إعلان :: تم فتح تحميل المرفقات لجميع الزوار دون الحاجة لتسجيل الدخول 

صفحة 1 من 2 12 الأخيرةالأخيرة
النتائج 1 إلى 6 من 9
  1. #1
    عضو مميز الصورة الرمزية moon
    تاريخ التسجيل
    23 / 01 / 2008
    المشاركات
    23,480
    مقالات المدونة
    5
    معدل تقييم المستوى
    1052

    Icon (3) بحث متكامل عن التلوث.. Pollution مدعوم بالصور والعروض

    [TABLE1="width:70%;background-color:silver;"]
    [/TABLE1]
    [TABLE1="width:70%;background-color:silver;"]

    [/TABLE1]









    Introduction

    We all create pollution therefore everyone can make a difference to reduce pollution. Although it may seem like it is difficult to stop pollution, there are lots of things that can be done every day to reduce or eliminate pollution altogether




    ?What is Pollution

    ما هو التلوث؟



    ,Every day we pour or release harmful substances such as poisonous gases

    chemicals and garbage into our environment. These harmful substances that
    end up damaging the environment, are called pollution. Most pollution
    comes from factories and transportation but as you will see we all
    .contribute to it in many different ways








    All pollution is waste. Waste is unwanted or discarded material and when

    it is released into the environment it becomes pollution. When most
    people think of waste they think of garbage or trash that is littered all
    over the land. This type of waste is the one that most people are
    familiar with and it is commonly called solid waste. But solid waste
    pollution is not the only type of pollution out there. Can you think of
    ?other types



    In addition to solid waste there is air pollution, water pollution, soil

    pollution and even noise pollution. As you will see, if not handled
    properly, pollution can and has contaminated our air, water, soil and
    .land




    Air Pollution

    تلوث الهواء



    Every living creature relies on clean air to survive. Air is made up of a

    mixture of gases, mainly oxygen and nitrogen, with small amounts of
    carbon dioxide plus water. Air has no colour or smell, except when it is
    polluted. Dirty air can affect the health of humans, animals, plants and
    can even damage buildings. Industry and transportation produce most of
    the air pollution, releasing millions of tons of harmful substances into
    .the environment each year






    The burning of fossil fuels (coal and oil) is the source of or generates

    most of the world's energy. Unfortunately it also generates most of the
    world's air pollution. That is because when we burn the fossil fuels to
    produce energy we end up releasing waste in the form of toxic gases.
    Carbon monoxide, carbon dioxide, nitrogen oxides and sulphur dioxides are
    some of the most dangerous gases produced during the burning of fossil
    .fuels



    Carbon dioxide gases play a big role in the greenhouse effect by trapping

    heat rather than allowing it to escape into space. It is not just what is
    released into the air that causes problems; it is also how individual
    ,pollutants interact with each other, water and/or sunlight. For example
    sulphur dioxide and nitrogen oxide are both dangerous when they combine
    .with other substances to create problems such as smog and acid rain



    .Gases are not the only air pollutants that we should be concerned about

    Tiny bits of dust, ****l, soot and other materials also find their way
    into the atmosphere from manufacturing plants, construction sites, wood
    burning stoves and cars. These small particles reduce the quality of the
    .air that we breathe






    Also, sometimes rain contains chemicals called acids that can harm the

    ,environment including plants and animals living on land and in the water
    as well as damage buildings and other manmade structures such as
    monuments, roads and vehicles. Acids cause so much harm because they can
    burn into materials. Acid rain forms when sulphur dioxide and nitrogen
    dioxide (produced by burning fuels) are released into the air. These two
    gases mix with water to form a weak acid which falls as rain. The gases
    that cause acid rain are released by power plants, factories and
    transportation. Acid rain falls to the ground and is taken up by tree
    roots, eventually causing the trees to die. The acid rain will also
    .affect the plants and animals living in rivers and lakes




    Water Pollution

    تلوث المياه



    In addition to clean air, all animals and plants need a clean water

    supply in order to survive. You may think that we have lots of water but
    only a small amount of it is freshwater that we can use and we are
    .polluting our water in the same way we are polluting our air



