Safe water

Question 1

Waterborne bacteria

Answer 1

○ Campylobacter
○ E. Coli
○ Mycobacteria avium complex
○ Salmonella
○ Vibrio spp
○ Leptospira spp
○ Pseudomonas
○ Francisella tularensis
○ Aeromonas spp
○ Heliobacter spp

Question 2

Waterborne parasites

Answer 2

○ Entamoeba
○ Cryptosporidium
○ Cyclospora
○ Giardia
○ Microsporidia
○ Schistosoma
○ Blastocystis
○ Fasciola
○ Toxocara
○ Toxoplasma
○ Balantidium
○ Isospora
○ Taenia
○ Strongyloides

Question 3

Waterborne viruses

Answer 3

○ Hepatitis E
○ SARS
○ Caliciviruses

Question 4

Potable definition

Answer 4

Fit to drink

Question 5

Clean definition (water)

Answer 5

will not harm you to come into contact with

Question 6

Wholesome water

Answer 6

Fit to use for drinking, cooking, food preparation, or washing without any potential danger to human health

Question 7

Who controls hazardous discharges into sewers?

Answer 7

UK water treatment companies

Question 8

Who controls what is discharged into water courses after treatment?

Answer 8

Environment agency

Question 9

Legionnaires disease

Answer 9

water colling systems and showers

Legionella pneumophila serotypes

400/500 UK cases/year

Question 10

Eutrophication

Answer 10

Growth of Cyanobacterium spp with toxic metabolites

Enhanced by raised phosphate, nitrogen, and temperature of surface waters

Question 11

Water tests

Answer 11

Aerobic colony count - includes the organisms responsible for meat spoilage

Enterobacteriacae - indicator of faecal and environmental contamination

Salmonella spp - important in human food poisoning

Question 12

Two types of microbiological criteria

Answer 12

Food safety criteria

Process hygiene criteria

Question 13

Food safety criteria

Answer 13

used to assess the safety of a product or batch of food stuff

Question 14

Process hygiene criteria

Answer 14

used to ensure the production processes are operating properly