Discussion of Water Pollution


Apr. 28, 2009

Careful Observation ,Careful Thinking

Do you know where they are from ?


  • Trash into the water , industrial waste water and domestic waste water discharged into the water ,caused water pollution .
    Apr. 27, 2009

     

  • Waste water discharged into the clean water ,and soil erosion leading to water pollution .
    Apr. 27, 2009

     

  • I know from books of major water pollution in several major sources of pollution are :(1) of untreated industrial effluents and emissions ;(2)and the emissions of untreated sewage ; (3)large-scale use of chemical fertilizers , pestiecides , herbicides sewage farms ;(4)dumped at the river’s industrial waste and garbage ; (5)soil erosion ; (6)of mine waste water.
    Apr. 27, 2009

     

  • I know from the TV many of the water pollution sources is emitted from the factory there are many costs to the clean water flow , Soil erosion leading to water pollution
    Apr. 27, 2009

     

  • I know from a book : it is now to the amount of sewage water in a number of one billion tons of domestic sewage , which dealt with less than 10% of the sewage ,pesticides , fertilizers after application ; the majority of residues into the soil and with the rain or irrigation water into the water ,causing water pollution .Human activities cause a lot of industry , agriculture and waste into the water of life , so that water has been contaminated .At present , more than 4200 billion cubic meters of sewage around the world each year into rivers and lakes ,pollution of the 5.5 trillion cubic meters of fresh water , which is equivalent to the total global run-off foe more than 14% .
    Apr. 27, 2009

     

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Apr. 29, 2009

Information about the Water Pollution.