A preliminary study on bacteria counts in relation to COD and pH of Min River water

Bacteria counts,chemical oxygen demand(COD) and pH of the water samples from 11 Min River monitoring sites were tested regularly for a preliminary correlation analysis.The results showed that the cultivated bacteria and total bacteria counts at the Jianxi River and Zhongyan Pier sites were higher than the others.In general,the upstream COD tended to be the highest,followed by midstream and downstream.The regression analysis by SPSS software indicated that there was a significant correlation among the bacteria counts,COD and pH of water samples in Min River.