    When harmful substances such as oil and chemical wastes enter the

    waterways either through accidents or through being intentionally dumped,
    they are soon carried away by tides or the flow of the river and are
    extremely difficult to remove. As a river makes it's way to the ocean, a
    number of different chemicals can enter its waters. Harmful chemicals can
    enter our rivers and lakes from any number of sources. For example they
    can seep out of dumpsites or pesticides and fertilizers may drain from
    farmlands or they may find their way into sewage that is pumped from
    local towns and cities






    One of the most damaging forms of water pollution is from oil. Oil spills

    from ships and oil tankers at sea cause devastating water pollution and
    harm wildlife. These events receive lots of attention on television and
    from environmental groups, however these spills only represent a small
    .percentage of the total amount of oil that contaminates our water
    ,Tankers dump oil into oceans as part of their routine cleaning
    refineries pump oily wastewater into surface water and oil from city
    .streets are washed into storm drains that eventually enter our waterways



    When people rinse materials down the drain, flush their toilets or do a

    load of wash, the wastewater usually goes to sewage treatment plants to
    be purified. These plants will then remove dirt, biodegradable materials
    such as food waste and a number of other pollutants before the water
    reaches our waterways. However, most treatment plants can't remove all of
    the chemicals that are used in products such as paint thinners or
    phosphates that are used in many detergents and these substances end up
    passing right through the sewage treatment plant untreated. Other sources
    of water pollution include the dirt and litter from the streets that are
    washed into storm drains. In most areas these storm drains empty into
    ,underground pipes that will eventually dump directly into our lakes
    .rivers and oceans




    Land/Soil Pollution

    تلوث التربه



    Disposing of acids, pesticides, chemicals, radioactive waste, sewage

    sludge and other types of hazardous waste on our lands has become one of
    the most dangerous pollution and waste problem. Most of this hazardous
    waste is sent to landfill sites or burned in incinerators which in turn
    create toxic runoff and air pollution. In the past this hazardous waste
    has also been buried deep underground. However, because of poor storage
    methods older landfills and underground storage sites may end up leaking
    .hazardous materials into surrounding soils and sometimes groundwater
    This results in contaminated lands that pose a threat to people living in
    .the area as well as to wildlife and the environment






    Not only should we be concerned about the leaking of these wastes but we

    should also be concerned about the amount of waste that is being disposed
    of in these landfill sites. Per person, Canadians throw away more garbage
    than any other country. The more garbage we produce the more resources
    and space we will need to dispose of it. This is a problem because we are
    running out of places to locate landfill sites. Nobody wants to live next
    to a dumpsite but what do we do with all that garbage? We can learn to
    .reduce the amount of garbage that we create



    Even more disturbing is what we are actually throwing out and sending to

    these dumpsites. There is more paper than any other material found in
    landfills. Over 38% of all materials a landfill is paper. The next
    highest is ****l, glass and plastics at 34%. Finally, about 15% of the
    material disposed of in dumps are food and yard waste. All of these
    materials can and should be kept out of our landfills. If you add up all
    these numbers, over 87% of what makes up a landfill site could have been
    recycled, reused or composted. But instead we are polluting our land by
    throwing them away as garbage and using up our natural resources
    .(unnecessarily (i.e. cutting down more trees to make more paper






    [/TABLE1]
    الملفات المرفقة الملفات المرفقة

  2. - صفحة جديدة 1

  3. #2
    عضو مميز الصورة الرمزية moon
    تاريخ التسجيل
    23 / 01 / 2008
    المشاركات
    23,480
    مقالات المدونة
    5
    معدل تقييم المستوى
    1052

    افتراضي رد: بحث متكامل عن التلوث.. Pollution مدعوم بالصور والعروض

    [TABLE1="width:70%;background-color:silver;"]

    Noise Pollution
    التلوث الضوضائي



    Modern towns and cities are noisy. Within these cities there is a
    .constant rumble from cars, trucks, buses, machines, alarms and sirens
    Even loud music is a form of noise pollution. Some communities are also
    .located in noisy areas such as airports or near a train track/station
    .Other people have to work in noisy factories

    When these vehicles, horns, radios, heavy machinery, make loud and
    continuing sounds they are producing noise pollution. We don't think of
    noise as being able to hurt us but it does. Noise can cause damage to our
    hearing and lead to other health problems, especially if you are exposed
    .to loud noises for long periods of time


