Air pollution
Any substance that makes air dirty causes air pollution.
There are many causes of air pollution in Namibia.
Describe sources of air pollution






Wood smoke (from cooking fires & burning bush)
Smoke (from electric power stations and mine smelting station)
Car exhaust fumes ( from cars)
Mica dust
Cigarette smokes
Digestive gases
Distinguish between human-made and natural air pollution
Natural Pollution

This type of air pollution is caused by natural process.
Human-made air pollution

This type of air pollution that is caused by people.
Natural pollution
Human-made air pollution
Examples – digestive causes
Examples -smoke from power station
-smelling animal carcass
-Car exhaust fumes
-volcanoes
- wood smoke
-mica dust
-cigarette smokes
PICTURES OF AIR POLLUTION
A Volcano eruption
Exhaust fumes emission from cars
a furnace in an industrial site emitting smoke
Making a fire and air is polluted
Explain how sustained exposure to polluted air could affect human lungs





It causes lung irritation
It cause more coughs
It can cause asthma and bronchitis
It can cause lungs to produce more mucus
It also causes alveoli from being elastic
Name controls and regulations against air pollution and suggest ways to prevent
the harmful effects.





Rubbish may not be burnt in municipal areas.
Approvals for new factories and industries should be given when safety
measures are in place.
Vehicles must always be in good working order to prevent excessive
production of exhaust fumes.
Rubbish should be buried
People should use alternative sources for lighting and cooking apart from
wood
Outline global warming as one of the effects of increasing air pollution





It is the increase of temperature of the earth’s atmosphere.
Weather pattern will chance
Summer will get hotter and it will rain more
Corps will be affected
Sea levels will rise causing flood