Steady-state model of biota sediment accumulation factor for metals in two marine bivalves
Journal Article
·
· Environmental Toxicology and Chemistry
- Manhattan Coll., Riverdale, NY (United States). Dept. of Environmental Engineering
- Havens and Emerson, Saddle Brook, NJ (United States)
A model of the biota sediment accumulation factor (BSAF) is developed to relate the ratio of metal concentrations in two marine bivalves (Crassostrea virginica and Mytilus edulis) to sediment metal concentration. A generalized metal BSAF can be approximated by a simple relationship that is a function of sediment to water column partitioning, the bioconcentration factor (BCF), the depuration rate, the metal assimilation efficiency from food, the bivalve feeding rate, and the growth rate. Analyses of Mussel Watch data indicate that the medium BSAF across stations varies by about three orders of magnitude from Zn, Cd, and Cu at the highest levels of BSAF = 1 to 10, while Cr has the lowest BSAF at 0.01. Total Hg is about 1.0 and Ni and Pb are approximately 0.1. Calibration of the model indicates that the food route of metal accumulation is significant for all metals but specially for Zn, Cd, Cu, and Hg where virtually all of the observed BSAF is calculated to be due to ingestion of metal from food in the overlying water. These results indicate a potential significance of the metal-binding protein metallothionein, which results in relatively high binding of metal and resulting low depuration rates.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 136756
- Journal Information:
- Environmental Toxicology and Chemistry, Journal Name: Environmental Toxicology and Chemistry Journal Issue: 11 Vol. 14; ISSN 0730-7268; ISSN ETOCDK
- Country of Publication:
- United States
- Language:
- English
Similar Records
Bivalve fouling of nuclear power plant service-water systems. Volume 1. Correlation of bivalve biological characteristics and raw-water system design
US Mussel Watch Program: Transuranic element data from Woods Hole Oceanographic Institution 1976-1983. Technical report
Deployed bivalves (oysters and clams) as indicators of estuarine condition
Technical Report
·
Fri Nov 30 23:00:00 EST 1984
·
OSTI ID:6247674
US Mussel Watch Program: Transuranic element data from Woods Hole Oceanographic Institution 1976-1983. Technical report
Technical Report
·
Tue May 01 00:00:00 EDT 1984
·
OSTI ID:6602671
Deployed bivalves (oysters and clams) as indicators of estuarine condition
Conference
·
Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:197533