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  • Publicado : 12 de noviembre de 2010
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Main Pollutants of Water
CAUSES OF POLLUTION
 
 
     Many causes of pollution including sewage and fertilizers contain nutrients such as nitrates and phosphates.  In excess levels, nutrientsover stimulate the growth of aquatic plants and algae.  Excessive growth of these types of organisms consequently clogs our waterways, use up dissolved oxygen as they decompose, and block light to deeperwaters. This, in turn, proves very harmful to aquatic organisms as it affects the respiration ability or fish and other invertebrates that reside in water.
     Pollution is also caused when siltand other suspended solids, such as soil, construction and logging sites, urban areas, and eroded river banks when it rains.  When these sediments enter various bodies of water, fish respirationbecomes impaired, plant productivity and water depth become reduced, and aquatic organisms and their environments become suffocated.
Waste disposal has always been a chronic problem, not only because ofthe quantity of wastes, but because of its kind and the inadequate provision for a good system and technology to address the problem. There are many sources of water pollution but it is not the sourcethat is really causing the problem but the improper disposal of the pollutants. People resort to careless disposal because it is cheaper, more advantageous, or simply convenient to them.
When you aretaking a bath using your favorite shampoo or whenever you wash your laundry using no other than the best detergent in town, it is certain that before buying those products you really never considerasking yourself whether their contents can harm the environment or not. What mattered more was the scent and softness of your hair and the clean comfort of your clothes. Instead of finding anenvironmental friendly product, you simply chose convenience and your satisfaction of meeting your interests. However, if you will support environmental friendly products and become more conscientious of how...
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