Main Title |
Cadmium Bioaccumulation Assays. Their Relationship to Various Ionic Equilibria in Lake Superior Water. |
Author |
Poldoski, John E. ;
|
CORP Author |
Environmental Research Lab.-Duluth, MN. |
Year Published |
1979 |
Report Number |
EPA/600/J-79/042; |
Stock Number |
PB80-124498 |
Additional Subjects |
Lake Superior ;
Cadmium ;
Chemical analysis ;
Water pollution ;
Concentration(Composition) ;
Residues ;
Metals ;
Exposure ;
Atomic Spectroscopy ;
Chemical equilibrium ;
Lake Superior ;
Ions ;
Reprints ;
Water pollution detection ;
Bioaccumulation ;
Daphnia magna ;
Heavy metals ;
Atomic absorption spectroscopy ;
Numerical solution
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB80-124498 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
8p |
Abstract |
The potential use of bioaccumulation by Daphnia magna as an analytical tool in studying properties of various aqueous cadmium forms is described. Selected aquatic chemical factors affecting cadmium residues were determined for organisms exposed to cadmium in the absence and presence of various organic and inorganic chemicals, some capable of strongly complexing cadmium. Without any added complexing agents, steady-state relationships were observed between total aqueous cadmium concentrations and bioaccumulated cadmium within 2-4 days of exposure. Residues were a nonlinear function of the concentration. The presence of humic acid, pyrophosphate, or aminopolycarboxylic acids, at sufficient concentrations to maximize complexation, was effective--to various degrees--in reducing cadmium uptake. However, cadmium in the presence of diethyldithiocarbamate bioaccumulated to a greater degree than in its absence. |
Supplementary Notes |
Pub. in Environmental Science and Technology, v13 n6 p701-706 1979. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Cadmium Bioaccumulation Assays. Their Relationship to Various Ionic Equilibria in Lake Superior Water. |
PUB Date Free Form |
30 Jan 79 |
Category Codes |
6T; 7D; 68D; 57Y; 99A |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/03 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
323772490 |
Origin |
NTIS |
Type |
CAT |