AIM: To explain the link between water pollution and human disease

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Presentation transcript:

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

Some Diseases caused by water pollution: Entamoeba Cholera Cryptosporidium

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

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

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!!!

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

Factories Toxic chemicals Thermal pollution

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

Agricultural Runoff Pesticides Fertilizers Human and animal waste

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.