This document discusses various types of pollution including soil, water, air and noise pollution as well as the greenhouse effect. It provides details on the causes and impacts of each type of pollution. Some key points made include that overuse of pesticides and fertilizers can contaminate soil, untreated waste is a major cause of water pollution, burning fossil fuels emits gases that contribute to air pollution and global warming, and cutting down trees reduces natural greenhouse gas absorption and exacerbates climate change effects. The conclusion emphasizes the importance of reducing pollution through measures like planting trees, preventing deforestation, raising awareness, and regulations on industries and agriculture.

1. International University of Business
Agriculture & Technology
A PRESENTATION ON
Environment
Pollution
Bachelor of Computer Science & Engineering

2. Soil pollution Water
pollution
Air pollution Sound
pollution
Green
house effect

3. Pollution of Soil
• What is soil pollution?
Entrance of materials,
biological organisms or
energy into the soil causes
changes in soil quality and
thus causes soil to remove
from its natural state is called
the pollution of soil or land
pollution.
Image 1: Soil pollution by man made waste

4. Agricultural Activity
Image 2: Use of pesticides in agriculture
• Farmers often use highly
toxic fertilizers and pesticides
to get rid off insects, fungi
and bacteria from their
crops. However with the
overuse of these chemicals,
they result in contamination
and poisoning of soil.
• Pesticides and fertilizers seep
into the ground after they
mix with water and slowly
reduce the fertility of the
soil.
• Other chemicals damage the
composition of the soil and
make it easier to erode by
water and air.

5. Industrial Activity
Image 3: Industrial garbage
Many industries like textile, paper, steel, sugar, petroleum, food,
chemical and cement industries cause air pollution, water pollution
and soil pollution.

6. Wastage Disposal
Image 4: Municipal garbage
Our waste products are
full of chemicals that are
not originally found in
nature and lead to soil
pollution. Urban waste is
municipal garbage.
This is made up of
materials discarded by
homes and industry. It
contains paper, plastic
and organic materials.

7. Acid Rain
Acid rain is caused when
pollutants present in the air
mixes up with the rain and
fall back on the ground.
The polluted water could
dissolve away some of the
important nutrients found in
soil and change the structure
of the soil.
Image 5: Effects of Acid Rain

8. Solutions of Soil pollution
Figure 1: Waste management hierarchy
The waste management
hierarchy shows the
options with their
priorities in managing
waste
1. Make people aware
about the concept of
Reduce, Recycle and Reuse.
2. Reduce the use of
pesticides and fertilizers in
agricultural activities.
3. Avoid buying packages
items as they will lead to
garbage and end up in
landfill site.
4. Ensure that you do not
litter on the ground and do
proper disposal of garbage.

9. WATER POLLUTION
Water pollution is the contamination of water bodies
(e.g. lakes, rivers, oceans, aquifers and groundwater).
Water pollution occurs when pollutants are directly or
indirectly discharged into water bodies without
adequate treatment to remove harmful compounds.

10. Polluted river
Image 6:Raw sewage and industrial waste in the New River as it passes from Mexicali to
Calexico, California.

11. CAUSES OF WATER POLLUTION
Sewage and waste
water
Marine dumping
Oil pollution
Global warming
Atmospheric deposition
Radioactive waste
Underground
storage leakages

12. WATER POLLUTION IN BANGLADESH
(TURAG RIVER)
Image 7: Turag river in 1990. Image 8: Turag river in 2012.

13. WATER POLLUTION IS INCREASING
DAY BY DAY
Figure 3: The water pollution
report of USA
Figure 2: Change of water quality
in 1990 to 2006.
1990 to 2006 ,the water quality
is running low. We can easily
check the difference of water
quality in these two figures.

14. CONTROL OF WATER POLLUTION
Stabilization of ecosystem
Using water hyacinth to remove water pollutants
Using chemical methods
a. Ion exchange
b. Reverse
Recycling , Renovation , Recharge and Reuse
of waste water.
osmosis
c. Precipitation
d. Coagulation
Cooling methods

15. AIR POLLUTION
Air pollution means contamination . It is a global concern at
present. Emitting carbon monoxide gases vehicles pollute our
city lives seriously. Besides, human waste in the open air is
also the cause of serious air pollution.
Image 9:Air is polluted by smoke. Image 10: Air is polluted by
vehicles

16. Causes of Air Pollution
• Burning of Fossil Fuels: Sulfur dioxide emitted from
the combustion of fossil fuels like coal, petroleum
and other factory combustibles is one the major
cause of air pollution.
• Ammonia is a very common by product from
agriculture related activities and is one of the most
hazardous gases in the atmosphere.

17. Effect of Air pollution
• Air pollutants that are inhaled have serious impact on human health
affecting the lungs and the respiratory system
Figure 11:Human body is effected by air pollution.

18. Image 12:Environment is polluted by air pollution.

19. Solutions for Air Pollution
1. Use public mode of transportation: Encourage people to use
more and more public modes of transportation to reduce
pollution. Also, try to make use of car pooling. If you and your
colleagues come from the same locality and have same timings
you can explore this option to save energy and money.
2. Conserve energy: Switch off fans and lights when we are going
out. Large amount of fossil fuels are burnt to produce
electricity. You can save the environment from degradation by
reducing the amount of fossil fuels to be burned.
3. Understand the concept of Reduce, Reuse and Recycle: Do
not throw away items that are of no use to you. In-fact reuse
them for some other purpose. For e.g. you can use old jars to
store cereals or pulses

26. What is Greenhouse Effect?
Greenhouse Effect means
the permanent rise of
temperature in atmosphere
around the world.
Earth’s atmosphere is
slightly warmer than what it
should be due to direct solar
heating because of a mild case
of greenhouse effect.
Image 20 :Surface is getting warmer

27. Reasons of Greenhouse Effect
 The ground is heated by
visible and (some)
infrared light from the
Sun.
 The heated surface emits
infrared light.
 The majority of Earth’s
atmosphere (N2 and O2)
are not good greenhouse
gas.
 Everyday we’re cutting
down trees that is also
responsible for
greenhouse effect.
Image 21:Sources of Greenhouse Effect

28. Overall Impacts
The Greenhouse Effect
increases the temperature of
the Earth by trapping heat in
our atmosphere.
Less trees and more CO2 are
making our globe hotter day
by day.
Flash floods, severe storms
and droughts are sometimes
attributable to climate change
caused by the Greenhouse
Effect.
The burning of fossil fuels
creates CO2 which slows the
escape of heat into space.
Image 22: Process of green
house effect
Image 23: factories emits smoke
creating pollution

29. Some Pictures Of Greenhouse
Effect
Ice are melting because of greenhouse effect
Image 24: Ice melting through
Greenhouse Effect
Image 25:Our land are hampered
through climate change

30. CONCLUSION
We have to take proper steps to keep our environment
pollution free
We have to plant more trees and have to prevent deforestation.
We have to prevent soil pollution, water pollution, air pollution ,sound
pollution and green house effect.
For reduce those pollution we have to be conscious about the
environment ,and have to make awareness in the peoples mind.
Our government can take proper steps for that.
Several measures have been adopted ,suggested imposed in the
industries in agriculture and urban dwellings to control the pollution.

31. If we do not stop this Environment
Pollution, our future will be like that

32. THANK
YOU ALL