Selected Papers from the 1st International Electronic Conference on Toxics

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

Deadline for manuscript submissions: 31 July 2024 | Viewed by 1113

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Special Issue Information

Dear Colleagues,

This Special Issue comprises selected papers from the First International Electronic Conference on Toxics, organized by the journal Toxics, from 20 to 22 March 2024 on the MDPI Sciforum platform. We welcome extended versions of the presented papers at this conference to be considered, after the peer-review process, for publication in this Special Issue.

Conference Link:  https://sciforum.net/event/IECTO2024

Dr. Demetrio Raldúa
Prof. Dr. Virgínia Cruz Fernandes
Dr. Gunnar Toft
Dr. Louis A. Tremblay
Dr. Natalia Garcia-Reyero
Prof. Dr. Yankai Xia
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.

Published Papers (1 paper)

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Research

23 pages, 1644 KiB  
Article
Spatiotemporal Gradients of PAH Concentrations in Greek Cities and Associated Exposure Impacts
by Irini Tsiodra, Kalliopi Tavernaraki, Georgios Grivas, Constantine Parinos, Kyriaki Papoutsidaki, Despina Paraskevopoulou, Eleni Liakakou, Alexandra Gogou, Aikaterini Bougiatioti, Evangelos Gerasopoulos, Maria Kanakidou and Nikolaos Mihalopoulos
Toxics 2024, 12(4), 293; https://doi.org/10.3390/toxics12040293 - 16 Apr 2024
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Abstract
To study the spatiotemporal variability of particle-bound polycyclic aromatic hydrocarbons (PAHs) and assess their carcinogenic potential in six contrasting urban environments in Greece, a total of 305 filter samples were collected and analyzed. Sampling sites included a variety of urban background, traffic (Athens, [...] Read more.
To study the spatiotemporal variability of particle-bound polycyclic aromatic hydrocarbons (PAHs) and assess their carcinogenic potential in six contrasting urban environments in Greece, a total of 305 filter samples were collected and analyzed. Sampling sites included a variety of urban background, traffic (Athens, Ioannina and Heraklion), rural (Xanthi) and near-port locations (Piraeus and Volos). When considering the sum of 16 U.S. EPA priority PAHs, as well as that of the six EU-proposed members, average concentrations observed across locations during summer varied moderately (0.4–2.2 ng m−3) and independently of the population of each site, with the highest values observed in the areas of Piraeus and Volos that are affected by port and industrial activities. Winter levels were significantly higher and more spatially variable compared to summer, with the seasonal enhancement ranging from 7 times in Piraeus to 98 times in Ioannina, indicating the large impact of PAH emissions from residential wood burning. Regarding benzo(a)pyrene (BaP), an IARC Group 1 carcinogen and the only EU-regulated PAH, the winter/summer ratios were 24–33 in Athens, Volos, Heraklion and Xanthi; 60 in Piraeus; and 480 in Ioannina, which is afflicted by severe wood-burning pollution events. An excellent correlation was observed between organic carbon (OC) and benzo(a)pyrene (BaP) during the cold period at all urban sites (r2 > 0.8) with stable BaP/OC slopes (0.09–0.14 × 10−3), highlighting the potential use of OC as a proxy for the estimation of BaP in winter conditions. The identified spatiotemporal contrasts, which were explored for the first time for PAHs at such a scale in the Eastern Mediterranean, provide important insights into sources and controlling atmospheric conditions and reveal large deviations in exposure risks among cities that raise the issue of environmental injustice on a national level. Full article
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