KROK 1 Stomatology 2014 – Question 53 · KROK (Dentistry)
After the sanitary and bacteriological study of tap water the following results were obtained: the total number of bacteria in 1,0 ml was 80, coli index was 3. How would you interpret the study results?
- A. Water is highly contaminated
- B. Water is of highly doubtful quality
- C. Water is safe to be consumed
- D. Water is contaminated
- E. Water is of doubtful quality
Hint
Compare each figure with the hygienic limits for drinking water: the permitted total microbial count per 1 ml and the permitted coli index.
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