Dr. Gad is a multidisciplinary geoscientist with a background in sedimentology, mineralogy, geochemistry, and environmental geoscience. His research program integrates geochemical, mineralogical, and engineering geological methods to address a wide range of geoenvironmental challenges, including the composition and geochemistry of rock, sediment, and water; sediment and water contamination; rock-water interactions; and health risk assessments.