Presented by -
Group Number: 7
Roll no. : 08 ( Utsav Bhavsar)
Roll no. : 77 ( Ketul Shah)
Roll no. : 32 ( Pratik Gondalya)
• Water pollution is the contamination of
water bodies (e.g. lakes, rivers, oceans and
groundwater). Water pollution occurs when
pollutants are discharged directly or
indirectly into water bodies without adequate
treatment to remove harmful compounds.
• Water pollution affects plants and
organisms living in these bodies of water and
in almost all cases the effect is damaging not
only to individual species and populations,
but also to the natural biological
•97.2% of the Earth's water supply is salt water.
•Only 2.8% is fresh water!
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• Surface Water Pollution
• Ground Water Pollution
• Microbiological Pollution
• Oxygen Depletion Pollution
• Nutrient Pollution
• Suspended Matter Pollution
• Chemical Pollution
•Most visible form of pollution.
• We can see it floating on our waters in
•Trash from human consumption, such as water
bottles, plastics and other waste products, is
most often evident on water surfaces.
•Also comes from oil spills and gasoline
waste, which float on the surface and affect the
water and its inhabitants.
•This type of pollution is becoming more and
because it affects our drinking water and the
aquifers below the soil.
•Groundwater pollution is usually caused by
highly toxic chemicals and
• It leak through the ground to contaminate
and aquifers below the surface.
•Microbiological pollution is the natural form of
water pollution that is caused by microorganisms in
•Most of these organisms are harmless but some
bacteria, viruses, and protozoa can cause serious
diseases such as cholera and typhoid.
•This is a significant problem for people in third
world countries who have no clean drinking water
and/or facilities to cure the water.
•Many wastes are biodegradable, that is, they
can be broken down and used as food by
microorganisms like bacteria.
• Nutrients are usually found in wastewater and
• These can cause excess vegetation in the water
such as algae and weeds, using up the
oxygen in the water and hurting the
surrounding marine life and other organisms in
•This type of pollution occurs when
pollutants enter the water and do not mix in
with the water molecules.
•These suspended particles form fine silt on
the waterbed, harming the marine life by
taking away the nutrients and disturbing
•Metals and solvents flow out of factories and
into the water, polluting the water and
harming the wildlife.
• Pesticides from farms are like poison to the
wildlife in the water and kill and endanger
the aquatic life.
•If birds or humans eat these infected fish
the toxins are transferred to us and we
swallow these dangerous pesticides and
toxins, affecting our health.
• Metals and solvents flow out of factories and into the
water, polluting the water and harming the wildlife.
•We use water daily in our homes and industries, about 150
gallons per day per person in the United States.
•The water we use is taken from lakes and rivers, and from
•Water pollution also occurs when rain water runoff from
urban and industrial areas and from agricultural land.
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• Sewage, sludge, garbage, and even toxic pollutants are all
dumped into the water.
• Across the world, about half of all sewage is dumped into water
bodies in its original form.
• Even if sewage is treated, problems still arise. Treated sewage
forms sludge, which is sent out into the sea and dumped.
• Many cities and countries dump sewage out at sea. Often, they
place it not far from their own coastline, often killing all the sea
wildlife in the dumping area.
• In addition to sewage, chemicals dumped by industries and
governments are another major source of water pollution.
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Each year, plastic waste in water and coastal areas kills up to:
•100,000 marine mammals,
•1 million sea birds, and
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•rise in water from melting glaciers It's harmful for you
•Each year about 250,000 people are admitted to hospitals
or emergency rooms with pesticide poisoning
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• Toxic products like paints, automobile oil, polishes, and cleaning
products should be stored and disposed off properly.
• Dispose off your trash in a proper manner and try and
incorporate the recycling habit as far as possible.
• Refrain from throwing litter into streams, lakes, rivers, or seas. If
you do spot litter on beaches or in water systems, after
ascertaining that it is safe, collect them and dispose off them in
any nearby waste disposal system.
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• Try using natural fertilizers and pesticides as far as
• Automobile oil should be re-used as far as possible.
Also, it is important to keep your automobile well
maintained in order to prevent leakages of toxic fluids like
antifreeze and oil.
• Actively conserve water by turning the tap off when you
do not need running water, such as while brushing
teeth. Apart from preventing water shortages, it lessens
the amount of water that needs to be treated.
•Try using environmentally friendly household products
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