Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Exposure Analysis for Dioxins, Dibenzofurans, and Coplanar Polychlorinated Biphenyls in Sewage Sludge.
CORP Author Research Triangle Inst., Research Triangle Park, NC. Center for Environmental Analysis.;Environmental Protection Agency, Washington, DC. Office of Water.
Publisher 30 Nov 2001
Year Published 2001
Report Number EPA-68-2-6-0053;
Stock Number PB2002-105133
Additional Subjects Sewage sludge ; Risk assessment ; Public health ; Dioxin ; Polychlorinated biphenyls ; Characterization ; Health effects ; Hazards ; Pollutants ; Toxicity ; Dose-response relationships ; Municipal biosolids
Library Call Number Additional Info Location Last
NTIS  PB2002-105133 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 10/23/2002
Collation 156p
In February 1993, the U.S. Environmental Protection Agency (EPA) published the Standards for the Use or Disposal of Sewage Sludge (40 CFR Part 503). This regulation lists management practices and pollutant limits that protect public health and the environment from the reasonably anticipated adverse effects of pollutants in municipal biosolids (formerly referred to as 'sewage sludge') when the biosolids are land-applied, placed on a surface disposal site, or fired in a biosolids incinerator. The Part 503 rule published in February 1993 is known as the Round One biosolids regulation. Section 405 of the Clean Water Act (CWA) requires EPA to publish a Round Two biosolids regulation, which will contain limits for pollutants not regulated in Round One. Pollutants considered but not regulated under Round One were again considered under Round Two for potential regulation. Subsequently, EPA conducted preliminary exposure analyses in a Comprehensive Hazard Identification exercise to determine which of the 31 pollutants should be on the final pollutant list for potential regulation under Round Two (U.S. EPA, 1996). Based on the results of those analyses, three groups of pollutants were placed on the pollutant list for Round Two: polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and coplanar polychlorinated biphenyls (PCBs). This document describes the risk assessment conducted to determine the concentrations of polychlorinated-p-dioxins, dibenzofurans, and coplanar polychlorinated biphenyls that can be present in biosolids and remain 'protective' (below a specified level of risk) of human health. This risk-based concentration limit was generated by evaluating cancer risks for individuals (receptors) who may be exposed to these constituents if biosolids are applied to agricultural fields.