Past Seminars

Advancement in the application of CSIA in chlorinated solvent contamination studies

Details
  • Dr. Orfan Shouakar-Stash, Director and Research and Development ManagerIsotope Tracer Technologies Inc., Waterloo, Canada; School of Engineering, University of Guelph, Canada;Department of Earth and Environmental Sciences,University of Waterloo, Canada
  • Date: May, 26, 2015 12:00 am
  • Place: Sala d’Actes ICTJA-CSIC
  • Location: C/ Solé i Sabarís s/n, Barcelona
  • Further information: Jordi Palau (UB), Albert Soler (UB)

Abstract

Chlorinated solvents such as tetrachloroethene (PCE) and trichlorethene (TCE) are among the most commonly detected hazardous organic compounds encountered in groundwater. These compounds are one of the most ubiquitous and recalcitrant pollutants of groundwater and soil. Compound-specific isotope analysis (CSIA) is an innovative approach that can provide a unique insight into the origin and fate of contaminants in the subsurface, including the examination of transformation mechanisms and degradation pathways of these compounds in the field. Over the last decade, carbon CSIA has been successfully utilized in assessing various contaminated sites across the globe. Recent analytical advancements in chlorine and hydrogen CSIA have opened new possibilities and enabled consultants and researchers to start employing chlorine and hydrogen CSIA in their case studies. The application of dual element CSIA approach increases the resolution of the CSIA method and improves the possibility to differentiate between natural and anthropogenic organic compounds even if biodegradation occurs.

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