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通过对1995~2004年上海市嘉定区内各个不同类型的污染控制断面 BOD_5、COD_(Cr)监测结果的统计,得出各年的 B/C 值及其10年的均值。这些数据一定程度上反映了嘉定区整体水系的有机污染状况。进一步研究发现,在 B/C 值稳定的地表水中,BOD_5与 COD_(Cr)有良好的相关性,此相关性对以后区域水系中断面地表水 COD_(Cr)、BOD_5的数据质保提供了借鉴。
Through the statistics of BOD_5 and COD_ (Cr) monitoring results of different types of pollution control sections in Jiading District of Shanghai from 1995 to 2004, the B / C values and their 10-year mean values of each year were obtained. These data to some extent reflect the overall water system in Jiading District, organic pollution. Further study found that there was a good correlation between BOD_5 and COD_ (Cr) in surface water with stable B / C value, and this correlation could provide references for the data quality assurance of surface water Cr_ (Cr) and BOD_5 in the future.