Bioconcentration of chlorinated hydrocarbons from sediment by oligochaetes
Previously published data on the accumulation of 15 chlorinated hydrocarbons from sediment by oligochaetes have been interpreted on the basis of bioconcentration from interstitial water. Calculation of the interstitial water concentration allowed determination of uptake and clearance rate constants together with bioconcentration factors (KB) for these compounds. These three factors each exhibited a systematic relationship to the octanol/water partition coefficient (KOW). The log KB versus log KOW relationship was roughly linear over the log KOW range from 4.4 to 6.4 and displayed an increasing nonlinear deviation for log KOW values greater than 6.4. These relationships are qualitatively similar to those established for other aquatic organisms where bioconcentration from water was the mechanism involved. This suggests that interstitial water may be the phase from which lipophilic compounds in sediment are bioconcentrated by oligochaetes. An expression relating the bioconcentration factor to the biotic concentration and various sediment characteristics has also been developed.
- Research Organization:
- Griffith Univ., Nathan, Queensland (Australia)
- OSTI ID:
- 6327885
- Journal Information:
- Ecotoxicol. Environ. Saf.; (United States), Vol. 16:3
- Country of Publication:
- United States
- Language:
- English
Similar Records
Biouptake of chlorinated hydrocarbons from laboratory-spiked and field sediments by oligochaete worms
Bioconcentration of lipophilic compounds by some aquatic organisms
Related Subjects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANNELIDS
SENSITIVITY
CHLORINATED AROMATIC HYDROCARBONS
BIOLOGICAL ACCUMULATION
INTERSTITIAL WATER
MATHEMATICAL MODELS
METABOLISM
SEDIMENTS
WATER POLLUTION
ANIMALS
AROMATICS
GROUND WATER
HALOGENATED AROMATIC HYDROCARBONS
HYDROGEN COMPOUNDS
INVERTEBRATES
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
POLLUTION
WATER
520200* - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)
560300 - Chemicals Metabolism & Toxicology