top-rated free essay

Environmental Pollution

By putrinatashakcn Mar 26, 2014 511 Words
The most important problem faced by the modern world today is environmental pollution. Unless and until effective measures are adopted to prevent this grave problem, it is going to affect life on earth. Man has exploited the natural resources in order to meet the demands of the ever-increasing population and also to meet the requirements of industries. As the demand for basic things like food, water, clothes and shelter increased; man exploited natural resources like minerals, forests, water and agriculture. Even today, scientists are making efforts to produce more and more goods using the latest technology. All these have resulted in environmental pollution.

Water is very necessary for life. But it is polluted. The major factors of water pollution are sewage and domestic wastes, industrial effluents, agricultural discharges, fertilizers and. pesticides, toxic metals, thermal waste and radioactive materials. Sea water gets polluted by the waste thrown out from cargo ships and by the dumping of wastes from nuclear reactors. People throw dead bodies of men and animals into the rivers. Villagers bathe their cattle in ponds and rivers. All these go to pollute the water, make it unfit for drinking, and ruin all forms of life in the water.

Air pollution or atmospheric pollution is mainly caused by the gases given out by burning petroleum products, coal, firewood etc. Vehicles emit large amounts of gaseous pollutants into the air. The exhaust gases from automobiles and factories add to the air, sulphur dioxide, carbon monoxide, carbon dioxide, nitrogen oxide, dust etc. Such polluted atmosphere causes acid rain. It is now calculated that the content of carbon dioxide in the atmosphere has increased by 25% in the last 100 years. The mean temperature of the atmosphere has increased from .3°C to .7°C during the period. Carbon monoxide leads to respiratory problems and acid rains due to sulphur dioxide damage crops, plants and marble buildings. Smoke causes pollution in big industrial cities. The ozone layer has depleted to the extent of 3 to 4% in the last 100 years. Chloro-fluro-carbons escaping from damaged fridges, air-coolers, sprays and artificial aerosoles, destroy the ozone layer. Supersonic aeroplanes seeking this zone for their flight consume ozone largely and replace it with carbon-dioxide.

Sound pollution is also very harmful. Loud sounds of buses, trains, aeroplanes etc. cause sound pollution. The loud noise of heavy machines in factories, industries and workshops also causes sound pollution. Loudspeakers, radio and television sets are injurious when these are tuned at full volume. Too much noise affects the nervous system, and causes deafness and mental diseases.

The most dangerous pollution is that of radioactivity. Leakage from a nuclear reactor and disposal of nuclear wastes cause pollution. When blasts take place, plant and animal life is destroyed and many people die of fatal diseases like cancer. The biological environment is polluted due to the excess use of pesticides and insecticides.

Environmental pollution-is a global problem today. Public awareness is a must to prevent pollution. Population control will also help to save the world from environmental pollution. Scientific exploitation of natural resources is yet another step to prevent environmental pollution.

Cite This Document

Related Documents

  • pollution

    ...Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of chemical substances or energy, such as noise, heat or light. Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants. TYPES OF POLLUTION Water Po...

    Read More
  • Pollution

    ...http://eschooltoday.com/pollution/noise-pollution/sources-of-noise-pollution.html Environmental pollution is one of the biggest problems the world faces today. It is an issue that troubles us economically, physically and everyday of our lives. The contamination of the environment is also being linked to some of the diseases that are around c...

    Read More
  • Environmental Pollution

    ... Environmental Pollution There are three main branches how we are destroying our environment the air pollution, water pollution and soil contamination. I chose this topic because I find it very important because it affects our environment, and not only that, indeed, we affect it and the consequences that could arise destroy our hom...

    Read More
  • Plastic Pollution

    ...Introduction Pollution can be defined as "The act or process of polluting or the state of being polluted, especially the contamination of soil, water, or the atmosphere by the discharge of harmful substances." As we become more technologically advanced, we produce materials that can withstand extreme temperatures, are durable and easy to ...

    Read More
  • The Causes of Pollution

    ...The causes of pollution Pollution is the release of harmful environmental contaminants. The main air pollutants are carbon monoxide, lead oxides, sulfur dioxide and nitrogen oxides. The principle causes of pollution are exhaust pipes from motor vehicles, smoke released by factories and moreover, industrial plants burn coal and oil, which co...

    Read More
  • Environmental Pollution

    ...➢ Environmental pollution is contamination of air, water and land from man-made waste that causes instability, disorder, harm or discomfort to the ecosystem i.e. physical systems or living organisms. ➢ Pollution leads to depletion of the ozone layer, global warming and climate change. ➢ Pollutants are the elements of pollutio...

    Read More
  • Enviromental Pollution

    ...Environmental pollution is a term that refers to all the ways by which people pollute their surroundings. People dirty the air with gases and smoke, poison the water with chemicals and other substances, and damage the soil with too many fertilizers and pesticides: People also pollute their surroundings in various other ways. For example...

    Read More
  • Water Pollution

    ...In the current days we witness different types of pollution all around us. Some of them may not damage our health in a direct manner but could be harmful after long term exposure. Water pollution is one of the biggest problems that faces modern society and is harmful to the health of humans and animals because it affects every living organism in...

    Read More

Discover the Best Free Essays on StudyMode

Conquer writer's block once and for all.

High Quality Essays

Our library contains thousands of carefully selected free research papers and essays.

Popular Topics

No matter the topic you're researching, chances are we have it covered.