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Agronomy 342 Presentation


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Agronomy 342 Presentation

  1. 1. Water Quality and Sanitation in Developing Countries<br />By, Kurt Pisarik<br />10-9-09<br />Agron. 342<br />
  2. 2. Background<br />70% earth is covered by water. 2.5% is F.W. Less than 1% of F.W. is accessible. <br />1.2 billion people without sanitary water (globally)<br />Ashok GadgilLawrence Berkeley National Laboratory<br />
  3. 3. Water Distribution<br />Agriculture (68%): irrigation and livestock.<br />Industrial (24%): technology and cooling systems.<br />Households (8%): washing, drinking, cleaning.<br />Mark W. Rosegrant<br />XimingCai<br />Sarah A. Cline<br />International Food Policy Research Institute<br />International Water Management Institute<br />
  4. 4. Water Pollution<br />Agriculture: salinization, pesticides and fertilizers.<br />Industrial: trash, chemicals and toxic waste<br />Household: raw sewageand trash<br />
  5. 5. Effects of Pollution <br />Bacteria: malaria and diarrhea. <br /> -Diarrhea is accountable for at least 400 deaths of children under the age of 5 every hour. <br /> -Malaria and Diarrhea are usually the main reason for malnutrition in children in the developing world.<br />Viruses<br />Parasites: tapeworm, mosquito’s etc. <br />
  6. 6. Example of water pollution<br />Mexico City: They lack proper sewage systems, and disposal. Drain their sewage into fields of crops. <br />Also Mexico City is a “sinking” city because it pumps out more water from the aquifer than it can be replenished. (it sinks about 2 inches/yr) Causing self-destruction of own city.<br />Journey to Planet Earth: “The Urban Explosion” video by PBS<br />
  7. 7. Why isn’t it being fixed?<br />Government’s can’t afford or isn’t knowledgeable about the new technology in water systems like; sewer systems, water filters, pumping stations etc. <br />Bad government infrastructure. <br />Karl Marx’s “Golden Rule”<br />
  8. 8. Bibliography<br />Gadgil, Ashok. Drinking Water in Developing Countries. Annual Reviews. 1998<br />Rosegrant, Mark W. , XimingCai, and Sarah A. Cline. World Water and Food to 2025 Dealing with Scarcity. International Water Management Institute.<br />“The Urban Explosion.” Journey to Planet Earth. PBS <br />