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Chromium isotopes and the fate of hexavalent chromium in the environment

March 15, 2002

Measurements of chromium (Cr) stable-isotope fractionation in laboratory experiments and natural waters show that lighter isotopes reacted preferentially during Cr(VI) reduction by magnetite and sediments. The 53Cr/52Cr ratio of the product was 3.4 ± 0.1 per mil less than that of the reactant.53Cr/52Cr shifts in water samples indicate the extent of reduction, a critical process that renders toxic Cr(VI) in the environment immobile and less toxic.

Publication Year 2002
Title Chromium isotopes and the fate of hexavalent chromium in the environment
DOI 10.1126/science.1068368
Authors Andre S. Ellis, Thomas M. Johnson, Thomas D. Bullen
Publication Type Article
Publication Subtype Journal Article
Series Title Science
Index ID 70185143
Record Source USGS Publications Warehouse
USGS Organization Toxic Substances Hydrology Program
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