Short course

The Utilization of Compound-Specific Isotope Analysis (CSIA) to Asses Contaminated Sites and Evaluate Remediation Actions

By Orfan Shouakar-Stash, PhD


July, 21 from 9:00 to 15:40


Students: 25 Euro

Professionals: 50 Euro


To present the latest advancement in the applications of compound-Specific Isotope Analysis (CSIA) in characterizing and assessing contaminated sites. The potential audience includes students, environmental professionals, regulators and community stakeholders engaged in management and remediation of contaminated sites.


6 hours


Stable Isotope including Specific Isotope Analysis (CSIA) are one of the most growing tools applied in contaminant studies. This short course is designed to present the latest advancement in CSIA and the potential applications of CSIA in better understanding contaminated sites. CSIA have been successfully used in determining the source of contaminations, understanding the fate of contaminants in the groundwater, and evaluating the effectiveness remediation actions including the performance assessment for a broad range of biological (natural and enhanced), chemical (e.g. In-Situ Chemical Oxidation (ISCO) and Permeable Reactive Barriers (PRB) and physical (e.g. thermal treatment and Pump and treat) remediation strategies. In the last decade, CSIA have been extensively applied to many contaminated sites and the outcome proved to be highly successful. Most previous studies heavily relied on 13C-CSIA, however, recent investigations have been employing additional isotopes (37Cl-CSIA and 2H-CSIA). The recent interest in the two dimensional isotope approach (13C and 37Cl) or in some cases three dimensional isotope approach (13C, 37Cl and 2H) is driven by the advancements in the analytical methodologies, laboratory evidences, and also field applications that demonstrated the added value of the application of multiple – CSIA in contaminant studies. The course will include a short introduction the background of CSIA followed by an extended presentation of several field case studies, with a special focus on the latest advancements in the use of multi-CSIA (13C-CSIA, 37Cl-CSIA, and 2H-CSIA).

The agenda of the short course will cover the following:

  1. Basic concepts of environmental isotopes and CSIA including analytical techniques
  2. Collection, Preservation, and Storage of Samples – laboratory issues and quality control.
  3. CSIA application for source apportionment: case studies.
  4. CSIA for natural attenuation evaluation: case studies.


Director and CEO, Isotope Tracer Technologies Inc., Canada

Dr. Shouakar-Stash is Isotope Hydrogeochemist with an over 20 years of experience. He is the CEO of Isotope Tracer Technologies Inc. (IT2), Dr. Shouakar-Stash is an Adjunct Professor at the School of Engineering at the University of Guelph. He is also an Adjunct Professor at the Department of Earth and Environmental Sciences, University of Waterloo. Dr. Shouakar-Stash’s research interest relates to the development and implementation of isotopic tools in organic and inorganic contaminant investigations and water resource as well as water quality studies. He developed numerous isotopic technical methodologies and initiated and participated in many international and domestic collaboration research projects with researchers from various institutions across the globe. He authored and co-authored an extensive number of scientific papers in international journals and delivered more than 75 presentations in international conferences, some of which were invited talks. 

He trained and supervised undergraduate and graduate students (Master’s and Ph.D. students), as well as visiting scientists and technical personnel. He serves as a peer reviewer in several international Journals. He is an active member of several scientific associations and he currently serves as the secretary of the International Association of Geochemistry and Cosmochemistry (IAGC). Dr. Shouakar-Stash is the CEO and owner of IT2.  IT2 is a state-of-the-art facility that offers a large variety of isotopic analyses on different materials. IT2 is involved in projects and collaboration agreements with various government agencies, consulting companies as well as research institutions and universities in Canada, USA, Europe and other parts of the worldwide.