| Title |
Bioaccumulation of Highly Hydrophobic Chemicals by Lumbriculus variegatus
|
|---|---|
| Published in |
Archives of Environmental Contamination and Toxicology, August 2018
|
| DOI | 10.1007/s00244-018-0554-6 |
| Pubmed ID | |
| Authors |
Lawrence P. Burkhard, Tylor Lahren, Terry L. Highland, James R. Hockett, David R. Mount, Teresa J. Norberg-King |
| Abstract |
Bioaccumulation of highly hydrophobic chemicals (log KOW > 8) from contaminated sediments by Lumbriculus variegatus has been studied for relatively few chemicals, and the measured and model predicted biota-sediment accumulation factors (BSAFs) can differ by orders of magnitude. In the current study, sediment bioaccumulation tests with L. variegatus were performed on sediments dosed with chemicals having a wide range of predicted n-octanol/water partition coefficients (KOW; 106-1018), including some higher than most highly hydrophobic chemicals studied to date. The highly hydrophobic chemicals had biphasic elimination kinetics with compartments A and B having fast and slow elimination kinetics, respectively, and for compartment B, elimination followed first-order kinetics. For compartment A with fast elimination kinetics, the mechanism and its kinetic-order could not be determined. Steady-state BSAFs (kg organic carbon/kg lipid) of 0.015, 0.024, and 0.022 were derived for tetradecachloro-p-terphenyl, tetradecachloro-m-terphenyl, and octadecachloro-p-quaterphenyl, respectively. The high uncertainty in predicted KOWs for highly hydrophobic chemicals limited the comparison and evaluation of predicted BSAFs from the Arnot-Gobas food web model and BSAFs measured in this study. The results of this study point to the need to perform dietary assimilation efficiency studies with highly hydrophobic compounds to resolve uncertainties surrounding the estimation of their KOW and the need to understand mechanism and models for the biphasic elimination kinetics. |
X Demographics
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 2 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 2 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 10 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 10 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 5 | 50% |
| Researcher | 4 | 40% |
| Student > Doctoral Student | 1 | 10% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 4 | 40% |
| Environmental Science | 2 | 20% |
| Pharmacology, Toxicology and Pharmaceutical Science | 1 | 10% |
| Physics and Astronomy | 1 | 10% |
| Earth and Planetary Sciences | 1 | 10% |
| Other | 1 | 10% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 29 August 2018.
All research outputs
#18,541,858
of 23,806,312 outputs
Outputs from Archives of Environmental Contamination and Toxicology
#1,565
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Outputs of similar age
#242,882
of 336,235 outputs
Outputs of similar age from Archives of Environmental Contamination and Toxicology
#15
of 30 outputs
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