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.

本文显示了对Bagnoli（意大利南部那不勒斯）已退役工业区的地球化学地球物理调查结果。对21个沉积物岩心进行了15种优先级的多环芳烃（PAHs）分析，这些沉积物岩心收集在上个世纪活跃的旧钢铁工业工厂周围的海滩上。

在该区域中检测到异常高浓度的PAHs，高达87,000μgg ^-1 dw。特别是，大多数同类物埋在主要为沙层的内部，具有深色和高电阻率值。电阻层析成像，化学数据和对岩心的直接观察的结合使用，使得对应于20,200 m ³的被污染层的体积估算成为可能。总计24,100 m ³污染程度较低的材料覆盖了深色的，污染严重的层。此外，地球物理-环境方法有助于弄清海滩区域，沿海变化和流体喷口之间的深层相互作用。实际的海岸形态是我们通过使用可用的历史图像重建的，人类驱动的历史快速演变的结果。取得的成果强调了结合地球物理和地球化学方法学所发挥的关键作用，以便更深入，系统地了解受多种和多种压力源共同作用的沿海系统的人为影响。