2. Content
 Definition of pollution
 Types of pollution
 Air pollution
a) Introduction b) Cause
c) Effects
d) Prevention
 Water pollution
a) Introduction b) Cause
c) Effects
d) Prevention

3. Content cont……….
 Land pollution
a) Introduction b) Cause
c) Effects
d) Prevention
 Noise pollution
a) Introduction b) Cause
c) Effects
d) Prevention

4. Definition of pollution
 Pollution is the introduction of contaminants into a
natural environment that causes
instability,disorder,harm or discomfort to the
ecosystem .
 Pollution can take the form of chemical
substances or energy such as noise, heat or light.

6. What is air pollution
Air pollution is the introduction of
chemicals, particulate matter, or
biological materials that cause harm
or discomfort to humans or other
living organisms, or damages the
natural environment into the
atmosphere. The atmosphere is a
complex dynamic natural gaseous
system that is essential to support
life on planet Earth. Stratospheric
ozone depletion due to air pollution
has long been recognized as a
threat to human health as well as
to the Earth's ecosystems.

7. CAUSES OF AIR POLLUTION
 - Industries.
 -Automobiles and Domestic fuels
 -High Proportion of undesirable
gases,such as sulphur dioxide and
carbon monoxide

8. EFFECT OF AIR POLLUTION
Air Pollution affects???
 Human health
 Animals
 Plants
 The atmosphere as a whole

9. How to prevent air pollution
 Carpool
 Walk or ride a bicycle
 Connect your outdoor
lights to a timer or use
solar lighting.
 Wash clothes with warm
or cold water instead of
hot.
 Plant trees etc…….

10. Water pollution

11. What is water pollution
Water pollution is the
contamination of water bodies. E.g.
lakes, rivers, oceans, groundwater.
Water pollution affects plants and
organisms living in these bodies of
water; and, in almost all cases the
effect is damaging either to
individual species and populations,
but also to the natural biological
communities. Water pollution
occurs when pollutants are
discharged directly or indirectly
into water bodies without adequate
treatment to remove harmful
compounds.

12. Causes of Water Pollution
 About 40% of Deaths
worldwide are caused by
Water Pollution.
 Water Pollution is Caused
by organsic and inorganic
industrial wastes and
affluents discharged into
rivers.

13. Effects of Water Pollution
 Diseases like Cholera
 Malaria
 Typhoid (spread during the rainy season )
 Aquatic life gets destroyed

14. How to prevent water pollution
 Rivers should not be used
for washing clothes or
bathing animals in.
 Dams should be created.
 In sacred rivers like
Ganga dead bodies
shouldn’t be thrown.

16. NOISE POLLUTION
Noise pollution is displeasing
human, animal or machine-created
sound that disrupts the activity
or balance of human or animal life.
The word noise comes from the
Latin word nausea meaning
seasickness. The source of most
outdoor noise worldwide is
transportation systems, including
motor vehicle noise, aircraft
noise and rail noise. Poor urban
planning may give rise to noise
pollution, since side-by-side
industrial and residential
buildings can result in noise
pollution in the residential area.

17. Causes of Noise Pollution
 Traffic Noise
 Air craft Noise
 Noise from construction
and civil engineering
works.
 Noise from the
Industries.
 Noise from other sources.

18. Effects of Noise Pollution
 Hearing Loss
 High Blood Pressure
 Stress
 Sleep Disturbance
 Color Blindness

19. How to prevent noise pollution
 The government should
ensure the new machines
are noise proof.
 Airports should be away
from residential areas.
 ‘No horn’ boards should
be put on/near school
areas.
 We should talk less and
work more.

21. LAND POLLUTION
Land pollution is the degradation
of Earth's land surfaces often
caused by human activities and
their misuse of land resources.
It occurs when waste is not
disposed properly. Health hazard
disposal of urban and industrial
wastes, exploitation of minerals,
and improper use of soil by
inadequate agricultural practices
are a few factors. Urbanization
and industrialization are major
causes of land pollution.

22. Causes of Land Pollution
 Throwing garbage
 Construction
 Waste
 Industrial waste
 Mining

23. Effects of Land Pollution
 Agriculture
 Littering
 Climate
 Biodiversity

24. How to prevent land pollution
 More and more land should




be brought under farming.
Trees should be planted
everywhere.
Waste matter should be
disposed immediately
Avoid drilling lands for
underground water.
Avoid using fertilizer and
pesticides for farming.