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Main Title Effects, Uptake, and Metabolism of Methoxychlor, Mirex, and 2,4-D in Seaweeds.
Author Sikka, Harish C. ; Butler, Gary L. ; Rice., Clifford P. ;
CORP Author Syracuse Univ. Research Corp., N.Y. Life Sciences Div.;Environmental Research Lab., Gulf Breeze, Fla.
Year Published 1976
Report Number EPA-68-03-0271; EPA/600/3-76/048;
Stock Number PB-255 432
Additional Subjects DDT ; Insecticides ; Algae ; Toxicity ; Plant physiology ; Chlorine aliphatic compounds ; Chlorine organic compounds ; Metabolism ; Chlorine aromatic compounds ; Pesticides ; Herbicides ; Recommendations ; Tables(Data) ; Physiological effects ; Toxicology ; Cultures(Biology) ; Estuaries ; Phytoplankton ; Water pollution ; Aquatic plants ; Rhodymenia ; Mirex ; Methenocyclobuta (cd) pentalenes ; Seaweeds ; Ulva ; Water pollution effects(Plants) ; Acetic acid/2-4-dichlorophenoxy ; D 2-4 herbicide ; Enteromorpha ; Bioaccumulation ; Metabolites
Library Call Number Additional Info Location Last
NTIS  PB-255 432 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 49p
Abstract The report presents the results of a study concerning effects, uptake, and metabolism of mirex, methoxychlor, and 2,4-D in the seaweeds Ulva sp., Enteromorpha sp., and Rhodymenia sp. None of the pesticides, at concentrations corresponding to their maximum solubility in seawater, had any significant effect on photosynthesis, protein, carbohydrate, lipid, chlorophyll, carotenoid or trace metal content of the algae. All three algae removed substantial amounts of mirex and methoxychlor from the medium, but uptake of 2,4-D was extremely low. The rate of uptake of methoxychlor was considerably greater than that of mirex. Enteromorpha accumulated considerably more mirex and methoxychlor than Ulva or Rhodymenia. Both Ulva and Enteromorpha failed to metabolize either mirex or 2,4-D. Enteromorpha metabolized methoxychlor to a limited extent. After 7 days of incubation with carbon-labelled methoxychlor, a major portion of the label in the tissue and medium was present in unchanged methoxychlor. A small amount of radioactive metabolite, 2,2-bis (p-methoxyphenyl)-1, 1-dichloroethylene, was detected in both the tissue and medium.
NTIS Title Notes Final rept. May 73-Oct 75.
PUB Date Free Form Jun 76
Category Codes 6T; 6F; 8A; 68E; 68D; 57Y; 57H; 47D
NTIS Prices PC A03/MF A01
Document Type NT
Cataloging Source NTIS/MT
Control Number 326622739
Origin NTIS
Type CAT