Information Services banner Edinburgh Research Archive The University of Edinburgh crest

Edinburgh Research Archive >
Chemistry, School of >
Chemistry publications >

Please use this identifier to cite or link to this item: http://hdl.handle.net/1842/1428

This item has been viewed 1 times in the last year. View Statistics

Files in This Item:

File Description SizeFormat
AtmosEnv37(2003)4447.pdf161.07 kBAdobe PDFView/Open
Title: The routes and kinetics of trichloroacetic acid uptake and elimination in Sitka spruce (Picea sitchensis) saplings via atmospheric deposition pathways
Authors: Heal, Mathew R
Dickey, Catherine A
Cape, Neil
Heal, Kate V
Issue Date: 2003
Citation: Heal, M. R., Dickey, C. A., Cape, J. N. and Heal, K. V. (2003) The routes and kinetics of trichloroacetic acid uptake and elimination in Sitka spruce (Picea sitchensis) saplings via atmospheric deposition pathways, Atmospheric Environment 37, 4447-4452
Publisher: Elsevier
Abstract: A major flux of trichloroacetic acid (TCA) to forests is via wet deposition, but the transfer of TCA into tree foliage may occur by an above- or below-ground pathway. To investigate the routes and kinetics of TCA uptake, two groups of 10 Sitka spruce saplings (with an equivalent number of controls) were exposed to a single application of 200 μg TCA in solution, either to the soil only, or sprayed as a mist to the foliage only. The needle foliage was subsequently analysed regularly for TCA for 3 months during the growing season. Significant uptake into current year (C) needles was observed from both routes just a few days after application, providing direct evidence of an above-ground uptake route. Uptake of TCA was also observed in the previous year needle class (C+1). Kinetic modelling of the data indicated that the half-life for within-needle elimination (during the growing season) was 50±30 days. Most of the applied TCA appeared to be degraded before uptake, either in the soil, or externally on the sapling foliage.
URI: doi:10.1016/S1352-2310(03)00532-6
http://hdl.handle.net/1842/1428
Appears in Collections:Chemistry publications

Items in ERA are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! Unless explicitly stated otherwise, all material is copyright © The University of Edinburgh 2013, and/or the original authors. Privacy and Cookies Policy