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Water Use & Management.

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Presentation on theme: "Water Use & Management."— Presentation transcript:

1 Water Use & Management

2 Global Water Use Country Per Capita Withdrawal m3/p/y Domestic Use
Industrial Agriculture United States 1,600 13 46 41 Afghanistan 779 2 98 United Kingdom 197 22 75 3 Maldives 9 Turkmenistan 5,104 1 Source: the Pacific Institute

3 Global Water Use In many places of the world, a staggering 30 to 40% of water or more goes unaccounted for due to water leakages in pipes and canals and illegal tapping. Source: UNESCO

4 Global Water Use In 2000, more than 1 billion urban dwellers (nearly a third of all urban dwellers worldwide) lived in slums. A slum dweller may only have 5 to 10 litres per day at his or her disposal. A middle- or high-income household in the same city, however, may use some 50 to 150 litres per day, if not more. Source: UNESCO

5 Global Water Use Groundwater systems globally provide 25 to 40% of the world's drinking water. Source: UNESCO

6 Global Water Use In order to ensure our basic needs, every individual needs 20 to 50 litres of water free from harmful contaminants each and every day. Source: UNESCO

7 Water Treatment Access to safe water and sanitation is a fundamental requirement for basic human well-being

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10 Freshwater use: country profiles

11 Total population: access to sanitation

12 Water Scarcity Index

13 % of Population With Access to Sanitation in 2002
Country Urban Rural Total United States 100 Afghanistan 16 5 8 China 69 29 44 Iraq 95 48 80 Haiti 52 23 34 Source: WHO, UNEP

14 Access to Sanitation 13% of the global population (0.9 billion people) used toilets or latrines where excreta were disposed of in situ. Source: WHO, UNEP

15 Access to Sanitation Poor sanitation is linked to transmission of diseases such as cholera, diarrhoea, dysentery, hepatitis A, typhoid and polio. Source: WHO, UNEP

16 Access to Sanitation 2.3 billion people still do not have basic sanitation facilities such as toilets or latrines. Of these, 892 million still defecate in the open, for example in street gutters, behind bushes or into open bodies of water. Source: WHO, UNEP

17 Access to Sanitation Inadequate sanitation is estimated to cause diarrhoeal deaths annually and is a major factor in several neglected tropical diseases, including intestinal worms, schistosomiasis, and trachoma. Poor sanitation also contributes to malnutrition. Source: WHO, UNEP

18 Access to Sanitation The UN suggests that each person needs litres of safe freshwater a day to ensure their basic needs for drinking, cooking and cleaning. Source: WHO, UNEP

19 Access to Sanitation More than one in six people worldwide million - don't have access to this amount of safe freshwater. Source: WHO, UNEP

20 Access to Sanitation Globally, diarrhoea is the leading cause of illness and death, and 88 per cent of diarrhoeal deaths are due to a lack of access to sanitation facilities, together with inadequate availability of water for hygiene and unsafe drinking water. Source: WHO, UNEP

21 Access to Sanitation Today 2.5 billion people, including almost one billion children, live without even basic sanitation. Every 20 seconds, a child dies as a result of poor sanitation. That's 1.5 million preventable deaths each year. Source: WHO, UNEP

22 Access to Sanitation Today 2.5 billion people, including almost one billion children, live without even basic sanitation. Every 20 seconds, a child dies as a result of poor sanitation. That's 1.5 million preventable deaths each year. Source: WHO, UNEP

23 Potable Water Pathogens Water that is safe for human consumption
Organisms that can cause illness or disease

24 Drinking Water Treatment

25 Septic Systems

26 Wastewater Treatment

27 Desalinization The process of converting salt water to fresh water
Expensive Access

28 Reverse Osmosis

29 Distillation

30 Water and disease Every day, 2 million tons of human waste are disposed of in water courses.

31 Water and disease Cholera
diarrheal illness caused by infection of the intestine with the bacterium Vibrio cholerae. Can be fatal if untreated

32 Water and disease Cholera Cryptosporidium Dengue Fever
Guinea Worm Disease Japanese Encephalitis River Blindness Schistosomiasis

33 Your Homework: Choose one of the diseases from the previous page and answer the following questions: What causes this disease? How is this disease spread? How does this disease affect people? How many people die from this disease each year?


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