A series of six workshops was conducted by the Environmental Sciences Division, Oak Ridge National Laboratory, to identify laboratory methods and data evaluation techniques for predicting the environmental effects of chemical substances. Methods were evaluated for their potential for standardization and for use in the ecological hazard and risk assessment processes under the Toxic Substances Control Act. The workshops addressed assessment and policy requirements of multispecies toxicology test procedures, mathematical models useful in hazard and risk assessments, and methods for measuring effects of chemicals on terrestrial and aquatic population interactions and ecosystem properties. The workshops were primarily used as a mechanism to gather information about research in progress. This information was part of the data base used to prepare a critical review of laboratory methods for ecological toxicology. (ERA citation 06:029357)

Includes bibliographical references. At head of title: Contract No. Contract Number: W-7405-eng-26 ORNL-5709. EPA-560/6-81-004. ESD Publication No. 1778 (July 1981, Interagency agreement no. EPA 78-D-X0387).

Describes assessment and policy requirements of multispecies toxicology testing procedures, mathematical models useful in toxicity assessment, methods for measuring effects of chemicals on: terrestrial ecosystem properties, aquatic ecosystem properties, terrestrial population interactions, and aquatic population interactions.