Heavy Metal Accumulation in Molluscs and sediment from Uppanar Estuary, Southeast Coast of India
2013
The concentration of (Cd, Co, Cu, Fe, Mg, Mn, Pb, Zn) were analyzed in sediments, shells and tissues of the molluscs
Meretrix meretrix, Crassostrea madrasensis and Cerithidea cingulata from two stations of Uppanar Estuary, southeast
coast of India. The concentrations of the heavy metals analyzed exhibited variations in sediments, tissues and shells of the
study animal from all the two stations. Zn and Cu concentration were below the alarming level. In the present study Mg
content was found to be higher in shell and tissue. The Fe content was found to be higher in sediment in both the stations,
but it was the second highest metal recorded in shell and tissue. Cd and Co was minimum accumulated of all the metals
estimated in sediment and animal whereas Mg was recorded maximum (548.3 ± 5) in C. cingulata shell. All the metals analysed
were within the safety level. The combined correlation of both the stations between the sediment vs. sediment, tissue
vs. tissue, shell vs. shell were positively correlated and significant at P < 0.001 and P < 0.05 level. In addition to continuous
contribution of pollutants due to human activities, industries may have a significant contribution of these metals in all the
stations. As suggested by many reported studies found in the literature, regular biomonitoring of heavy metal concentrations
at these sites is needed since Meretrix meretrix, Crassostrea madrasensis are a popular commercial bivalve in India.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
11
References
19
Citations
NaN
KQI