الفهرس 
AcknowledgementOnly 14 pages are availabe for public view
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Abstract
There has been a rapid increase in the number of swimming pools constructed in this country in recent years ~nd their proper disinfection and operation is becoming an increasingly important public health prob 1em. This study was carried out on 40 water samples collected from four different swimming pools (10 from each of Smouha, Sporting, ’University and Elkashafa pools) as a trial to assess their sanitary quality and to confirm the usefulness of Staphylocooci as indicators of swimming pool.water pollution. . . All water samples were examined for the presenoe of faecal coliforms, Staph~lococci and Staph. aureus by using the MPN method for enumeration. The results of this study revealed the following: ,1. Out of the 40 water samples examined, 27 were free from faecal coliforms while all samples contained diverse numbers of Staphylococci and Staph. aureus. 2. There was a weak inverse correlation between Staphy- . loooccal count and each of the residual chlorine and the temperature of the tested water. 3. There was also a weak direct correlation between the counts of these organisms and each of the pH of the . water and the number of swimmers. 4. There was a strong inverse correlation between the pH and the residual chlorine of the tested water samples. 5. There was a statistical significant difference between the mean of the counts of Staphylococci (337.7/100 ml) as compared to that of the faecal coliforms (1.65/100 ml) as enumerated in the tested wa ters. 6. There was no statistical significant difference . between the mean of the counts of Staphylococci in general and that’ of Staph.aureus in particular ( 241. 4 /100 m1). 7. Sporting swinming pool had the least Staphylococcal counts (mean of 44.3 /100 ml) as compared to Smouha pool (356 /100 ml), university pool (442.4/100 ml)and Elkashafa pool (508.2/100 ml). 8. These pools ranked in the same order as regards the Staph. aureus counts. 9. Although the mean of the counts of faecal coliforms was low in all the four swimming pools (0.9-2.6/ 100ml) yet it was lowest in sporting pool where these organisms - in many instances - could not be detected. 10. The residual chlorine - as detected in the ~our sw1mming pools - was the highest in sporting pool (0.97 ppm), and the low~st in Elkashafa (0.1 ppm). 11. The pH of the tested waters was mostly acidic in sporting pool(mean of .5.8.) and almost neutra.l in . the three other pools(mean o~ 7.4 - 7.6). 12. The number o~ swimmers a~ detected in the four swimming pools was highest in sporting pool (mean of 347.8 bathers) and lowest in Smouha pool (59.1 bathers). ”. 13. It was calculated that each swimmer in Smouha pool was using 2.0 m3 of water, the corresponding figures for the swimmers in sporting, university and Elkashafa pools were 5.2 m2, 4.1 m3 and 1.1 m3 re sp e 0 t i v e ly . 14. There was a statistical significant difference between the coagulase production and each of the mannitol fermentation capability and the DNase production of 600 isolated Staphylococcal colonies. from these results, it was concluded that: 1. Staphylococci are a major bacterial contaminant of swimming pools and are affected by some factors such as residual chlorine, pH, temperature and number of swimmers. 2. A significant portion of these Staphylococci are Staph. aureus. 3. Faecal coliform test could not be accepted as an accurate measure of swimming pool water pollution as it was detected in very small number or not at all. 4. Sporting pool was the best operated one as it con tained the last counts of the investigated micro organisms anq had an aoceptable residual chlorine in most of the times. 5. Stap~. aureus~s isolated from chlorinated water gave altered reactions as regards their mannito~ fermentation capability and DNase production