Coupled geophysics and geochemistry to record recent coastal changes of contaminated sites of the Bagnoli industrial area, Southern Italy
| Autor: | Salvatore Passaro, Giulio Sesta, Stella Tamburrino, Mario Sprovieri, Elena Romano, Giancarlo Pierfranceschi, Antonella Ausili, Serena Gherardi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
010504 meteorology & atmospheric sciences 010604 marine biology & hydrobiology Industrial area Coastal changes Direct observation Geochemistry Sediment Geophysics Aquatic Science Contamination Oceanography Dark colour 01 natural sciences Polycyclic aromatic hydrocarbons High resistivity Geophysical survey Environmental science Sediment pollution Electrical resistivity tomography 0105 earth and related environmental sciences |
| Zdroj: | Estuarine, coastal and shelf science 246 (2020). doi:10.1016/j.ecss.2020.107036 info:cnr-pdr/source/autori:Passaro, Salvatore; Gherardi, Serena; Romano, Elena; Ausili, Antonella; Sesta, Giulio; Pierfranceschi, Giancarlo; Tamburrino, Stella; Sprovieri, Mario/titolo:Coupled geophysics and geochemistry to record recent coastal changes of contaminated sites of the Bagnoli industrial area, Southern Italy/doi:10.1016%2Fj.ecss.2020.107036/rivista:Estuarine, coastal and shelf science (Print)/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:246 |
| DOI: | 10.1016/j.ecss.2020.107036 |
| Popis: | The paper shows the results of a geochemical - geophysical survey on the decommissioned industrial area of Bagnoli (Naples, southern Italy). Analyses of 15 priority congeners of Polycyclic Aromatic Hydrocarbons (PAHs) were carried out on 21 sediment cores, collected on the beaches surrounding the old iron and steel industrial plant that was active over the last century. Anomalous high concentrations of PAHs were detected in this area, up to 87,000 μg g−1 d.w. In particular, most congeners were embedded inside a mainly sandy layer, characterized by a dark colour and high resistivity values. The joined use of Electrical Resistivity Tomography, chemical data and direct observation of cores allowed a volumetric estimation of the polluted layer corresponding to 20,200 m3. A total of 24,100 m3 of less polluted materials cover the dark, highly polluted layer. In addition, the geophysical-environmental approach helped to disentangle the deep interactions between the beach area, coastal changes and fluid vents. The actual coastal morphology is the result of historical, anthropic-driven rapid evolution that we reconstructed by using available historical images. The achieved results underline a crucial role played by combining geophysical and geochemical methodologies for a deeper and systematic understanding of anthropogenic impacts in coastal systems affected by multiple and combined stressors. |
| Databáze: | OpenAIRE |
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