摘要
长江是南京市最主要的供水水源地,为减缓水环境压力,分析流域水污染物排放分布特征和污染来源,计算入江总磷通量有着重要意义。根据收集到的南京地区各区县的32个雨量站1962~2015年的逐日降雨量资料计算,2014年南京市的环境统计资料,对南京市入江总磷进行了计算分析,对通量法和污染物负荷法计算结果进行了对比校核,根据通量法以及污染物负荷法计算的入江总磷通量分别为为1 972.87t,为1 866.67t,计算误差为5.4%。
The Yangtze River is the most important water source in Nanjing. To alleviate water environment pressure,it is of great significance to analyze the distribution characteristics and source of water pollutants,and calculate the total phosphorus flux of rivers in river basin. According to the collected daily rainfall data of 32 rainfall stations in various districts of Nanjing from1962 to 2015,the environmental statistics data of Nanjing in 2014,this paper calculated and analyzed the total phosphorus in the river of Nanjing,and the calculation results of the Flux method and pollutant load method are compared and checked,the total phosphorus flux in the river calculated by flux method and pollutant load method is 1972. 87 t and 1866. 67 t,respectively,and the calculation error is 5. 4%.
出处
《四川环境》
2017年第5期59-65,共7页
Sichuan Environment
基金
江苏省环保科研课题长江干流江苏段总磷污染现状来源及控制对策研究(2015035)
关键词
污染物通量
方法对比
总磷
Pollutant fluxes
comparative study
total phosphorus
