Special Issue "Chemical Contaminants in Water Environment: Occurrence, Distribution and Risk Assessment"

A special issue of Toxics (ISSN 2305-6304). This special issue belongs to the section "Environmental Chemistry".

Deadline for manuscript submissions: 28 October 2022 | Viewed by 741

Special Issue Editors

Prof. Dr. Paolo Montuori
E-Mail Website
Guest Editor
Department of Public Health, University “Federico II”, Naples, Italy
Interests: environmental pollution; epidemiology; toxicology; public health; hygiene and safety
Dr. Elvira De Rosa
E-Mail Website
Guest Editor
Department of Public Health, University “Federico II”, Naples, Italy
Interests: environmental pollution; water environment; public health; risk assessment; contaminant loads; ecological risk; seasonal and spatial variation; emerging pollutants (pesticides, metabolites, polychlorinated biphenyls, PAHs, heavy metals); hygiene and safety
Dr. Fabiana Di Duca
E-Mail Website
Guest Editor
Department of Public Health, University of Naples Federico II, Naples, Italy
Interests: environmental pollution; water environment; public health; risk assessment; contaminant loads; ecological risk; seasonal and spatial variation; emerging pollutants (pesticides, metabolites, polychlorinated biphenyls, PAHs, heavy metals); hygiene and safety

Special Issue Information

Dear Colleagues,

Water is a very important natural resource for human needs, especially regarding health. Water pollution is a serious problem and a major global environmental concern. Contaminants enter an aquatic setting  through anthropogenic activities such as sewage sludge disposal, the application of pesticides and inorganic fertilizers, industrial activities and increasing urbanization. These contaminants are non-biodegradable in the environment, and all contaminants are potentially bioavailable and consequentially toxic to the biota and human health. In aquatic systems, potentially toxic contaminants are transported in dissolved or particulate form, where sediment and suspended particles play important roles in contaminant adsorption, desorption and dissolution, and sedimentation processes. Thus, the assessment of pollution in water environments is a determinant, as these areas could receive considerable amounts of pollutant inputs from antropogenic activities. Several emerging pollutants are being detected in the water environment; therefore, the environmental monitoring of pollutants is an essential topic for understanding the impact of certain human activities and defining their consequences for the environmental and human health.

We are pleased to invite you to submit to this Special Issue “Chemical Contaminants in Water Environment: Occurrence, Distribution and Risk Assessment”, with the aim of improving the knowledge on this topic and to enrich public understanding of the pollution of the aquatic environment.

For this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) environmental chemistry and ecotoxicology. We also encourage manuscripts that propose new models and statistical techniques to assess the origin of river pollution, as well as unconventional approaches to gauging the ecological risk.

Prof. Dr. Paolo Montuori
Dr. Elvira De Rosa
Dr. Fabiana Di Duca
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. Toxics 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 1800 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 pollution
  • risk assessment
  • public health
  • ecological risk
  • emerging contaminants
  • environmental health
  • hygiene and safety

Published Papers (2 papers)

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Research

Article
Polycyclic Aromatic Hydrocarbons (PAHs) in the Dissolved Phase, Particulate Matter, and Sediment of the Sele River, Southern Italy: A Focus on Distribution, Risk Assessment, and Sources
Toxics 2022, 10(7), 401; https://doi.org/10.3390/toxics10070401 - 19 Jul 2022
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Abstract
The Sele River, located in the Campania Region (southern Italy), is one of the most important rivers and the second in the region by average water volume, behind the Volturno River. To understand the distribution and sources of polycyclic aromatic hydrocarbons (PAHs) in [...] Read more.
The Sele River, located in the Campania Region (southern Italy), is one of the most important rivers and the second in the region by average water volume, behind the Volturno River. To understand the distribution and sources of polycyclic aromatic hydrocarbons (PAHs) in the Sele River, water sediment samples were collected from areas around the Sele plain at 10 sites in four seasons. In addition, the ecosystem health risk and the seasonal and spatial distribution of PAHs in samples of water and sediment were assessed. Contaminant discharges of PAHs into the sea were calculated at about 1807.9 kg/year. The concentration ranges of 16 PAHs in surface water (DP), suspended particulate matter (SPM), and sediment were 10.1–567.23 ng/L, 121.23–654.36 ng/L, and 331.75–871.96 ng/g, respectively. Isomeric ratio and principal component analyses indicated that the PAH concentrations in the water and sediment near the Sele River were influenced by industrial wastewater and vehicle emissions. The fugacity fraction approach was applied to determine the trends for the water-sediment exchange of 16 priority PAHs; the results indicated that fluxes, for the most part, were from the water into the sediment. The toxic equivalent concentration (TEQ) of carcinogenic PAHs ranged from 137.3 to 292.6 ngTEQ g−1, suggesting that the Sele River basin presents a definite carcinogenic risk. Full article
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Article
Occurrence, Distribution, and Risk Assessment of Organophosphorus Pesticides in the Aquatic Environment of the Sele River Estuary, Southern Italy
Toxics 2022, 10(7), 377; https://doi.org/10.3390/toxics10070377 - 07 Jul 2022
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Abstract
The intensive use of organophosphorus pesticides (OPPs) causes concern among authorities in different countries, as many of them, remaining unchanged for a long time, pose a threat to environmental sustainability. This study assessed the spatio-temporal trends of nine OPPs in the water dissolved [...] Read more.
The intensive use of organophosphorus pesticides (OPPs) causes concern among authorities in different countries, as many of them, remaining unchanged for a long time, pose a threat to environmental sustainability. This study assessed the spatio-temporal trends of nine OPPs in the water dissolved phase (WDP), suspended particulate matter (SPM), and sediment samples from the Sele River estuary, Southern Italy. Samples were collected in 10 sampling sites during four seasons. The highest levels were found at the mouth (mean value 28.25 ng L−1 as WDP + SPM) and then decreased moving southwards to the Mediterranean Sea. Moreover, highest concentrations were detected in the warm season (July) with a mean value of 27.52 ng L−1. The load contribution to the Mediterranean Sea was evaluated in about 61.5 kg year−1, showing that the river was an important source of OPPs through discharge into the sea. The risk assessment revealed that no high-risk indices for the general-case scenario were observed, but for the worst-case scenario, potential risks were associated with chlorpyrifos, pyrimifos-methyl, and parathion, suggesting that OPP contamination should not be neglected. This study makes up the first record of OPPs in the surface waters of the Sele River and provides helpful data as a starting point for future studies. Full article
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