الوسم: Project

The environment pollution leads to fatal results as for humans and all living
organisms Pollution affects badly all living organisms . Man has ruined
the nature balance . Cutting down many trees and decreasing
the cultivated areas to be replaced by dwelling areas constitute stumbling
obstructions that face such nature balance . Air pollution , water pollution
and soil pollution result in bad effects that may lead to the spread
of infectious diseases every where . It is only man to be blamed for
destroying the blessings the nature has endowed humans .
Hence , the individuals and communities should cooperate to put an end
to such a fierce enemy against development and
progress . There should be strict measures against
pollution nature . It is not the responsibility
of the Ministry of Environment only but the responsibility of each
individual as well .The role of awareness is very significant
in this respect
. Man should not let the fruits of technology spoil everything .
Wise dealing and cautious use may save humanity from
fatal results .

الترجمه
تلوث البيئة يؤدي إلى نتائج مميتة مثل لجميع البشر والكائنات الحيةالتلوث يؤثر بشدة
جميع الكائنات الحية. رجل فقد دمرت توازن الطبيعة. قطع الاشجار كثيرة وتناقص المساحات
المزروعة لتحل محلها مناطق سكنية تشكل عقبة العقبات التي تواجه مثل هذه توازن الطبيعة.
تلوث الهواء ، تلوث المياه وتلوث التربة نتيجة في الآثار السيئة التي قد تؤدي إلى انتشار الأمراض
المعدية في كل مكان. ذلك هو الرجل الوحيد الذي يتحمل مسؤولية تدمير عليه الطبيعة
قد وهبت البشر.وبالتالي ، يجب على الأفراد والمجتمعات التعاون من أجل وضع حد لمثل

هذا العدو الشرس ضد التطور والتقدم. ينبغي أن تكون هناك تدابير صارمة ضد الطبيعة من التلوث.
أنها ليست من مسؤولية وزارة البيئة فحسب ، بل على عاتق كل فرد كذلك. إن دور التوعية مهمة
جدا في هذا الصدد. الرجل لا ينبغي السماح للثمار التكنولوجيا البرونزية يفسد كل شيء.
من الحكمة التعامل والاستخدام الحذر قد إنقاذ البشرية من النتائج القاتلة

[ بحث عن التلوث البيئي باللغة الانجليزية ]

POLLUTION

Pollution is contamination by a chemical or other agent that renders part of the environment unfit for intended or desired use. It deserves emphasis that the environment also refers to the place where you live. Natural processes have released toxic chemicals into the environment throughout the history of the earth. Currently, the pollution generated by human activities presents the most serious problem.
There are basically 3 types of Pollution. They are:

1) Air Pollution
2) Water pollution
3) Land Pollution

Some of the major Causes of the Pollution are as follows:
i) Deforestation – For the establishment of factories, industries and due to urbanization in various parts of the world, trees are cut on a large scale without any adequate efforts to plant new trees. This leads to deforestation, which has caused a rise in the pollution levels and distortion of natural order.
ii) Polluted rivers – The wastewater and liquids from plants and factories are linked with nearby river water, which are polluted when they release disposal from these units. People in Developing/Undeveloped countries also pollute rivers by using the water in these rivers for washing clothes, utensils, bathing and other activities.
Oil spilled from ships pollute oceans around the world.
iii) Sound pollution – The machines used in factories make noise throughout the day, and this disturbs the peaceful atmosphere in the vicinity, as machines used without proper covering lead to sound pollution. This puts heavy mental strain on the people staying in the nearby areas.
iv) Air Pollution – Each year industrially developed countries generate billions of tons of pollutants. Many pollutants come from directly identifiable sources; sulphur dioxide, for example, comes from electric power plants burning coal or oil. Others are formed through the action of sunlight on previously emitted reactive materials (called precursors). For example, ozone, a dangerous pollutant in smog, is produced by the interaction of hydrocarbons and nitrogen oxides under the influence of sunlight. Ozone has also caused serious crop damage. The increasing number of vehicles have also lead to an increase in Air Pollution, due to the harmful gases like Carbon Monoxide emitted from these vehicles. Gases generated in the Chemical plants also cause air pollution. People suffer because of smoke and bad smell from the industrial units particularly from chemical plants.
v) Soil pollution – Dumping of wastes in many areas is a major cause of Soil Pollution. Also, when soil in and near production areas becomes dirty due to disposal of waste material, such land cannot be used for agricultural operations.
Pollution is also caused by iron and steel mills; zinc, lead, and copper smelters; municipal incinerators; oil refineries; cement plants; and nitric and sulphuric acid plants.