    ?Who Creates Pollution
    من يسبب التلوث؟

    ?Who do you think creates all these different types of pollution
    Pollution is created by industries, offices, schools, farms, cars, and
    .even our homes

    There are many things in our daily lives that we use to make our lives
    easier, safer and more comfortable - however these things also create
    وpollution and waste that are bad for the environment. Cars, fast food
    وnewspapers, air conditioning, household appliances (i.e. microwaves
    hairdryers) and many other items all result in pollution. Pollution not
    only happens in your home but also on your street. Garbage spills from
    .garbage cans and exhaust fumes from cars, trucks, buses


    ?What is Pollution Prevention
    ما هي موانع التلوث

    Usually, once pollution is created it is here to stay. When we try to
    clean up pollution after it has already been created, sometimes we just
    end up shifting it from one place to another (i.e. from land to air or to
    .(water

    Therefore, instead of trying to clean up pollution or wastes after it has
    been created, pollution prevention looks at ways of reducing the creation
    of pollution and waste by changing the way we buy, make or discard of
    things. Pollution prevention aims to identify activities or areas in
    processes where waste can be avoided such as: where less toxic or less
    hazardous materials can be substituted for the more toxic ones; and where
    .energy, water or other raw materials can be saved or conserved

    The pollution prevention approach tries to focus on reducing pollution at
    .(the source (i.e. where it is first created


    Pollution costs money. In the past, industries and businesses really only
    looked at the cost of treating and disposing of pollution. But pollution
    .is not only expensive to treat; it also takes energy and resources (i.e
    labour, time) to create it in the first place. Therefore, in the long
    run, it costs less to avoid creating waste or pollutants from the start
    .than trying to clean up, treat or dispose of it


    ?What is not considered Pollution Prevention
    ما هي الاشياء التي لا تعتبر موانع للتلوث؟

    In the past, when pollution was created people looked for ways to control
    the pollution after it was created. Treating wastewater, filtering air
    emissions and using landfills for solid waste are all methods of
    controlling pollution after it is generated. Controlling or treating
    pollution is not considered to be pollution prevention. For example when
    wastewater from a factory or a home is treated, the water ends up cleaner
    but the factory is then left with sludge made up of all the materials
    that were filtered out of the water and which needs to be disposed of on
    land. In other words, pollution control or treatment often moves the
    .pollution from one type of medium (i.e. air, water, land) to another


    :Examples of activities that are not pollution prevention include

    Any kind of waste treatment or pollution control *

    . Recycling that takes place outside of the building or industry *
    Although recycling does help reduce the amount of garbage sent for
    disposal it does not prevent pollution. Energy and money still need to
    be spent to recycle the materials (i.e. melting plastic or glass into
    .( new objects


    Transferring hazards or toxics from one medium to another (i.e. from *
    (air to water or land to air


    Diluting or making something less toxic or hazardous by adding water *
    or another substance

    These all work to control or manage the pollution once it has already
    been created. Remember - pollution prevention wants to stop the pollution
    .or waste from ever being produced


    ?Why Prevent Pollution
    لماذا نمنع التلوث؟

    Why should we prevent pollution? When we prevent pollution, we save
    energy, conserve resources (such as trees needed to make paper), reduce
    pollutants and waste, and lessen exposure to harmful materials which
    .means we often save money and have a healthier place to work or live

    :Pollution prevention creates many benefits, including

    Minimizing or avoiding the creation of hazardous wastes or substances *
    released into the environment


    Reducing the dangers to our health - less exposure to harmful *
    substances and it helps create cleaner air and water


    .Speeding up the reduction or elimination of pollutants i.e *
    industries and consumers will look into using more "environmentally
    "friendly substances


    Promoting the development of new technologies, machines and materials *
    that reduce the amount of pollution produced


    Encouraging the use of energy, resources, materials more efficiently *


    Reducing the amount of money spent on investigating and charging *
    polluters that break various environmental laws


    Avoiding costly clean ups after spills or accidents involving *
    hazardous substances


