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Assessment of Godavari estuarine mangrove ecosystem through trace metal studies

IR@NIO: CSIR-National Institute Of Oceanography, Goa


Field	Value

Creator	Ray, A.K. Tripathy, S.C. Patra, S. Sarma, V.V.

Date	2006-07-11T04:50:04Z 2006-07-11T04:50:04Z 2006

Identifier	Environment International, vol.32(2), 219–223pp. http://drs.nio.org/drs/handle/2264/196

Description	Trace metals (Fe, Mn, Cu, Co, Ni. Pb, Cd & Cr) analyses in particulate matter and sediments were carried out at sixteen different stations in the Godavari mangrove ecosystem covering the three regions viz., Kakinada (KKD) bay, Goutami-Godavari estuary (GGE) and Coringa & Gaderu mangrove environments (CGME). High concentrations of trace metals in particulate matter and in sediments in the mangrove environment compared to the KKD bay and GGE region reveals the significance of mangrove environment as a source for these trace metals. The significant correlations observed between several couples of metals in different regions as well as between numbers of heavy metals (Fe, Mn, Zn) with Total Suspended Matter (TSM) in particulate organic matter indicating that complexation with organic materials may play an important role in the distribution pattern of these metals. Significant correlations between organic carbon (OC) and Cr, Co, Pb, Cu and Mn in sediments of all the three regions indicate that organic matter is acting as a metal carrier. The values of Pollution Load Index (PLI) were found to be very low, and varied between 0.34-0.60 in KKD bay, 0.47-0.97 in GGE and 0.62-1.03 in CGME indicating that this estuarine ecosystem is not a pollution concern in the present scenario.

Format	183407 bytes application/pdf

Language	en

Publisher	Elsevier

Rights	An edited version of this paper was published by Elsevier. Copyright [2006] Elsevier

Subject	Trace metals Water quality

Title	Assessment of Godavari estuarine mangrove ecosystem through trace metal studies

Type	Article