The discharge of hot effluents from industries, factories and mills and large volumes of warm cooling water from electricity generating stations may cause a temperature rise of several degrees in a river or canal. The processes of life involve many chemical reactions, and the rate of these chemical reactions vary according to the changes in temperature. Apart from biochemical reactions, temperature is considered vitally important to physiology and in controlling reproductive cycles, digestion rates and respiration rates. The effects of thermal pollution are mainly seen on aquatic animals, particularly fish, on whom the human society so much depends. The modern world has a new pollution to face-that of noise. The scientific approach for considering noise as a pollutant is by decibel.
Environmental pollution short essay in english
Thus the soil is heavily polluted day-by-day by hazardous materials and micro-organisms, which enter the food chain or paper water and are consequently ingested by man. As a result, there are numerous health problems. Those bacteria which are transmitted from air to soil infect man causing bacillary dysentery, cholera, typhoid and paratyphoid fever. Flies which breed or get in contact with the contaminated soil become carriers of disease organisms. The eggs personal of some of the parasitic worms get incubated in the soil and both the eggs and larvae are infective. Radioactive pollution of the environment is due to the increase in natural background radiation, emerging from the activities of man involving the use of naturally occurring or artificially produced radio-active materials. The chances of radioactive materials Spreading into the air have increased extensively as a result of the discovery of artificial radio-activity, and particularly due to the development of atomic bomb and of techniques of harnessing nuclear energy. Biological organisms including human beings are subjected to radioactive contamination either by consumption or inhalation. Chronic exposure to radiation leads to leukemia in an individual and affects even an unborn child. Thermal pollution denotes the impairment of the quality of environment air or water by a rise in its temperature.
Thermal pollution of water. Ways is also causing increased concern. In general, pollution from so-called point sources like sewage pipes and factories is under progressively better control. But the contamination of waterways from diffuse sources-run-off from farmlands which tends to carry fertilizers, pesticides, and organic matter, and from urban areas, which often carries oil, metals, and other pollutants-remains largely uncontrolled and is on the increase in most countries. Acids and heavy metals falling with the rain constitute additional sources of water degradation. The problem of water pollution is growing day-by-day; today a great many people are deprived of disease-free potable water, as almost all the sources of water-from seas to wells-are increasingly being infested with different kinds of pollutants. Soil pollution usually results from the disposal of solid and semi-solid wastes from agricultural practices and from insanitary habits. Fallouts from atmospheric pollution also contribute guaranteed to soil pollution. Direct pollution of the land by pathogenic organisms is also important.
Today, many Third World cities and even entire rural valleys are blanketed by smoky haze, the poor mans smog. In the nineteenth and early twentieth centuries, many cities of Europe and the us were covered with black shrouds of smoke. Despite the successes registered against smoke, the pollution of city air by other products of coal combustion (above all, sulphur dioxide) and by nitrous oxides, hydrocarbons, petroleum wastes, and carbon mon oxide continues to worsen in most of the countries. Strong evidence indicates that prevailing levels of air pollution contribute to the development of chronic respiratory diseases (emphysema, asthma, and chronic bronchitis) besides short-term respiratory afflictions as well. And those living near smelters and refineries often essay face increased cancer risks because of the toxic substances spewing from smoke-stacks. Rising concern about the physical discomfort and reduced visibility caused by pollution, and rising evidence of the damage being wreaked on crops and materials, joined health considerations to spur enactment of new anti pollution laws. Over the last 25 years, many countries have begun trying to regulate the flow of pollutants in the air, air pollution can no longer be addressed as simply a local urban problem. The presence in water of micro-pollutants-toxic chemicals and metals—and of disease-causing micro-organisms has increased over the years.
Though the dictionary describes pollution as the act of making something foul, unclean, dirty. Impure, contaminated, defiled, tainted. Environmental pollution may be described as the unfavorable alteration of our surroundings. It takes place through changes in energy patterns, radiation levels, chemical and physical constitutions, and abundance of organisms. It includes release of materials into atmosphere which make the air unsuitable for breathing, harm the quality of water and soil, and damage the health of human beings, plants and animals. Air pollution in one form or another has accompanied human society from the beginning. Cooking over a wood/ dung cake fire often creates a smoky, unhealthy living environment.
