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Controlled environment fumigation chambers for the study of reactive air pollutant effects on plants.

Stokes, N. J. and Lucas, P. W. and Hewitt, CN (1993) Controlled environment fumigation chambers for the study of reactive air pollutant effects on plants. Atmospheric Environment. Part A. General Topics, 27 (5). pp. 679-684.

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Abstract

The design and construction of eight 1-m3 fumigation chambers for exposing plants to reactive air pollutants at low concentrations are reported. Teflon surfaces are used where possible to minimize the adsorption, absorption, desorption and chemical reaction of the pollutants. A purified ambient air supply, to which metered quantities of gaseous pollutants are added, is used to give two air changes per minute at constant, low, pollutant concentrations. Comparative analysis of the chambers indicates that conditions may be maintained with a significant degree of precision, i.e. temperature ±0.3°C, RH ±6%, light intensity ±5 μmol m−2 s−1. Boundary layer analysis from models of cherry tree (Prunus avium) leaves indicate that the minimum conductance value within these chambers is 2 cm s−1.

Item Type: Article
Journal or Publication Title: Atmospheric Environment. Part A. General Topics
Uncontrolled Keywords: Fumigation chambers ; reactive hydrocarbons ; ozone ; plant effects
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 22694
Deposited By: ep_ss_importer
Deposited On: 15 Jan 2009 15:02
Refereed?: No
Published?: Published
Last Modified: 26 Jul 2012 16:04
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/22694

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