Saturday 28 January 2012

Contamination of water

More than 60% of the country is covered with water. The average needs of at least 2.5 litres of water per day. We all know that life without water cannot even exists and is the day, the water dries up in the day, that planet Earth is nothing but a bare. Unfortunately, the water becomes more and more contaminated and the statistics show that the results of the contamination of water in 14 thousand deaths a day, and the consequences of the pollution of water are many.


Dirty water contains bacteria and viruses, which once had in our bodies, causes diseases such as diarrhea, botulism, typhoid, Cholera and other illnesses, which may even lead to death. In fact, water borne diseases are one of the main causes of death, particularly in the poorer countries, crowded urban areas and child population.


Contaminated water causes an excessive growth of algae in bodies of water will stop the sunlight reaching down to the lower layers of water; It inhibits photosynthesis of aquatic plants on the bottom of the river or Lake and cause death. If there are no more plants, there will be enough oxygen for aquatic organisms; In addition, excessive algae may block the gills, killing animals fish stocks. It's just one massive consequence among many.


There are different levels of contamination of water, such as natural, agricultural and industrial.


The pollution of natural water in the presence of certain substances in the water without the intervention of human behaviour.


Pollution from urban sources is the result of the use of water in households, commercial and service activities, which generates waste water containing fecal waste receiver returned, food waste and now with increased chemicals.


Agricultural pollution from the use of pesticides and fertilizers, which are transported, irrigation water, carrying salt consists of nitrogen, phosphorus; sulphur and chlorine organ trace elements reach the soil through leaching and contamination of groundwater.


Industrial pollution is one that creates the greatest impact, a wide range of materials and energy resources, which can provide water.


Other sources of anthropogenic pollution are the landfill of waste, urban and industrial and agricultural, contamination of the fuel, lubricants, antifreeze, asphalt and contamination of water leakages in pipes and tanks of the industrial nature of the tracks.


The oil spills caused by the spillage of oil into the sea, mainly as a result of accidents, such as the accident in the Gulf of Mexico oil spill from a platform, which dropped last year.

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