This PPT contains definition, types, signs, source and effects of water pollution. Prevention of water pollution and some data of water pollution of world. It contains pictures so high school grade student can also go through this PPT. Although It is for Bachelor's level.

1. WATER
POLLUTION
By: Yogesh Nimore and Jagrati Mehra
Course: B. Sc.(CS) II year
Submitted to: Dr. Neetu Parsai

2. Definition
Signs of water pollution
Source of water pollution
Types of water pollution
Effects of water pollution
Some data on water pollution
Prevention of water pollution
INDEX

3. Water pollution is the contamination of water
bodies (e.g. Lakes, rivers, oceans, aquifers and
groundwater).
Any change or modification in the physical,
chemical and biological properties of
consequence on living things is water pollution.
Water pollution is the second most imperative
environmental concern along with air pollution.
WHAT IS WATER POLLUTION?

4. 1. Bad taste of drinking water.
2. Offensive odour from river, lakes and oceans.
3. Decrease in number of fishes in fresh and sea water.
4. Oil and grease floating on the surface.
5. Unchecked growth of aquatic weeds.
SIGNS OF WATER POLLUTION

5. Pollutants get into water mainly by human being.
There are various classification of water pollution. The two chief
sources of water pollution can be seen as point (direct) and non-
point(indirect).
WHERE DO WATER POLLUTANTS COMES
FROM?

6. A single definable source of the pollution.
Point source pollution can be monitored and Regulated.
Examples –
 Discharges from a sewage treatment plant.
 Discharges from an factory.
 A city storm drain.
Point Source Pollution : -

7.  No one single source, but a wide range of sources.
 NPS are much more difficult to monitor and control.
Examples –
 The leaching out nitrogen compounds from agricultural land which has been fertilised.
 Runoff from urban areas.
Non-Point Source Pollution : -

8. There are many types of water pollution because water comes
from many sources. Here are few types of water pollution –
1. Nutrients pollution
2. Surface water pollution
3. Oxygen depleting
4. Ground water pollution
5. Microbiological
6. Suspended water
7. Chemical water pollution
8. Oil spillage
WHAT ARE THE TYPES OF WATER
POLLUTION?

9. Some waste water, fertilizers and
sewage contain high levels of
nutrients. If they end up in water
bodies, they encourage algae and
weed growth in the water.
Effect-
 It makes the water undrinkable.
Water organisms dies out of
oxygen starvation.
1. Nutrients Pollution : -

10. Surface water includes natural water found on the earth's surface,
like rivers ,lakes lagoons and oceans. hazardous substances coming
into contact with the surface water, dissolving or mixing physically with
the water called surface water pollution.
2. Surface Water Pollution : -

11. When too much
biodegradable matter end up
in water, it encourages more
microorganism growth and
they use up more oxygen in
the water. If oxygen is
depleted, aerobic organism
die, and anaerobic organism
grow more to produce
harmful toxins such as
ammonia and sulfides.
3. Oxygen Depleting

12. When human apply pesticides and chemical to soils, they are washed deep
into the ground by rain water. This gets to underground water, Causing pollution
underground.
This means when we dig wells and bore holes to get water from underground
we get polluted water.
4. Ground Water Pollution : -

13. Many liquid products are
stored in metal and steel
tubes underground. Other
sewage system run in
underground tubes. Overtime
they rust and begin to leak. If
that happens, they
contaminate the soils, and
the underground water.
Underground storage and tube leakages: -

14. Sometimes there is natural
pollution caused by micro-
organisms like viruses,
bacteria and protozoa. This
natural pollution can cause
fishes and other water life to
die. They can also cause
serious illness to humans who
drink from such waters.
5. Microbiological : -

15. Some pollutants do
not dissolve in water,.
This kind of material is
called particulate
matter. Some
suspended pollutants
later settle under the
water body. This can
harm and even kill
aquatic life that line at
the floor of water
bodies.
6. Suspended Matter :-

