clean water flows out rather than the outside water flowing in. 

 The water layer also acts to stabilize the ambient temperature 

 around the diver and acts as a thermoregulator, with a working 

 range of 30-130°F. The primary drawback to the SUS is the need 

 for a clean water supply at the appropriate temperature. 



CONCLUSION 



Increased attention must be paid to the potential threat of 

 acquiring infections with future complications as a result of 

 diving in microbiologically and chemically polluted waters. The 

 combined effect of chemical and microbiological pollutants must 

 be considered since chemicals can irritate a diver's skin or 

 mucosal surfaces and increase the probability of acquiring a 

 bacterial infection. There is clearly a real threat to the 

 health of divers who must work in polluted waters. However, an 

 improved understanding of the hazards and appropriate pre- and 

 post-dive precautions will protect both the divers and support 

 personnel . 



ACKNOWLEDGMENT 



Grateful acknowledgment is made to the National Oceanic and 

 Atmospheric Administration Grant No. NA86AA-D-SG006 for support 

 of the study reported here. 



LITERATURE CITED 



Albach, R. A., T. Booden. 1978. "Amoebae." In: J. P. Kreier 

 (ed.), Parasitic Protozoa II . Intestinal Flagellates, 

 Histomonads, Trichomonads , Amoeba, Oplinids, and Ciliates . 

 New York, N.Y., Academic Press, pp. 455-506. 



Al-Diwany, L. J., T. Cross. 1978. Ecological Studies on 



Nocardio-forms and Other Actinomycetes in Aquatic Habitats. 

 In: M. Mordarski, W. Kurylowicz, and J. Jeljaszewicz 

 (eds.), Nocardia and Streptomyces . Stuttgart and New York, 

 Gustav Fischer Verlag, pp. 153-160. 



Allen, D. A., R. J. Seidler, J. W. Deming, R. R. Colwell, O.P. 

 Daily and S. W. Joseph. 1979. Potential Pathogens 

 Associated with Diving Operations in Polluted Waters. 

 Abstracts of the Annual Meeting of the American Society for 

 Microbiology, p. 230. 



Attwell, R. W., R. R. Colwell and J. Coolbaugh. 1981. 



Actinomycetes, a Possible Hazard Encountered in Diving 

 Operations. Mar. Technol . Soc . J. , Vol. 15, No. 2, 

 pp. 36-40. 



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