沂河沂源段化学与生化需氧量相关性分析

Correlation Analysis between Chemical and Biochemical Oxygen Demand in Yiyuan Section of Yi River

化学需氧量与生化需氧量均为反映水中污染程度的常用指标,从原理上看,两者存在一定的相关性。本文选取沂河沂源段干流及支流上、中、下游共5个站点,使用近年水质监测资料对沂河沂源段BOD5与CODCr的相关性进行了分析。

Chemical oxygen demand(COD)and biochemical oxygen demand(BOD)are common indicators to reflect the degree of water pollution.In principle,there is a certain correlation between the two ones.In this paper,the correlation between BOD5 and CODCr in the Yiyuan Section of the Yi River was analyzed by using water quality monitoring data from five stations in the upper,middle and lower reaches of the main stream and tributaries of the River.