Total Dissolved Gas Pressure Measurements for Assessing Contaminant Degradation Processes in Groundwater

Abstract The total dissolved gas pressure ( P TDG ) probe has been used in groundwater studies for over a decade, but rarely in assessing contaminant degradation, despite the many degradation reactions that produce or consume dissolved gases. Here we present three studies to demonstrate the application of P TDG measurements to groundwater experiencing contaminant degradation, with discussion of its benefits and limitations. The first study …