Pollution - created from Mind Map

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Air Pollution

Water Pollution

Eutrophication

Causes

Effects

Indicators

Combustion of fossil fuels (in engines and power stations)

Smokes deposits soot on buildings and trees, causing them damage

Carbon monoxide is poisonous

Carbon dioxide contributes to greenhouse effect

Sulfur dioxide contributes to acid rain

Also permeates the air making it difficult to breathe

Which contributes to global warming

Bushy lichens need really clean air to survive

Crusty lichens can survive in more polluted air

Indicators

Causes

Effects

Fresh water shrimp and stonefly - clean water

Sludgeworm and bloodworm - clean water

Nitrate fertilisers washed off into rivers and reservoires

Sulfur dioxide in the air dissolves in seas and oceans

Pesticides used by farmers washed of into rivers

Death of aqautic organisms

Makes drinking water unhealthy, unsafe and unclean

Excessive richness of nutrients in a body of water which causes a dense growth of plant life

Algal bloom

1. Nutrients from fertilisers are washed off into rivers

2. Pollutants encourage the growth of algae and other plants

3. Algae blooms, preventing sunlight reaching other plants and hence, oxygen depletes

4. Dead plants are decomposed by bacteria, further depleting oxygen

5. As a result, the aquatic ecosystem dies as nothing can live