ASTM E2020-99a(2004) pdf free download.Standard Guide for Data and Information Options for Conducting an Ecological Risk Assessment at Contaminated Sites.
ASTM E2020-99a(2004) is intended to assist remedial project teams, specifically ecological risk assessors, in identifying data and information options that may be used to perform a screening or complex ecological risk assessment (ERA) at a contaminated site.
Referenced Documents
ASTM Standards
ASTM D5730 Guide for Site Characterization for Environmental Purposes With Emphasis on Soil, Rock, the Vadose Zone and Groundwater;
ASTM E1391 Guide for Collection, Storage, Characterization, and Manipulation of Sediments for Toxicological Testing and for Selection of Samplers Used to Collect Benthic Invertebrates;
ASTM E1525 Guide for Designing Biological Tests with Sediments;
ASTM E1689 Guide for Developing Conceptual Site Models for Contaminated Sites;
ASTM E1848 Guide for Selecting and Using Ecological Endpoints for Contaminated Sites;
4. Summary of Guide
This guide provides a series of lists of data and information options for conducting an ecological risk assess ment at a contaminated site and is organized in accordance with the major components of the risk assessment process:
problem formulation, exposure characterization, effects characterization, and risk characterization (1-4)。Lists are provided for screening and complex ERAs.
5. Significance and Use
5.I This guide is significant in that it addresses the data and information options of each component of the ecological risk assessment process, for both a screening and complex ERA. It outlines the data and information options while recognizing that an ecological risk assessment may be focused to achieve a particular stated goal. This guide is not intended to represent the views of the U.S. Environmental Protection Agency (USEPA)， or any other regulatory agency, on data collection for ecological risk assessment.
General Guidance on Determining Data Collection Options for Ecological Risk Assessment
6.I It is imperative that the goals of the ERA are outlined at the beginning of the ERA process. Data collection efforts may then be focused to ensure a sound scientific approach and cost-effective use of resources, for example, time and money.
6.2 The lists are not meant to be exhaustive. Neither are they intended to be lists of data required for all ERAs. The amount and type of data required for a screening or complex ERA will depend upon the size and location of the site, the future intended use of the site, the complexity of the site, and the outcome of the data quality objectives (DQO) process (5).A typical site may utilize only a small percentage of these data and information options. These lists are intended to serve as a general index to data collection efforts.