Chemical Contaminants' Fate and Behavior in the Environment

A special issue of Toxics (ISSN 2305-6304).

Deadline for manuscript submissions: closed (20 February 2024) | Viewed by 1413

Special Issue Editors


E-Mail Website
Guest Editor
Department of Civil, Environmental, and Construction Engineering, Texas Tech University, Lubbock, TX, USA
Interests: contaminated sediments; environmental transport processes; in situ management; water resources

E-Mail Website
Guest Editor
Department of Civil, Environmental, and Construction Engineering, Texas Tech University, Lubbock, TX, USA
Interests: environment; soil; atmosphere; oxidation; kinetics; water quality; heavy metals; environmental engineering; environmental analytical chemistry; environmental pollution

Special Issue Information

Dear Colleagues,

This Special Issue seeks to highlight current advances in the understanding and modeling of the fate and behavior of chemical contaminants in the environment. Contaminants of interest include both legacy (e.g., PAH, PCBs, dioxins and heavy metals) and emerging contaminants (e.g. personal care products, pharmaceuticals and PFAS). Environmental settings of interest include soil and sediments as well as transport to adjacent air and water. Of particular interest are dynamic environmental settings such as systems subject to regular inundation and drainage due to tides, seasonal changes in water levels and dynamic unsaturated zones subjected to water table changes and rainfall. Manuscripts on cross-media transport and contaminant processes that are affected by a combination of physical, chemical and biological changes and biogeochemical changes, or lead to these effects themselves, are especially encouraged. Applications on contaminant assessment and in situ remediation processes are also encouraged.

Prof. Dr. Danny D. Reible
Dr. Balaji Anandha Rao
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 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.

 

Keywords

  • fate
  • transport
  • environment
  • in situ remediation
  • cross-media transport
  • critical zone
  • inundation and drainage
  • biogeochemistry

Published Papers (1 paper)

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Research

22 pages, 4544 KiB  
Article
Herbicide Leaching in Soil with Different Properties: Perspectives from Commercial Formulations and Analytical Standards
by Rita de Cássia Araújo de Medeiros, Tatiane Severo Silva, Taliane Maria da Silva Teófilo, Francisca Daniele da Silva, Matheus de Freitas Souza, Ana Beatriz Rocha de Jesus Passos, Bruno Caio Chaves Fernandes, Hamurábi Anizio Lins, Paulo Sergio Fernandes das Chagas, Carolina Malala Martins Souza, Ioná Santos Araújo Holanda and Daniel Valadão Silva
Toxics 2024, 12(3), 199; https://doi.org/10.3390/toxics12030199 - 2 Mar 2024
Cited by 1 | Viewed by 1104
Abstract
The leaching of herbicides into the soil is essential to control germinating seeds and parts of vegetative weeds. However, herbicide transportation to deeper soil layers can result in groundwater contamination and, consequently, environmental issues. In this research, our objective was to investigate differences [...] Read more.
The leaching of herbicides into the soil is essential to control germinating seeds and parts of vegetative weeds. However, herbicide transportation to deeper soil layers can result in groundwater contamination and, consequently, environmental issues. In this research, our objective was to investigate differences in herbicide leaching between commercial formulations and analytical standards using three different soils. Leaching experiments were carried out for diuron, hexazinone, and sulfometuron-methyl herbicides isolated and in binary and ternary mixtures. The herbicide residue quantification was performed by ultra-high-performance liquid chromatography coupled to a mass spectrometer (LC-MS/MS). Diuron had less mobility in soils and was retained in the most superficial layers. Hexazinone and sulfometuron-methyl were more mobile and leached into deeper layers. The leaching process was more intense for hexazinone and sulfometuron-methyl. The additives present in the commercial formulation favored the leaching in soils of diuron, hexazinone, and sulfometuron-methyl herbicides isolated and mixture compared to the analytical standard. This fact highlights the importance of considering these effects for the positioning of herbicides in the field to increase the efficiency of weed control and minimize the potential for environmental contamination. Full article
(This article belongs to the Special Issue Chemical Contaminants' Fate and Behavior in the Environment)
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