2018
DOI: 10.1144/geochem2018-054
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Potential bioavailability assessment and distribution of heavy metal(oids) in cores from Portman Bay (SE, Spain)

Abstract: A total of 120 sediments from 12 cores of Portman Bay (SE Spain) were studied to assess the degree of contamination and ecological risk related to potentially toxic elements (PTEs) by combining a geochemical and mineralogical characterisation with the assessment of the bioavailable forms of trace metals (As, Cd, Cu, Fe, Pb, Zn). With this purpose, sediment contamination was assessed by total and water-soluble content, and potential bioavailability by the simultaneously extracted metals and acid-volatile sulphi… Show more

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Cited by 4 publications
(4 citation statements)
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“…These sulphates, which include Fe +3 and Al +3 , as well as Fe +2 , Mg +2 , and Zn +2 , along with varying amounts of water molecules, appear during the dry season of the year. The most frequently identified phases were copiapite, coquimbite, and bianchite [ 33 , 38 ]. These efflorescences can retain varying amounts of potentially toxic elements in their structure and arise due to capillarity and upward washing when there is no drainage.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…These sulphates, which include Fe +3 and Al +3 , as well as Fe +2 , Mg +2 , and Zn +2 , along with varying amounts of water molecules, appear during the dry season of the year. The most frequently identified phases were copiapite, coquimbite, and bianchite [ 33 , 38 ]. These efflorescences can retain varying amounts of potentially toxic elements in their structure and arise due to capillarity and upward washing when there is no drainage.…”
Section: Resultsmentioning
confidence: 99%
“…Various publications have discussed the recovery options for Portman Bay, including studies and experiments related to the remediation of runoff waters that mix with acid mine drains and reach the beach area [ 10 , 15 , 33 ]. The meteoric waters are contained within the exposed section of the bay, resulting in the formation of a shallow lagoon during wet periods.…”
Section: Introductionmentioning
confidence: 99%
“…Their impact, too, is closely related to wind erosion because their very fine texture and low density characteristics confer on them a high degree of erosionability. They are also closely related to the generation of acid drainage water (Figure 7) [50,51,53,55,60,61,[81][82][83][84].…”
Section: Wind Dispersionmentioning
confidence: 99%
“…Coastal marine environments are key repository environments for natural or anthropogenic inputs of particulate material, particularly metals. These inputs, mainly of fluvial and atmospheric origin, can be stored in coastal sediments (e.g., [1][2][3][4][5]), reworked, and partly exported to the open sea by multiple hydrodynamic processes [6][7][8][9][10]. Because of the reduced solubility of metals in the common pH and redox conditions of oceanic waters, the dominant part of trace metals is transported in association with particulates (in the following: particulate trace metals, PTM).…”
Section: Introductionmentioning
confidence: 99%