Pollution detection by electromagnetic induction and electrical resistivity methods: an introductory note with case studies

This chapter introduces the combined usage of electromagnetic induction and electrical resistivity methods for the assessment of soil pollution at shallow depths, with a particular focus on situations of potential contamination of groundwater. After a brief introduction of the electrical resistivity tomography (ERT) and the electromagnetic induction (EMI) techniques, three case studies are presented, dealing with potential threats to groundwater resources, in which the synergic usage of ERT and EMI permitted effective investigations about the contamination status and possible threats.