Effects Of Pollution Crisis:

Of the suite of pollutants that taint urban air, fine suspended particulate matter, sulphur dioxide (SO2), and ozone pose the most widespread and acute risks; however, airborne lead pollution is a critical concern in many cities as well. Recent studies on the effects of chronic exposure to air pollution have singled out particulate matter as the pollutant most responsible for the life-shortening effect of unhealthy air, although other pollutants may also play an important role. These pollutants cause respiratory and other health disorders.
Besides increasing blood pressure and stress levels, noise pollution can also have deleterious effects on hearing. There are two categories of hearing loss resulting from noise exposure. Acoustic trauma is hearing loss resulting from a single exposure to a very loud sound such as an explosion. Noise induced hearing loss is hearing loss arising from repeated exposure to moderate noise. The latter is the more common form of hearing loss due to noise pollution.
Water pollution infects the water and renders it unfit for drinking and other purposes. It is also a major cause of most of the water-borne diseases.
Awareness among masses, regarding the adverse effects of pollution around the world, can also help in reducing the intensity of pollution. This awareness can be created through various media like newspapers, television, radio, flyers, seminars, etc.

Measures Of Controlling Pollution
Various countries have set standards in legislation in the form of concentration levels that are believed to be low enough to protect public health. Source emission standards are also specified to limit the discharge of pollutants into the air, so that air-quality standards will be achieved. However, the nature of the problem requires the implementation of international environmental treaties, and to this end 49 countries agreed in March 1985 on a United Nations convention to protect the ozone layer. This “Montreal Protocol”, which was renegotiated in 1990, called for the phaseout of certain chlorocarbons and fluorocarbons by the end of the century and provides aid to developing countries in making this transition. In addition, several international protocols have been aimed specifically at reducing the incidence of acid rain. Awareness among masses, regarding the adverse effects of pollution around the world, can also help in reducing the intensity of pollution. This awareness can be created through various media like newspapers, television, radio, flyers, seminars, etc.
Conclusion
It is high time that we take this issue, of ‘Problems of Pollution’ seriously, or it could have adverse effects on our future generations

Pollution is the introduction of contaminants into an environment that causes instability, disorder, harm or discomfort to the physical systems or living organisms they are in.[1] Pollution can take the form of chemical substances, or energy, such as noise, heat, or light energy. Pollutants, the elements of pollution, can be foreign substances or energies, or naturally occurring; when naturally occurring, they are considered contaminants when they exceed natural levels. Pollution is often classed as point source or nonpoint source pollution.
Prehistory
But gradually increasing populations and the proliferation of basic industrial processes saw the emergence of a civilization that began to have a much greater collective impact on its surroundings. It was to be expected that the beginnings of environmental awareness would occur in the more developed cultures, particularly in the densest urban centers. The first medium warranting official policy measures in the emerging western world would be the most basic: the air we breathe.

The earliest known writings concerned with pollution were Arabic medical treatises written between the 9th and 13th centuries, by physicians such as al-Kindi (Alkindus), Qusta ibn Luqa (Costa ben Luca), Muhammad ibn Zakarīya Rāzi (Rhazes), Ibn Al-Jazzar, al-Tamimi, al-Masihi, Ibn Sina (Avicenna), Ali ibn Ridwan, Ibn Jumay, Isaac Israeli ben Solomon, Abd-el-latif, Ibn al-Quff, and Ibn al-Nafis. Their works covered a number of subjects related to pollution such as air contamination, water contamination, soil contamination, solid waste mishandling, and environmental assessments of certain localities.[3]

King Edward I of England banned the burning of sea-coal by proclamation in London in 1272, after its smoke had become a problem.[4][5] But the fuel was so common in England that this earliest of names for it was acquired because it could be carted away from some shores by the wheelbarrow. Air pollution would continue to be a problem there, especially later during the industrial revolution, and extending into the recent past with the Great Smog of 1952. This same city also recorded one of the earlier extreme cases of water quality problems with the Great Stink on the Thames of 1858, which led to construction of the London sewerage system soon afterward.

