Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Environmental Chemistry of Chromium.
Author Krishnamurthy, S. ; Wilkens, M. M. ;
CORP Author Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Publisher 1994
Year Published 1994
Report Number EPA/600/J-94/243;
Stock Number PB94-177763
Additional Subjects Chromium ; Environmental health ; Hazardous materials ; Industrial hygiene ; Toxicology ; Oxidation ; Chemical reactions ; Reduction(Chemistry) ; Transport properties ; Exposure ; Carcinogens ; Mutagens ; Toxic substances ; Water pollution ; Soil pollution ; Air pollution ; Chemical anlysis ; Reprints ; Bioremediation ; Hexavalent chromium
Library Call Number Additional Info Location Last
NTIS  PB94-177763 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 09/01/1994
Collation 6p
Chromium is of great environmental concern because hexavalent chromium is a potent carcinogen. The health effects resulting from chromium exposure have received as much attention as those resulting from benzene or asbestos exposure. Although considered innocuous, Cr(III) can be mutagenic and genotoxic when inside the nuclei of cells in target organs. The paper discusses the various oxidation states of the metal in the environment, the interconversion of Cr(III) and CR(VI), the sources of chromium in the environment, and the transport of the metal in the media. Chromium's tendency to change oxidation states, in both environmental media and living cells, is emphasized. It is possible for Cr(VI)to become immobilized in aquifers in a solid phase as barium chromate. This may present a problem in remediation by 'Pump and Treat' technology if the solid phase cannot be easily solubilized. The microbial reduction of hexavalent chromium and bioremediation of chromium-contaminated soil, sediments, and aquifers is summarized.