Heavy Metal Assessment in Water, Sediment and Biota from Ennore Creek and Vellar Estuary, Southeast India

The impact of anthropogenic activities on the accumulation heavy metals in water, sediment and fish both Ennore creek Vellar estuary were observed this study. Water sample collected from sampling stations was just only creek. Sediment samples subjected to a total digestion technique (HNO3 – HCl HF conc.) analysed using spectrophotometer. Four elements Cu, Cd, Zn Pb (trace elements) determined. Heavy metal concentration significantly higher than estuary. order levels water is Cu > Cd sequence Cd. showed following sequential order: estuary: Pb. In creek, muscle tissue order, O. mosambique (7.3mg/g), M. cephalus (7.13mg/g) A. djedaba (6.76 mg/g). high (5.25 mg/g) followed by (4.63mg/g) (4.24mg/g). Based overall average present different organs samples, trend are as follows: Cu: Muscle liver gills Zn: gills.