Type of pollution

Causes

Land pollution

▪ Refuse from homes, factories, etc

▪ Insecticides and weedkillers

▪ Radioactive waste products from nuclear power stations

Water pollution

▪ Factory waste containing poisonous chemicals

▪ Oil slicks from ship spills

▪ Soil erosion making water cloudy

▪ Refuse and sewage make water dirty and breed germs

Air pollution

▪ Dust, smoke and harmful gases from factories, motor vehicles, tobacco smoke

Noise pollution

▪ Heavy traffic

▪ Construction site

▪ Aeroplane

▪ Loud music from television and radio