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The Role of Ecotoxicology in Environmental Protection
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The Role of Ecotoxicology in Environmental Protection

A special issue of International Journal of Environmental Research and Public Health (ISSN 1660-4601). This special issue belongs to the section "Chemoenvironment".

Deadline for manuscript submissions: closed (30 June 2023) | Viewed by 4248

Special Issue Editor

Dr. Eduardo Cyrino Oliveira-Filho

E-Mail Website
Guest Editor
Embrapa Cerrados, Federal District, Planaltina 73310-970, Brazil
Interests: ecotoxicology; aquatic toxicology; water quality; water resources
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Ecotoxicology is the study of the adverse effects of chemical substances on ecosystems and their components. Previously known as aquatic toxicology (primarily due to the greater interest in the toxic effects on aquatic species), ecotoxicology has a fundamental and predictive role in protecting the environment, including water, soil, air, and the interactions between its living components. The importance of ecotoxicological studies in the prediction of potential effects on human health should be noted, since human beings are part of the environment, and environmental changes will also affect human populations in the medium or long term. 

This Special Issue of the International Journal of Environmental Research and Public Health will focus on all aspects of ecotoxicology. We are seeking studies and results relating this science to environmental protection and, consequently, to human health. 

New research results, reviews, case studies and papers presented at scientific events are welcome. Other types of manuscripts, such as new methodologies, position papers, technical notes and comments, will also be accepted. 

We will consider manuscripts from different disciplines, including exposure assessment, intervention studies, ecological and environmental risk assessment, ecological and environmental risk management, and environmental impact assessment, including standards definition and ecotoxicological data. 

Dr. Eduardo Cyrino Oliveira-Filho
Guest Editor

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. International Journal of Environmental Research and Public Health 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 2500 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

  • aquatic ecotoxicology
  • terrestrial ecotoxicology
  • environmental impact
  • environmental bioassays
  • ecosystem health
  • microcosms
  • mesocosms
  • ecotoxicological assays
  • environmental policies
  • ecotoxicological methods

Published Papers (2 papers)

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Research

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11 pages, 3134 KiB  
Article
Multilevel Toxicity Evaluations of Polyethylene Microplastics in Zebrafish (Danio rerio)
by Ingrid de Souza Freire, Maria Luiza Fascineli, Tathyana Benetis Piau, Bruno Fiorelini Pereira and Cesar Koppe Grisolia
Int. J. Environ. Res. Public Health 2023, 20(4), 3617; https://doi.org/10.3390/ijerph20043617 - 17 Feb 2023
Cited by 7 | Viewed by 2288
Abstract
Microplastics in freshwater environments pose a serious threat to living beings. Polyethylene microplastics (PE-MP) are the type most used around the world as microbeads in personal care products, and they have been found in aquatic organisms. The behavior and toxicity of fluorescent PE-MP [...] Read more.
Microplastics in freshwater environments pose a serious threat to living beings. Polyethylene microplastics (PE-MP) are the type most used around the world as microbeads in personal care products, and they have been found in aquatic organisms. The behavior and toxicity of fluorescent PE-MP spheres with an average diameter of 58.9 μm were studied in adult, juvenile and embryo zebrafish (Danio rerio). The adults were studied for genotoxicity, cytotoxicity, histology and biochemical markers. Juveniles underwent a follow-up in the gastrointestinal (GI) tract with histologic observations, and embryos were studied for embryotoxicity with the FET-test. In adults, micronucleus test and comet assays found neither genotoxicity after acute exposure for 96 h at concentrations of 0.0, 12.5, 50 and 100 mg.L−1, nor cytotoxicity through the nuclear abnormalities test. Acetylcholinesterase (AChE), Glutathione-S-Transferase (GST) and Lactate Dehydrogenase (LDH) activities were measured in adults exposed for 96 h. The AChE and GST activities were significantly changed, while no changes occurred for LDH. In conclusion, these PE-MP spheres did not cause serious toxic effects in zebrafish because there was no internalization. The observed biochemical changes in AChE and GST may be associated with GI microbiological dysbiosis, previously reported. The PE-MP spheres in the intestine of juveniles remained present for 12–15 days on average after the post-exposure clearance study, showing a slow depuration. The histological analysis, in adults, found no internalization of these microbeads, with complete depuration. The PE-MP spheres did not cross the chorion barrier, showing no embryotoxic effects after exposures at 0.0, 6.25, 12.5, 50.0 or 100.0 mg.L−1 for 96 h. Full article
(This article belongs to the Special Issue The Role of Ecotoxicology in Environmental Protection)
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Review

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14 pages, 402 KiB  
Review
The Ecotoxicology of Microbial Insecticides and Their Toxins in Genetically Modified Crops: An Overview
by Eduardo C. Oliveira-Filho and Cesar K. Grisolia
Int. J. Environ. Res. Public Health 2022, 19(24), 16495; https://doi.org/10.3390/ijerph192416495 - 8 Dec 2022
Cited by 4 | Viewed by 1494
Abstract
The use of microbial insecticides and their toxins in biological control and transgenic plants has increased their presence in the environment. Although they are natural products, the main concerns are related to the potential impacts on the environment and human health. Several assays [...] Read more.
The use of microbial insecticides and their toxins in biological control and transgenic plants has increased their presence in the environment. Although they are natural products, the main concerns are related to the potential impacts on the environment and human health. Several assays have been performed worldwide to investigate the toxicity or adverse effects of these microbial products or their individual toxins. This overview examines the published data concerning the knowledge obtained about the ecotoxicity and environmental risks of these natural pesticides. The data presented show that many results are difficult to compare due to the diversity of measurement units used in the different research data. Even so, the products and toxins tested present low toxicity and low risk when compared to the concentrations used for pesticide purposes. Complementary studies should be carried out to assess possible effects on human health. Full article
(This article belongs to the Special Issue The Role of Ecotoxicology in Environmental Protection)
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