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Water Pollution Anthropogenic ( man made) causes Std IX-X
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Some Pollutants Sewage Solid waste Heavy metals
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What do you think this image depicts? Source: http://desip.igc.org/populationmaps.html accessed November 2008http://desip.igc.org/populationmaps.html
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WATER STRESS Every item that we use needs water for production Domestic bathing, flushing, washing, cooking, drinking… Agriculture People require food to eat Industry Increase demand for goods Increase in Population Power water evaporation from reservoirs of large hydro power projects
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'It's not just excess consumption. Man is creating further water stress by polluting fresh water sources.'
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Run off from agricultural fields Air pollutants dissolve in rainwater Untreated industrial wastes WATER POLLUTION Tourism and religion
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Domestic waste water generation and treatment ( in million litres per day – MLD ) State / UTWastewater generation Wastewater treatment Untreated wastewater Andaman & Nicobar808 Andhra Pradesh12712081063 Assam2220 Bihar & Jharkhand13631351228 Chandigarh27291181 Delhi27001927773 Gujarat17097011008 Goa200 Haryana33030327 Himachal Pradesh13310 Karnataka1036387649 Source: Springs of Life, published by World Water Institute
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Domestic waste water generation and treatment ( in million litres per day – MLD ) State / UTWastewater generation Wastewater treatment Untreated wastewater Kerala4280 Madhya Pradesh & Chattisgarh1159227932 Maharashtra46924994193 Manipur240 Meghalaya300 Mizoram404 Nagaland200 Orissa3740 Pondicherry360 Punjab6160615 Source: Springs of Life, published by World Water Institute
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Domestic waste water generation and treatment ( in million litres per day – MLD ) State / UTWastewater generation Wastewater treatment Untreated wastewater Rajasthan1055271028 Tamil Nadu1094290804 Tripura220 Uttar Pradesh & Uttaracnchal 22927721520 West Bengal21133721741 India229035942 16961 Source: Springs of Life, published by World Water Institute
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More food required to feed the growing millions' Increase in Population Converting forests into croplands Fewer Forests Water Pollution Fertilizers and pesticides
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Fewer forests Topsoil washed out into freshwater sources and reduced recharge of water into the ground
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Agriculture Fertilizers and pesticides easily dissolve in water. They enter surface water sources through rainwater and irrigation runoff and also percolate into the ground to contaminate groundwater sources. World agricultural area under irrigation Global fertilizer consumption Source: http://maps.grida.no/go/graphic/global_fertilizer_consumption, cartographer: Philippe Rekacewicz, UNEP/GRID-Arendal http://maps.grida.no/go/graphic/global_fertilizer_consumption Source: http://www.earthpolicy.org/Updates/2008/ Update72_data.htm#fig11
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Overgrazing – soil washed out into freshwater sources Animal bathing in freshwater sources Animal faeces pollutes water and soil Water pollution caused by food processing industries Increased Demand for Animal Products
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Clothes we wear – dyes and bleaches Paper, paper, paper everywhere Leather bags and shoes Batteries Metal plating Paints Plastics Pharmaceuticals Let’s look around us ….. Increase demand for goods Increase in Population More Industrialisation INCREASED INDUSTRIALISATION All these industries are highly water polluting
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Increased mining for Raw Materials The Damodar river travels through 6 coal fields, 183 coal mines, 28 iron ore mines, 33 limestone mines, 5 copper ore mines, 84 mica mines and Numerous graphite, silver and uranium extracting units. ‘ Water in this river is polluted beyond repair ’ Mining is a highly polluting industry Increased industrialization results in
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Increased solid waste generation Lifestyle changes Use and throw culture Higher aspirations Change in packaging Disregard for natural resources Inadequate waste management systems
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Waste dumped in surface water bodies Waste dumped in open landfills – toxic materials leach into soil and groundwater Waste burnt – air pollutants dissolve in rainwater and pollute surface water sources or seep into ground water aquifers Increased solid waste generation water pollution
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Lakes, tanks, and ponds being destroyed. Land filled for construction purposes. Unsustainable extraction of groundwater in urban areas, affecting groundwater quality. Receive sewage that cannot be handled by sewage treatment plants. Disposal of solid and liquid wastes above or into groundwater aquifers. Additional stress in urban areas
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Tourism and water pollution Hotels Laundry – detergents, bleach, hot water Landscaping – fertilizers, pesticides Cleaning and washing Waste generation Kitchen Travelers Sanitation Bathing in rivers Waste generation (use and throw) Most tourism is close to water sources and areas of rich biodiversity
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Bathing in holy rivers More than10 million people bathe in the Ganga daily! During the annual Kumbh Mela, more than a million people take a dip in Allahabad alone! Religion and Water pollution Dead bodies Prayer materials Idol immersion Paints contain many heavy metals
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Conflicts and Water Pollution Production of arms Death toll Bombs – heavy metals Municipal services (water supply, sanitation, waste mgmt) don’t function in areas of conflict
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“ If you had a bottle of life-preserving fluid on which your life depended, would you pour into it all your sewage and rubbish, along with any other poisonous chemicals you could find? And yet, that is exactly what we are doing to our water supply – all over the world.” Source: http://www.unep.org/geo2000/pacha/fresh/fresh.htm This is what a young person like you has to say: Does Man Pollute Water?
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Not just Fresh Water, We are polluting our Oceans too
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Source: http://www.unep.org/dewa/assessments/ecosystems/water/vitalwater/38.htm accessed December 2008http://www.unep.org/dewa/assessments/ecosystems/water/vitalwater/38.htm
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Source: http://www.unep.org/dewa/assessments/ecosystems/water/vitalwater/39.htm accessed December 2008http://www.unep.org/dewa/assessments/ecosystems/water/vitalwater/39.htm
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A game to check how much you have learnt Play LINK TO THE GAME
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Divide the class into 5 teams. Team A selects 2 people who will guess the answer. These 2 people turn their face to the wall or go out of the room, so that they can’t see the clue. Play
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Team A has to act out the clue for the 2 guessers. Either all members of Team A can act it out (very boisterous, but all children are involved) or a representative is selected to do the acting. The other members of Team A (and the rest of the class) see the clue.
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If the guessers got the right answer in 30 secs, they get 5 points If the guessers get the right answer in 60 secs, they get 3 points Otherwise The chance then goes to Team B and so on. Rules: No mouthing of words
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Round 1 Team A – Agriculture Team B – Domestic use Team C – Reservoir Team D – Population Team E – Industrial production
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Team A – Energy Demand Team B – Over exploitation Team C – Urbanization Team D – Lifestyle Team E – Lake destruction Round 2
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Round 3 Team A – Fertilizer runoff Team B – Sewage disposal Team C – Industrial waste water Team D – Pesticides Team E – Domestic waste water
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Team A – Idol immersion Team B – Tourism Team C – mining Team D – Conflicts Team E – Animal products Round 4
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