Investigation of Groundwater Contamination using Electrical Resistivity Tomography in an Urban Environment

Project Abstract

**** Groundwater contamination is a significant environmental concern that poses risks to human health and ecosystems. In urban environments, the sources of contamination are diverse and complex, necessitating advanced techniques for accurate assessment and monitoring. Electrical Resistivity Tomography (ERT) is a geophysical method that has shown promise in mapping subsurface structures and detecting variations in groundwater properties. This research focuses on the investigation of groundwater contamination using ERT in an urban environment, aiming to enhance understanding of the spatial distribution and extent of contamination. The study begins with a comprehensive review of existing literature on groundwater contamination, ERT principles, and applications in urban settings. The literature review highlights the importance of accurate subsurface imaging and monitoring techniques in identifying potential sources of contamination and assessing the risk to groundwater resources. The research methodology involves the collection of geophysical data using ERT surveys at selected sites within the urban area under investigation. The data acquisition process includes the setup of electrodes, measurement of resistivity values, and data processing to create subsurface models. Ground-truthing methods, such as borehole sampling and water quality analysis, are employed to validate the ERT results and provide insights into the geochemical composition of the aquifer. The findings from the ERT surveys reveal spatial variations in subsurface resistivity values, indicating potential zones of contamination in the urban environment. The integration of ERT data with hydrogeological information allows for the identification of pathways for contaminant transport and the delineation of contaminated plumes. The discussion of results emphasizes the importance of combining geophysical and hydrogeological approaches for a holistic understanding of groundwater contamination dynamics in urban areas. The research contributes to the advancement of knowledge in geophysics and environmental science by demonstrating the effectiveness of ERT in mapping groundwater contamination in urban environments. The study underscores the significance of integrating geophysical surveys with traditional hydrogeological methods to enhance the accuracy and reliability of contamination assessments. In conclusion, the investigation of groundwater contamination using ERT in an urban environment offers valuable insights into the spatial distribution and characteristics of contaminants in the subsurface. The research findings provide a basis for informed decision-making and remediation strategies to mitigate the risks associated with groundwater pollution. Moving forward, continued research and technological advancements in geophysics will play a crucial role in addressing environmental challenges and safeguarding groundwater resources in urban areas. Overall, this research contributes to the broader field of geophysics and environmental science, highlighting the potential of ERT as a valuable tool for investigating groundwater contamination in urban environments and facilitating sustainable resource management practices. **Word Count 392**

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