Assessing Industrial Chemicals Using Aquatic Models

A special issue of Journal of Xenobiotics (ISSN 2039-4713).

Deadline for manuscript submissions: closed (31 May 2022) | Viewed by 19547

Special Issue Editors


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Guest Editor
U.S. Environmental Protection Agency, 6201 Congdon Blvd, Duluth, MN 55804-2595, USA
Interests: environmental toxicology; fish models; new approach methods; developmental toxicology; predictive toxicology; cross-species extrapolation; high-content screening; aquatic toxicity testing

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Guest Editor
Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, USA
Interests: human health; fish models; molecular toxicology; developmental toxicology; organic pollutants; radiofrequency radiations

Special Issue Information

Dear Colleagues,

Around the world, every day, thousands of chemicals are transported, stored, and used in manufacturing and industrial processes. These chemicals are not only diverse in their commercial use and their chemical properties, but also in their toxicity. When released into the environment, either though intentional discharge, chemical runoff, or accidental spill, they can pose a significant risk to both human and environmental health. As evidenced by recent surges in government interest and media attention, the environmental risk associated with industrial chemicals such as metals, halogenated flame-retardants, and Per- and polyfluoroalkyl substances (PFAS) is a topic of emerging interest across research sectors and scientific disciplines.

Beginning with their use as an early indicator of chemical contamination in natural systems, aquatic models have become a staple of both laboratory and field-based toxicology studies. Small fish models such as the Zebrafish (Danio rerio) and killifish (Fundulus heteroclitus) have become key in many areas of human health research, while models such as the Fathead Minnow (Pimephales promelas), Daphnia (Daphnia sp.), Mysid (Mysidopsis bahia), Japanese Medaka (Oryzias latipes), Sea Urchin (Arbacia punctulata), Mussel (Epioblasma brevidens), and Algae (Champia parvula) remain crucial in environmental research. Across scientific disciplines, aquatic models have become a staple of modern toxicology, a trend that will likely continue to grow as the field moves further away from mammalian-based studies.

This Special Issue of the Journal of Xenobiotics aims to assemble recent, multidisciplinary research utilizing aquatic models to assess aspects of industrial contaminants. By bringing together studies on bioaccumulation, metabolism, population modeling, environmental monitoring, chemical fate/transport, and toxicology (including adverse effects, mechanisms of action, concentration-response analyses, risk assessment) of individual contaminants and their mixtures, the goal of this Special Issue is to provide a better understanding of industrial contaminants while highlighting the diverse roles aquatic models play in current toxicological research.  

Dr. Sara M. Vliet
Dr. Subham Dasgupta
Guest Editors

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Published Papers (2 papers)

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Research

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15 pages, 2302 KiB  
Article
Changes of Heart Rate and Lipid Composition in Mytilus Edulis and Modiolus Modiolus Caused by Crude Oil Pollution and Low Salinity Effects
by Igor Bakhmet, Natalia Fokina and Tatiana Ruokolainen
J. Xenobiot. 2021, 11(2), 46-60; https://doi.org/10.3390/jox11020004 - 14 May 2021
Cited by 5 | Viewed by 3645
Abstract
Blue mussels, Mytilus edulis, inhabiting tidal zones, are naturally exposed to fluctuating environmental conditions (e.g., fluctuations in temperature and salinities), while horse mussels, Modiolus modiolus, live under relatively invariable shelf water conditions. The present investigation tested the hypothesis: blue mussels, in [...] Read more.
Blue mussels, Mytilus edulis, inhabiting tidal zones, are naturally exposed to fluctuating environmental conditions (e.g., fluctuations in temperature and salinities), while horse mussels, Modiolus modiolus, live under relatively invariable shelf water conditions. The present investigation tested the hypothesis: blue mussels, in comparison to horse mussels, have an increased ability to tolerate the stress of pollution combined with low salinity. To assess the response of blue mussels and horse mussels to oil pollution at seawater salinities of 25 psu (normal) and 15 psu (low), we used a combination of heart rate and lipid composition as physiological and biochemical indicators, respectively. A sharp decrease in heart rate as well as important fluctuations in cardiac activity was observed under all oil concentrations. Modifications in the concentrations of the main membrane lipid classes (phosphatidylcholine, phosphatidylethanolamine, and cholesterol) and storage lipids (primarily triacylglycerols) in response to different crude oil concentrations were time- and dose-dependent. Both chosen indicators showed a high sensitivity to crude oil contamination. Furthermore, both bivalve species showed similar responses to oil pollution, suggesting a universal mechanism for biochemical adaptation to crude oil pollution. Full article
(This article belongs to the Special Issue Assessing Industrial Chemicals Using Aquatic Models)
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Review

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12 pages, 1983 KiB  
Review
Xenobiotics—Division and Methods of Detection: A Review
by Tea Štefanac, Dijana Grgas and Tibela Landeka Dragičević
J. Xenobiot. 2021, 11(4), 130-141; https://doi.org/10.3390/jox11040009 - 26 Oct 2021
Cited by 57 | Viewed by 14861
Abstract
Xenobiotics are compounds of synthetic origin, usually used for domestic, agricultural, and industrial purposes; in the environment, they are present in micropollutant concentrations and high concentrations (using ng/L to µg/L units). Xenobiotics can be categorized according to different criteria, including their nature, uses, [...] Read more.
Xenobiotics are compounds of synthetic origin, usually used for domestic, agricultural, and industrial purposes; in the environment, they are present in micropollutant concentrations and high concentrations (using ng/L to µg/L units). Xenobiotics can be categorized according to different criteria, including their nature, uses, physical state, and pathophysiological effects. Their impacts on humans and the environment are non-negligible. Prolonged exposure to even low concentrations may have toxic, mutagenic, or teratogenic effects. Wastewater treatment plants that are ineffective at minimizing the release of xenobiotic compounds are one of the main sources of xenobiotics in the environment (e.g., xenobiotic compounds reach the environment, affecting both humans and animals). In order to minimize the negative impacts, various laws and regulations have been adopted in the EU and across the globe, with an emphasis on xenobiotics removal from the environment, in a way that is economically, environmentally, and socially acceptable, and will not result in their accumulation, or creation of compounds that are more harmful. Detection methods allow detecting even small concentrations of xenobiotics in samples, but the problem is the diversity and mix of compounds present in the environment, in which it is not known what their effects are). In this review, the division of xenobiotics and their detection methods will be presented. Full article
(This article belongs to the Special Issue Assessing Industrial Chemicals Using Aquatic Models)
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