1. Αποθετήριο Παραδοτέων Υποτρόφων Δράσεων ΕΣΠΑ Τριτοβάθμιας Εκπαίδευσης 2017-2023
2. Όλο το Αποθετήριο
3. Μεταδιδακτορικοί ερευνητές

Τύπος:	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	An integrated approach combining magnetic, geochemical and particle-based techniques to assess metal(loid) loadings in urban venues frequented by children
Συγγραφέας:	[EL] Μπουρλίβα, Άννα[EN] Bourliva, Anna [EL] Αηδόνα, Ελένη[EN] Aidona, Eleni [EL] Παπαδοπούλου, Λαμπρινή[EN] Papadopoulou, Lambrini [PT] Ferreira da Silva, Eduardo [PT] Patinha, Carla [EL] Σαραφίδης, Χαράλαμπος[EN] Sarafidis, Charalambos [EL] Καντηράνης, Νικόλαος[EN] Kantiranis, Nikolaos
Ημερομηνία:	02/02/2022
Περίληψη:	Urban venues frequented by children, such as playgrounds, are potentially important sources of exposure to anthropogenic metal(loids). Environmental quality of outdoor playgrounds is mainly assessed through direct geochemical monitoring, which is time-consuming and expensive. In this study we adapted a multidisciplinary approach combining magnetic measurements, geochemical analyses, particle-based techniques and bioaccessibility data so as to evaluate the applicability of magnetic methods as a low-cost and easy-to-use technology to monitor pollution level in public playgrounds. Playground sands were collected and their magnetic characteristics were studied in detail aiming to gain helpful additional details in relation to the type, concentration and particle-size distribution of the sand-bound magnetic particles. The obtained χlf values indicated an enhanced level of sand-bound magnetic components, while the dominant control of SSD grains on the magnetic load of playground-PG sands was revealed. Hysteresis parameters and thermomagnetic curves indicated low-coercivity ferrimagnetic minerals, such as magnetite and/or maghemite, as the predominant magnetic carriers. Ratios of χARM/χlf and χARM/SIRM indicated the dominance of coarser anthropogenic magnetic grains in the sampled PG sands compared to other recreational areas. Correlation analysis among magnetic variables and reported metal(loid) contents designated χARM as a more effective indicator for the detection of anthropogenic load in PG sand samples than χlf or SIRM. Simultaneously, through geochemical analyses in magnetic extracts separated from PG sands, metal(loid) contents were notably enriched in the magnetic fraction validating their strong affinity with sand-bound magnetic particles. Finally, bioaccessibility tests revealed lower UBM-extracted fractions for the magnetic extracts of PG sands compared to bulk samples. However, arsenic (As) was more bioaccessible in the sand-bound magnetic particles raising serious concerns for the children exposed to playground sands.
Γλώσσα:	Αγγλικά
Σελίδες:	11
DOI:	10.1016/j.scitotenv.2022.153600
ISSN:	0048-9697
Θεματική κατηγορία:	[EL] Γεωεπιστήμες, άλλοι τομείς[EN] Geosciences, miscellaneous
Λέξεις-κλειδιά:	playground sand; magnetic properties; Heavy metals; bioaccessibility
Κάτοχος πνευματικών δικαιωμάτων:	© 2022 Elsevier B.V. All rights reserved
Ηλεκτρονική διεύθυνση του τεκμηρίου στον εκδότη:	https://www.sciencedirect.com/science/article/pii/S0048969722006921
Ηλεκτρονική διεύθυνση περιοδικού:	https://www.sciencedirect.com/journal/science-of-the-total-environment
Τίτλος πηγής δημοσίευσης:	Science of the Total Environment
Τεύχος:	822
Σελίδες τεκμηρίου (στην πηγή):	Article no 153600
Σημειώσεις:	This study is part of the postdoctoral research of the first author, A. Bourliva, which is co-financed by Greece and the European Union (European Social Fund- ESF) 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