Record Display for the EPA National Library Catalog


Main Title Ecologic Impact of the Interactions Among Microorganisms and Aquatic Contaminents in Lake Erie, Phase I and Phase II.
Author Pfiste, Robert M. ; Duga, Patrick R. ; Fre, James I. ; Randle, Chester I. ;
CORP Author Ohio State Univ., Columbus. Water Resources Center.
Year Published 1971
Report Number W119 ;373X; DI-14-01-0001-1537 ;DI-14-31-0001-3114; OWRR-B-013-OHIO ;OWRR-B-018-Ohio; 06136,; B-013-OHIO(4)
Stock Number PB-207 758
Additional Subjects ( Limnology ; Pesticides) ; ( Water pollution ; Pesticides) ; ( Suspended sediments ; Limnology) ; ( Chlorine organic compounds ; Limnology) ; Great Lakes ; Adsorption ; Centrifuging ; Gas chromatography ; Thin layer chromatography ; Primary biological productivity ; Microorganisms ; Phytoplankton ; Clay minerals ; Dieldrin ; Endrin ; DDT ; Particle size ; Bacteria ; Fresh water biology ; Ecology ; Lake Erie ; Eutrophication
Library Call Number Additional Info Location Last
NTIS  PB-207 758 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 99p
Microparticulates suspended in Lake Erie were harvested and separated using gradient centrifugation. Fractions examined using a gas chromatograph and thin-layer chromatography demonstrated a variety of chlorinated hydrocarbon pesticides in association with each one. In water where the level of pesticides may be difficult to detect this technique may be of significance. Floc forming bacteria isolated from the lake will adsorb and concentrate the pesticide aldrin from such colloidal suspensions. This may be important in formation of contemporary sediments with respect to the microenvironment in the sediment. The microparticulates influence biological reactions and their effect on several microbial systems has been documented. The size, density and distribution of colloidal microparticulates in Lake Erie vary somewhat. There was evidence to suggest that different pesticides may be associated with different fractions based upon size density relationships. (Author)