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RECORD NUMBER: 18 OF 23

OLS Field Name OLS Field Data
Main Title Responses of Marine Unicellular Algae to Brominated Organic Compounds in Six Growth Media.
Author Walsh, G. E. ; Yoder, M. J. ; McLaughlin, L. L. ; Lores, E. M. ;
CORP Author Environmental Research Lab., Gulf Breeze, FL.
Year Published 1987
Report Number EPA/600/J-87/331;
Stock Number PB88-199393
Additional Subjects Marine microorganisms ; Algae ; Brominated organic compounds ; Organic compounds ; Herbicide ; Hazardous materials ; Cells(Biology) ; Reprints ; Tetrabromobisphenol A ; Decabromobiphenyloxide ; Hexabromocyclododecane ; Pentabromomethylbenzene ; Bromoxynil
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB88-199393 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 09/04/1988
Collation 10p
Abstract
Marine unicellular algae, Skeletonema costatum, Thalassiosira pseudonana, and Chlorella sp., were exposed to the industrial brominated compounds, tetrabromobisphenol A (TBBP), decabromobiphenyloxide (DBBO), hexabromocyclododecane (HBCD), pentabromomethylbenzene (PBMB), pentabromoethylbenzene (PBEB), and the herbicide, bromoxynil (BROM), in six algal growth media. Saturation concentrations of DBBO (1 mg/1), PBMB (1 mg/1), and PBEB (0.5 mg/1) reduced growth by less than 50%. EC50s of the other compounds varied with growth medium, with high EC50/low EC50 ratios between 1.3 and 9.9. Lowest EC50s, 9.3 to 12.0 pi g/1, were obtained with S. costatum and HBCD. It is concluded that responses to toxicants in different media are the results of interactions between algae, growth medium, toxicant, and solvent carrier.