Essay on environment and pollution - choose Expert and
Plato lamented the destruction of soils and forests in ancient Greece. Dickens and Engels wrote eloquently of the wretched conditions spawned by the Industrial revolution. But the surge in concern about environmental quality over the last three decades has been uniquely widespread and impassioned. Appreciation of the material and spiritual importance of a healthy natural environment has spread. Perhaps the most dramatic intellectual shifts are occurring in the Third World, where understanding of the ecological under spinning of human life-largely lost in the post-war dreams of industrialisation is are on the rise. The new interest in environmental quality complements recent shifts in thought among development theorists, many of whom now stress the need to address the basic needs of the poor directly rather than hope that power the benefits of growth will trickle down to them. Improving the lot of the under-class and protecting environmental quality can be mutually-supportive goals.
Both internationally and within nations, the new appreciation of our bonds with nature has spawned new institutions and policies-new un and governmental agencies, new laws, altered aid programmes, new international treaties. Yet for the most part, responses remain inadequate to the needs. For the most urgent need today is to protect and preserve what remains of the environment. To do that one has to understand the meaning of pollution and consider ways of tackling. Whenever we encounter the term pollution now, we mean environmental pollution.
Air pollution causes allergies asthma lung cancer and bronchitis. Radioactive pollutants cause respiratory problems paralysis cancer and other disease. Excessive noise pollution can lead to deafness anxiety stress increase in the rate of heartbeat and other health problems. In order to fight this menace of pollution vigorous efforts should be made the anti pollution law should be strictly implemented. In order to check water pollution sewage and the factory waste should be planted everywhere and vehicles should be made eco friendly. Public education and awareness of the relationship between climate change and human health is a key to deal with these problems more effectively.
General awareness is a must to save our planet from destruction. A ll the nations of the world should work united to control environmental pollution. Concern for environment has increased and spread over recent years. Pollution-a major environmental concern. Types and sources and effects of pollution. Causes and associated problems. Remedial measures-existent and suggested.
Essay about pollution, logan Square auditorium
The soil yardage gets heavily polluted by hazardous materials and micro organisms, which enter the food chain or water and create numerous health problems. The emission of greenhouse gases has led to climatic changes. The increase in pollution has resulted in global warming. Global warming is an average increase in the earth temperature due to greenhouse effect as a result of both natural and human activity. The term climate is often used interchangeably the term global warming. The ice caps in the polar regions have begun to melt fast. This has resulted in the rise of the water level of the seas and oceans. Grass sprouting in Antarctica and snowfall in the desert of the united Arab emirates reviews are all the warning signals of global warning. Pollution causes different types of diseases.
This radioactive pollution may cause cancers, abnormal births and mutations in men. The taj Mahal in Agra is affected by the binding fumes emitted by the mathura refinery. Reports estimate that the monument would get defaced within a span of twenty years because of the harmful effluents of the emission from the refinery. Water pollution adversely changes the quality of water. It disturbs the balance of the ecosystem and causes health hazards. Water becomes polluted by the presence or addition of inorganic and organic or biological substances. Industrial effluents which are dumped into the rivers further add to the water pollution levels. Soil pollution usually results from the disposal of solid and semi solid wastes from agricultural practices and from insanitary habits.
the increased use of fertilizers, the rivers seas and oceans have become contaminated with harmful pollutants. Industrialization has led to urbanization. The migration of rural population to the cities in search of work has created an unhealthy environment. It has led to overcrowding and establishment of slum areas. Towns and cities are full of smoke, fumes dirt dust rubbish gases foul smell and noise. Nuclear explosions and nuclear tests also pollute the air. The spread of radioactive materials into the air has increased.
The industrial development and the Green revolution have adversely affected the environment. People have converted the life supporting system of the entire living world into their own resources and have vastly disturbed the natural ecological balance. Serious degradation and depletion have been caused due to the overuse, misuse and mismanagement of resources to meet the human greed. Environment pollution is defined as the unfavorable alteration of our surroundings. It is a by product of mans activities which directly or indirectly are responsible for the changes in paper environment. These changes could be in the physical chemical or biological characteristics of land air or water that harm human life and other living things. Population explosion, rapid industrialization deforestation unplanned urbanization scientific and tech logical advancement etc. The major causes of environmental pollution. Nearly 35 percent of India total land area is subjected to serious environmental pollution.
Pollution essay in english - custom Papers writing Aid
01, the word pollution has been derived from the latin word pollution, which means to make dirty. Pollution is the process of making the environment land water and air dirty by adding harmful substances. Pollution causes imbalance in the environment. This best imbalance has threatened the very survival of all forms of life. It is a threat to the whole world. India ranks a low 125 out of 132 countries in the Environmental performance Index 2012. This report is produced by the researchers of Yale and Columbia university in association with the world Economic Forum. Environmental pollution is a serious problem of the industrialized societies.