1. POLLUTION

2. Definition The addition to the biosphere of a substance by human activity, at a rate greater than that at which it can be rendered harmless. It can be: matter (solid, liquid or gas) energy (noise, light, heat)

3. Types Natural Man made

4. Point Source the release of pollutants from a single, clearly identifiable site, e.g. a factory chimney or the waste disposal pipe of a sewage works into a river.

5. Non-point source (NPS) the release of pollutants from numerous, widely dispersed origins, e.g. gases from the exhaust of vehicles Chemicals spread on fields

6. Which source would be easier to manage? Why?

7. Major Sources of Pollution Combustion of fossil fuels Domestic and industrial waste Manufacturing waste Agricultural waste

8. Combustion of fossil fuels

9. Effects of burning fuels

10. Domestic waste

12. Industrial and Manufacturing waste

13. Agricultural waste

14. Liberty Lake, 1989

16. Effects of Pesticides

17. Direct methods of monitoring Record the amount of pollutant

18. Indirect methods Record changes in abiotic or biotic factors BOD Biotic index

19. What is an indicator organism? Plants and animals their presence, abundance, or chemical composition, Demonstrate quality of the environment. Read more: Indicator Species - body, used, water, plants, type, chemical, animals, oxygen, air, parts, plant, surface, Ecological significance http://www.scienceclarified.com/He-In/Indicator- Species.html#ixzz1DMC9SiVTIndicator Species - body, used, water, plants, type, chemical, animals, oxygen, air, parts, plant, surface, Ecological significance http://www.scienceclarified.com/He-In/Indicator- Species.html#ixzz1DMC9SiVT

20. AIR POLLUTION Lichen – sensitive to SO 2 and O 3

21. Tolerates oxides of Sulphur Tolerates oxides of Nitrogen Clean air

22. “Reindeer lichen" or “Old man's beard – Pollution intollerant

23. LAND POLLUTION Birds eggs – pesticides Amphibians Plants – pollutant in leaves

24. WATER POLLUTION

25. Examples of Intolerant organisms

26. Examples of Moderately Intolerant organisms

28. Examples of Pollution Tolerant organisms