Main Article Content
In Brazil, until the 1970s, industrial and urban waste was directly disposed of in the soil, as it was believed that the soil was an unlimited receptor for disposable and noxious substances. However, this capability was overestimated, causing irreparable damage to the environment. Geophysics has been shown to be effective in identifying areas contaminated by waste disposal, contributing to the greater efficiency of soundings programs and the installation of monitoring wells. In this work we have evaluated the potential of the Ground Penetrating Radar (GPR) method in the characterization of a hazardous waste site generated by the lead ore processing, where the slag resulting from this process was used to pave streets and backyard residences in the town of Santo Amaro, state of Bahia, situated on the domain of the massapê soil. The used method enabled the identification of geophysical anomalies, which characterized the presence of contamination from slag material. It was also possible to define the interface between the paving and the soil-slag, as well as the interface between the soil-slag and the massapê soil. Chemical analysis of the soil confirmed the contamination, with high concentrations of lead found in at least three drill holes. The geophysical method used in the investigation provided an excellent tool for environmental characterization of the area, and could be applied in the study of similar areas elsewhere.
The papers are published in the open access format, being freely available to any user, under a CC-BY Creative Commons license.
By submitting this manuscript for evaluation, the authors are aware of the CC-BY Creative Commons license. In the case of manuscript approval, the author responsible for the manuscript (corresponding author), hereinafter referred to as CEDENTE (ASSIGNOR), hereby assigns and transfers to CPRM-Serviço Geológico do Brasil, holder of the JGSB, free of charge, on his behalf and on behalf from all co-authors, the right of the first publication. This includes the rights of editing, publication, translation into another language and reproduction by any process, worldwide, today and in the future.
After the first publication by the JGSB, authors hold the copyright without restrictions and are allowed to disclose and distribute their work through personal website pages and institutional repositories.
At the same time, the ASSIGNOR declares that the content of the manuscript is of sole responsibility of the authors and that this content does not infringe the copyrights and/or other property rights of third parties, that is, that any contents of the manuscript and its attachments, if taken from other publications, are duly referenced and, when necessary, the permissions for publications of such contents were requested by the authors from the copyright holders; that the disclosure of images (if any) has been authorized and that it assumes full moral and/or patrimonial responsibility, due to its content, before third parties.