Download research task about water pathogens

Water pathogens
TASK
Water contamination: types, sources and health impacts
1) Explain the term pathogen
2) Describe the different types of pathogens
7) Explain how pathogenic contamination of
drinking water supplies can be controlled
(reducing the risks of infection)
3) Describe threats to water quality other than
pathogens
8) Identify the indicator bacteria and assess the
significance of them on water quality
4) Describe which pathogens can be found in
drinking water
9) Describe how turbidity levels impact on the
treatment process of water supplies
5) Explain why Cryptosporidium is found in water
and how it is removed
10) Describe how pH levels impact on the
treatment process of water supplies
6) Explain why Giardia is found in water and how
it is removed
Water quality
HSC Biology
Sydney Catchment Authority PO Box 323 Penrith NSW 2751 Phone 02 4725 2100 Fax 02 4725 2165 Website www.sca.nsw.gov.au
13