Population & Pollution

1. Population & pollution

2. The world's population broke the 7 billion person barrier in 2011 and is projected to increase by 40 % in the coming 40 years. Population growth averages vary among the world's nations.

3. Egypt’s population Egyptian data shows that in 1948, Egypt's population reached nearly twenty million , added another twenty million by 1975, twenty million more by 1994, reaching sixty million . Another twenty million over the next seventeen years means eighty million Egyptians by 2011.

4. Population density in egypt

5. Satellite photo shows population density concentrated around the Nile river

6. Impacts of increased population Resources, Air pollution, Water pollution, Noise pollution and House hold waste & sewage.

7. resources The growth in the human population is increasing the use of finite resources. These resources include: fossil fuels such as coal, oil and natural gas are being used up rapidly raw materials such as metal ores and other minerals are being used up rapidly.

8. Air pollution The most common source of air pollution is the combustion of fossil fuels. This usually happens in vehicle engines and power stations . This results in increase of Carbon dioxide, Sulfur dioxide and other green house gases.

9. Water pollution Water pollution is caused by the discharge of harmful substances into rivers, lakes and seas. Many aquatic invertebrate animals cannot survive in polluted water. so their presence or absence indicates the extent to which a body of water is polluted.

10. Noise pollution

11. household Waste & seawage Most rubbish is buried in landfill sites and not all of it comprises safe materials. Even common household items can contain toxic chemicals such as poisonous metals. Many smoke alarms contain radioactive americium, for example. Raw sewage is harmful to the environment. It kills aquatic organisms and harms human health.