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The relationship between rainfall and well water pollution in a West African (Gambian) villaǵe

Published online by Cambridge University Press:  15 May 2009

R. A. E. Barrell  and
M. G. M. Rowland
R. A. E. Barrell
Affiliation:
Medical Research Council Dunn Nutrition Unit, Keneba Laboratories, The Gambia Dunn Nutritional Laboratory, Milton Road, Cambridge CB4 1XJ
M. G. M. Rowland
Affiliation:
Medical Research Council Dunn Nutrition Unit, Keneba Laboratories, The Gambia Dunn Nutritional Laboratory, Milton Road, Cambridge CB4 1XJ
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Summary

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Water pollution was monitored in six Gambian village wells over a period of 8 months spanning the 5-month monomodal rains and the pre- and post-rains dry periods. Faecal coliform (FC) and faecal streptococci (FS) counts were high throughout and there was a massive increase associated with the onset of the rains, maximum counts exceeding 5 x 105/100 ml. This pattern was largely sustained throughout the rainy season. Some individual variations in patterns of pollution could be ascribed to well design, in particular lining of the shaft, but no well was protected from the seasonal increase in faecal pollution. The source of the increased pollution appeared to be a flushing in of faecal material of indeterminate or mixed human and animal origin, probably over considerable distances. Peaks of pollution not associated with rainfall episodes could have resulted from the practice of communal laundering in the near vicinity of the wells. Specific pathogens including Salmonella spp. were isolated only intermittently. Attention has been drawn to a problem complicating the standard method for assessing FC counts.

Type
Research Article
Information
Journal of Hygiene , Volume 83 , Issue 1 , August 1979 , pp. 143 - 150
Copyright
Copyright © Cambridge University Press 1979

References

Bradley, D. J. & Emurwon, P. (1968). Predicting the epidemiological effects of changing water sources. Part 1. A quantitative approach. East African Medical Journal 45, 284.Google Scholar
Buck, A. A., Anderson, R. I., Sasaki, T. T. & Kawala, K. (1970). In Health and Disease in Chad. Epidemiology, Culture and Environment in five villages. Baltimore and London: Johns Hopkins.Google Scholar
Budd, W. (1856). On intestinal fever: its mode of propagation. Lancet ii, 694.CrossRefGoogle Scholar
Budd, W. (1873). Typhoid Fever. London.Google Scholar
Drasar, B. S., Tomkins, A. M. & Feachem, R. G. (1978). Seasonal aspects of diarrhoeal disease. In Seasonal Dimensions to Rural Poverty. Susssex: Institute for Development Studies, Conference Proceedings.Google Scholar
Feachem, R. G. A. (1975). An improved role for faecal coliform to faecal streptococci ratios in the differentiation between human and non-human pollution sources. Water Research 96, 689.CrossRefGoogle Scholar
Feachem, R., Burns, E., Cairncross, S., Cronin, A., Cross, P., Curtis, D., Khalid Khan, M., Lamb, D. & Southall, H. (1978). Village water supplies in Lesotho. In Water, Health and Development, an Interdisciplinary Evaluation. London: Tri-Med.Google Scholar
Geldreich, E. E., Clarke, H. F., Huff., C. B. & Best, L. C. (1965). Fecal coliform-organism medium for the membrane filter technique. Journal of the American Water Works Association 57, 208.CrossRefGoogle Scholar
Gracey, M., Stone, D. E., Sutoto, & Sutejo, (1976). Environmental pollution and Diarrhoeal Disease in Jakarta, Indonesia. Journal of Tropical Paediatrics and Environmental Child Health 22, 18.Google Scholar
Holden, W. S. (1970). In Water Treatment and Examination. London: Churchill.Google Scholar
Kunkle, S. H. & Meiman, J. R. (1967). Water quality of mountain watersheds. Hydrology papers, no.21. Colorado State University, Fort Collins.Google Scholar
Kunkle, S. H. & Meiman, J. R. (1968). Sampling bacteria in a mountain stream. Hydrology papers, no.28. Colorado State University, Fort Collins.Google Scholar
Mcgregor, I. A. (1976). Health and communicable disease in a rural African environment. Oikos 27, 180.CrossRefGoogle Scholar
Mcgregor, I. A., Rahman, A. K., Thomson, A. M., Billewicz, W. Z. & Thompson, B. (1970). The health of young children in a West African (Gambian) village. Transactions of the Royal Society of Tropical Medicine and Hygiene 64, 48.CrossRefGoogle Scholar
Miles, A. A. & Misra, S. S. (1938). The estimation of the bactericidal power of the blood. Journal of Hygiene 38, 732.Google ScholarPubMed
Moore, H. A., De la cruz, E. & Vargas-mendez, O. (1965). Diarrhoeal disease studies in Costa Rica. IV. The influence of sanitation on the prevalence of intestinal infection and diarrhoeal disease. American Journal of Epidemiology 82, 162.CrossRefGoogle Scholar
Mossel, D. A. A., Koopman, M. J. & Jongerius, E. (1967). Enumeration of Bacillus cereus in foods. Applied Microbiology 13, 650.CrossRefGoogle Scholar
Morbidity And MortalityWeekly Report (1975). Follow up on outbreak of gastrointestinal illness at Crater Lake National Park, Oregon. 24, 261.Google Scholar
Morbidity And MortalityWeekly Report (1978). Waterborne Campylobacter gastroenteritis – Vermont. 27, 207.Google Scholar
Rowland, M. G. M. & Barrell, R. A. E. (1979). Ecological factors in gastroenteritis. Annals of Human Biology, in the press.Google Scholar
Snow, J. (1855). On the Mode of Communication of Cholera, 2nd ed.London: J. Churchill.Google Scholar
Tomkins, A. M., Drasar, B. S., Bradley, A. K. & Williamson, W. A. (1978). Water supply and nutritional status in rural Northern Nigeria. Transactions of the Royal Society of Tropical Medicine and Hygiene 72, 239.CrossRefGoogle ScholarPubMed
Tully, M. (1978). Nursing with a research unit in Africa. Nursing Times 74, 401.Google Scholar