Record Display for the EPA National Library Catalog

RECORD NUMBER: 12 OF 13

OLS Field Name OLS Field Data
Main Title Use of a Simple Experimental Device to Study Water Pollution in Situ: Comparative Effects of Three Anti-Petroleum Emulsive Agents (Utilisation d'un Dispositif Experimental Simple pour L'Etude de la Pollution des Eaux in Situ: Effets Compares de Trois Agents Emulsionnants Anti-Petrole).
Author Lacaze., J. C. ;
CORP Author Environmental Protection Agency, Research Triangle Park, N.C. Translation Services Section.
Year Published 1974
Report Number EPA-TR-87-75;
Stock Number PB-237 784-T
Additional Subjects Marine biology ; Water pollution ; Emulsifying agents ; Oils ; Oysters ; Translations ; France ; Water pollution control ; Oil pollution
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-237 784-T Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 23p
Abstract
By establishing in situ experimental ecosystems, it was possible to conduct pollution research under actual conditions. The experiments were carried out in an oyster culture basin of a lagoon in the Sables d'Olonne region by using devices to section off the water into a number of similar natural environmental compartments to be used for pollutant treatments and controls. The product Corexit produced only weak and temporary changes. Sefoil acted as a fertilizer, provoking a rapid increase in photosynthesis and chlorophyll a concentration; this was followed by considerable growth in the zooplankton, particularly the copepods, which resulted in the disappearance of the phytoplankton by the end of the experiment. The surface-active fraction of the third product used, Gamosol, caused an almost complete inhibition of photosynthesis during the entire 15 days of the experiment.