论文部分内容阅读
在印度某些地方的一次广泛现场调查中发现饮用水中大肠杆菌的存在与产H_2S的微生物有关。本文报告一种简单、快速和花钱少的现场检验方法——即根据水中发现H_2S,将被粪便污染的饮用水过筛。这种新方法显示与标准的大肠杆菌指数法(MPN)相一致。在Gwalior市的一次水型“甲型肝炎”爆发过程中,用其在现场检查粪便污染和检验水质时,证明它是十分有效的。此法既简便又可靠,筛选农村的供水以及当资金来源、时间、人力和检验设备受限制时尤为有用。
In a widespread field survey in some parts of India, the presence of E. coli in drinking water was found to be associated with H 2 S-producing microorganisms. This article reports a simple, fast, and inexpensive on-site test-sifting drinking water contaminated with faeces based on the discovery of H2S in water. This new method shows consistent with the standard E. coli index method (MPN). It proved to be very effective in checking out faecal contamination and testing of water quality during a waterborne “Hepatitis A” outbreak in Gwalior. This method is both simple and reliable. It is especially useful when screening water supplies in rural areas and when funding, time, manpower and inspection equipment are limited.