| Title: | Modelling bioaccumulation of semi-volatile organic compounds (SOCs) from air in plants based on allometric principles |
| Author(s): | Steyaert NL; Hauck M; Van Hulle SW; Hendriks AJ; |
| Address: | "Department of Environmental Science, Institute for Wetland and Water Research, Radboud University Nijmegen, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands" |
| DOI: | 10.1016/j.chemosphere.2009.08.032 |
| ISSN/ISBN: | 1879-1298 (Electronic) 0045-6535 (Linking) |
| Abstract: | "A model was developed for gaseous plant-air exchange of semi-volatile organic compounds. Based on previous soil-plant modelling, uptake and elimination kinetics were scaled as a function of plant mass and octanol-air partition ratios. Exchange of chemicals was assumed to be limited by resistances encountered during diffusion through a laminar boundary layer of air and permeation through the cuticle of the leaf. The uptake rate constant increased and the elimination rate constant decreased with the octanol-air partition ratio both apparently levelling off at high values. Differences in kinetics between species could be explained by their masses. Validation on independent data showed that bio-concentration factors of PCBs, chlorobenzenes and other chemicals were predicted well by the model. For pesticides, polycyclic aromatic hydrocarbons and dioxins deviations occurred" |
| Keywords: | "Air Pollutants/*chemistry Environmental Monitoring Gases/chemistry Kinetics Models, Biological Models, Chemical Octanols/chemistry Plant Leaves/chemistry Plants/*chemistry Volatile Organic Compounds/*chemistry;" |
| Notes: | "MedlineSteyaert, Nils L L Hauck, Mara Van Hulle, Stijn W H Hendriks, A Jan eng England 2009/09/22 Chemosphere. 2009 Oct; 77(6):727-32. doi: 10.1016/j.chemosphere.2009.08.032. Epub 2009 Sep 18" |
