About water pollution

1. WATER POLLUTION
CAUSES AND EFFECTS
R. AMRITHAA
20CH1005
EVS ASSINGNMENT

2. WHAT IS
WATER
POLLUTION:
• WATER POLLUTION IS THE CONTAMINATION
OF WATER BODIES (LIKE OCEANS, SEAS,
LAKES, RIVERS, AQUIFERS, AND
GROUNDWATER) USUALLY CAUSED DUE TO
HUMAN ACTIVITIES. WATER POLLUTION IS
ANY CHANGE, MINOR OR MAJOR IN THE
PHYSICAL, CHEMICAL OR BIOLOGICAL
PROPERTIES OF WATER THAT EVENTUALLY
LEADS TO A DETRIMENTAL CONSEQUENCE OF
ANY LIVING ORGANISM. DRINKING WATER,
CALLED POTABLE WATER, IS CONSIDERED
SAFE ENOUGH FOR HUMAN AND ANIMAL
CONSUMPTION.

3. SOURCES OF
WATER
INSECTICIDES AND
PESTICIDES
POLLUTION
Detergents
and Fertilizers
Industrial
effluents
Domestic
Waste

4. EFFECTS OF POLLUTION OF WATER
Diseases: In humans, drinking or
consuming polluted water in any
way has many disastrous effects on
our health. It causes typhoid,
cholera, hepatitis and various other
diseases.
Eradication of
Ecosystem: Ecosystem is extremely
dynamic and responds to even small
changes in the environment.
Increasing water pollution can cause
an entire ecosystem to collapse if left

5. Eutrophication: Chemicals accumulation
and infusion in a water body, encourages
the growth of algae. The algae form a
layer on top of the pond or lake. Bacteria
feed on this algae and this event
decreases the amount of oxygen in the
water body, severely affecting the aquatic
Effects of the food chain: Turmoil
in food chain happens when
the aquatic animals (fish, prawns,
seahorse, etc) consume the toxins
and pollutants in the water, and
then the humans consume them

6. CONCLUSION
• WATER IS AN IMPORTANT SOURCE OF LIFE AND IF IT GETS POLLUTED IT WILL
CHALLENGE THE EXISTENCE OF LIFE ON THIS PLANET.
• IT IS ALREADY KNOWN THAT ONLY 1% OF THE WATER AVAILABLE ON EARTH IS
SUITABLE FOR DRINKING AND IF THE WATER POLLUTION RATE KEEPS
INCREASING THEN THE DAY IS NOT FAR WHEN WATER SCARCITY WILL
CHALLENGE OUR EXISTENCE.
• THE PREDICTION THAT THE THIRD WORLD WAR WILL BE FOUGHT FOR WATER
MAY ALSO BE TRUE. THEREFORE WE MUST SAVE EACH & EVERY DROP OF
WATER AND MAKE IT AVAILABLE FOR OUR FUTURE GENERATION.

7. THANK YOU