Distribution and partitioning of trace metals (Cd, Cu, Ni, Pb, Zn) in Galveston Bay waters

Distribution and partitioning of trace metals (Cd, Cu, Ni, Pb, Zn) in Galveston Bay waters

The distribution of several trace metals has been studied in the surface waters of Galveston Bay, Texas, in order to assess the impact of complexation with organic and reduced sulfur species on the partitioning of trace metals between particulate and aqueous species. The distribution of trace metals...

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Veröffentlicht in:Marine chemistry 2002-04, Vol.78 (1), p.29-45
Hauptverfasser: Tang, Degui, Warnken, Kent W, Santschi, Peter H
Format: Artikel
Sprache:eng
Schlagworte:
Earth sciences
Earth, ocean, space
Exact sciences and technology
External geophysics
Geochemistry
Marine
Marine and continental quaternary
Mineralogy
Physical and chemical properties of sea water
Physics of the oceans
Silicates
Surficial geology
Water geochemistry
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Zusammenfassung:The distribution of several trace metals has been studied in the surface waters of Galveston Bay, Texas, in order to assess the impact of complexation with organic and reduced sulfur species on the partitioning of trace metals between particulate and aqueous species. The distribution of trace metals in the filter-passing fraction (Cu>Cd>Zn>Pb>Mn>Fe, while an increasing trend was found in the same sequence for the acid-leachable fractions. The average values of K d1, the particle-water partition coefficient, expressed as the ratio of weak acid-leachable particulate fractions to the filter-passing fractions, increased in the order Ni
ISSN:0304-4203
1872-7581
DOI:10.1016/S0304-4203(02)00007-5