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Trace Metal Contamination in Estuarine and Coastal Environments
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Trace Metal Contamination in Estuarine and Coastal Environments

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312).

Deadline for manuscript submissions: closed (31 March 2016) | Viewed by 14028

Special Issue Editor

Dr. Olivier Radakovitch

E-Mail Website
Guest Editor
Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SRTE-LRTA, 13115 Saint-Paul-les Durance, France
Interests: radionuclides; trace metals; coastal zone; pollution; sediment and sedimentary processes

Special Issue Information

Dear Colleagues,

Coastal zones are the most important marine areas in terms of biodiversity and ecosystem services, but they are also the most impacted by human. Among the various pressures, inputs of trace metals in these areas remain a global concern because of their numerous sources including river, cities, ports, industries, waste disposal, mining areas, etc. These contaminants are the most ubiquitous in the coastal zone, and high concentrations have been observed in numerous places, whatever the level of development of a country. This Special Issue is dedicated to studies from laboratory experiment, field analyses, or modeling concerning trace metal behavior in the coastal zone, from dissolved and particulate phase up to the highest trophic levels. The following topics are more particularly encouraged:

-reconstruction of historical contamination from sediment archives or surveys
-impact of trace metal on marine organisms (including toxicity and genotoxicity studies)
-transfer processes within pelagic or benthic trophic chains
-evidences of change in trace metal speciation from continental sources to marine waters
-behavior of minor metals (including platinum group metals and rare earth elements)
-influences of new sources of trace metals (desalination plants, coastal megacities, etc.)

Dr. Olivier Radakovitch
Guest Editor

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 submissions that pass pre-check are 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. Journal of Marine Science and Engineering 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 2600 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.

Published Papers (2 papers)

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Research

834 KiB  
Article
Metal Bioaccumulation by Estuarine Food Webs in New England, USA
by Celia Y. Chen, Darren M. Ward, Jason J. Williams and Nicholas S. Fisher
J. Mar. Sci. Eng. 2016, 4(2), 41; https://doi.org/10.3390/jmse4020041 - 03 Jun 2016
Cited by 17 | Viewed by 5533
Abstract
Evaluating the degree of metal exposure and bioaccumulation in estuarine organisms is important for understanding the fate of metals in estuarine food webs. We investigated the bioaccumulation of Hg, methylmercury (MeHg), Cd, Se, Pb, and As in common intertidal organisms across a watershed [...] Read more.
Evaluating the degree of metal exposure and bioaccumulation in estuarine organisms is important for understanding the fate of metals in estuarine food webs. We investigated the bioaccumulation of Hg, methylmercury (MeHg), Cd, Se, Pb, and As in common intertidal organisms across a watershed urbanization gradient of coastal marsh sites in New England to relate metal exposure and bioaccumulation in fauna to both chemical and ecological factors. In sediments, we measured metal and metalloid concentrations, total organic carbon (TOC) and SEM-AVS (Simultaneously extracted metal-acid volatile sulfides). In five different functional feeding groups of biota, we measured metal concentrations and delta 15N and delta 13C signatures. Concentrations of Hg and Se in biota for all sites were always greater than sediment concentrations whereas Pb in biota was always lower. There were positive relationships between biota Hg concentrations and sediment concentrations, and between biota MeHg concentrations and both pelagic feeding mode and trophic level. Bioavailability of all metals measured as SEM-AVS or Benthic-Sediment Accumulation Factor was lower in more contaminated sites, likely due to biogeochemical factors related to higher levels of sulfides and organic carbon in the sediments. Our study demonstrates that for most metals and metalloids, bioaccumulation is metal specific and not directly related to sediment concentrations or measures of bioavailability such as AVS-SEM. Full article
(This article belongs to the Special Issue Trace Metal Contamination in Estuarine and Coastal Environments)
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8338 KiB  
Article
Geovisualization of Mercury Contamination in Lake St. Clair Sediments
by K. Wayne Forsythe, Chris H. Marvin, Christine J. Valancius, James P. Watt, Joseph M. Aversa, Stephen J. Swales, Daniel J. Jakubek and Richard R. Shaker
J. Mar. Sci. Eng. 2016, 4(1), 19; https://doi.org/10.3390/jmse4010019 - 01 Mar 2016
Cited by 20 | Viewed by 7875
Abstract
The Laurentian Great Lakes of North America contain approximately 20% of the earth’s fresh water. Smaller lakes, rivers and channels connect the lakes to the St. Lawrence Seaway, creating an interconnected freshwater and marine ecosystem. The largest delta system in the Great [...] Read more.
The Laurentian Great Lakes of North America contain approximately 20% of the earth’s fresh water. Smaller lakes, rivers and channels connect the lakes to the St. Lawrence Seaway, creating an interconnected freshwater and marine ecosystem. The largest delta system in the Great Lakes is located in the northeastern portion of Lake St. Clair. This article focuses on the geovisualization of total mercury pollution from sediment samples that were collected in 1970, 1974 and 2001. To assess contamination patterns, dot maps were created and compared with surfaces that were generated using the kriging spatial interpolation technique. Bathymetry data were utilized in geovisualization procedures to develop three-dimensional representations of the contaminant surfaces. Lake St. Clair generally has higher levels of contamination in deeper parts of the lake, in the dredged shipping route through the lake and in proximity to the main outflow channels through the St. Clair delta. Mercury pollution levels were well above the Probable Effect Level in large portions of the lake in both 1970 and 1974. Lower contaminant concentrations were observed in the 2001 data. Lake-wide spatial distributions are discernable using the kriging technique; however, they are much more apparent when they are geovisualized using bathymetry data. Full article
(This article belongs to the Special Issue Trace Metal Contamination in Estuarine and Coastal Environments)
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