期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：199
期号：3
页码：032082
DOI：10.1088/1755-1315/199/3/032082
语种：English
出版社：IOP Publishing
摘要：This issue studied the 16 harmful elements changes in the stagnated drinking water in kitchen faucets. The experiment tested the conductivity, pH and harmful element concentration of the faucets' stagnated drinking water and the source water. The experiment analyzed the factors that may affect the precipitation of harmful elements from faucets. The sample water source included tap water, well, mountain springs, was tested by ICP-MS. Depending on the result, the median concentration of Pb, Ni, Cu, Se, Mo, Sb, Tl increased markedly. The statistical analysis by SPSS 20.0 shows that the concentrations of Ni, Cu, Mo, Cd, Sb, Tl, Pb were statistically significant differences between stagnated drinking water and source water. And the conductivity, pH and the faucets age have no impact on the faucets precipitation. Stagnation time can effect on the Ni, Sb and Tl precipitation of faucets. There is a significant correlation between the precipitations of some kinds of elements we researched, possibly synergistic precipitation. It can infer that faucets material affects the harmful elements precipitation
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