1. AIM: To explain the link between water pollution and human disease
DN: Write a caption for the picture
HW: Article Due Friday

3. Some Diseases caused by water pollution:
Entamoeba
Cholera
Cryptosporidium

4. Robert Koch German Doctor Linked cholera outbreak to water
Resulted in the restriction of dumping wastes in water
Koch’s Postulates
A set procedure to determine a disease causing pathogen

6. Pathogens
Pathogens carried by water result in more human illness and death than any environmental factor!!!
EX:Cholera, Malaria

7. Sewage Water that contains organic wastes from humans and industry
Ex: toilet, sink, dishwasher, washing machines
*****NOT ALL COUNTRIES TREAT SEWAGE BEFORE IT IS DUMPED!!!

8. Sewage Treatment Plant
Process raw sewage before it is returned to surface water systems

9. Factories
Toxic chemicals
Thermal pollution

10. Thermal Pollution Industry using water as a coolant for machines
As temperature increases, the amount of oxygen decreases

11. Agricultural Runoff
Pesticides
Fertilizers
Human and animal waste

15. What are some sources of sewage?
What is the purpose of a sewage treatment plant?
Name some pathogens found in water.
What are some common water pollutants?
Explain how thermal pollution affects an aquatic ecosystem.