Dynamics of trace metals in sediments of a seasonally hypoxic coastal zone in the southeastern Arabian Sea
Oceanologia(2022)
Abstract
•The impact of hypoxia on the bioavailability of trace metals in the sediments of mud bank was investigated.•Fe and Mn exhibited a gradual decrease due to the reductive dissolution of (oxy) hydroxides.•Ni, Zn and V showed a substantial decrease concerning oxygen deficiency, whereas Cr showed an enrichment.•Ni and Cr exhibited strong affinities towards organic matter and sulfides.•Pb and Zn showed relatively high affinity towards the hydroxide phase.
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Key words
Geochemistry,Trace metals,Upwelling,Hypoxia,Organic matter,Bioavailability
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