Water Resources under Growing Anthropogenic Loads, Volume II

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 July 2023) | Viewed by 3397

Special Issue Editor


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Guest Editor
Vernadsky Institute of Geochemistry and Analytical Chemistry of Russian Academy of Sciences, Moscow, Russia
Interests: biogeochemistry; aquatic geochemistry and ecology; water quality; toxic impacts; eutrophication; acidification; diagnostic criteria of early worrying in water ecosystems; critical levels and loads
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Special Issue Information

Dear Colleagues,

Taking into account the high importance of fresh water to the world's population and for the preservation of its species diversity, the high relevance of water resources studies under the influence of increasing anthropogenic loads is obvious. The transformation of watersheds, airborne streams, industrial and domestic wastewaters leading to water pollution, changes in geochemical cycles in the “catchment–reservoir” system, acidification, the eutrophication of lakes and rivers, and the diffusion of toxic substances in water reduce the quality of water and the biodiversity of aquatic systems. Climate warming also leads to changes in hydrological cycles and the cycle of elements and substances. The aim of this Special Issue is to combine the results of studies on the anthropogenic impact on water resources and water quality, forecasts of the consequences of increasing anthropogenic loads in conditions of climate warming, and assessments of reducing the negative consequences of water pollution and water restoration.

The scope of the Special Issue includes:

  • Chemistry and biology of water under point-source and diffuse water pollution, airborne pollution of catchments, transport processes, and toxic contaminants (metals and pops), as well as aquatic ecosystem health assessments.
  • Nutrient loads and eutrophication, acid loads and acidification, critical values and recovery from a long-term perspective.
  • Climate warming impacts on water resources: hydrology, quality, and risk assessment.
  • Mathematical modeling, systems analysis, and beneficial use of big data related to the anthropogenic water cycle and quality.

Prof. Dr. Tatyana Moiseenko
Guest Editor

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Keywords

  • surface water
  • anthropogenic impacts
  • climate warming
  • hydrology
  • chemistry
  • risk assessment

Published Papers (2 papers)

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Research

25 pages, 4561 KiB  
Article
Composition, Concentration and Origin of Polycyclic Aromatic Hydrocarbons in Waters and Bottom Sediments of Lake Baikal and Its Tributaries
by Mikhail Y. Semenov, Irina I. Marinaite, Anton V. Silaev and Larisa A. Begunova
Water 2023, 15(13), 2324; https://doi.org/10.3390/w15132324 - 22 Jun 2023
Cited by 4 | Viewed by 1937
Abstract
The aim of this study was the systematization and generalization of data obtained by authors during the last decade and the comparison of these data with those obtained by other authors. Gas chromatography (GC-MS) was used for the determination of PAHs and the [...] Read more.
The aim of this study was the systematization and generalization of data obtained by authors during the last decade and the comparison of these data with those obtained by other authors. Gas chromatography (GC-MS) was used for the determination of PAHs and the positive matrix factorization (PMF) model and principal component analysis (PCA) were used for source apportionment of PAHs. It was found that the total concentration of 16 priority PAHs in surface waters varied from 5 to 200 ng/L, whereas the concentration of 16 PAHs in bottom sediments varied from 50 to 700 ng/g. The 2–3-ring PAHs were dominant in water, whereas the 4–6-ring PAHs were dominant in sediments. That was due to PAHs fractionation in the soil–water system. The source apportionment results showed that the PAHs in both water and sediments mostly originated from the combustion of biomass and fossil fuels. In contrast to sediments, there was a PAH fraction in water that did not originate from a single source. The pollution of freshwater ecosystems manifested itself in the lack of correlation between values of octanol/water partitioning coefficients and sediment/water partitioning coefficients of PAHs. Full article
(This article belongs to the Special Issue Water Resources under Growing Anthropogenic Loads, Volume II)
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22 pages, 3144 KiB  
Article
The Influence of DOC on the Migration Forms of Elements and Their Sedimentation from River Waters at an Exploited Diamond Deposit (NW Russia)
by Alexander I. Malov, Evgeniya S. Sidkina and Elena V. Cherkasova
Water 2023, 15(12), 2160; https://doi.org/10.3390/w15122160 - 7 Jun 2023
Viewed by 1102
Abstract
The development of mineral deposits causes changes that are comparable to natural exogenous geological processes, and prevail over the latter in local areas of intensive mining activity. In this article, a diamond deposit is selected, developed by quarries of great depth, and a [...] Read more.
The development of mineral deposits causes changes that are comparable to natural exogenous geological processes, and prevail over the latter in local areas of intensive mining activity. In this article, a diamond deposit is selected, developed by quarries of great depth, and a forecast is made of the impact of drainage water discharge on changes in the composition of surface water and bottom sediments during the entire period of development of the deposit. Modeling was performed according to various scenarios, taking into account changes in the total dissolved solids of groundwater from 0.5 to 21.7 g/kg H2O. Thermodynamic calculations were carried out using the HCh software package. The role of dissolved organic carbon in the migration of chemical elements and the effect of DOC on the precipitation of chemical elements from mixed solutions is given. It has been established that fulvic acid completely binds to Fe in the Fe(OH)2FA complex in all types of natural waters and under all mixing scenarios. With humic acid, such a sharp competitive complex formation does not occur. It is distributed among the various elements more evenly. It was determined that the mass of precipitating iron in the presence of DOC decreases by 18–27%, and its precipitation in winter is more intense. In contrast to Fe, the precipitation of Ca, Mg, and C from solutions with DOC is higher in summer, and there are more of them in the solutions in winter. This study contributes to a better understanding of the behavior of heavy metals in surface waters and sediments under anthropogenic pressures in order to improve the sustainable management of water resources in the face of anthropogenic activities. Full article
(This article belongs to the Special Issue Water Resources under Growing Anthropogenic Loads, Volume II)
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