Special Issue "Metallic Elements in Sediments"

A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Environmental Mineralogy and Biogeochemistry".

Deadline for manuscript submissions: 30 June 2019

Special Issue Editors

Guest Editor
Prof. Dr. Alexandra Courtin-Nomade

Groupement de Recherche Eau Sol Environnement, Université de Limoges, 123 avenue Albert Thomas, 87060 Limoges Cedex, France
Website | E-Mail
Interests: environmental mineralogy; mine waste characterization; sediments; dam reservoirs; metallic contamination; mineral-water interfaces; geochemistry
Guest Editor
Prof. Dr. Cécile Grosbois

GéoHydrosystèmes Continentaux, Université de Tours, EA 6293 GéHCO, Parc Grandmont, 37200 Tours, France
Website | E-Mail
Interests: dynamics of trace elements during the solid transport in rivers: spatio-temporal variations, transfers to waters and solid speciation

Special Issue Information

Dear Colleagues,

This Special Issue addresses all research that deals with metallic elements in sediments. Fluvial systems are among the most sensitive compartments of the surface environment, namely the “critical zone”, regarding contamination. Contaminations can take various forms and inorganic contamination can be of natural origin or may directly reflect human activities. In this latest case, contaminants, either metal or metalloids, are mainly linked to past or present agricultural, industrial or mining-associated activities. They may affect the solid fraction, as well as interstitial and surface waters. When sediment quality is questioned, numerous outlines emerged such as the sustainable management of the impacted river, the use of water resources, potential transfer to living organisms, etc., and how to understand these outlines. Thus, environmental studies must deal with the complexity of numerous processes at various interfaces. Some ways to better understand contaminations lie in the use of a wide range of tools at various scales. Among them, the determination of the speciation, mineralogy, toxicity of the contaminants helps to better estimate the degree of impact and sometimes the way to better constrain it.

Prof. Dr. Alexandra Courtin-Nomade
Prof. Dr. Cécile Grosbois
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Minerals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • metals and metalloids
  • sediments
  • fluvial systems
  • quality
  • metals-bearing phases stability
  • solid speciation
  • contamination evaluation
  • anthropogenic impacts

Published Papers (1 paper)

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Research

Open AccessArticle
Distribution and Risk Assessment of Heavy Metals in Sediment from Bohai Bay, China
Minerals 2019, 9(2), 111; https://doi.org/10.3390/min9020111
Received: 24 December 2018 / Revised: 9 February 2019 / Accepted: 10 February 2019 / Published: 14 February 2019
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Abstract
Sediment core and porewater samples from the Western coastal tidal flat in Bohai Bay, China, were collected for meals and physical-chemical properties analysis. The vertical distribution characteristics of eight metals along the core was investigated based on 137Cs and 210Pb radionuclide [...] Read more.
Sediment core and porewater samples from the Western coastal tidal flat in Bohai Bay, China, were collected for meals and physical-chemical properties analysis. The vertical distribution characteristics of eight metals along the core was investigated based on 137Cs and 210Pb radionuclide dating. The chemical fractions of six metals (Cu, Pb, Zn, Ni, Mn and Cd) were also measured based on the modified European Community Bureau of Reference (BCR) sequential extraction procedures to better understand the mobility and bioavailability of these metals in the sediment. In addition, geoaccumulation index (Igeo) and risk assessment code (RAC) are used to assess risk status of these metals in the environment. 210Pb measurement indicates a sedimentation rate of about −1.87 cm∙year−1. The metals Cu, Zn, Pb and Ni show similar vertical distributions throughout the core, while Mn and Cd show different distribution patterns. Ni, Cu, Pb and Zn are strongly associated with the residual fraction while Mn and Cd are dominant in the acid-soluble fraction. According to the estimated diffusive fluxes, the Zn ions were the most mobilized, followed by Cu, Ni, Pb, and to a lesser extent Cd. The result of Igeo shows that Ni in sediments does not reflect any pollution, and Cu, Pb and Zn are in a level from unpolluted to modest polluted throughout the core. Mn and Cd have obvious anthropogenic sources. Based on the RAC, Cd and Mn pose a high to very high risk to the local environment, respectively, due to the significant percentage of exchangeable fraction. Clay content is significantly positively correlated with Ni, Cu, Al and Fe, and Cu, Pb, Zn and Ni might originate from the same sources or be influenced by similar geochemical processes. River runoff and atmospheric deposition are important sources for heavy metals, and since 1998, domestic sewage discharge might have had an important influence on the source of heavy metals (except for Cd and Mn). Full article
(This article belongs to the Special Issue Metallic Elements in Sediments)
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