The environmental impact of anthropogenic activities, particularly the introduction of pollutants like heavy metals, pesticides, and persistent organic chemicals into the soil and water. These pollutants can adversely affect sustainability, biodiversity, nutrient cycling, water quality, and atmospheric conditions. To manage and mitigate these issues, detecting and monitoring the dynamics and behavior of pollutants in the environment is crucial. Traditional methods for detecting trace metals, such as X-ray fluorescence and inductively coupled plasma have limitations that hinder their on-site application. Consequently, several efforts have been made to develop moveable sensors and biosensors to monitor trace metal concentrations in real-time. To improve sensitivity, selectivity, multiplexed detection capabilities, and mobility, nanostructures have been included into sensor designs. In order to selectively attach to trace metals as molecular recognition probes (MRP’s), a variety of sensing components, like DNA, tiny molecules, proteins, and microorganisms, have been included into sensor designs. Different kinds of chemical and biological sensors, including mass-based, electrochemical, and fluorescence sensors, have been developed as a result of recent developments in sensor technology. Electrochemical sensors, in particular, offer advantages for example low cost, ease of fabrication and use, miniaturization capability, and suitability for point-of-demand applications. This insightful chapter examines the transformative impact of sensor and biosensor technologies in the domain of soil contamination detection. Through a discerning lens, it scrutinizes the latest innovations and methodologies, offering a nuanced perspective on their applications. This exploration not only elucidates the technical intricacies of these advancements but also highlights their broader implications for sustainable soil management. Engaging and informative, the chapter unveils a new era in environmental monitoring, where precision and adaptability converge to address the complex challenges of soil quality assurance.