Transition Metals and Heavy Metal Speciation.

Achterberg, Eric P. , Browning, Thomas J. , Gledhill, Martha and Schlosser, Christian (2019) Transition Metals and Heavy Metal Speciation. In: Encyclopedia of Ocean Sciences, 3rd edition. ; 1 , ed. by Cochran, J. Kirk. Academic Press, London, pp. 218-227. ISBN 978-0-12-813081-0 DOI 10.1016/B978-0-12-409548-9.11394-6.

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Transition metals and trace metals enter the ocean via river runoff, wind-blown dust, diffusion from sediments, hydrothermal inputs and anthropogenic activities. Some of these metals (e.g., Fe, Mn, Co) are essential micronutrients needed by phytoplankton. Micronutrient metals, as well as metals like Hg, Pb, and Ag, which have no biochemical role, can be toxic at enhanced concentrations. The chemical and physical speciation of the metals determines their geochemical behavior and availability to marine microorganisms. Complexation by inorganic and organic ligands hence has a strong influence on metal behavior. The GEOTRACES Programme is transforming our global view of metal behavior, sinks and sources in the ocean, through detailed observations along full ocean sections.

Document Type: Book chapter
Keywords: Bioavailability, Cobalamin, Copper, GEOTRACES, Heavy metals, Iron, Limitation, Metal complexation, Ocean productivity, Physico-chemical, Speciation, Scavenging, Siderophores, Speciation, Transition metals
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-CH Chemical Oceanography
DOI etc.: 10.1016/B978-0-12-409548-9.11394-6
Date Deposited: 14 Jan 2020 15:26
Last Modified: 14 Jan 2020 15:27

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