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引论饮用水的主要危险是水源受污水或人类排泄物的污染,但也不能忽视动物粪便的污染。常有因饮水受污染而引起疾病暴发的报导。尼罗河三角洲腹泻疾病的发病率很高,提供安全饮用水是个极为紧迫的全国性问题,对那些只有设计低劣的供水系统和连最基本的质量管理设施也没有的居民区来说尤为重要。
Introduction The main danger of drinking water is the contamination of water sources by sewage or human excrement, but also the pollution of animal manure. Often reports of disease outbreaks caused by contaminated drinking water. The high incidence of diarrheal diseases in the Nile Delta and the provision of safe drinking water are extremely pressing national issues and are particularly important for those neighborhoods that have poorly designed water systems and do not have the most basic quality management facilities.