本文检验了饮用同一水源的居民从水中摄取相似无机物的假说。采集了109名成年受验者于24小时内全部饮水的重复样品,其中包括为调制饮料而煮沸的水,研究结果表明,受验者每日饮水量的变异可能大于10倍。此外,还发现由水源地或家庭自来水管采袋的24小时水样中的无机物浓度变化很大,这些水源地和家庭自来水管是为流行病学研究 This article examines the hypothesis that residents who consume the same source of water consume similar inorganics from water. A total of 109 repeated samples of adult subjects drinking water over a 24-hour period, including water boiled to brew beverages, were collected and the results showed that the subject’s daily variation in drinking water may be greater than 10-fold. In addition, the concentration of inorganic species in 24-hour water samples taken from water mains or from domestic tap water pipes has also been found to vary significantly, and these sources and domestic water mains are for epidemiological studies