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This study examined the sanitary conditions of public boreholes and hand dug wells water in relation to pathogenic bacteria isolated in water samples. To assess the suitability of drinking water, sanitary inspection of surroundings of the sources was conducted, membrane filtration technic was used to trap the microorganisms in the water sample and other standard microbiological technics were applied to check the heterotrophic plate counts, total coliforms, fecal coliforms and some pathogenic bacteria in the samples. It was observed that there were no delineated protection zones around many boreholes (61.19%) and in almost all hand dug wells;thus, hand dug wells were pruned to more contamination than boreholes. Heterotrophic plate counts of boreholes were significantly different between (p < 0.0001) zones in dry and rainy seasons. Total coliforms per 100 ml varied significantly (p < 0.001) between the two seasons both in boreholes and hand dug wells. Fecal coliforms were significantly absent in some boreholes, but significantly present in all hand dug wells with the presence of <i>E. coli</i> 157H in some. Risk assessment of factors contributing to water contamination showed that: pumps manipulation with feet, other sources of contamination such as wastewater dumps, within 10m were significantly associated to boreholes contamination with <i>Salmonella</i> spp, <i>Staphylococcus aureuse</i>, fecal coliform (p = 0.01);in hand dug wells, presence of latrine or septic tank soak-away within 10 m of the wells, poor depth and lack of internal lining, uncapped wells, presence of trees near the wells, animal and birds feces, were significant and associated to contamination with <i>Salmonela</i> spp., <i>B. cepaceae, S. aureus E. coli</i> 1 (p < 0.05). Generally water collection points are marked with very poor sanitary conditions and this situation may not change unless the contaminating risk factors are fixed and sanitary measures are taken.
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篇名 Risk Factors Contributing to Microbiological Contamination of Boreholes and Hand Dug Wells Water in the Vina Division, Adamawa, Cameroon
来源期刊 微生物学(英文) 学科 地球科学
关键词 Boreholes Hand Dug Wells Risk Factors Sanitation E. coli 157H Public Health
年,卷(期) 2021,(2) 所属期刊栏目
研究方向 页码范围 90-108
页数 19页 分类号 X70
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Boreholes
Hand
Dug
Wells
Risk
Factors
Sanitation
E.
coli
157H
Public
Health
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研究分支
研究去脉
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期刊影响力
微生物学(英文)
月刊
2165-3402
武汉市江夏区汤逊湖北路38号光谷总部空间
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89
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0
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