ASSESSMENT OF URBAN WATER BODIES CONTAMINATION USING POLLUTION INDICATION BACTERIA

This studvwas conducted in water bodies in a Jiangbei district of Changde Of Changde City.Densities of indication bacteria were related closely to BOD5 and to comprehensive index P,withcorrelation coefficients being 0.78 and 0.70 respectively(p0.01).Similar assessment resultswere obtained in terms of fecal coliform(FC)densities and comprehensive pollutionindex. Therefore, the indication bacteria can be considered as important parameters forcomprehensive assessment on the pollution of urban wastewater.The total coliform(TC)densitv exceeded the state standard III degree of surface water quality by 4 orders of magnitude, and according to WHO recreational water standard, the FC density exceeded by 3 orders of magnitude. Furthermore,the enteric pathogenic bacteria such as Salmonella sp. werefound in Huchenghe. Bacterial contamination in other water bodies including a lake in BinLake Park was serious.Only suburban Liuye Lake was one of the slightly polluted localities.