Geochemist/Hydrogeologist, Lawrence Berkeley National Laboratory

Professor of Geochemistry, University of Massachusetts

Professor of Hydrogeology, University of British Columbia

University of Orléans, Lawrence Berkeley National Laboratory

Scientific Researcher, IDAEA-CSIC

Freiberg

University of Paris, Laboratoire des sciences du climat et de l'environnement

Helmholtz Centre for Environmental Research - UFZ

University of Nebraska-Lincoln (UNL)

University of Illinois