To raise awareness on environment pollution and brings the current environmental pollution consequences issues into the light.

1. By
Mohammad Ullah Shemanto
MSc Student, Dept of Medical Physics
and Biomedical Engineering, Gono
University, Dhaka, Bangladesh
Junior Officer (Project Department),
Alo Bhubon Trust
Current Environment Pollution Consequences and Its
Effects on Health

2. OUR ENVIRONMENT
The air, water, minerals, organisms, and all other external factors
surrounding and affecting a given organism at any time.

3. Definition of Pollution
 When Harmful Substances Contaminate the environment it is Called Pollution.
 It can be defined as any undesirable change in the physical, chemical, biological
characteristics of any component of the environment which can cause harm to life and
property.

7. Types of Pollution
Pollution
Air
Soil
Noise
Water
Marine

8. Air....
 Air supplies us with oxygen which is
essential for our bodies to live.
 Air is a natural composition of gases like
nitrogen, oxygen, water vapor, carbon dioxide
and inert gases.
 Human activities can release substances into
the air, some of which can cause problems to
humans, plants, and animals.

9. Air pollution
Imbalance in the quality of air so as to cause adverse affects on the living organisms existing on earth.

10. Causes of air pollution
1.Natural sources
 Volcanic eruptions
 Forest fires
2.Man-made sources
 Deforestation
 Emission from vehicles
 Rapid industrialization
 Wars

14. Major Health Effects of Air Pollution

17. Water is the most valuable resource on Earth. Without it, life on our planet would not exist. Every living
thing needs water and every living thing is made in part from water.
Water is an essential part of our daily lives. We use it to drink, cook, bathe, wash our clothes and irrigate
farms to grow crops. We also use it for leisure activities like fishing, swimming or boating. On average, a
human uses 265 liters of water per day. The demand around the world for water is constantly increasing.
Water…...

19. Water Pollution
• The Contamination of water with undesirable substances
which make it unfit for usage is termed water Pollution.
• Natural sources: soil erosion, leaching of minerals from of rocks and
decay matter.
• Industrial effluents
• Destroys ecosystem and effects human health

21. Pollution Sources
 Point sources are direct
discharges to a single point;
examples include
discharges from sewage
treatment plants, injection
wells and some industrial
sources.
 Non-point sources are
diffused across a broad
area and their
contamination cannot be
traced to a single discharge
point.

22. Major Health Effects of Water Pollution

23. Control of Water Pollution
 Treatment of water before leaving in water bodies.
 Restoration of polluted water bodies.
 River Water Monitoring

25.  There are 228,450 known
species in the ocean and as
many as 2 million more that
remain a total mystery.
 70% of the world’s oxygen
comes from the sea.
 97% of the world’s sewage
goes straight into the ocean.
 The ocean is the most
powerful force on the planet.
 At the moment the ocean is
our largest rubbish tip.
Marine Environment

27. Marine Pollution
 Marine Pollution is caused due to Sewage Sludge,
Industrial Effluents, Detergents, solid waste, plastic, etc.
 Single use plastics such as: Straws, Plastic carrier bags,
Plastic water bottles. Plastic micro-beads found in some
toothpastes, facial wash and other toiletries.
o Plastics injure and kill fish, sea birds and marine
mammals.
o 693 species of marine life have been affected including all
seven species of sea turtle, nearly half of marine
mammals, 20% of all seabird species.
o Every year over 100,000 marine mammals and 1 million
seabirds are killed by marine debris.
o A lot if sea life are eating plastic, getting trapped and
caught up in plastic or getting plastic stuck to or inside
them.

28. Marine Pollution
 Globally we produce 280 million tones of
plastic every year, of which 20 million tones
ends up in the ocean.
 An estimated 5.25 trillion plastic particles,
weighing over 250,000 tones, are floating in the
ocean now. If eaten large quantities, the plastic
particles may be poisonous, cause infertility
and disrupt the genes of marine life and the
humans that eat them too.
 5 major ocean gyres, the largest of which is the
North Pacific gyre, which now has 6 parts
plastic for every 1 part natural plankton.
Plankton is responsible for producing more
than 50% of the oxygen in our atmosphere.
 Plastic pollution results in over US$13 billion
of damage to marine ecosystems every year.

30. Noise pollution
 Unwanted and unbearable sound is “Noise”
 Sound travels in form of pressure waves
through air, liquid or solid
 Measured on DECIBEL SCALE.
 Maximum during Diwali,
Ganpati and other festivals
 Higher in Industrial area.
 80 to 120 dB
 Crackers: 125 dB
 Construction: 100 dB

32. Noise standards
 Night 10 p.m. to morning 6 a.m.- loud noise banned.
 Declaration of Zones

33. Soil pollution
 Soil is upper layer of earth
crust, contains organic
matter, fertile
 Dumping of wastes causes
soil pollution
 Garbage
 Rubbish like glass, plastics,
metallic cans, papers, cloth
rags, containers
 Discharge of Industrial
wastes.
 Fly ash from Thermal power
plants
 Fertilizers and pesticides:
DDT, endrin, Lindane.

36. Two types of Waste:
Biodegradable substances are those that
degrades or break down naturally.
These wastes decompose naturally in the
environment and are considered safe for
the environment.
Non-biodegradable substances are
those that do not degrade easily.
Such wastes which do not decompose
naturally in the environment causes
pollution and are also harmful to the living
being are called the non-biodegradable
substances.

37. Composting

38. EFFECTS OF SOLID WASTE

40. Good examples of pollution management

41. Good examples of pollution management

42. Good examples of pollution management

43. Good examples of pollution management
Greta Thunberg: The teenage
eco-activist who took the
world by storm
Greta Thunberg born 3 January 2003) is a Swedish
environmental activist who has gained international
recognition for promoting the view that humanity is
facing an existential crisis arising from climate
change.
She has addressed world leaders and top
economists, had an audience with the pope and been
named Sweden's woman of the year.
In just 14 months, Greta Thunberg has gone from a
lone schoolgirl striking outside the Swedish
parliament to an international celebrity.

44. Good examples of pollution management
Recycling in Taiwan has a rate of 55% as
of 2016. The capital, Taipei has a
recycling rate of 67%. The government
encourages its residents to recycle by
only allowing garbage to be disposed of
in "blue bags". These bags must be
purchased, and increase in cost as the
size increases.

46. Role of an Individual in Pollution prevention
 Think globally act locally
 Use eco-friendly products
 Use rechargeable batteries
 No to excess pesticides, chemicals, paints, solvents
 Use less or only required quantity of resource
 PLANT MORE TREES (local species)
 Best from Waste
 3 R’S- Reduce, Reuse, Recycle

48. Role of an Individual in Pollution prevention

49. Role of an Individual in Pollution prevention

50. Role of an Individual in Pollution prevention

53. Thank you
‫شكرا‬