This course provides deep technical insights into advanced, field-deployable environmental monitoring solutions developed under the European Union's iMERMAID framework. Designed to bridge the operational gap between slow, laboratory-bound testing and the urgent need for real-time actionable data, this program equips environmental authorities, industrial operators, and water utilities with the competencies required to detect emerging chemical pollutants, hazardous heavy metals (Zn, Cd, Pb, Cu), oil-derived volatile organic compounds (VOCs), and large-scale maritime oil spills. Participants will explore cutting-edge technologies—including miniaturized electrochemical sensors, electronic screening boxes (ECS Boxes), membrane-inlet mass spectrometers, and satellite-based artificial intelligence models—while learning to mitigate real-world engineering challenges such as electrical noise, biofouling, and signal stabilization based on actual industrial and marine use cases across the Mediterranean region.