Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1016/j.chemosphere.2016.08.082
Titel (primär) Mass transfer of hydrophobic organic chemicals between silicone sheets and through plant leaves and low-density polyethylene
Autor Ahmadi, H.; Bolinius, D.J.; Jahnke, A. ORCID logo ; MacLeod, M.
Quelle Chemosphere
Erscheinungsjahr 2016
Department ZELLTOX
Band/Volume 164
Seite von 683
Seite bis 690
Sprache englisch
Keywords Passive dosing; PDMS; Mass transfer coefficients; Leaves; LDPE
UFZ Querschnittsthemen RU3;
Abstract Plant leaves play an important role in the fate of hydrophobic organic contaminants (HOCs) in the environment. Yet much remains unknown about the permeability of leaves by HOCs. In this pilot study we measured (i) the kinetics of mass transfer of three polycyclic aromatic hydrocarbons (PAHs) and six polychlorinated biphenyls between a spiked and an unspiked sheet of polydimethylsiloxane (PDMS) in direct contact with each other for 24 h and (ii) kinetics of mass transfer of two PAHs through leaves and low-density polyethylene (LDPE) in a passive dosing experiment by inserting these matrices between the two sheets of PDMS for 48 h. The kinetics of mass transfer of fluoranthene between PDMS sheets in direct contact were a factor of 12 slower than those reported in the literature. The kinetics of mass transfer of fluorene and phenanthrene through leaves were within the range of those previously reported for 2,4-dichlorophenoxyacetic acid through isolated cuticles. Our results provide a proof-of-concept demonstration that the passive dosing method applied in this study can be used to measure the mass transfer coefficients of organic chemicals through leaves. Key recommendations for future experiments are to load the PDMS at the highest feasible concentrations to avoid working at analyte levels close to the limit of detection, to keep the leaves moist and to minimize potential pathways for contamination of the PDMS sheets by exposure to laboratory air.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=18027
Ahmadi, H., Bolinius, D.J., Jahnke, A., MacLeod, M. (2016):
Mass transfer of hydrophobic organic chemicals between silicone sheets and through plant leaves and low-density polyethylene
Chemosphere 164 , 683 - 690 10.1016/j.chemosphere.2016.08.082