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Summary of Air Pollution

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Formation of Acid Rain

Name of pollutants that Sources of pollutants Explain how acid rain is formed
cause acid rain that cause acid rain - Acid rain is formed by gases that is released by factories and
vehicles then it will move freely and randomly in the air.
- Sulphur Dioxide - Factories Subsequently, the gases will be combined with water vapour and
- Nitrogen Dioxide form sulphuric acid and nictric acid.
- Vehicles

Effects of acid rain towards buildings and infrastructure Effects of acid rain towards plants and animals
- Corrodes limestone building - Soil will become infertile
- Speeds up rusting - Source of water becomes acidic
- Marine life cannot survive
Thinning of ozone layer

Name of pollutant that Sources of pollutants


causes thinning of that cause thinning of
ozone layer ozone layer Why ozone layer is important for earth?
- Ozone protects the Earth from harmful ultraviolet
- Chlorofluorocarbon - Refrigerator
(UV) rays from the Sun.
( CFC )
- Air-conditioner

- Electronic
Factories

- Aerosal

Effects of thinning of ozone layer towards health How to prevent thinning of ozone layer?
- Cause skin cancer
- Reduce Chlorofluorocarbon ( CFC ) and use
- Eye cataract
Hydrochlorofluorocarbon ( HCFC ) instead.
Greenhouse effect

Explain greenhouse effect is formed


Step 1: Sun’s energy reaches the Earth's atmosphere.
Step 2: Some of them are reflected back into space.
Name of pollutant that Sources of pollutants Step 3: The rest of the sun's energy is absorbed by the land and the
causes greenhouse that cause greenhouse oceans, heating the Earth.
effect effect
Step 4: Heat radiates from Earth towards space.
- Carbon Dioxide - Factories Step 5: Some of this heat is trapped by greenhouse gases such carbon
dioxide in the atmosphere, keeping the Earth warm enough to sustain
- Vehicles life. But, if there’s excessive carbon dioxide in the environment
coming from the factories, vehicles, and open burning.
- Open burning
Step 6: This will trap extra heat, and causing the Earth's temperature to
rise and subsequently causing global warming.

Effects of greenhouse effect to Earth How to prevent greenhouse effect?


- Global Warming - Implement hybrid technology
- Rise of water level - Install filters in smoke chimneys
- Encourage usage of public transport or car pooling

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