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Assessment of Godavari estuarine mangrove ecosystem through trace metal studies

DRS at CSIR-National Institute of Oceanography

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Title Assessment of Godavari estuarine mangrove ecosystem through trace metal studies
 
Creator Ray, A.K.
Tripathy, S.C.
Patra, S.
Sarma, V.V.
 
Subject Trace metals
Water quality
 
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.
 
Date 2006-07-11T04:50:04Z
2006-07-11T04:50:04Z
2006
 
Type Journal Article
 
Identifier Environment International, vol.32(2), 219–223pp.
http://drs.nio.org/drs/handle/2264/196
 
Language en
 
Rights An edited version of this paper was published by Elsevier. Copyright [2006] Elsevier
 
Format 183407 bytes
application/pdf
 
Publisher Elsevier