Special Issue "Water Sources, Water Chemistry, and Contamination in the Aquatic Ecosystem(s)"

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Water Quality and Contamination".

Deadline for manuscript submissions: closed (30 June 2023) | Viewed by 2789

Special Issue Editors

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Guest Editor Assistant
School of Ocean and Earth Science, Tongji University, Shanghai, China
Interests: hydrology; hydro-geochemistry; water quality; stable isotopes; water chemistry; FDOM; DOM; biogeochemical cycle; environmental geochemistry; water sources; watershed hydrology; chemical weathering; isotope geochemistry; carbon and hydrological dynamics; hydrogeology; water contamination; climate change; tectonics and remoter sensing
Department of Ecology, Environment and Remote Sensing, Government of Jammu and Kashmir, Kashmir 190018, India
Interests: finehydrology; hydro-geochemistry; glaciology; natural hazards, and watershed management; ecosystem services modeling; biogeochemical cycle; water quality; stable isotopes; water chemistry; remote sensing; GIS; watershed management; hydrology; drinking water quality; water contamination
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School of Hydrology and Water Resources, Nanjing University of Information Science & Technology, Ningliu Road No. 219, Nanjing 210044, China
Interests: biogeochemistry; environmental impact assessment; environment; eco-hydrology; carbon sequestration; soil analysis; soil chemistry; GHG emission; climate change; water quality; rivers
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Currently, most of the aquatic ecosystem worldwide has been impounded, which causes a series of changes in hydrodynamics, water chemistry, and ecosystem structure and function. River waters and glaciers are important and valuable sources of water supply throughout the globe. The rock composition, climatic conditions, soil properties, physiographic setup of the area, and anthropogenic activities are dominantly controlling the quality/quantity of river water. Water-aquifer matrix interaction, atmospheric inputs, recharging water, anthropogenic inputs, geological structures, and hydrogeochemical processes are the key factors that regulate the ionic composition of river water. The ionic composition of river water is mostly controlled by hydrogeochemical processes such as calcite dissolution, silicate weathering, carbonate weathering, active ion exchange mechanisms, and residence duration along distinct flow paths. Understanding many hydrogeochemical, hydrological, and biogeochemical processes that regulate the ionic composition of river water will help in successful water resource management. Understanding the contribution of various recharge sources (precipitation, snow, glacier runoff, lakes, snow, soil water, and groundwater), the sources and processes that determine river flow are important, particularly in light of global warming, which may affect the flow of major rivers fed by glaciers by reducing the glacier cover. Water quality describes the condition of the water, including chemical, physical, and biological characteristics, usually with respect to its suitability for a particular purpose such as drinking. Dissolved organic matter (DOM) plays many important roles in surface water: maintain the drinking water quality, control the photochemical processes, form metal-DOM complexation that can result transport and fate of trace metal, cycling and regeneration of nutrients from DOM as well as from POM (e.g., phytoplankton), maintain global carbon cycle processes and finally act as a useful indicator for characterizing various point source water for better understanding DOM sources. The major portions of DOM are useful indicators that can identify and characterize biogeochemical processes.

Main themes (but not inclusive) of this Research Topic are:

  • Water sources
  • Lake water chemistry
  • River water chemistry
  • biogeochemical processes
  • Eutrophication
  • Stable Isotope analysis
  • Environmental Geochemistry
  • Chemical weathering in Rivers
  • Dissolved organic matter in surface water
  • Ionic composition of river water
  • Spatiotemporal variation of WQ parameters
  • Point and non-point source pollution of water bodies
  • Modelling of the change in the biophysical supply of nutrients under baseline and future climate projections.
  • Water quality assessment
  • Glacier and snow chemistry
  • Point and non-point source pollution of water bodies
  • Spatial modeling of water quality
  • Remote sensing for assessing the water quality of lakes and rivers
  • Water quality: characteristics, modeling, modification
  • Water quality in sustainable water management
  • Groundwater potential mapping
  • Machine learning for water chemistry analysis

I look forward to receiving your contributions.

Dr. Mohd Aadil Bhat
Guest Editor Assistant

Dr. Gowhar Meraj
Dr. Amit Kumar
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 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.


  • water chemistry
  • river water quality, groundwater quality
  • water sources
  • water quality
  • source contributions
  • environmental impact assessment
  • environment
  • eco-hydrology
  • ionic composition
  • water contamination
  • biogeochemical processes
  • freshwater
  • DOM
  • wastewater
  • environmental geochemistry
  • geospatial modelling
  • interpolation for water quality analysis
  • glaciers
  • snow
  • SWE and water quality

Published Papers (1 paper)

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26 pages, 1856 KiB  
Assessment of Heavy Metal Contamination in Beach Sediments of Eastern St. Martin’s Island, Bangladesh: Implications for Environmental and Human Health Risks
Water 2023, 15(13), 2494; https://doi.org/10.3390/w15132494 - 07 Jul 2023
Cited by 3 | Viewed by 2259
Heavy metal pollution in marine ecosystems is an escalating environmental concern, largely driven by anthropogenic activities, and poses potential threats to ecological health and human well-being. This study embarked on a comprehensive investigation into the concentrations of heavy metals in sediment samples and [...] Read more.
Heavy metal pollution in marine ecosystems is an escalating environmental concern, largely driven by anthropogenic activities, and poses potential threats to ecological health and human well-being. This study embarked on a comprehensive investigation into the concentrations of heavy metals in sediment samples and evaluated their potential ecological and health risks with a focus on Eastern St. Martin’s Island (SMI), Bangladesh. Sediment samples were meticulously collected from 12 distinct sites around the island, and the concentrations of heavy metals, including Mn, Fe, Ni, Zn, Cr, Pb, and Cu, were quantified utilizing atomic absorption spectrometry (AAS). The results revealed that the average concentrations of the metals, in descending order, were Mn (269.5 ± 33.0 mg/kg), Fe (143.8 ± 21.7 mg/kg), Ni (29.6 ± 44.0 mg/kg), Zn (27.2 ± 4.34 mg/kg), Cr (8.09 ± 1.67 mg/kg), Pb (5.88 ± 0.45 mg/kg), and Cu (3.76 ± 0.60 mg/kg). Intriguingly, the concentrations of all the measured metals were found to be within permissible limits and comparatively lower than those documented in various national and international contexts. The ecological risk assessment, based on multiple sediment quality indices such as the geoaccumulation index, contamination factor, and pollution load index, indicated a moderate risk to the aquatic ecosystem but no significant adverse impact on sediment quality. Additionally, the human health risk assessment, encompassing non-carcinogenic hazard indices for different age groups, was considerably below the threshold, signifying no immediate health risk. The total carcinogenic risk was also found to be below acceptable levels. These findings underscore the current state of heavy metal pollution in Eastern St. Martin’s Island, providing valuable insights for environmental monitoring and management. While the immediate risks were not alarming, the study highlights the imperative need for sustained monitoring and the implementation of rigorous regulations to curb heavy metal pollution in order to safeguard both ecological and human health. This warrants the development of policies that are both adaptive and preemptive to ensure the sustainable utilization and conservation of marine resources. Full article
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