Question

the environment al pollution essay

Answer 1

Environmental implications due to pollution are in various aspects. These produce serious problem for human beings to maintain its existence, protection, survival and for the improvement of general standard. The basic needs of human beings have disturbed natural resources and finally led to a situation which has threatened to be disastrous.



In the recent years everyone has started thinking over the problem of over-population and its consequences, which is primarily concerned with the environmental pollution and every effort should be made to focus public attention to save mankind from self destruction and steps should be taken at national and international levels so that the consequences may not become worse.

The ecological state of biosphere is becoming more and more dis-balanced day by day due to technical and industrial advancements as well as population explosion. Vast changes are taking place in the environment due to interaction between human society and environment itself. Man is exploiting the natural resources for its own interest and many such instances are there as clearly indicate that man has disturbed the natural balance for the sake of small benefits and has changed the environment of many places to such an extent that they are not fit for inhabitation by living beings.

The environmental science is concerned with the study of all the systems of air, land, water, energy and life that surround us. Environmental problems are so diverse and diffused that virtually every activity of civilization interacts with the environment. The addition of extraneous materials or energy in a particular environment in concentrations greater than the normal renders the environment partially or wholly un-favourable for human life.

This is referred to as environmental pollution. “Environmental pollution is the un-favourable alteration of our surrounding, wholly or largely as by-products of man’s action through direct or indirect effects of changes in energy patterns, radiation levels, chemical and physical constitutions and abundance of organisms”. These changes may affect man directly or through his supplies, of water and agricultural and other biological products, his physical objects or possessions, or his opportunities for recreation and appreciation in nature—from U.S. Products Science Advisory Committee, Environmental Pollution Panel (1965)

Pollution and contamination are two terms sometimes used interchangeably. Contamination is the presence of harmful substances or organisms that may cause diseases or discomfort to human beings. Polluted material need not necessarily be contaminated. Dependent as he is on air, water and food from environment, man is the main culprit in polluting these natural resources to the point of no return.

Pollution is defined as the addition of extraneous materials to water, air or land which adversely affect the natural quality of the environment. In some cases, it may involve the removal, rather than addition, of constituents from the environment. A pollutant is a substance which may alter environmental constituents or cause a pollution. A pollutant can also be defined as constituent in the wrong amount at the wrong place or at the wrong time. For example, nitrogen, phosphorus and potassium are extensively used in agriculture to increase crop yields but sometimes they cause pollution of lakes and rivers by promoting algal growth.



The natural sources of pollution are, no doubt, important on a global scale man generated pollutants may be more important in urban and industrial areas where the adverse effects of pollution are most severe. There is accumulating evidence that many types of pollutants can be distributed over the whole earth in relatively short period of time. Radioactive fallout from atmospheric nuclear explosion test is detectable throughout the world within a few days ‘or weeks; not even the polar regions are immune from fallout.

Comfort giving automobile’s are polluting the atmosphere with oxides of C, N, and other noxious gases. Coal, diesel oil and other fossil fuels are emitting suffocating SO2and choking our lives. Synthetic chemicals like plastics are adding to the problem of solid waste disposal; while detergents that cannot be decomposed by micro-organisms are making the natural rivers and streams polluted bubble boxes. Some other effects of environmental pollution are problems of health, soil erosion, sanitation, water supply, energy crisis, population and depletion of natural resources.



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