Variations of harmful elements in kitchen faucets drinking water stagnation

2018 1st International Conference on Environment Prevention and Pollution Control Technology

生态环境科学

Huang, Tingting^1,2,3

Nanan Testing Institute of Quality and Metrology, Quanzhou Fujian, China^1

National Quality Supervision and Inspection Center of Plumbing and Sanitary Ware (Fujian), Quanzhou Fujian, China^2

Nanan Market Supervision and Management Law Enforcement, Quanzhou Fujian, China^3

关键词: Harmful elements;    Median concentration;    Source waters;    Spss 20.0;    Statistically significant difference;    Tap water;    Water source;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/199/3/032082/pdf
DOI  :  10.1088/1755-1315/199/3/032082

学科分类：环境科学（综合）

来源: IOP

【 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.0copy; Published under licence by IOP Publishing Ltd.