The document discusses different types of pollution like air, water, noise, and land pollution. It provides causes, effects and ways to reduce each type of pollution. Major causes of air pollution mentioned are industries, vehicles, and biomass burning. Noise pollution is caused by traffic, industries, construction and airports. Water pollution is caused by disposal of sewage and industrial waste. Land gets polluted due to mining, waste disposal and use of chemicals in farming. Effects of pollution include health impacts on humans, animals and plants. The document recommends various measures people can take to avoid different kinds of pollution like using less fuel, disposing waste properly, and reducing noise and chemical usage.

2. • Pollution refers to the very bad
condition of environment in
terms of quantity and quality.
• When Harmful Substance
Contaminate the Environment
it is called Pollution .

4. • Atmosphere is the
life blanket of Earth.
What is Atmosphere?
• It is the therefore essential that
we know more about the
atmosphere and the ways in which
it is Polluted.

5. Causes of Air Pollution
– High Proportion of undesirable
gases, such as sulphur dioxide and
carbon monoxide
Major sources of Air pollution:-
– Industries
– Automobile and Domestic
fuels

6. 0%
20%
40%
60%
80%
100%
120%
2020-2021 2021-2022 2022-2023 2023-2024 2025
GOVERNMENT
PLAN TO USE
CONCRETE BLOCK
FOR CONSTRUCTION
Series 1
I Brick kilns are the single largest source of air
pollution in Dhaka
I There were 7,900 brick kilns as of 2018 whereas
2,087 of them operated around Dhaka alone
I Brick kilns located around Dhaka are
responsible for 58% of its air pollution
І Bangladesh produces 22.71 billion
pieces of bricks a year
І The govt. has decided to phase out
bricks completely by 2025 by using
concrete blocks as an alternative

7. Air Pollution affects :-
• Human health
• Animals
• Plants
• The atmosphere as a
whole

8. Yes, we can avoid pollution As
Follows
Use natural Gases, like LPG autos
Do not Burst Crackers
Use less Amount of Fuels for Vehicles
Avoid using and use electric stoves
(bio gas)

9. Water God’s Valuable Gift
Water is one of the most important natural resources on
earth for sustaining the human life. It is available to us
from rivers, springs, ponds, underground sources for our
daily needs from drinking to cleaning. Some of these
sources are replenished by annual rains while some are fast
depleting which is giving an alarming call for water
conservation. Water is available on earth in many forms
ranging from ice-capped mountains to mighty seas.
Though it appears in abundance a limited portion of it is
potable, the rest is to be processed through costly methods
to remove the undesired salts and materials.

10. • “The introduction by man, directly or
indirectly, of substances of energy into
the marine environment ( including
estuaries) resulting in such deleterious
effects as harm to living resources,
hazards to human health, hindrance to
marine activities, including fishing,
impairment of quality for use of sea
water and reduction of amenities.”
(United Nations, 1971)
• Water pollution almost always means
that some damage has been dome to an
ocean, river, lake, or other water source.

11. • About 40% of Deaths worldwide are
caused by Water Pollution.
• Water Pollution is Caused by organic
and inorganic industrial wastes and
affluent discharged into rivers.
• Noise also causes anxiety stress
reaction and fright.

12. Useless things
polluted water
Sewage
polluted water
Ternary
polluted
water

13. • Aquatic life gets
destroyed
Diseases like :-
• Cholera
• Malaria
• Typhoid (spread during
the rainy season)

14. • Rivers should not be used washing
clothes of bathing animals in.
• Harvesting of Rainwater to meet
water requirements.
• Dams & embankments must be
created.
• The rivers must not be
contaminated.
• In sacred river like Buriganga the
dead bodies shouldn’t thrown.

15. NOISELESS ATMOSPHERE
 Noises can be simply defined as
unwanted sound.
 The sound is pleasant or not
depends upon its loudness,
duration rhythm and the mood
of the person.
 Noise pollution not only results
in irritation

16. Noise pollution from
industry
Noise pollution from
traffic jam
Noise pollution from
constriction
Noise pollution from
aircraft

17. • Hearing Loss
• High Blood Pressure
• Stress
• Sleep Disturbance
• Color Blindness

18. How to Avoid Noise Pollution
• The Government should ensure the new
machines that should be noise proof.
• Airports must be away from residential area.
• The Sound horn symbol is to be in School
Roads.
• Sound affects our ears, so loud noise should
be avoided.

19. .

20. Causes of Land Pollution
We can classify major sources that lead to land
following Categories:-
 Mining and quarrying
 Sewage waste
 Household Garbage
 Industrial Waste

22. Effects of Land Pollution
 The Land cannot be construct house .
 Man cannot be farming .
 Ground water will gets affected .
 House hole garbage like putting plastics.
 When land is polluted, it directly or indirectly affect the climate
patterns.
 Tress and plants help balance the atmosphere, without them we
are subject to various concerns like Global warming, the
greenhouse effect, irregular rainfall and flash floods among
other imbalances.
 The toxic chemicals can reach our body through foods and
vegetables that we eat as they are grown in polluted soil.
 The animal kingdom has suffered most in the past decades.

23. • More and more land should be brought under farming.
• Tress should be planted everywhere.
• Waste matter should be disposed immediately.
• Avoid drilling the Land for more underground water.
• Avoid using more fertilizers and Pesticides.
• Avoid buying packages items as they will lead to garbage
and end up in the landfill site.
• Ensure that you do not litter on the ground and do proper
disposal of garbage.
• Buy biodegradable products.
• Do organic gardening and eat organic food that will be
grown without the use of pesticides.
• Create dumping ground away form residential areas.

24. 1) Throw trash in the proper places.
2) Reuse bags and containers.
3) Eat organic food.
4) Don’t buy products in aerosol spray cans.
5) Reduce, reuse and recycle.
6) Use non-toxic cleaning materials.
7) Use energy-saving light bulbs.
8) Plant more trees and vegetation.
9) Keep the volume of your T.V, music low.
10) Avoid burning trash.
11) Don’t smoke.
12) Buy biodegradable products.
13) Try using natural fertilizer pesticides.

25. Thank
you