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Peli M, Bostick BC, Barontini S, et al. Profiles and species of Mn, Fe and trace metals in soils near a ferromanganese plant in Bagnolo Mella (Brescia, IT). Sci Total Environ. 2020;755:143123doi: 10.1016/j.scitotenv.2020.143123.
Peli, M., Bostick, B. C., Barontini, S., Lucchini, R. G., & Ranzi, R. (2021). Profiles and species of Mn, Fe and trace metals in soils near a ferromanganese plant in Bagnolo Mella (Brescia, IT). The Science of the total environment, 755143123. https://doi.org/10.1016/j.scitotenv.2020.143123
Peli, Marco, et al. "Profiles and species of Mn, Fe and trace metals in soils near a ferromanganese plant in Bagnolo Mella (Brescia, IT)." The Science of the total environment vol. 755 (2021): 143123. doi: https://doi.org/10.1016/j.scitotenv.2020.143123
Peli M, Bostick BC, Barontini S, Lucchini RG, Ranzi R. Profiles and species of Mn, Fe and trace metals in soils near a ferromanganese plant in Bagnolo Mella (Brescia, IT). Sci Total Environ. 2021 Feb 10;755:143123. doi: 10.1016/j.scitotenv.2020.143123. Epub 2020 Oct 16. PMID: 33160660.
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Sci Total Environ. 2021 Feb 10;755:143123. doi: 10.1016/j.scitotenv.2020.143123. Epub 2020 Oct 16.

Profiles and species of Mn, Fe and trace metals in soils near a ferromanganese plant in Bagnolo Mella (Brescia, IT).

The Science of the total environment

Marco Peli, Benjamin C Bostick, Stefano Barontini, Roberto G Lucchini, Roberto Ranzi

Affiliations

  1. Dipartimento di Ingegneria Civile, Architettura, Territorio, Ambiente e di Matematica, DICATAM - Università degli Studi di Brescia; via Branze 43, 25123 Brescia, BS, Italy. Electronic address: [email protected].
  2. Lamont-Doherty Earth Observatory, Columbia University; 61 Route 9W - PO Box 1000, Palisades, NY 10964-8000, USA. Electronic address: [email protected].
  3. Dipartimento di Ingegneria Civile, Architettura, Territorio, Ambiente e di Matematica, DICATAM - Università degli Studi di Brescia; via Branze 43, 25123 Brescia, BS, Italy. Electronic address: [email protected].
  4. Dipartimento di Specialità Medico Chirurgiche, Scienze Radiologiche e Sanità Pubblica, DSMC - Università dezgli Studi di Brescia, Viale Europa 11, 25123 Brescia, BS, Italy; Environmental Medicine & Public Health, Icahn School of Medicine at Mount Sinai, 17 E 102 St Floor Third - West Tower, New York, NY 10029, USA. Electronic address: [email protected].
  5. Dipartimento di Ingegneria Civile, Architettura, Territorio, Ambiente e di Matematica, DICATAM - Università degli Studi di Brescia; via Branze 43, 25123 Brescia, BS, Italy. Electronic address: [email protected].

PMID: 33160660 DOI: 10.1016/j.scitotenv.2020.143123

Abstract

For the last forty-five years (from 1974 to present) ferroalloy production in Bagnolo Mella, Northern Italy, has generated particulate emissions enriched in potentially toxic metals and metalloids including arsenic (As), lead (Pb) and manganese (Mn). Of these, Mn is unique in that it has a significant background concentration and is seldom studied as a contaminant but is potentially a significant toxin derived from dusts regionally. Here we examine the distribution, redistribution, speciation and bioavailability of the Mn-contaminated top soils affected by atmospheric emissions adjacent to the ferroalloy plant. Four sites, variably located in the study area in terms of both distance and direction from the plant, were considered as representative of increasing levels of industrial influence. Soil profiles showed that metal concentrations (measured by X-ray fluorescence) varied considerably by location, i.e. higher in the sites closer to the plant and also at the surface level, although distributed throughout the top 15 cm, suggesting appreciable redistribution possibly due to soil mixing or infiltration. Most metal concentrations were correlated, except Mn which was independent and more variable across the sites than the other elements. Sequential chemical extractions indicated that Pb was primarily associated with Mn oxides, while As was most significantly associated with iron oxides. When Mn concentration significantly exceeded background levels, it was present in phases that were resistant to acid dissolution, very different from typical uncontaminated soils. X-ray Absorption Near Edge Spectroscopy (XANES) analyses suggested this recalcitrant Mn phase is likely a Mn-bearing spinel such as magnetite, that can be particularly toxic if ingested or inhaled. These first results highlight the legacy of ferroalloy production on surrounding soils, as well as the importance of Mn speciation for soil apportionment evaluation and human exposure estimation.

Copyright © 2020 The Authors. Published by Elsevier B.V. All rights reserved.

Keywords: Anthropogenic impact; Compositional data analysis; Sequential extraction procedure; Trace elements; Urban soil contamination

Conflict of interest statement

Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this pa

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