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Environmental Analytical Chemistry II

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Analytical Chemistry".

Deadline for manuscript submissions: 31 May 2024 | Viewed by 679

Special Issue Editors


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Guest Editor
Chair of Water Supply, Sewerage, Water and Wastewater Treatment, Faculty of Hydraulic Engineering, University of Architecture, Civil Engineering and Geodesy, 1046 Sofia, Bulgaria
Interests: analytical chemistry of water; water quality; laboratory accreditation
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Chair of Analytical Chemistry, Faculty of Chemistry and Pharmacy, Sofia University St. Kliment Ohridski, 1164 Sofia, Bulgaria
Interests: chemometrics; environmental analytical chemistry; intelligent data analysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Humanity has an irreversible impact on nature. Most of the time, the adverse effects of human life lead to pollution of the Earth’s vital resources, such as air, water and soil. The analysis of pollutants (organic, inorganic, and radioactive) is of paramount importance to controlling the suitability of resources in today’s increasing demands. The classical focus on the development of new and the improvement of existing analytical methods, combined with chemometric and statistical approaches for risk assessment, for the purposes of revealing pollution sources, understanding the pathways of exposure, and determining the trends and spatial distribution of analysed pollutants is the core of modern environmental analytical chemistry.

Therefore, all analytical aspects of studies related to environmental problems and their management contribute significantly to the main goal—the protection of the environment. For these reasons, we would like to invite you to contribute to this Special Issue, “Environmental Analytical Chemistry II”. Your valuable unpublished research can find a worldwide audience among readers of Molecules.

Dr. Tony Venelinov
Prof. Dr. Stefan Tsakovski
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. Molecules is an international peer-reviewed open access semimonthly 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 2700 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

  • environmental monitoring
  • water, air and soil pollution
  • pollution risk assessment
  • ecotoxicity
  • ecotoxicology
  • chemometrics
  • method development for analysis of environmental compartments
  • method validation

Published Papers (1 paper)

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Research

17 pages, 2297 KiB  
Article
A Comprehensive Evaluation of Dioxins and Furans Occurrence in River Sediments from a Secondary Steel Recycling Craft Village in Northern Vietnam
by Hung Xuan Nguyen, Xuyen Thi Nguyen, Hang Thi Hong Mai, Huong Thi Nguyen, Nam Duc Vu, Thao Thi Phuong Pham, Trung Quang Nguyen, Dat Tien Nguyen, Nam Thanh Duong, Anh Le Tuan Hoang, Tung Ngoc Nguyen, Nhan Van Le, Ha Viet Dao, Minh Truong Ngoc and Minh Quang Bui
Molecules 2024, 29(8), 1788; https://doi.org/10.3390/molecules29081788 - 15 Apr 2024
Viewed by 409
Abstract
This first study investigated the presence of dioxins and furans in river sediments around a craft village in Vietnam, focusing on Secondary Steel Recycling. Sediment samples were collected from various locations along the riverbed near the Da Hoi Secondary Steel Recycling village in [...] Read more.
This first study investigated the presence of dioxins and furans in river sediments around a craft village in Vietnam, focusing on Secondary Steel Recycling. Sediment samples were collected from various locations along the riverbed near the Da Hoi Secondary Steel Recycling village in Bac Ninh province. The analysis was conducted using a HRGC/HRMS-DFS device, detecting a total of 17 dioxin/furan isomers in all samples, with an average total concentration of 288.86 ng/kg d.w. The concentrations of dioxin/furan congeners showed minimal variation among sediment samples, ranging from 253.9 to 344.2 ng/kg d.w. The predominant compounds in the dioxin group were OCDD, while in the furan group, they were 1,2,3,4,6,7,8-HpCDF and OCDF. The chlorine content in the molecule appeared to be closely related to the concentration of dioxins and their percentage distribution. However, the levels of furan isomers did not vary significantly. The distribution of these compounds was not dependent on the flow direction, as they were mainly found in solid waste and are not water-soluble. Although the hepta and octa congeners had high concentrations, when converted to TEQ values, the tetra and penta groups (for dioxins) and the penta and hexa groups (for furans) contributed more to toxicity. Furthermore, the source of dioxins in sediments at Da Hoi does not only originate from steel recycling production activities but also from other combustion sites. The average total toxicity was 10.92 ng TEQ/kg d.w, ranging from 4.99 to 17.88 ng TEQ/kg d.w, which did not exceed the threshold specified in QCVN 43:2017/BTNMT, the National Technical Regulation on Sediment Quality. Nonetheless, these levels are still concerning. The presence of these toxic substances not only impacts aquatic organisms in the sampled water environment but also poses potential health risks to residents living nearby. Full article
(This article belongs to the Special Issue Environmental Analytical Chemistry II)
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