Millions of tons of chromite-ore processing residue have been used as fill in various locations in northern New Jersey and elsewhere in the United States.
The primary toxicants in the residue are trivalent chromium [Cr(III)] and hexavalent chromium [Cr(VI)]. The hazard posed by Cr(III) is negligible due to its low acute and chronic toxicity.
In contrast, Cr(VI) is a human carcinogen following inhalation of high concentrations.
It can also cause allergic contact dermatitis.
This evaluation addresses a residential site where the arithmetic mean (x) and geometric mean (gm) concentrations of Cr(III) in soil were 2879 and 1212 mg/kg (ppm).
Mots-clés Pascal : Chrome, Polluant, Environnement, Métal lourd, Sol, Chrome III, Chrome "VI", Toxicité, Résidu, Déchet, Industrie extractive, Evaluation, Risque, Homme, Devenir polluant, Exposition, Zone résidentielle
Mots-clés Pascal anglais : Chromium, Pollutant, Environment, Heavy metal, Soils, Chromium III, Chromium "VI", Toxicity, Residue, Wastes, Mining industry, Evaluation, Risk, Human, Pollutant behavior, Exposure, Residential zone
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 91-0484620
Code Inist : 002B03M01. Création : 199406.