Kinetics of polychlorinated biphenyl partitioning to marine Chrysophyte Isochrysis galbana
Science of The Total Environment, ISSN: 0048-9697, Vol: 416, Page: 410-417
2012
- 11Citations
- 4Usage
- 12Captures
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Metrics Details
- Citations11
- Citation Indexes11
- 11
- CrossRef8
- Usage4
- Abstract Views4
- Captures12
- Readers12
- 12
Article Description
This study focused on the uptake kinetics of polychlorinated biphenyl (PCB) congeners by the Chrysophyte, Isochrysis galbana. A gas-purging experimental system was used to maintain constant dissolved PCB concentrations. Three phases of absorption were observed: first, a rapid absorption phase within the first 15 min, second, a first order process reaching the maximum concentration within 48 h of exposure, and third, a plateau phase as yet to be determined with very slight increases in concentration. In this study, the percentage of the maximum concentration reached within the first phase varied from 10% to 67%, depending on the size of the PCB (as determined by molecular weight and total surface area), whereas the uptake rate (k u ) during the second phase was more comparable across different PCBs. In addition, for the first phase, the bioconcentration factor (BCF) of PCBs deviated from its expected relationship with hydrophobicity, as determined by K ow, and was instead related to the molecular structure of the compound.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0048969711013568; http://dx.doi.org/10.1016/j.scitotenv.2011.11.042; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84856210426&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/22197112; https://linkinghub.elsevier.com/retrieve/pii/S0048969711013568; https://digitalcommons.tacoma.uw.edu/ias_pub/46; https://digitalcommons.tacoma.uw.edu/cgi/viewcontent.cgi?article=1045&context=ias_pub; https://dx.doi.org/10.1016/j.scitotenv.2011.11.042; http://linkinghub.elsevier.com/retrieve/pii/S0048969711013568
Elsevier BV
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