الأحد، 17 أكتوبر 2010

Air pollution -Final Draft-

         Air pollution  in Egypt is a serious problem, which increased in a terrible way in the last 10 years.Air pollutionoccurs when the air contains gases, dust, fumes or odor in harmful amounts. That is, amounts which could be harmful to the health.  There are  numerous sources of air pollution in Egypt,  However, the formation and levels of dust are more characteristic in Egypt than presently found in industrial countries . Some of the sources for these pollutants, such as industries, open-air waste burning and transportation, were also well known problems in most countries only 10 to 20 years ago, also the smog and mining operations.

       The important sources for this problem are the windblown dust from the arid areas suspended dust can be seen to be a major source air pollution  in Egypt. Another source of pollution is transportation which is considerd in my opinion the most dangerous source especially in the big cities like Cairo and Alexandria where we can see the traffic jam.
      Also carbon dioxied , is the main pollutant that is warming Earth. Though living things emit carbon dioxide when they breathe, carbon dioxide is widely considered to be a pollutant when associated with cars, planes, power plants, and other human activities that involve the burning of fossil fuels such as gasoline and natural gas. In the past 150 years, such activities have pumped enough carbon dioxide into the atmosphere to raise its levels higher than they have been for hundreds of thousands of years Because of the high technology of making machines, searching for petrol, metals or valuable stones.
     All of these sources causes Smog hanging over cities which the most familiar and obvious form of air pollution. But there are different kinds of pollution—some visible, some invisible—that contribute to global warming. Generally any substance that people introduce into the atmosphere that has damaging effects on living things and the environment is considered air pollution. Air pollution affects badly on human health as it causes cancer and a lot of serious diseases. Air pollution causes the harm of ozone which leading to climate change and melting of ice.
            Air pollution is a great dangerous for the whole world so governments are taking measures to limit emissions of carbon dioxide and other greenhouse gases and they did an agreement between countries that they will cut back on carbon dioxide emissions. And I suggest an idea which is to put taxes on carbon emissions or higher taxes on gasoline, so that people and companies will have greater incentives to conserve energy and pollute less.
          
          Finally air pollution is a great problem that we should not underestimate . The government should put strict penalties on  factories that pollute the air because human health is priceless


 

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