[pic]! [pic] ‘I’ll go out for a breath of fresh air’ is an often-heard phrase. But how many of us realize that this has become irrelevant in today’s world‚ because the quality of air in our cities is anything but fresh. The moment you step out of the house and are on the road you can actually see the air getting polluted; a cloud of smoke from the exhaust of a bus‚ car‚ or a scooter; smoke billowing from a factory chimney‚ flyash generated by thermal power plants‚ and speeding cars causing dust
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SOIL POLLUTION INTRODUCTION Soil is the thin layer of organic and inorganic materials that covers the Earth’s rocky surface. The organic portion‚ which is derived from the decayed remains of plants and animals‚ is concentrated in the dark uppermost topsoil. The inorganic portion made up of rock fragments‚ was formed over thousands of years by physical and chemical weathering of bedrock. Productive soils are necessary for agriculture to supply the world with sufficient
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NOISE POLLUTION: A SLOW POISON Whether knowingly or unknowingly‚ every one of us contributes to noise pollution‚ because most of our day-to-day activities generate some noise. Often neglected‚ noise pollution adversely affects the human being leading to irritation‚ loss of concentration‚ loss of hearing. Identify the sources of noise pollution. Once identified‚ the reason(s) for increased noise levels to be assessed. Now‚ efforts shall be made to reduce the undesired noise levels from (unwanted)
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Air pollution Air pollution is a problem everywhere in the world. Local air pollution usually affects big cities. Air pollution becomes a worldwide problem when local pollution moves away from where it came from. For example‚ winds carry air pollution made in the middle of the western part of the United States to Canada‚ like acid precipitation. Acid precipitation Acid precipitation is precipitation‚ like rain‚ sleet‚ or snow‚ that contains acids from air pollution. When fossil fuels are burned
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Project on Air Pollution BIO-103.3 Summer 2013 Prepared for: Dr. S.M. Mostafa Kamal Khan (SKK) Introduction to Pollution: What is Pollution? Pollution is the introduction of contaminants into the natural environment that causes 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. Air Pollution: Air pollution is the introduction
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country indicate their pitch in decibel in the nosiest areas of corresponding cities‚ e.g. Delhi- 80 db‚ Kolkata - 87‚Bombay-85‚ Chennai-89 db etc. 3 Sources of Noise Pollution:- Noise pollution like other pollutants is also a by- product of industrialization‚ urbanizations and modern civilization. Broadly speaking ‚ the noise pollution has two sources‚ i.e. industrial and non- industrial. The industrial source includes the noise from various industries and big machines working at a very high speed
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Over time‚ there seems to have been a progressive convergence of mental illness and violence in day-to-day clinical practice. From early declarations disavowing the competence of mental health professionals to predict violence‚ there has been a growing willingness on the part of many mental health professionals to predict and manage violent behaviour. With the advent of actuarial risk assessment tools‚ violence risk assessments are increasingly promoted as core mental health skills: expected of mental
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Air Pollution * Pollutants enter the air from various sources‚ but burning of fossil fuels contributes the most to air pollution. * Exhaust fumes from vehicles contains soot (tiny carbon particles)‚ lead (from cars using unleaded petrol)‚ carbon monoxide‚ oxides of nitrogen and hydrocarbons due to the incomplete combustion of fossil fuels. * Burning of fossil fuels in the combustion engines of vehicles and electrical power stations also releases large amount of carbon dioxide into the
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MARINE POLLUTION Between 1976 and 1996 a total of 4647 incidents resulted in the spill of approximately 2‚369‚470 barrels of oil into the environment. In addition‚ between 1997 and 2001‚ Nigeria also recorded a total number of 2‚097 oil spill incidents. Nigeria’s largest spill was an offshore well-blow out in January 1980 when an estimated 200‚000 barrels of oil (8.4million US gallons) spilled into the Atlantic Ocean from an oil industry facility and that damaged 340 hectares of mangrove (Nwilo
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Essay 1 Air Pollution: Causes and Effects It keeps us alive but at the same time‚ it can also be harmful. We breathe air everyday. Air provides us with oxygen that is essential for living. Nitrogen‚ water vapor‚ and inert gases comprise air along with oxygen. Emission of substances that contaminate air results to pollution. Causes Air pollution is both natural and human-based. Natural air pollution is caused by phenomenon such as volcanic eruption‚ wind erosion‚ decomposition and radioactive
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