WAU

Water

Water Around Us WAUErasmus+ Agrupamento de Escolas Jos Sanches e S. Vicente da BeiraWork done by:Catarina BaptistaIns LopesRita Albano

Teachers:Csar LouroIsabel VieiraJos Duarte

The importance of water for life on EarthOften it is not given proper value to water, but without it, human life would not be possible. Although it seems that there is a lot of water on our planet only 3% is fresh water. So, knowing that the world population is 7 billion people and it will continue to grow, it is important that the man use rationally and cleverly the water so that future generations may also enjoy this precious resource.

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Water distribution

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Water scarcity

Currently 18% of the world population doesn't have access to minimum acceptable amount of potable water(Source: ONU)

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water crisis

1 in each 6 people dont have access to potable water

each year 2 million people die (diseases)

Water scarcity

In 2025 2/3 of the world population (5,5 billion people) wont have access to potable water if nothing is done to avoid water scarcity.

In 2050 only 1/4 of the world population will have water access to satisfy (fulfill) their basic needs

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Amount of water available per capita per year

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Comparing the amount of potable water available per person per day

CanadaUntil 600 litersUSA350 litersJapan350 liters Europe200 litersBrasil187 litersAfricaUntil 20 liters50 liters

Average ideal according to WHO (world health organization)7

Bad utilization of water60 liters in each 100 liters of water are used incorrectly 25 from the 27 big lakes from China are polluted because of industrial waste, domestic sewage and fertilizersDaily it is estimated that are wasted, in the US alone, 26.5 billion liters of potable water by leaking pipes.

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Use of water in agriculture

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Over the past decades the trend in agricultural water use has increased due to the growing use of water for irrigation. However, during the recent years in various countries growth rate has slowed down.Although the water used in agriculture does not require the same quality standards as the human consumption, the huge amounts required for species or to increase revenues and other crops, has led to the need to apply the most effective methods in use.As enhancing food production water it is also imperative on cattle breeding and treatment of various forms of agriculture and poultry farming.

Use of water in industry

10Industry and agriculture, together are responsible for over 80% of water consumption. If a house with four residents needs water just imagine a company that produces on a large scale and still need to keep the consumption of each employee.The use of water in industrial processes is made from the incorporation of the feature in the products to cleaning supplies, equipment and facilities, as well as use in cooling systems and steam generation.

The use of water

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How to save water?There are numerous measures which, if taken, will reduce a lot water consumption; among the main we include:

conserve water avoiding waste;basic sanitation that is, treatment of domestic wastewater;treatment of industrial polluting liquids so they can be reused;irrigation projects avoiding reckless consumption;protection of the potential of regions of the river sources.

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Marateca DamDesigned to provide drinking water to the city of Castelo Branco and some parishes of the district, came to become the natural 'home' to many species of animal and plant kingdom who found here a safe place to ensure their survival. It also became a place of recreation and leisure for the population.13

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Webgraphyhttp://www.fagar.pt/index.php?option=com_content&view=article&id=52&Itemid=76http://www.pacificwater.org/pages.cfm/water-services/water-demand-management/water-distribution/?printerfriendly=truehttp://planetasustentavel.abril.com.br/download/stand2-painel5-agua-por-pessoa2.pdfhttp://sindicacau.blogspot.pt/2010/09/o-mundo-com-sede.htmlhttp://www.suapesquisa.com/ecologiasaude/importancia_agua.htmhttp://www.eea.europa.eu/data-and-maps/figures/annual-water-availability-per-capita-by-country-2001http://www.trisoft.com.br/blog/consumo-consciente-da-agua/http://www.administradores.com.br/artigos/cotidiano/as-consequencias-da-escassez-de-agua/84522/http://br.monografias.com/trabalhos3/as-utilidades-da-agua/as-utilidades-da-agua.shtml

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