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EPA Draft Risk Evaluation of Cyclic Aliphatic Bromide Cluster (HBCD)
Citation:
EPA Draft Risk Evaluation of Cyclic Aliphatic Bromide Cluster (HBCD).
Impact/Purpose:
The focus of the public meeting is to peer review EPA’s draft risk evaluations of Cyclic Aliphatic Bromide Cluster (HBCD).
Description:
The hexabromocyclodecanes (HBCD cluster) in the cyclic aliphatic bromide cluster consists of the following chemicals: Hexabromocyclododecane; 1,2,5,6,9,10-Hexabromocyclododecane; and 1,2,5,6-Tetrabromocyclooctane. HBCD is a flame retardant and is primarily used in construction materials, which may include structural insulated panels (SIPS). The building and construction industry uses expanded polystyrene foam (EPS) and extruded polystyrene foam (XPS) for thermal insulation boards and laminates for sheathing products. HBCD is also used in replacement parts for vehicles and in solder paste. Data reported for the 2016 Chemical Data Reporting period for HBCD indicate that between 1 and 10 million lb of each chemical component were manufactured in or imported into the U.S. in 2015; however, domestic manufacture of HBCD has since ceased. The draft risk evaluations contain: Discussion of chemistry and physical-chemical properties; characterization of uses/sources; environmental fate and transport assessment; engineering release(s) and occupational exposure assessment; general population, consumer and environmental exposure assessment; human health hazard assessment; environmental hazard assessment; risk characterization; risk determination; and a detailed description of the systematic review process developed by the Office of Pollution Prevention and Toxics to search, screen, and evaluate scientific literature for use in the risk evaluation process.
URLs/Downloads:
Draft Risk Evaluation for Cyclic Aliphatic Bromide Cluster (HBCD) (PDF, NA pp, 9536 KB, about PDF)Peer Review of the Draft Risk Evaluations for HBCD
Peer Review Plan (PDF, NA pp, 38 KB, about PDF)
Meeting Minutes and Final Report No. 2019-02 (PDF, NA pp, 1900 KB, about PDF)
CHARGE TO THE PANEL (PDF, NA pp, 291 KB, about PDF)
Transmission of Background Materials and Charge (PDF, NA pp, 314 KB, about PDF)
Response to Comments for HBCD (PDF, NA pp, 1442 KB, about PDF)
Final Risk Evlauation HBCD (PDF, NA pp, 13869 KB, about PDF)