Record Display for the EPA National Library Catalog


Main Title Methods to develop inhalation cancer risk estimates for chromium and nickel compounds.
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Office of Air Quality Planning and Standards.
Publisher U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, Health and Environmental Impacts Division,
Year Published 2011
Report Number EPA/452/R-11/012
Stock Number PB2012-101983
OCLC Number 768422687
Subjects Chromium--Toxicology ; Nickel--Toxicology ; Cancer
Additional Subjects Inhalation ; Cancer ; Air pollution effects ; Emissions ; Chromium ; Nickel compounds ; Air toxics ; Pollution sources ; Risk assessment
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EKBD  EPA-452/R-11-012 Research Triangle Park Library/RTP, NC 12/19/2011
NTIS  PB2012-101983 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 16 p. ; 28 cm.
The purpose of this paper is to discuss the methods used to develop inhalation cancer risk estimates associated with emissions of chromium and nickel compounds from coal- and oil-fired electric utility steam generating units (EGUs) in support of EPA's recently proposed Air Toxics Rule. The derivation of cancer risk estimates is based on the speciation data available from selected source types, and on the available unit risk estimates (UREs) reflecting the dose that corresponds to a specific level of cancer risk. This document includes discussions for both emissions of chromium (Section 2) and nickel (Section 3) compounds with regard to: (1) the methods and rationale used in previous analyses (where applicable), (2) the methods used in the recent analysis for the Air Toxics Rule (considering previous methods and currently available data), and (3) a discussion of the uncertainties and/or limitations of the methods used. In this document, we consider the emissions of chromium compounds from both coal- and oil-fired EGUs and the emissions of nickel compounds from oil-fired EGUs, since these are major contributors to inhalation cancer risk estimates from each these source types.
"October 2011". Project Officer: Ines Pagan. "EPA-452/R-11-012". Includes bibliographical references.