摘要
对某铁路辖区高铁站生活饮用水的化学和毒理指标进行调查分析,为铁路生活饮用水卫生监督与管理提供数据支撑。2022—2023年采用随机抽样方法采集该辖区高铁站候车室饮水区末梢水,根据相关标准进行检测。结果表明,该铁路辖区高铁站饮水水质现状良好,As、Cd、Cr^(6+)、Pb、Hg、氟化物、硝酸盐毒理指标和pH、Fe、Mn、Cu、Zn、氯化物、硫酸盐、溶解性总固体、总硬度、高锰酸盐指数(以O_(2)计)均未超过生活饮用水卫生标准。进一步分析发现A、B、C地区高铁站饮用水中氟化物、氯化物、溶解性总固体、总硬度有统计学差异(P<0.01)。通过Pearson相关性分析可知,溶解性总固体与总硬度之间存在强相关(r=0.940),与氯化物、硫酸盐间存在高度相关(r>0.8),与氟化物之间存在中度相关(r>0.6);总硬度与氯化物间存在高度相关(r>0.8),与硫酸盐、氟化物间存在中度相关(r>0.6);氯化物、硫酸盐、氟化物间分别存在中度相关(r>0.6);各指标与硝酸盐(以N计)存在低度相关或弱相关。溶解性总固体、总硬度、氯化物、氟化物、硫酸盐相互之间存在线性相关,检测说明该铁路辖区高铁站饮水水质良好,部分指标含量呈现A地区>B地区>C地区。
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,Cr^(6+),Pb,Hg,fluoride and nitrate,pH,Fe,Mn,Cu,Zn,chloride,sulfate,total dissolved solids,total hardness and permanganate index(calculated by O_(2))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.
作者
张艾梅
徐峰
王小群
刘树林
陈磊
程轶
ZHANG Aimei;XU Feng;WANG Xiaoqun;LIU Shulin;CHEN Lei;CHENG Yi(Nanjing Disease Prevention and Control Institute,China Railway Shanghai Bureau Group Co.,Ltd.,Nanjing Jiangsu 210042,China)
出处
《铁路节能环保与安全卫生》
2024年第2期39-43,共5页
Railway Energy Saving & Environmental Protection & Occupational Safety and Health
关键词
生活饮用水
化学指标
毒理指标
检测分析
Drinking water
Chemical index
Toxicological index
Detection and analysis
