天津地区主要河流中磷含量分布调查研究

The Research of the Distribution of Phosphorus Content in Major Rivers in Tianjin

[目的]考察天津地区主要河流富营养化的程度,了解造成水体富营养化的主要影响因素。[方法]调查研究天津主要河流中的磷含量分布,采用钼锑抗分光光度法测定水体中的磷含量。[结果]海河的磷含量远高于津河和御河。海河的平均磷含量为0.220mg/L,津河为0.082 mg/L,御河为0.110 mg/L。而当磷含量达到0.100 mg/L时,即属于富营养化水体。[结论]天津地区3条主要河流海河、津河、御河中磷含量基本都达到了水体发生富营养化的浓度,3条河流已经受到不同程度的污染。

[Objective] The aim of the study was to investigate the eutrophication of main rivers in Tianjin and found out the main factors inducing the eutrophication.[Method] The phosphorus distributing was investigated in the main rivers of Tianjin.The phosphorus content was measured by spectrophotometer.[Result] The phosphorus content of Haihe River was higher than Jinhe River and Yuhe River.The average phosphorus content of Haihe River was 0.220 mg/L,that of Jinhe River was 0.082 mg/L and Yuhe River was 0.110 mg/L.All of them were higher than the value of eutrophication standard,0.100 mg/L.[Conclusion] The phosphorus content of three main rivers in Tianjin were all eutrophicated and they were polluted at different degrees.