothing in this world is immune, no life is safe and the future of this world is bleak.
- The factories are mostly built in populated areas and the smoke-emitting vehicles ply through the congested areas. Besides causing immense disturbances, there are increasing case of pulmonary tuberculosis and thrombosis and various sorts of brain and heart complications.
- Air-pollution may cause severe lungs-diseases, asthma, brain-disorder diseases, etc.
- Soil-pollution may have negative effect on farm output ratio. It can also contaminate the ground water.
- Noise-pollution have negative effects on hearing or auditory sense organs. It can also cause deafness, tiredness, and mental losses.
- The heat generated by industries and vehicles causes thermal pollution by raising the environmental temperature of the nearby areas.
- Many scientists believe that we are living in an era of mass extinction, due to human made environmental pollution.
The birth of mills and factories is the result of the growth of industry in this machine-predominated age. As long as they will be there, they must emit smoke, pollute the air and hasten our end by slow-poisoning.
The worst industrial environment tragedy occurred at Bhopal on December 3, 1984 as a result of toxic and poisonous leakage of methyl isocyanate (MIC) gas from a multi-national Union Carbide pesticides manufacturing plant. Over 2000 people including woman and children were killed, and hundreds were severely hurt.
What then is the remedy? A lot of pollution derives from human activity. As a result, it is we humans who will be able to stop pollution. But, there surely cannot be any radical solution, for the existing factories cannot be bodily lifted to a place far from the populated zone. However, the following attempts can be made to solve the problem of environmental pollution.
- The Government can at least see that future factories are set up at a distant place, an industrial complex far away from the township.
- Researcher may find out how to avoid harmful smoke from running vehicles.
- Deforestation should be stopped and Forestry should be developed.
- Discharge of Factory wastes in rivers should be banned so as to make the river-water free from pollution.
- Recycle the sewage or in all events it can be disposed of in such a way as to prevent it from polluting the environment.
- Reducing the amount that we buy, reusing and repairing items wherever possible, and recycling as much as we can will all help to reduce the amount of waste dumped in the environment. When we do need to throw away waste we should do so responsibly.
- Organic farming could be one solution for reducing environmental pollution levels.
- Using fewer plastics.
- Disposing of litter and chemicals responsibly.
- Burning fewer fossil fuels.
- The UN Conference on Human Environment was convened to study the profound changes in the relationship between man and his environment in the wake of modern scientific and technological developments.
- The World Health Organization also set up an international network for the monitoring and study of air pollution on a global scale and for devising possible remedies.
We can very well notice the abnormal behaviour of the seasons – the cycle developing clogs in its wheels; and the worried experts fear that the disturbed balance in the biosphere has assumed such serious proportion that very soon our world would be uninhabitable like Hiroshima of 1945. But it is heartening to find the entire world aware of the menace. Some of the advanced countries have already taken some measures to meet it. If we fail to restore the ecological balance right now, it would be too late tomorrow.
Updated with input article from ‘Laura’.
Category: Blog, EnvironmentTagged With: Environment, Pollution