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Main Title Design of terrecosm enclosures for use in ecorisk assessment evaluations /
Author Knapp, Charles M. ; Heske, E. ; Marble, V. ; Weeks, H. ; Eichler, W.
CORP Author Technical Resources, Inc., Davis, CA. ;New Mexico Univ., Albuquerque. ;California Univ., Davis. ;Oregon State Univ., Corvallis.;Corvallis Environmental Research Lab., OR.
Year Published 1991
Report Number EPA-68-CO-0021; EPA/600/3-91/038
Stock Number PB91-196014
Additional Subjects Pesticides ; Terrestrial ecosystems ; Risk assessment ; Voles ; Health hazards ; Exposure ; Terrecosm enclosures ; Non-target populations
Library Call Number Additional Info Location Last
NTIS  PB91-196014 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 36 pages : illustrations ; 28 cm
Abstract The project has been designed to provide large, outdoor enclosures (terrecosms) for use in evaluating the risk assessment methodology used by the US EPA. These enclosures have been designed to permit testing effects of insecticide applications on non-target populations (voles) existing in nearly natural conditions. The study is necessitated because recent evidence indicates that the existing method (the quotient method, which compares an organism's exposure level to the level of hazard observed at that exposure level) has failed to anticipate ecological damage resulting from insecticide applications. As a result, EPA's Office of Pesticides and Toxic Substances (OPTS) has requested assistance from EPA's Environmental Research Laboratory in Corvallis, OR (ERL-C) in field validating or improving the quotient method.
Notes Microfiche.
Contents Notes EPA/600/3-91/038.
Place Published 1991.
Supplementary Notes Prepared in cooperation with New Mexico Univ., Albuquerque, California Univ., Davis, and Oregon State Univ., Corvallis. Sponsored by Corvallis Environmental Research Lab., OR.
PUB Date Free Form 1991.
NTIS Prices PC A03/MF A01
BIB Level m
Cataloging Source OCLC/T
OCLC Time Stamp 20010117171230
Language eng
Origin NTIS
OCLC Rec Leader 00668nam 2200193Ka 45020