Geochemical speciation and ecological risk assessment of selected metals in the surface sediments of the northern Persian Gulf.

Authors :: Neyestani MR
Bastami KD
Esmaeilzadeh M
Shemirani F
Khazaali A
Molamohyeddin N
Afkhami M
Nourbakhsh S
Dehghani M
Aghaei S
Firouzbakht M
Source :: Marine pollution bulletin [Mar Pollut Bull] 2016 Aug 15; Vol. 109 (1), pp. 603-611. Date of Electronic Publication: 2016 May 19.
Publication Year :: 2016
Abstract: The present study aimed to geochemical speciation of metals in the surface sediments of the northern Persian Gulf. Metal contents in the sediment were observed in the order: Al>Fe>Cr>Ni>V>Zn>Cu>Co>As>Pb>Cd. The results of sequential extraction procedure revealed that all metals were predominantly associated with the residual fraction. Among the metals, Cu and As exhibited higher bioavailability. The risk assessment code (RAC) indicated that Cu, As and Cd had medium environmental risk at some sampling sites. Based on enrichment factor (EF), Cd and As had moderate to significant enrichment.<br /> (Copyright © 2016 Elsevier Ltd. All rights reserved.)

Subjects :: Biological Availability
Ecology
Indian Ocean
Risk Assessment
Environmental Monitoring methods
Geologic Sediments chemistry
Metals, Heavy analysis
Water Pollutants, Chemical analysis

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