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Use of microcosms versus conventional biodegradation testing for estimating chemical persistence DB. Carson, VW. Saeger, WE. Gledhill

ASTM Symposia Papers Available online

ASTM Symposia Papers
Format:
Author/Creator:
Contributor:
Language:
English
Subjects (All):
Physical Description:
1 online resource (12 pages) illustrations, figures, tables
Place of Publication:
West Conshohocken, Pa. ASTM International 1990
Summary:
Extrapolation of laboratory biodegradation data to the field is critical in assessing the environmental fate of a chemical. Laboratory systems used to evaluate biodegradation may vary from simple river or lake die-away tests to complex microcosms. The relative merits of rate data derived from systems of widely varying complexity have long been a subject of discussion. Data obtained from studies utilizing simple screening tests and microcosms containing sediment and natural water are presented and compared. Among the chemicals tested are biphenyl, linear alkylbenzene sulfonates, and phthalate and phosphate esters. Results suggest that pertinent biodegradation rate data can be obtained from relatively uncomplex test systems. Potential concerns about the environmental fate of test chemicals raised in simpler biodegradation tests could be addressed by specific environmental monitoring for existing chemicals rather than testing in more complex systems
Notes:
  • Includes bibliographical references
  • Online resource; title from publisher's website, viewed February 19, 2016
Related Work:
American Society for Testing and Materials. Selected Technical Papers

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