自来水是维持人们生存的最基本物质,但最近有媒体报道说,自来水从水厂出来时是合格的,到住户家时却被污染了,于是有些人开始怀疑这水还能不能喝,更有人说,这种水喝了会致癌?那么——历时3年,清华大学研究人员在全国23个省、44个城市和城镇、155个点位采集了164个水样。涵盖水厂 Although tap water is the most basic substance to maintain people’s survival, some media reports recently said that tap water was qualified when it came out of the waterworks and was contaminated by households. Some people began to wonder whether this water could drink or not So, after 3 years of drinking water, researchers at Tsinghua University collected 164 water samples at 155 sites in 23 provinces, 44 cities and towns across the country. Covered water plant