Calculation of bioconcentration factors of persistent hydrophobic compounds in the air/vegetation system

Muller, Jochen F., Hawker, Darryl W. and Connell, Des W. (1994) Calculation of bioconcentration factors of persistent hydrophobic compounds in the air/vegetation system. Chemosphere, 29 4: 623-640. doi:10.1016/0045-6535(94)90035-3


Author Muller, Jochen F.
Hawker, Darryl W.
Connell, Des W.
Title Calculation of bioconcentration factors of persistent hydrophobic compounds in the air/vegetation system
Journal name Chemosphere   Check publisher's open access policy
ISSN 0045-6535
1879-1298
Publication date 1994-08
Sub-type Article (original research)
DOI 10.1016/0045-6535(94)90035-3
Volume 29
Issue 4
Start page 623
End page 640
Total pages 18
Place of publication Oxford, United Kingdom
Publisher Pergamon
Language eng
Formatted abstract
A multi-compartment model based on equilibrium partitioning has been developed for predicting leaf/atmosphere partition coefficients (theoretical KBA) of persistent hydrophobic organic compounds. The leaf was considered to consist of five major phases i.e. cuticular lipids, cellular lipids, protein, structural carbohydrate and water, with chemicals partitioned between these compartments and the vapour phase in the ambient atmosphere. The input data required for the model were the 1-octanol/water partition coefficient (KOW) and Henry's Law constant (H) of the compound, together with the volume fractions of the individual phases in the leaf. The model was evaluated using laboratory-based experimentally determined partition coefficients (experimental KBA) for a group of organic chemicals, mostly chlorohydrocarbons. The model was in relatively good agreement with the experimental values, and can take into account differences in leaf composition. Values for different plants can be successfully calculated since the results indicate that plant composition is the major influence on the partition coefficient of a compound.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: National Research Centre for Environmental Toxicology Publications
 
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Created: Wed, 09 Feb 2011, 11:00:48 EST