IRIS

Boron and Compounds

System	RfD (mg/kg-day)	Basis	PoD	Composite UF	Confidence
Developmental	2 x 10^-1	Decreased fetal weight (developmental)	BMDL₀₅ : 10.3 mg/kg-day	66	High

Reference Concentration for Inhalation Exposure (RfC) (PDF) (30 pp, 193 K) Last Updated: 08/05/2004
Information reviewed but value not estimated.

Weight of Evidence for Cancer (PDF) (30 pp, 193 K) Last Updated: 08/05/2004

WOE Characterization	Framework for WOE Characterization
Data are inadequate for an assessment of human carcinogenic potential (Oral route)	Revised Draft Guidelines for Carcinogen Risk Assessment (U.S. EPA, 1999)

Basis:

Under the Draft Revised Guidelines for Carcinogen Risk Assessment (U.S. EPA, 1999), data are inadequate for an assessment of human carcinogenic potential for boron.
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.

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