unit 9 causes and effects of air pollution unit 9 causes and effects of air pollution
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Unit 9
Causes and effects of air Causes and effects of air pollutionpollution
Causes and effects of air Causes and effects of air pollutionpollution
Unit 9 Causes and effects of air pollution
What causes air pollution?What causes air pollution?Unit 9 Causes and effects of air pollution
Nature
Volcanoes emit large amount of gases and ash into the sky whey they erupt.
What causes air pollution?What causes air pollution?Unit 9 Causes and effects of air pollution
Nature
Carbon dioxide is emitted and the ashes are carried by wind over a wide area when forests catch fire.
Nature
Carbon dioxide is emitted and the ashes are carried by wind over a wide area when forests catch fire.
What causes air pollution?What causes air pollution?Unit 9 Causes and effects of air pollution
Nature
Pollen from plants and trees is another pollutant from nature.
Nature
Pollen from plants and trees is another pollutant from nature.
What causes air pollution?What causes air pollution?Unit 9 Causes and effects of air pollution
IndustriesThe burning of fossil fuels produce pollutants such as carbon dioxide and sulphur dioxide.
IndustriesThe burning of fossil fuels produce pollutants such as carbon dioxide and sulphur dioxide.
What causes air pollution?What causes air pollution?Unit 9 Causes and effects of air pollution
Farming
A lot of forests are being cleared for farming by burning. Carbon dioxide is released.
Farming
A lot of forests are being cleared for farming by burning. Carbon dioxide is released.
What causes air pollution?What causes air pollution?Unit 9 Causes and effects of air pollution
Cattle ranchCattle ranch
Farming
Methane is released from rice fields and cattle ranches.
Farming
Methane is released from rice fields and cattle ranches.
Unit 9 Causes and effects of air pollution
Regions in the world most affected by air pollutionRegions in the world most affected by air pollution
Regions affected by air pollution km
Buenos Aires
Beijing
Guangzhou Shanghai
Tianjin
Hong Kong
San FranciscoLos Angeles New Orleans
PhiladelphiaChicago
Toronto MontrealNew York
OsakaTokyo
Cairo
ParisBerlin
AmsterdamLondon
N
How are we affected by air pollution?How are we affected by air pollution?Health problems
Unit 9 Causes and effects of air pollution
Cigarette smoke and gases from cars cause heart diseases
Dust, cigarette smoke, sulphur dioxide cause breathing problems and lung diseases
Sulphur dioxide, nitrogen dioxide, ozone irritate eyes, nose, ears and throat
Lead damages the brain of children
Unit 9 Causes and effects of air pollution
How are we affected by air pollution?How are we affected by air pollution?Effects on trees, crops and fish
Pollutants like sulphur dioxide, nitrogen oxides and ozone kill plants and trees.
Acid rain kills fish and water plants in rivers and lakes. Many lakes in Norway, Sweden and Canada are fishless because the water in them is acidic.
How are we affected by air pollution?How are we affected by air pollution?Unit 9 Causes and effects of air pollution
Pollutants in the air corrode buildings and statues. A lot of money is needed to clean and repair them.
Corrosion of buildings and statues
In 1908 In 1968
How are we affected by air pollution?How are we affected by air pollution?Unit 9 Causes and effects of air pollution
Changes in weather and climate
The temperature of the world is increasing during the last century.
Unit 9 Causes and effects of air pollution
How are we affected by air pollution?How are we affected by air pollution?Changes in weather and climateGlobal warming caused by greenhouse gases leads to the melting of polar ice sheets.
The sea level rises and low-lying coastal regions are drowned. Flooding in Venice