Spatial geochemical variation of major and trace elements in the marine sediments of Mumbai Harbor Bay

The resulting concentration data sets of major (Na, K, Mg, Ca and Fe) and trace elements (Cu, Ni, Co and Mn) in bed and suspended sediments were used to evaluate the enrichment factor for anthropogenic influences and principal component analysis for identifying the origin of source contributions in...

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Bibliographic Details
Published in:Environmental earth sciences 2013-12, Vol.70 (7), p.3057-3066
Main Authors: Kumar, Ajay, Singhal, R. K, Rout, Sabyasachi, Ravi, P. M
Format: Article
Language:English
Subjects:
anthropogenic activities
Biogeosciences
calcium
cobalt
Contaminated sediments
copper
data collection
Earth and Environmental Science
Earth Sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Environmental Science and Engineering
Exact sciences and technology
Geochemistry
Geology
Hydrology/Water Resources
iron
magnesium
manganese
marine sediments
nickel
Original Article
Pollution, environment geology
principal component analysis
Principal components analysis
seawater
sediment contamination
sodium
Terrestrial Pollution
Trace elements
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Summary:The resulting concentration data sets of major (Na, K, Mg, Ca and Fe) and trace elements (Cu, Ni, Co and Mn) in bed and suspended sediments were used to evaluate the enrichment factor for anthropogenic influences and principal component analysis for identifying the origin of source contributions in the studied area. Normalization of metals to Fe indicated that high enrichment factors in the bed sediment were in the order of Co > Cu > Na > Ca > Ni except Mg, K and Mn while for suspended sediments, only Co has a high enrichment factor. High enrichment of Co and Cu reflected the contamination of sediments from anthropogenic sources. The high influence of Na and Ca in sediments may be caused for seawater salinization factor. A significant positive correlation among enrichment factors of various elements of interest suggests a common origin/identical behavior during transport in the sediment system.
ISSN:1866-6280
1866-6299
DOI:10.1007/s12665-013-2366-3