Record Display for the EPA National Library Catalog

RECORD NUMBER: 185 OF 872

OLS Field Name OLS Field Data
Main Title Distribution of Trace Metals in Impoundments.
Author Ni, J. ;
CORP Author Arkansas Univ., Fayetteville. Water Resources Research Center.
Year Published 1970
Report Number Pub-6; OWRR-B-002-ARK; 05971,; B-002-ARK(2)
Stock Number PB-198 089
Additional Subjects ( Reservoirs ; Water chemistry) ; ( Water pollution ; Metals) ; Dissolved gases ; Trace elements ; Sampling ; Hydrology ; Concentration(Composition) ; Iron ; Manganese ; Copper ; Cobalt ; Nickel ; Lead ; Chromium ; Zinc ; Temperature distribution ; Spectrochemical analysis ; Arkansas ; Ouachita River ; Atomic absorption spectroscopy ; Water pollution detection
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-198 089 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 240p
Abstract
An investigation of the trace element content of two impoundments on the Ouachita River, Arkansas, was conducted. Common water quality parameters were followed in the reservoirs in an effort to determine the factors which were influencing the trace element concentration. The following trace metals were determined in both the particulate phase (retained by a 0.45 micron filter) and the soluble phase (passed by a 0.45 micron filter): iron, manganese, copper, cobalt, nickel, lead, chromium, and zinc. These measurements were made periodically for one and a half years. Results indicate that the chemical regime of the impoundments which were studied was greatly influenced by the cool water releases from an upstream impoundment. A cold density current throughout the entire main stem of the reservoir furnished dissolved oxygen to the lower portion of the impoundments and prevented the accumulation of large quantities of iron and manganese. Data suggest that outside of hypolimnic zones in the reservoir, soluble iron is present in small quantities, usually less than 10 ppb. (Author)