Members: Chan Yee Na(26)

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Air Pollution in Hong Kong

• MembersChan Yee Na (26)
• Koo Kit Yan (28)
• Lai Ka Ka (29)
• Sin Chun In (37)
• Wong Chun Yan (39)

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Content

• Causes of Air Pollution
• Effect of Air Pollution
• Solutions and Suggestions of HKSAR Government
• Conclusions

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Causes of Air Pollution
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Transports

• Since more cars are used in city area, more
  exhaust fumes discharge relatively.
• Also, the buildings in town are tall and this
  blocks the spread of polluted air, this worsen
  the problem of air pollution in certain areas.

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Burning and Industrial Activities

• During the process of burning the fossil fuel,
  many pollutants would be discharged, e.g. carbon
  dioxide and carbon monoxide.
• Poisonous gases would be discharged by factories
  and this may cause many diseases, e.g. lung
  cancer.

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Domestic Activities

• CFCs are organic compounds and were used in
  making foam items such as foam cups and foam
  lunch boxes, and in aerosols such as insecticides
  and hair sprays.
• Also, the use of CFCs would destroy the ozone
  layer, so they were banned in 1987.

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Waste Incineration

• Since more and more rubbish have been thrown by
  residents, we could predict the landfills would
  become saturated.
• Moreover, we need to incinerate more and more
  waste, and the exhaust fumes would be discharged.

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Effect of Air Pollution
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Effect of Air Pollution

• Air quality becomes worse - The air contains a
  lot of polluting gases including carbon dioxide,
  carbon monoxide, sulphur dioxide, nitrogen
  dioxide, particulates and lead particles
• The sea level rises up- Due to ice melting in
  polar regions

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Effect of Air Pollution

• Rises in temperature- Greenhouse effect global
  warming
• Irritation to human- Carbon monoxide may causes
  dizziness, headaches, fainting and eventually
  death - Sulphur dioxide and nitrogen dioxide
  cause irritation to our respiration system and
  eyes

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Effect of Air Pollution

• Lower the photosynthesis rate of plants-
  Polluting gases, smoke and fog block the sunlight
• Affect of air transportation- Smoke and fog
  lower the range of vision
• Acid rain

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Solutions suggestions to HKSAR Government
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Citizens in Hong Kong

• -Use public transport instead of private car.
• This can reduce the concentration of pollutants
  such as carbon dioxide, carbon monoxide, etc from
  exhaust fumes.
• MTR, a kind of public transport
• -Avoid smoking and using spray
• Spray contains CFCS, which can pollute the air.
  So if we don't use spray, air pollution problem
  will be less serious.
• Smoking not only bad for our health, but also
  cause air pollution!

Sprays
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Citizens in Hong Kong

• Switch off electrical appliances when we don't
  use them
• For example, when we switch on the lights,
  electricity is needed. Generating electricity is
  by the method of burning coal.
• If we don't save electricity, air pollution may
  also get more serious because burning coal can
  release large amount of carbon dioxide.

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Suggestions to HKSAR Government

• - Education
• The Government and community groups play an
  important role in spreading messages of
  environmental protection through education.
• e.g. Education through tree-planting which
  helps to absorb carbon dioxide and
  release oxygen.
• - Legislation
• Laws are made to prevent people from polluting
• the air.

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Suggestions to HKSAR Government

• - Planting trees beside the road
• This can make the air clean.
• -Introducing LPG taxi and light bus scheme
• This can reduce the gases (carbon dioxide) that
  pollute the air.

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Conclusions

• Causes of Air Pollution in Hong Kong
• Transports
• Burning and Industrial Activities
• Domestic Activities
• Waste Incineration

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Conclusions

• Effect of Air Pollution
• Air quality becomes worse
• The sea level rises up
• Rises in temperature
• Irritation to human
• Lower the photosynthesis rate of plants
• Affect of air transportation
• Acid rain

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Conclusions

• Solutions and suggestions
• Use public transport instead of private car
• Avoid smoking and using spray
• Switch off electrical appliances when we dont
  use them

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Conclusions

• Education
• Legislations
• Plant more trees
• Introduce the use of clean fuels

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The End