Environment pollution of Bangladesh Power point presentation. Creator- S I SOBUJ Student of IUBAT, Uttara, Dhaka-1230 http://iubat.edu/

1. S I SOBUJ-01817501983

2. SL NAME ID Program
01 Md. Shiful Islam 12102120 BBA
02 Umma Jahan 12102117 BBA
03 Moushume Sultana 12102126 BBA
04 Arifa Chowdhury 15102288 BBA
Course: ENV 101
Faculty- Dr. M. Rehan Dostogir
Section- D

4. Environment Pollution
Water Pollution
Air Pollution
Noise Pollution
Soil Pollution

7. ages
Industrial waste
Sewage and waste water
Mining activities
Marine dumping
Accidental Oil leakage
Burning of fossil fuels
Chemical fertilizers and
pesticides
Land Ericson
Flood
Leakage from sewer lines
Global warming
Urban development
Animal waste
Underground storage leak

8. Effects of water pollution
>Human Health
>Ecosystems
>Death of Animals
>Agriculture
>Disruption of food-chain

9. Prevention of water pollution
.
Never throw rubbish away anyhow. It
is high time to prevent water pollution
at any cost. But only govt. Will not be
abele to check this problem. Public
awareness should be raised. We should
make all out effort to prevent water
pollution for healthier and happier life.

11. Air Pollution
Any visible or invisible particle or
gas found in the air that is not part of
the original, normal composition.

12. Causes of Air Pollution
 Natural Causes
– Dust.
– Smoke from wildfire.
 Man made Causes
– Burning of Fossil Fuels
 Vehicles.
 Road construction.
 Building construction.
– Agricultural activities
– Exhaust from factories and industries
 Bad smoke.
 Waste.
 Liquid chemicals.
– Indoor air pollution
 Household cleaning products.
 painting supplies emit toxic chemicals.
 Smoking .

13. 5 Major Pollutants
1. Carbon Monoxide
2. Sulfur Dioxide
3. Nitrogen Dioxide
4. Particulate Matter
5. Ground Level Ozone

14. Effects of Air pollution
• Human Effects
– Diseases...
• Environmental Effect
– Global warming
– Acid Rain
– Eutrophication
– Effect on Wildlife
– Depletion of Ozone layer

15. Solutions for Air Pollution
• Use public mode of transportation
• Understand the concept of Reduce, Reuse and Recycle
• Emphasis on clean energy resources
• Ride your bike
• Tell your friends and family about pollution
• Join a group to stop pollution
• Switch off lights, fan, heat, etc. when you leave the room
• More smoke produces factory can use filter which can
able to remove bad element from smoke. eg … brick
making factory.

17. Noise pollution
Noise is unwanted sound .When there is lot of noise in the
environment, it is termed as noise pollution.

18. Causes of Noise Pollution
1. Transportation
2. Construction Activities
3. Household Chores
4. Social Events
5. Defense exercise

19. Effects of Noise pollution
• Hearing Problems
• Health Issues
• Annoyance
• Human performance
• Nervous system
• Sleeplessness

20. Cont…
• Effect on Wildlife
-Masking
-Physiological effects
-Behavioral effects
-Ecological effects

21. Solution
Turn off electronics
Sound proof space
Earplugs

23. Soil pollution is defined as the build-up in
soils of determined toxic
compunds,chemicals,salts,radioactive,mate
rials,or disease causing agents, Which have
adverse effects on plant growth and animal
health.

24. Main causes of soil pollution
• Agriculture activities
• Waste Disposal
• Overcrowded landfills
• Industrialization
• Construction activities
• Nuclear waste
• Sewage treatment
• Construction activities

25. Soil Pollution and Its Effects :
Soil pollution may affect all of us as well as
plants and animals. However, children are usually more
susceptible. This is because kids are more sensitive to various
pollutants and they may come in close contact with soil by
regularly playing in the ground for example.
Effect on Health of Humans:
 Crops and plants grown on polluted soil absorb much of the
pollution and then pass these on to us. This could explain the
sudden surge in small and terminal illnesses.
 Long term exposure to such soil can affect the genetic make-up
of the body, causing congenital illnesses and chronic health
problems that cannot be cured easily.

26. Toxic Dust:
The emission of toxic and foul gases from landfills pollutes
the environment and causes serious effects on health of some
people. The unpleasant smell causes inconvenience to other
people.
Changes in Soil Structure:
The death of many soil organisms in the soil can
lead to alteration in soil structure. Apart from that, it could also
force other predators to move to other places in search of food.

27. Decreased Soil Fertility:
The toxic chemicals present in the soil
can decrease soil fertility and therefore decrease in the soil yield.
The contaminated soil is then used to produce fruits and vegetables
which lacks quality nutrients and may contain some poisonous
substance to cause serious health problems in people consuming
them.
Methods to control soil pollution:
There are many factors which control the soil pollution. It
includes the limited use of fertilizers and pesticides.
 The biological control method must be known and implemented.

28.  The grazing must be controlled and forest management should be
done properly.
 The a forestation and reforestation must be done. In areas of
wind erosion wind breaks and shields must be used.
 The soil binding grass must be planted and the large trees must
be placed along the banks.
 The industrial wastes must be dumped in the low lying areas.
 There is a definite technique of cropping which does not allow
the weeds to settle on the fields. The mining ways must be
improved along with their transportation. The area must not be
left barren and dry.

29. How soil pollution and soil erosion could be prevented
 proper planting of plants with extensive root systems helps
to prevent soil erosion as the roots hold the soil in place.
 Plants that break down and/or sequester contaminates can
be used to prevent the spread of pollution.
 Reforming farming practices to reduce soil erosion and
Industry to reduce the quantity of pollutants can also be
effective at preventing soil erosion and pollution from
occurring.
 Low till farming and green chemistry are two examples of
technologies that can reduce soil erosion and pollution in
that order.