Record Display for the EPA National Library Catalog
RECORD NUMBER: 167 OF 767
|OLS Field Name||OLS Field Data|
|Main Title||Chapter 18: Workgroup Summary Report on an Uncertainty Evaluation of Measurement Endpoints Used in Sediment Ecological Risk Assessments.|
|Author||Ingersoll, C. G. ; Ankley, G. T. ; Baudo, R. ; Burton, G. A. ; Lick, W. ;|
|CORP Author||Corvallis Environmental Research Lab., OR. ;National Biological Service, Onalaska, WI.|
|Additional Subjects||Bottom sediments ; Aquatic ecosystems ; Uncertainty analysis ; Risk assessment ; Exposure ; Bioavailability ; Bioaccumulation ; Ecological concentration ; Environmental persistence ; Toxicity ; Water pollution effects ; Benthos ; Invertebrates ; Environmental impact assessments ; Chemical analysis ; Endpoints ; Sediment Quality Criteria|
This chapter describes the uncertainty associated with specific measurement endpoints commonly used in sediment ecological risk assessments (SERAs) and discusses approaches for addressing these sources of uncertainty. These step-wise procedures provide explicit guidance on the four major elements of risk assessments, including: problem formulation, exposure assessment, effect assessment, and risk characterization. In addition, several types of measurement endpoints were identified at the Workshop which have been used to conduct these SERAs, including: (1) toxicity tests (both the fraction tested and the endpints selected); (2) benthic invertebrate assessments; (3) bioaccumulation assessments; (4) sediment chemistry; and (5) sediment quality quidelines.