Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Fecal Indicator Bacteria Persistence Under Natural Conditions in an Ice-Covered River.
Author Davenport, Charlotte V. ; Sparrow, Elena B. ; Gordon, Ronald C. ;
CORP Author Corvallis Environmental Research Lab., College, AK. Arctic Environmental Research Station.
Year Published 1976
Report Number EPA/600/J-76/082;
Stock Number PB-287 601
Additional Subjects Bacteria ; Tanana River ; Enterobacteriaceae ; Feces ; Coliform bacteria ; Indicator species ; Survival ; Streptococcus ; Tables(Data) ; Rivers ; Alaska ; Low temperature research ; Winter ; Fluid filters ; Membranes ; Chena River ; Hydrology ; Sampling ; Bioindicators ; Fairbanks(Alaska) ; Reprints
Library Call Number Additional Info Location Last
NTIS  PB-287 601 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 12p
Total coliform (TC), fecal coliform (FC), and fecal streptococcus (FS) survival characteristics, under natural conditions at 0C in an ice-covered river, were examined during February and March 1975. The membrane filter (MF) technique was used throughout the study, and the multiple-tube (MPN) method was used in parallel on three preselected days for comparative recovery of these bacteria. Survival was studied at seven sample stations downstream from all domestic pollution sources in a 317-km reach of the river having 7.1 days mean flow time (range of 6.0 to 9.1 days). The mean indicator bacteria densities decreased continuously at successive stations in this reach and, after adjustment for dilution, the most rapid die-off was found to occur during the first 1.9 days, followed by a slower decrease. After 7.1 days, the relative survival was TC