Investigation and Analysis of Chemical and Toxicological Indexes of Drinking Water in High-speed Railway Station
Through the investigation and analysis of chemical and toxicological indexes of drinking water in high-speed railway station,this paper provides data support for sanitary supervision and management of drinking water in railway.From 2022 to 2023,the peripheral water in the drinking water area of the waiting room in high-speed railway station was collected by random sampling method,and tested according to relevant standards.The results show that the drinking water quality of the railway station is good,and the toxicological indexes of As,Cd,Cr6+,Pb,Hg,fluoride and nitrate,pH,Fe,Mn,Cu,Zn,chloride,sulfate,total dissolved solids,total hardness and permanganate index(calculated by O2)do not exceed the hygienic standard of drinking water.Further analysis showed that fluoride,chloride,total dissolved solids and total hardness in drinking water of high-speed railway station in A,B and C areas were statistically different(P<0.01).Pearson correlation analysis shows that there is a strong correlation between total dissolved solids and total hardness(r=0.940),a high correlation between dissolved solids and chloride and sulfate(r>0.8),and a moderate correlation between dissolved solids and fluoride(r>0.6);The total hardness is highly correlated with chloride(r>0.8)and moderately correlated with sulfate and fluoride(r>0.6);There are moderate correlations among chloride,sulfate and fluoride(r>0.6);There is a low or weak correlation between each index and nitrate(calculated by N).There is linear regression among total dissolved solids,total hardness,chloride,fluoride and sulfate.The detection shows that the drinking water quality in high-speed railway station of this railway area is good,and the content of some indexes is in the order of A area>B area>C area.
Drinking waterChemical indexToxicological indexDetection and analysis
NETL
NSTL
万方数据
维普
