Chromium(III), insoluble salts CASRN 16065-83-1 | IRIS

IRIS

System	RfD (mg/kg-day)	Basis	PoD	Composite UF	Confidence
Other	1.5	No effects observed	NOAEL (ADJ): 1.468 x 10³ mg/kg-day	100 MF: 10	Low

Reference Concentration for Inhalation Exposure (RfC) (PDF) (17 pp, 136 K) Last Updated: 09/03/1998
Information reviewed but value not estimated.

Weight of Evidence for Cancer (PDF) (17 pp, 136 K) Last Updated: 09/03/1998

WOE Characterization	Framework for WOE Characterization
D (Not classifiable as to human carcinogenicity)	Guidelines for Carcinogen Risk Assessment (U.S. EPA, 1986)
Carcinogenic potential cannot be determined	Proposed Guidelines for Carcinogen Risk Assessment (U.S. EPA, 1996)

Basis:

Applying the criteria for evaluating the overall weight-of-evidence for carcinogenicity to humans outlined in EPA's guidelines for carcinogen risk assessment (U.S. EPA, 1986), trivalent chromium is most appropriately designated a Group D -- Not classified as to its human carcinogenicity. Using the Proposed Guidelines for Carcinogen Risk Assessment (EPA, 1996), there are inadequate data to determine the potential carcinogenicity of trivalent chromium, as discussed below. However, the classification of hexavalent chromium as a known human carcinogen raises a concern for the carcinogenic potential of trivalent chromium.
This may be a synopsis of the full weight-of-evidence narrative.

Not assessed under the IRIS Program.

Not assessed under the IRIS Program.

Additional EPA toxicity information may be available by visiting the following sites:

Human Health Benchmarks for Pesticides (HHBP). This database provides human health benchmarks for pesticides that may be present in drinking water.
Office of Pesticide Programs Pesticide Chemical Search. This database provides links to health effects information and registration status for pesticides.
Chemistry Dashboard. This database provides information on chemical structures, experimental and predicted physicochemical, and toxicity data.

You will need Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more.