    Promoting a more competitive economy *


    ?Who Can Prevent Pollution
    من يستطيع منع التلوث؟

    Pollution prevention, and the benefits that result from it, do not just
    happen. It requires some planning and a lot of commitment from everyone
    involved. Pollution prevention is not something that is done only at
    factories or industries. Everyone should consider how much waste is
    .created from what they use, buy and eventually throw away

    .Most people don't need to be convinced that pollution is a problem
    Everyone, from individuals to businesses to government has a role to play
    .in finding solutions to pollution and other environmental problems

    As more people speak out, more businesses will listen and start to do
    their part in preventing pollution. Many companies have already developed
    new processes, equipment and practices that are helping to reduce the
    amount of chemicals they are using and emissions that they are releasing
    to the environment. As well, Environment Canada has been working with
    businesses, industries and communities to develop projects that will help
    .decrease the amount of pollution that is being created


    However, businesses and governments are not the only sector that is
    responding to the growing concern. Many people have jobs that involve
    :looking for ways to prevent pollution, including

    Scientists *
    Teachers *
    Factory workers and managers *
    Engineers *


    ?How Can We Prevent Pollution
    كيف نستطيع منع التلوث؟


    Preventing AIR Pollution
    منع تلوث الهواء

    We can help to reduce and prevent air pollution by using less electricity
    .and gasoline


    Walk, cycle or use public transportation *
    Give friends that are going to the same place as you a ride (i.e. car *
    ( pooling
    Turn off lights, TV, radio and other electrical items when not in use *
    Use low-energy or energy-saving light bulbs *
    (Avoid using gas powered machinery (i.e. lawn mowers *
    Fill up the car with cleaner fuels *
    Keep your car tuned and schedule routine maintenance checks *
    !Turn off your engine when waiting - do not idle *


    Reduce Engine Idling
    When cars, trucks and buses are left running while parked, they produce
    unnecessary pollution that contributes to climate change and smog, which
    affects our health. A recent study in Toronto found that more than a
    third of parents or caregivers waiting to pick up their children sit in
    .their vehicles with the engines idling



    Preventing WATER Pollution
    منع تلوث المياه

    There are a number of ways that you can help prevent water pollution
    around your house, school, work or neighbourhood. Here are just some of
    :the ideas


    Install "low-flow" shower heads and faucets to reduce water use *
    Only run the dishwasher when it is full and use dishwasher soap that *
    does not contain phosphates
    Disconnect the down spout from your eaves trough if it discharges *
    into a sewer system
    Install a rain barrel to collect rain for watering plants and your *
    .lawn. Share your rainwater with neighbours
    Plant plants that can grow with low moisture content in soils and do *
    not need to be watered very often
    Take your car to a car wash facility rather than washing it in your *
    driveway or on the street
    Don't pour chemicals down the storm sewer *
    Buy biodegradable or environmentally friendly soap and other cleaning *
    supplies
    Fix taps, faucets and pipes that are leaking *



    Preventing LAND Pollution
    منع تلوث التربه

    !The best thing we can all do to cut down on waste is to make less of it
    When we reduce the amount of waste that we produce this will reduce
    amount of garbage that we have to dispose in landfills. Some ideas on
    :reducing land pollution include


    Try to purchase materials that are sold in reusable containers *
    Look for products that have very little packaging to throw away *
    Buy biodegradable products *
    Buy in bulk to reduce packaging *
    .Use safer alternatives to pesticides *
    !Reduce, Reuse, Recycle *
    Buy organically grown fruits and vegetable. (i.e. those that are *
    (grown with natural fertilizers such as composted manure or compost
    Take old clothing, furniture and appliances in good working condition *
    to collection depots and centres



    Preventing NOISE Pollution
    منع التلوث الضوضائي/الضجيج

    .Reducing noise pollution is the easiest one of all

    Keep the volume of music and the television down at home so you don't *
    disturb other family members or neighbours
    Don't slam doors *
    Don't thunder up and down stairs - try to walk quietly *


    At the end, pollution prevention is not difficult. Opportunities can be
    found at home, when you shop at the store, when you go to school or when
    you go to work. You can take steps every day to help stop pollution. Once
    ,you get in the habit of thinking about the pollution you are creating
    .you will soon recognize more and more opportunities for preventing it

    Challenge yourself to find a new way to reduce pollution each week or
    improve on something you have already started, like riding your bike more
    .often, or walking to school every day instead of once or twice a week

    ==================================================
    ==================================================


    مقتطفات

    .. How to Prevent Pollution in Everyday Life
    كيف نمنع التلوث في حياتنا اليوميه..



