Di Guardo, Antonio and Nizzetto, Luca and Infantino, Alfonso and Colombo, Ilaria and Saporiti, Elena and Jones, Kevin C. (2008) Field derived accumulation and release kinetics of DDTs in plants. Chemosphere, 72 (10). pp. 1497-1503. ISSN 0045-6535Full text not available from this repository.
Vegetation plays an important role in influencing the air/surface exchange of semivolatile organic compounds (SOCs). In order to predict the capability of different plant species to capture chemicals from the air, plant–air partition coefficients and kinetic accumulation parameters must be defined. In this study, potted plants of three different species were transferred to the vicinity of a source point for DDT, namely a contaminated area around a former production plant in Italy. Leaves were constantly sampled in order to follow the uptake from air over time. Later, the potted plants were transported to a location characterized by background diffuse air concentrations for the release phase. Coupling the experimental results with a two-compartment accumulation model it was possible to derive the kinetics parameters and the plant–air partition coefficient KPA for p,p′-DDT. The log KPA (on a mass/volume basis) ranged between 1.7 and 2.2 for the different species. The uncertainties related to the different phenomena involved in a field uptake/release experiment are discussed.
|Journal or Publication Title:||Chemosphere|
|Uncontrolled Keywords:||Persistent organic pollutants ; Mass transfer coefficient ; Bioaccumulation factor ; Vegetation ; Oak ; Cherry laurel ; Azalea|
|Subjects:||G Geography. Anthropology. Recreation > GE Environmental Sciences|
|Departments:||Faculty of Science and Technology > Lancaster Environment Centre|
|Deposited By:||Mr Richard Ingham|
|Deposited On:||12 Nov 2009 14:24|
|Last Modified:||26 Jul 2012 16:45|
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