Deducing the distribution of terminal electron-accepting processes (TEAPs) in hydrologically
diverse groundwater systems
Chappelle et al. (1995)Water Resources Research, Vol 31, No. 2
I TEAPs It Real
• The Basics• Water chem can determine TEAPs by
1. Tracking electron acceptor consumption2. Tracking final product accumulation3. Tracking intermediate product concentrations
• Previous studies fail to TEAPs it real• Hydrogen (H2) concentrations an important
intermediate product indicator of TEAPs
CONCLUSIONS
• The main, important observation is that H2 concentration ranges for different TEAPs are consistent between the diverse hydrologic systems studied
• H2 Concentrations are a useful indicator for TEAPs and increase confidence when used in conjunction with electron acceptor consumption and final product production.