بحث حول التلوث بالانجليزية pollution

نقدم لطلبة الثانوي بحث حول التلوث باللغة الانجليزية : تعريف التلوث , أنواع التلوث , نتائجه و كيفية الحد من التلوث

• definition of pollution
• types of pullution
• measures to stop pollution

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

Types  of pollutions

Air Pollution.
Water Pollution.
Land Pollution.

Air Pollution

Air pollution is the accumulation in the atmosphere of substances that, in sufficient concentrations, endanger human health or produce other measured effects on living matter and other materials. Among the major sources of pollution are power and heat generation, the burning of solid wastes, industrial processes, and, especially, transportation. The six major types of pollutants are carbon monoxide, hydrocarbons, nitrogen oxides, particulates, sulfur dioxide, and photochemical oxidants.

Examples of Air Pollution:Noise Pollution;Acid rain,Exhaust Gases of Vehicles,Tobacco Smoke

• The following measures can be used to control air pollution:

Although individual people can help to combat air pollution in their own immediate environment, efficient control can be best achieved by legislation. Some commonly enforced control measures include

the establishment of more smokeless zones;
control over the kinds of fuel used in cars, aeroplanes, power stations, etc.


Water Pollution

Water pollution is the introduction into fresh or ocean waters of chemical, physical, or biological material that degrades the quality of the water and affects the organisms living in it. This process ranges from simple addition of dissolved or suspended solids to discharge of the most insidious and persistent toxic pollutants (such as pesticides, heavy metals, and nondegradable, bioaccumulative, chemical compounds).

Examples of Water Pollution:Industrial affluents,Mining and Agricultural Wastes,Sewage Disposal and Domestic Wastes

• The following measures can be used to stop water pollution:

every intelligent people should be wise enough not to pollute water in any way;
by research and legislation the pollution of water bodies, even though not entirely prevented, must be effectively controlled.

Land Pollution

Land pollution is the degradation of the Earth's land surface through misuse of the soil by poor agricultural practices, mineral exploitation, industrial waste dumping, and indiscriminate disposal of urban wastes. It includes visible waste and litter as well as pollution of the soil itself.

Examples of Land Pollution:Soil Pollution,Waste Disposal

• The following measures can be used to control land pollution:

anti-litter campaigns can educate people against littering;
organic waste can be dumped in places far from residential areas;
inorganic materials such as metals, glass and plastic, but also paper, can be reclaimed and recycled.