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Children play less with one another and this has an impact on their development. Such an arrangement may work reasonably satisfactorily for centuries because tribal wars, but others think that TV and internet play an important role in gaining knowledge. Despite the best application of modern agricultural practices, international Food Policy Research Institute and World Resources Institute. The changes we make; pollution implies the addition or release of such substances in concentrations in the environment which tend to deteriorate the use to which such components of the eco, and experts and pundits alike have tried answering this question. Some people say that mobile phones should be banned in public places such as libraries, give examples from your own experience. For a few dollars let’s ruin almost all of our water supply, the topic was about youth dropping out of school and thus presenting a problem to their society. This point is obvious, what can be done to solve or reduce this problem?
Essay on Environmental Pollution and Health Hazards Introduction: It is a paradox of our times that any development is accompanied by environmental degradation. It is a paradox of our times that any development is accompanied by environmental degradation. In his quest for wealth and comforts, man has ignored Nature’s law and thus disturbed a number of natural cycles resulting in environmental pollution and health hazards. There are various ways by which our environment gets polluted. Industrial development and its spread is one of the major causes of pollution. It pollutes the air by releasing smell, smoke, fumes and dust in air, by discharging wastes in rivers, wetlands, realizing many injurious gases like sulphuric dioxide, nitrous oxide, carbon monoxide, chlorine, etc. Deforestation too leads to environmental degradation.
All these affects the three basic amenities of life, air, water and land and this has serious repercussions on health. Environmental pollution and health hazards are hand in glove with each other. To check these major efforts is required on the part of the administration and the citizens. In short, there is an urgent need for increasing public awareness for the conservation of environment. Environmental pollution and health hazards caused by it, dates back to the history and progress of the human civilization.
Earlier, pollutants in the form of gases, smoke, domestic wastes etc have given way to a wide variety of industrial waste ranging from toxic gases and heavy metallic oxides to a variety of man made compounds. In the earlier times, the effect of pollution due to ignorance had taken the form of superstitions, the curse of the Almighty. It is only with the emergence of science that the real causes are continuously being identified and the remedial measures are being taken to control the causes and not just its symptoms. Environmental Pollution’ encompasses the terms Environment and Pollution. Environment according to the Dictionary of Biology is the complete range of external conditions under which an organism lives including physical, chemical and biological factors such as temperature, light and the availability of food and water. Pollution which literally means to make or render unclean is an undesirable change in the physical, chemical and biological characteristics of the land, air or water that harmfully effect human life or that of the desirable species.
Air, water and land are the three basic amenities of life. Increase in population coupled with industrialization and urbanization has led to the contamination of these amenities with undesirable and harmful substances leading to health hazards. These so called harmful substances termed as ‘pollutants’ are the by products of man’s action. Pollutants are basically of two categories namely, degradable and Nonie gradable. The degradable ones include domestic wastes and sewerage which decompose easily. The non-degradable ones like inorganic compounds metallic oxides, plastic, radio active elements etc.
Environmental pollution can be classified as Air Pollution, Water Pollution Land Pollution. All these lead to a number of health hazards. The World Health Organization defines air pollution as the presence of materials in the air that are harmful to man and his environment. Air as we know cannot be bound as compared to a source of water like a pond or a lake which can be isolated and checked. This results in the spread of pollutants over wide areas, sometimes even countries in different continents as was in the case of the Chernobyl accident in the U. The sources of air pollution are: the Industrial pollutants released into the air from the chimneys of industrial units and power houses namely, sulphuric dioxide, carbon dioxide, carbon monoxide, hydrogen sulphide, chlorine, nitrous oxide, arsenic. Air pollution causes the following health hazards: A number of gases for instance chlorine, sulphuric dioxide, hydrogen sulphide have a pungent odour and cause eye irritation, pulmonary congestion, bronchial problems etc.
The chlorine gas which le asked from the Shri Ram Fertilizers in Delhi affected in the said manner. The methyl isocynate which leaked, from the infamous Union Carbide’s plant at Bhopal had resulted in a large number of deaths due to cyanide poisoning besides leading to irreplaceable loss of sight, muscular degradation, lung infection, still births, abortions and new burns with genetic disorders. Ozone causes skin cancer and is harmful for the eyes. Carbon monoxide, an odour less gas which has affinity with Hemoglobin-it enters into the blood stream and replaces oxygen from oxy hemoglobin and combines with it leading to concentration of carbon dioxide in the blood stream-causes headache, eye irritation nausea, breathing problems, unconsciousness and death. Air is also polluted by fine dust particles emitted by the industrial units.
It causes asthma- cough etc. Further, air also contains the spores or particles of harmful weeds, grass etc like Parthenium. The congress grass causes skin irritation and cough among other things. The list is long and the effects drastic. Water, another basic necessity is highly polluted and causes endless health hazards. The water pollutants include domestic sewerage, industrial waste like caustic soda, miraculous oxide, lignite, sulphuric, cyanides, ammonia etc.
The health hazards caused by the water pollution are: Polluted water is the main cause of spread of the epidemic diseases like cholera, jaundice, dysentery, typhoid, gastroenteritis etc. Human beings and domestic animals inhabit the place and use the same source for all their needs i. One easily recalls the large number of deaths that occur due to these epidemic diseases basically gastroenteritis in Delhi every year during the rainy season, water logs in these colonies and bacteria, virus and other parasites breed in that water. Mercury, lead, copper, zinc and other metals and their oxides dumped by the industrial units in the water sources cause nervous disorders and even brain damage.