Stable chlorine and carbon isotope measurements of selected chlorinated organic solvents |
| |
| Institution: | 1. Department of Earth Sciences, University of Toronto, 22 Ursula Franklin Street, M5S 3B1, Ontario, Canada;2. AECOM, 1 Canal Rd, Pennsville, NJ 08023, United States;3. Corteva Agriscience, 974 Centre Road, Wilmington, DE 19805, United States;1. Department of Chemical, Biological and Environmental Engineering, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Spain;2. MAiMA group, SGR Applied Mineralogy, Geochemistry and Geomicrobiology, Department of Mineralogy, Petrology and Applied Geology, Faculty of Earth Sciences, Universitat de Barcelona (UB), Martí Franquès s/n, 08028 Barcelona, Spain.;1. Department of Earth Sciences, University of Toronto, Toronto, ON M5S 3B1, Canada;2. CNRS/EOST, ITES UMR 7063, Earth and Environment Institute of Strasbourg (ITES), University of Strasbourg, Strasbourg, 67084, France;3. Department of Geosciences, Auburn University, Auburn, AL 36849, United States;4. Department of Isotope Biogeochemistry, Helmholtz Centre for Environmental Research, UFZ, Leipzig, 04318, Germany;5. The Chemours Company, Wilmington, DE 19810, United States;6. AECOM, Deepwater, NJ 08023, United States;7. DuPont, Wilmington, DE 19805, United States |
| |
| Abstract: | Stable Cl and C isotope ratio results for 3 selected chlorinated solvents, perchloroethylene (PCE), trichloroethylene (TCE) and 1,1,1-trichloroethane (TCA) provided by 4 different manufacturers are presented. The isotope ratio for all compounds range between −3.5 and +6.0‰ forδ37Cl and from −37.2 to −23.3%. forδ13C. The greatest37Cl difference between manufacturers is observed in the TCE samples which showδ37CI values of −2.5%o for PPG, +2.43‰ for ICI and +4.4‰ for DOW. TCAs show a smaller range (−2.4 to +2.0‰), while the TCEs have slightly different37Cl contents. The13C data show the most distinctδ13C values for PCEs (−23.3 for DOW, −24.1 for Vulcan, −33.8 for PPG and −37.2‰ for ICI) while both TCEs and TCAs show a smallerδ13C range, but still distinct differences. These preliminary data suggest that each manufacturer and solvent type may have distinctiveδ637Cl andδ13C values. These results show that by using a combination of37Cl and13C, there is a potential to indicate a specific source of chlorinated solvents, as well as an ability to delineate contamination episodes caused by these compounds in groundwaters. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
