重庆市南川区2019年饮用水水质监测结果相关性分析

Correlation analysis of drinking water quality testing in Nanchuan,Chongqing in 2019

目的分析南川区饮用水水质监测理化指标间相关性。方法对2019年南川区饮用水溶解性总固体(TDS)、氯化物、总硬度、硫酸盐及氟化物监测分析结果进行相关性分析。结果南川区2019年饮用水监测数据中,TDS与氯化物、总硬度及硫酸盐均呈显著正相关,与氟化物呈负相关,相关系数分别为0.98683、0.99790、0.95552、0.36205。结论水样监测指标相关性分析可作为监测数据质量控制方法,评价监测结果准确性、合理性,进而指导监测工作实践。

Objective To investigation the correlation between physical and chemical indicators of drinking water quality monitoring in Nanchuan district.Methods Monitoring data of drinking water quality in Nanchuan district in 2019 were collected to analyze the correlation between total dissolved solids(TDS)and total hardness,chloride,sulfate and fluoride.Results In the water quality monitoring data of Nanchuan district in 2019,the TDS were significantly positively correlated with chloride,sulfate and total hardness,and negatively correlated with fluoride,with the correlation coefficients of 0.98683,0.99790,0.95552 and 0.36205.Conclusion Correlation analysis of different characteristics of drinking water monitoring could be used for the quality control of monitoring data,to evaluate the accuracy and rationality of the monitoring results,and to guide the monitoring practice.