Record Display for the EPA National Library Catalog

RECORD NUMBER: 2 OF 8

OLS Field Name OLS Field Data
Main Title Factors Controlling Copper (II) Concentrations in the Keweenaw Waterway.
Author Ledd, David G. ;
CORP Author Michigan Technological Univ., Houghton. Dept. of Chemistry and Chemical Engineering.
Year Published 1973
Report Number DI-14-31-0001-3822; OWRR-A-065-MICH; 13010,; A-065-MICH(1)
Stock Number PB-222 463
Additional Subjects ( Water pollution ; Copper) ; ( Water chemistry ; Copper) ; Solubility ; Mathematical models ; Michigan ; Copper organic compounds ; Copper inorganic compounds ; Toxicology ; Fresh water fishes ; Tailings ; Keweenaw Waterway ; Water pollution effects(Animals) ; Mine wastes
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-222 463 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 115p
Abstract
The occurrence of copper (II) in the Keweenaw Waterway, Michigan from past use of the waterway as a dumping basin for copper-bearing mine tailings is a matter of concern because of the toxic effects of copper (II) on aquatic organisms. From 1972 to the present soluble copper as well as several other cations and anions were monitored at varying depths in water exposed to mine tailings. The study attempts to describe the most important factors involved in the water chemistry of copper in the waterway. A model proposed as a description of soluble copper concentration control predicts Cu(+2), CuCO3 (soluble), CuOH+, and Cu (organic) to be the principal copper species in solution. Cu (organic) is at times equal to 50 per cent of the total dissolved copper. (Modified author abstract)