    الصور بالحجم الطبيعي مرفقه..






    مقالات قصيره مرفقه..
    ..Environment pollution
    تلوث البيئه..

    ..How To Prevent Pollution
    كيفية منع التلوث..

    وفقك الله..

    [/TABLE1]
    الملفات المرفقة الملفات المرفقة

  4. #3
    عضو مميز الصورة الرمزية moon
    تاريخ التسجيل
    23 / 01 / 2008
    المشاركات
    23,480
    مقالات المدونة
    5
    معدل تقييم المستوى
    1052

    افتراضي رد: بحث متكامل عن التلوث.. Pollution مدعوم بالصور والعروض

    [TABLE1="width:70%;background-color:silver;"]

    وهذه مجموعة من الصور :







    هذي عن تلوث المصانع





    وهذي عن تلوث المياة








    تلوث الهواء


















    اتمنى لكم الفائدة

    [/TABLE1]

  5. #4
    عضو نشيط الصورة الرمزية آدمية تائبة
    تاريخ التسجيل
    23 / 12 / 2008
    المشاركات
    1,767
    معدل تقييم المستوى
    103

    افتراضي رد: بحث متكامل عن التلوث.. Pollution مدعوم بالصور والعروض


  6. #5
    عضو مميز الصورة الرمزية moon
    تاريخ التسجيل
    23 / 01 / 2008
    المشاركات
    23,480
    مقالات المدونة
    5
    معدل تقييم المستوى
    1052

    افتراضي رد: بحث متكامل عن التلوث.. Pollution مدعوم بالصور والعروض

    {حياك اخوي .}
    يعطيكـ العافيه ع المرور الطيب..
    آرَقْ آلتَحآيآ..}
    :::::::::::: ( ) ::::

  7. #6
    عضو ممـلكـة الـمعـلـم
    تاريخ التسجيل
    14 / 10 / 2008
    المشاركات
    1
    معدل تقييم المستوى
    0

    افتراضي رد: بحث متكامل عن التلوث.. Pollution مدعوم بالصور والعروض

    بارك الله فيك على هذا العطاء الكبير.

    من مواضيع العز عنوانى :


    صفحة 1 من 2 12 الأخيرةالأخيرة

    معلومات الموضوع

    الأعضاء الذين يشاهدون هذا الموضوع

    الذين يشاهدون الموضوع الآن: 1 (0 من الأعضاء و 1 زائر)

    المواضيع المتشابهه

    1. (حائط الصد) في كرة الطائرة موضوع مدعوم بالصور ~
      بواسطة أم اللولو في المنتدى ركن التربية البدنية
      مشاركات: 3
      آخر مشاركة: 09 / 07 / 2010, 19 : 04 PM
    2. البرق والرعد مدعوم بالصور
      بواسطة السموعي الاول في المنتدى ركن الدراسات الإجتماعية والوطنية ( العام )
      مشاركات: 3
      آخر مشاركة: 10 / 03 / 2010, 21 : 05 PM
    3. بحث عن التلوث
      بواسطة roza2 في المنتدى ركن العلوم الطبيعيه وفروعها ( العام )
      مشاركات: 6
      آخر مشاركة: 25 / 02 / 2010, 50 : 06 PM
    4. الجلطة الدماغية والشلل النصفي - مدعوم بالصور -
      بواسطة أم اللولو في المنتدى ركن التوعية الصحية
      مشاركات: 4
      آخر مشاركة: 17 / 02 / 2010, 57 : 12 PM

    المفضلات

    المفضلات

    ضوابط المشاركة

    • لا تستطيع إضافة مواضيع جديدة
    • لا تستطيع الرد على المواضيع
    • لا تستطيع إرفاق ملفات
    • لا تستطيع تعديل مشاركاتك
    •  
    تابعونا عبر تويتر
    RSS RSS 2.0 XML MAP HTML

    فتح في صفحة مستقلة

    Search Engine Optimization by vBSEO 3.6.1