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Main Title Toxicological Review of 1,1,2,2-Tetrachloroethane (CAS No. 79-34-5). In Support of Summary Information on the Integrated Risk Information System (IRIS).
Author M. W. Gehlhaus ; A. Bale ; G. W. Patton ; S. Rieth ; T. Berner
CORP Author Environmental Protection Agency, Washington, DC.
Year Published 2010
Report Number EPA/635/R-09/001F
Stock Number PB2011-106122
Additional Subjects Toxicity ; Tetrachloroethane ; Environmental exposure ; Risk assessment ; Health effects ; Dose-response relationships ; Oral dosage ; Human population ; Inhalation ; Respiratory system ; Carcinogenicity ; CAS No 79-34-5 ; Integrated Risk Information System(IRIS)
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NTIS  PB2011-106122 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 222p
Abstract This document presents background information and justification for the Integrated Risk Information System (IRIS) Summary of the hazard and dose-response assessment of 1,1,2,2-tetrachloroethane. 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. The inhalation RfC (expressed in units of mg/m3) is analogous to the oral RfD, but provides a continuous inhalation exposure estimate. The inhalation RfC considers toxic effects for both the respiratory system (portal-of-entry) and for effects peripheral to the respiratory system (extrarespiratory or systemic effects). Reference values are generally derived for chronic exposures (up to a lifetime), but may also be derived for acute (.24 hours), short-term (>24 hours up to 30 days), and subchronic (>30 days up to 10 percent of lifetime) exposure durations, all of which are derived based on an assumption of continuous exposure throughout the duration specified. Unless specified otherwise, the RfD and RfC are derived for chronic exposure duration.
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PUB Date Free Form Sep 2010
Category Codes 57Y; 57U; 68G
NTIS Prices PC A11/MF A11
Document Type NT
Cataloging Source NTIS/MT
Control Number 110202570
Origin NTIS
Type CAT