Water quality of swimming pools in Jerusalem

S. Lerman*, O. Lev, A. Adin, E. Katzenelson

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


The Israel Ministry of Health is now revising its regulations for the assurance of safe water quality in public swimming pools. Since it is not possible to monitor each of the pathogenic microorganisms it is often recommended to monitor indicator bacteria which provide indirect information on the water quality in the swimming pool. Three indicator microorganisms are often recommended: coliform counts( total coliforms, fecal coliforms or E. Coli). staphylococcus aureus and pseudomonas aeruginosa. A four year survey of the water quality of swimming pools in the Jerusalem District was conducted in order to determine whether the monitoring of all three indicators is necessary to assure safe water quality or is it sufficient to monitor only a single microorganism. A statistical analysis, conducted by using several different, statistical techniques, reveals that the populations of the three indicator organisms are significantly interdependent but the correlations between each pair of these indicators are not sufficient to base a prediction of any of the organisms based on the measurements of the others. Therefore, it is concluded that monitoring of all three indicators should be recommended in order to provide an adequate picture of the water quality in swimming pools.

Original languageAmerican English
Pages (from-to)287-294
Number of pages8
JournalWater Science and Technology
Issue number7-8
StatePublished - 1993
Externally publishedYes
EventProceedings of the 5th International Conference on Environmental Quality and Ecosystem Stability - Jerusalem, Isr
Duration: 1 Jun 19921 Jun 1992


  • Chlorine
  • Coliform
  • Disinfection
  • Indicator microorganisms
  • Pseudomonas
  • Staphylococcus
  • Statistical analysis
  • Swimming pools


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