Monjour L, Volta C, Uwechue N, de Lorenzi G
Laboratoire de Parasitologie Expérimentale, Faculté de Médecine, Pitié-Salpétrière, Paris, France.
Ann Soc Belg Med Trop. 1990 Dec;70(4):311-5.
Most tropical water springs are polluted with microbial agents such as faecal coliforms and streptococci, so for the present and the forseeable future, boreholes are considered to be the most appropriate system for reducing the bacterial contamination of water. However, from source to consumer, safe drinking water usually becomes polluted with faecal bacteria. This observation which calls into question the success of the International Drinking Water Supply and Sanitation Decade should stimulate efforts to provide a reliable means of water purification. The use of traditional filters prepared with sand, gravel and charcoal has been proposed but our results reveal that they give no guarantee for the purification of bacteria-polluted water.
大多数热带泉水都受到诸如粪大肠菌群和链球菌等微生物的污染，因此在目前以及可预见的未来，钻孔被认为是减少水污染的最合适系统。然而，从水源到消费者，安全饮用水通常会被粪便细菌污染。这一观察结果对国际饮用水供应和卫生十年的成功提出了质疑，应该促使人们努力提供一种可靠的水净化方法。有人提议使用由沙子、砾石和木炭制成的传统过滤器，但我们的结果表明，它们并不能保证净化被细菌污染的水。
