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https://hdl.handle.net/123456789/1073| Τύπος: | Άρθρο σε επιστημονικό περιοδικό |
| Τίτλος: | Size-resolved redox activity and cytotoxicity of water-soluble urban atmospheric particulate matter: assessing contributions from chemical components |
| Συγγραφέας: | [EL] Μπέσης, Αθανάσιος[EN] Besis, Athanasios [EN] Romano, Maria Pia [EL] Σεραφείμ, Ελένη[EN] Serafeim, Eleni [EL] Αυγενικού, Αννα[EN] Avgenikou, Anna [EL] Κούρας, Αθανάσιος[EN] Kouras, Athanasios [EN] Lionetto, Maria Giulia [EN] Guascito, Maria Rachele [EN] de Bartolomeo, Anna Rita [EN] Giordano, Maria Elena [EN] Mangone, Annarosa [IT] Contini, Daniele [EL] Σαμαρά - Κωνσταντίνου, Κωνσταντίνη[EN] Samara - Konstantinou Constantini |
| Ημερομηνία: | 07/01/2023 |
| Περίληψη: | Chemical and toxicological characterization of the water-soluble fraction of size segregated particulate matter (PM) (<0.49, 0.49-0.95, 0.95-1.5, 1.5-3.0, 3.0-7.2 and >7.2 μm) was carried out in the urban agglomeration of Thessaloniki, northern Greece, during the cold and the warm period of 2020. Chemical analysis of the water-soluble PM fraction included water-soluble organic carbon (WSOC), Humic-LIke Substances (HULIS), and trace elements (Al, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Cd and Pb). The bulk (sum of all size fractions) concentrations of HULIS were 2.5±0.5 and 1.2±0.3 μg m-3, for the cold and warm sampling period, respectively with highest values in the <0.49 μm particle size fraction. The total HULIS-C/WSOC ratio ranged from 17 to 26% for all sampling periods, confirming that HULIS are a significant part of WSOC. The most abundant water-soluble metals were Fe, Zn, Cu, and Mn. The oxidative PM activity was measured abiotically using the dithiothreitol (DTT) assay. In vitro cytotoxic responses were investigated using mitochondrial dehydrogenase (MTT). The correlations between the observed bioactivity responses and the concentrations of water-soluble chemical PM constituents in the various size ranges were investigated. To obtain further insight into the dominant PM constituents linked with OP measure, multiple linear regression analysis (MLR) have employed. |
| Γλώσσα: | Αγγλικά |
| Σελίδες: | 15 |
| DOI: | 10.3390/toxics11010059 |
| ISSN: | 2305-6304 |
| Θεματική κατηγορία: | [EL] Περιβαλλοντική χημεία[EN] Environmental Chemistry |
| Λέξεις-κλειδιά: | WSOC; HULIS; water soluble elements; DTT assay; MTT assay; Size distribution; PAHs; N/OPAHs; water soluble elements |
| Κάτοχος πνευματικών δικαιωμάτων: | © 2023 by the authors. Licensee MDPI, Basel, Switzerland. |
| Όροι και προϋποθέσεις δικαιωμάτων: | This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). |
| Ηλεκτρονική διεύθυνση του τεκμηρίου στον εκδότη: | https://www.mdpi.com/2305-6304/11/1/59 |
| Ηλεκτρονική διεύθυνση περιοδικού: | https://www.mdpi.com/journal/toxics |
| Τίτλος πηγής δημοσίευσης: | Toxics |
| Τεύχος: | 1 |
| Τόμος: | 11 |
| Σελίδες τεκμηρίου (στην πηγή): | Article no 59 |
| Σημειώσεις: | This research is co-financed by Greece and the European Union (European Social FundESF) through the Operational Programme «Human Resources Development, Education and Lifelong Learning» in the context of the project “Reinforcement of Postdoctoral Researchers—2nd Cycle” (MIS-5033021), implemented by the State Scholarships Foundation (ΙΚΥ). |
| Εμφανίζεται στις συλλογές: | Μεταδιδακτορικοί ερευνητές |
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