US EPA

Health and Environmental Effects Documents (HEEDS) are prepared for the Office of Solid Waste and Emergency Response (OSWER). his document series is intended to support listings under the Resource Conservation and Recovery Act (RCRA) as well as to provide health-related limits and goals for emergency and remedial actions under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA). oth published literature and information obtained from Agency Program Office files are evaluated as they pertain to potential human health, aquatic life and environmental effects of hazardous waste constituents. Several quantitative estimates are presented provided sufficient data are available. or systemic toxicants, these include Reference Doses (RfDs) for chronic and subchronic exposures for both the inhalation and oral exposures. n the case of suspected carcinogens, RfDs may not be estimated. nstead, a carcinogenic potency factor, or q1*, is provided. hese potency estimates are derived for both oral and inhalation exposures where possible. n addition, unit risk estimates for air and drinking water are presented based on inhalation and oral data, respectively. eportable quantities (RQs) based on both chronic toxicity and carcinogenicity are derived. he RQ is used to determine the quantity of a hazardous substance for which notification is required in the event of a release as specified under CERCLA.

U.S. EPA. HEALTH AND ENVIRONMENTAL EFFECTS DOCUMENT FOR BORON AND BORON COMPOUNDS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/8-91/015 (NTIS PB91233635), 1991.