17. Many industries and farmers
work with chemicals that end up
in water. This is conmen with
point - source pollution. This
includes chemicals that are
used to control weeds, insects
and pests. Metals and solvents
from industries can pollute water
bodies. These are poisonous to
many forms of aquatic life and
many slow their development,
make them infertile and kill them.
7. Chemical Water Pollution : -

18. Chemical Water
Pollution Caused by Everyday
Detergents. Many
laundry detergents contain
approximately 35 percent to 75
percent phosphate salts.
Plaster of paris also pollutes
water. It degrades the quality
of water. It also make water
undrinkable.

19. Oil spills usually have
only a localized effect on
wildlife but can spread for
miles. The oil can cause
the death to many fish
and get stuck to feathers
of seabirds causing them
to lose their ability.
8. Oil Spillage :-

20. Mining is the process of crushing
the rock and extracting coal and
other minerals underground.
These elements when extracted in
the raw from contains harmful
chemicals and can increase the
amount of toxic elements when
mixed up with water may result in
health problems.
OTHER CAUSES OF WATER POLLUTION
1. Mining Activities :-

21. 2. Ocean and Marine Dumping :-
Again think of the rubbish we all
make each day. Paper waste,
food waste, plastic, rubber
metallic and aluminium waste. In
some countries, they are
deposited into the sea.

22. 1. Effect on aquatic animals : -
 The main problem caused by water
pollution is that kills life that
depends on these water bodies.
 Birds and mammies become coated
with oil.
 Dead fish, crabs, birds and sea
gulls, dolphins and many other
animals often wind up on beaches
killed by pollutants in their habitat
(living environment).
EFFECTS OF WATER POLLUTION

23. 2. Disruption of food chains :-
Pollutants such as lead and cadmium are eaten by
tiny animals. Later, these animals are consumed by fish and
shellfish, and the food chain continues to be disrupted at all.

24. 3. Diseases :-
Loss of memory power and
reduced mental sharpness.
Water borne diseases like
jaundice, hepatitis, gastroenteritis.
Reduce bone development and
muscular development.

25. 4. Destruction of Ecosystem
:-
Ecosystems can be
severely changed or
destroyed by water
pollution.
Many areas are now
being affected by
careless human
pollution, and this
pollution is coming back
to hurt human in many
ways.

26. Major problem of every human due to
water pollution

27. It has been suggested that it is the leading worldwide can cause of
deaths and diseases and that is accounts for the death of more than
14,000 people daily.
1. 200 turtles in australia‘s surround waters dies each year.
2. Water associated infectious diseases claim up to 3.2 million lives
each year, approximately, 6% of all deaths globally.
3. Each year, plastic waste in water and coastel areas kills up to
1,00,000 marine mammals.
1 million sea birds.
Countless fishes.
SOME DATA ON WATER POLLUTION

29. In 2010, about 12.7
million pounds of toxic
waste was dumped into
the Mississippi river,
In 1996, about 4.29
billion tons industrial
waste and sewage
was discharged into
the Yellow river,
China.
The mercury level 100 times
more than the legal amount in the Citarum
river, Indonesia. This river continuetly robbed
people with over 50,000 deaths annually.
USA

30. Never throw rubbish away anyhow.
Always look for the correct waste bin.
 If there is none around, please take it
home and put it in your dustbin.
PREVENTION OF WATER POLLUTION
Use water wisely.
Do not keep the top running when not
in use.
 Reduce the amount of water you can
use in washing and bathing.

31. Do not throw chemicals, oils,
paints and medicines down the
sink drain or the toilet.
Buy more environmentally
Safe cleaning liquids for use at
home and other public places.
Not to overuse pesticides and
fertilizers.
Start looking at options of
organic farming.
try to plant lots of trees and
flowers around your home

32. Participate in clean-up.
Join special society devoted
to the prevention of water
pollution.
Spread awareness.

34. Thank
You