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DIDAVISION


ATMOSPHERIC POLLUTION


ATMOSPHERIC POLLUTION
ATMOSPHERIC POLLUTION

The atmosphere: Its composition, evolution and alterations. Smog. Power-plants: the Industries which contaminate most. Compounds released by aerosols. Natural sources of contamination. Effects of contamination: Acid rain, CFCs, ... Summary.


INTRODUCTION
- The Atmosphere is a gaseous layer in constant movement. It is about 1,000 kilometres thick and is made up of a mixture of gases.
- Composition of the atmosphere
- The water-vapour
- The development of the composition of our atmosphere
- The Industrial civilisation: the alteration of the atmosphere balance
- Sulphur and carbon-dioxides
- Ozone-concentration

SOURCES OF CONTAMINATION
- Of all human activities which pollute our atmosphere, the worst is our use of fossilised fuels: coal, petroleum and natural gas.
- Domestic heating and cars
- Smog
- Cement and metal industries
- Chemical and food industries
- The aerosols
- Forest fires
- Volcanic eruptions

EFFECTS OF CONTAMINATION
- The acid rain and its devestating effects on our planet.
- The green-house effect
- The global climate
- The decrease in ozone concentration in the atmosphere and its consequences.
- The KFCS or chloroflourocarbons

SUMMARY

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