Record Display for the EPA National Library Catalog


Main Title Toxicological Review of Urea (CAS No. 57-13-6). In Support of Summary Information on the Integrated Risk Information System (IRIS).
CORP Author Environmental Protection Agency, Washington, DC.
Year Published 2011
Report Number EPA/635/R-10/005F
Stock Number PB2011-112777
Additional Subjects Toxicology ; Blood urea nitrogen ; Inhalation ; Carcinogensis ; Health effects ; Exposure ; Chemical properties ; Dose-response assessment ; Hazard identification ; Absorption ; Distribution ; Metabolism ; Physiology ; Integrated Risk Information System(IRIS)
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB2011-112777 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 97p
This document presents background information and justification for the Integrated Risk Information System (IRIS) Summary of the hazard and dose-response assessment of urea. IRIS Summaries may include oral reference dose (RfD) and inhalation reference concentration (RfC) values for chronic and other exposure durations, and a carcinogenicity assessment. The RfD and RfC, if derived, provide quantitative information for use in risk assessments for health effects known or assumed to be produced through a nonlinear (presumed threshold) mode of action. The RfD (expressed in units of mg/kg-day) is defined as an estimate (with uncertainty spanning perhaps an order of magnitude) of a daily exposure to the human population (including sensitive subgroups) that is likely to be without an appreciable risk of deleterious effects during a lifetime.