Special Issue "Human Impacts on Estuaries and Coasts"

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Oceans and Coastal Zones".

Deadline for manuscript submissions: 20 October 2023 | Viewed by 948

Special Issue Editors

Águas do Rio Sanitation and Environmental Geochemistry Program, University Federal Fluminense, Niterói, Brazil
Interests: water quality; pollutants; environmental management; eutrophication; coastal management; sediment; sewage treatment; colimetry; environmental monitoring
Fundacao Oswaldo Cruz, Rio de Janeiro, Brazil
Interests: water quality; sewage ocean outfalls; coastal management; environmental assessment

Special Issue Information

Dear Colleagues,

The growing human occupation of estuarine and coastal zones has produced large amounts of contaminants that are disposed in low energy, transition, and low resilience systems, threatening water, sediment, and biota. Aiming to solve this issue, numerous works have been presented, including intensive treatment of sewage, disposal of used waters through submarine outfalls, and in situ river water treatment; however, the dimension of the problems overwhelms the proposed solutions. This Special Issue of Water is aimed at the impacts of human occupations on estuarine and coastal environments, and contributions can focus on, but not be limited to, the application and development of technologies to evaluate, monitor, and remediate sediments and water, management and planning of contaminated areas, and recovery of ecosystems, including introduction (or reintroduction) of organisms. Although the behavior of contaminants in coastal systems, including estuaries, has been extensively studied, applications of concepts to real-life situations are still scarce, mainly in terms of studies that allow changes in the practical view for environmental management. In the present issue, we expect to receive articles that will contribute to the resolution of environmental issues in the coastal environment, heavily supported by conceptual knowledge.

Prof. Dr. Julio Cesar Wasserman
Prof. Dr. Renato Castiglia Feitosa
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 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. Water is an international peer-reviewed open access semimonthly 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 2200 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

  • water management
  • water quality
  • sanitation
  • coast
  • estuarine environment
  • sediments
  • biota
  • ecosystems

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

Article
Radium Isotopes and Hydrochemical Signatures of Surface Water-Groundwater Interaction in the Salt-Wedge Razdolnaya River Estuary (Sea of Japan) in the Ice-Covered Period
Water 2023, 15(9), 1792; https://doi.org/10.3390/w15091792 - 07 May 2023
Viewed by 691
Abstract
The interaction of surface water and groundwater is important in the ecology of coastal basins, affecting hydrological conditions, oxygen regime, carbon, and nutrient exchange. This study demonstrates a dynamic connection between the salt-wedge region and its underlying aquifer in the eutrophic estuary. In [...] Read more.
The interaction of surface water and groundwater is important in the ecology of coastal basins, affecting hydrological conditions, oxygen regime, carbon, and nutrient exchange. This study demonstrates a dynamic connection between the salt-wedge region and its underlying aquifer in the eutrophic estuary. In winter, this estuary is covered with ice, and the river flow is at its lowest; that is why the specific response to groundwater discharge is best marked in this season. Groundwater admixture was detected in the salt-wedge region by highly active radium isotopes: 223Ra—4.80 ± 0.42 dpm 100 L−1, 224Ra—55.37 ± 1.1 dpm 100 L−1, and 228Ra—189.71 ± 4.66 dpm 100 L−1. The temperature of groundwater and river water was about +4 °C and 0 °C, respectively; that of seawater was −1.6 °C, and temperature increased up to +2.3 °C in the surface water–groundwater interaction region. Groundwater admixture is accompanied by a lower level of oxygen concentration of 52 μmol/kg; at that time, the maximum oxygen concentration in the salt-wedge region was 567 μmol/kg. In waters with a high activity of radium isotopes, there was a maximum partial pressure of CO2—4454 μatm at the range 100–150 μatm in the salt-wedge region and also observed extremum of NH4+, NO2, and dissolved phosphorus. The surface water–groundwater interaction through anoxic sediment can form localized anaerobic areas despite the general oxygen supersaturation of eutrophic estuary waters and also cause local recycling of nutrients from bottom sediments. Full article
(This article belongs to the Special Issue Human Impacts on Estuaries and Coasts)
Show Figures

Figure 1

Back to TopTop