It was the industrial revolution that gave birth to environmental pollution as we know it today. The emergence of great factories and consumption of immense quantities of coal and other fossil fuels gave rise to unprecedented air pollution and the large volume of industrial chemical discharges added to the growing load of untreated human waste. Chicago and Cincinnati were the first two American cities to enact laws ensuring cleaner air in 1881. Other cities followed around the country until early in the 20th century, when the short lived Office of Air Pollution was created under the Department of the Interior. Extreme smog events were experienced by the cities of Los Angeles and Donora, Pennsylvania in the late 1940s, serving as another public reminder.[6]

Modern awareness

Early Soviet poster, before the modern awareness: "The smoke of chimneys is the breath of Soviet Russia"

Pollution became a popular issue after WW2, when the aftermath of atomic warfare and testing made evident the perils of radioactive fallout. Then a conventional catastrophic event The Great Smog of 1952 in London killed at least 8000 people. This massive event prompted some of the first major modern environmental legislation, The Clean Air Act of 1956.

Pollution began to draw major public attention in the United States between the mid-1950s and early 1970s, when Congress passed the Noise Control Act, the Clean Air Act, the Clean Water Act and the National Environmental Policy Act.

Bad bouts of local pollution helped increase consciousness. PCB dumping in the Hudson River resulted in a ban by the EPA on consumption of its fish in 1974. Long-term dioxin contamination at Love Canal starting in 1947 became a national news story in 1978 and led to the Superfund legislation of 1980. Legal proceedings in the 1990s helped bring to light Chromium-6 releases in California–the champions of whose victims became famous. The pollution of industrial land gave rise to the name brownfield, a term now common in city planning. DDT was banned in most of the developed world after the publication of Rachel Carson’s Silent Spring.

The development of nuclear science introduced radioactive contamination, which can remain lethally radioactive for hundreds of thousands of years. Lake Karachay, named by the Worldwatch Institute as the "most polluted spot" on earth, served as a disposal site for the Soviet Union thoroughout the 1950s and 1960s. Second place may go to the to the area of Chelyabinsk U.S.S.R. (see reference below) as the "Most polluted place on the planet".

Nuclear weapons continued to be tested in the Cold War, sometimes near inhabited areas, especially in the earlier s***es of their development. The toll on the worst-affected populations and the growth since then in understanding about the critical threat to human health posed by radioactivity has also been a prohibitive complication associated with nuclear power. Though extreme care is practiced in that industry, the potential for disaster suggested by incidents such as those at Three Mile Island and Chernobyl pose a lingering specter of public mistrust. One legacy of nuclear testing before most forms were banned has been significantly raised levels of background radiation.

International catastrophes such as the wreck of the Amoco Cadiz oil tanker off the coast of Brittany in 1978 and the Bhopal disaster in 1984 have demonstrated the universality of such events and the scale on which efforts to address them needed to engage. The borderless nature of atmosphere and oceans inevitably resulted in the implication of pollution on a planetary level with the issue of global warming. Most recently the term persistent organic pollutant (POP) has come to describe a group of chemicals such as PBDEs and PFCs among others. Though their effects remain somewhat less well understood owing to a lack of experimental data, they have been detected in various ecological habitats far removed from industrial activity such as the Arctic, demonstrating diffusion and bioaccumulation after only a relatively brief period of widespread use.

Growing evidence of local and global pollution and an increasingly informed public over time have given rise to environmentalism and the environmental movement, which generally seek to limit human impact on the environment.

صور مفيدة للمشروع