Marine sediment and interstitial water: Effects on bioavailability of cadmium to gills of the clam Protothaca staminea
A study was made to determine first, the kinetics of cadmium sorption on a natural marine sediment and second, the degree to which this sorption as well as interstitial water might effect bioavailability of cadmium to gills of the clam Protothaca staminea. Surface sediment from Sequim Bay, Washington was labelled with Cd 109 and total cadmium concentration determined by radioassay. Gills were added to three types of exposures: 1) control (0.45 um filtered seawater, 2) sediment interstitial water and 3) washed sediment. Prepared samples of gills were counted in a liquid scintillation counter. Results show that addition of a small quantity of washed sediment to the exposure system reduced cadmium accumulation by gills to only 17% of the control. Interstitial water had no significant effect. 1 table, 3 figures (JMT)
- Research Organization:
- Marine Research Lab., Sequim, WA
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 5761069
- Journal Information:
- Bull. Environ. Contam. Toxicol.; (United States), Vol. 27:6
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
CADMIUM
BIOLOGICAL ACCUMULATION
BIOLOGICAL AVAILABILITY
BIOLOGICAL EFFECTS
BIOLOGICAL MODELS
CADMIUM 109
INTERSTITIAL WATER
MOLLUSCS
SEAWATER
SEDIMENTS
SORPTION
TRACER TECHNIQUES
UPTAKE
ANIMALS
AQUATIC ORGANISMS
BETA DECAY RADIOISOTOPES
CADMIUM ISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTS
EVEN-ODD NUCLEI
GROUND WATER
HYDROGEN COMPOUNDS
INTERMEDIATE MASS NUCLEI
INVERTEBRATES
ISOTOPE APPLICATIONS
ISOTOPES
METALS
NUCLEI
OXYGEN COMPOUNDS
RADIOISOTOPES
WATER
YEARS LIVING RADIOISOTOPES
560304* - Chemicals Metabolism & Toxicology- Invertebrates- (-1987)
520200 - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)