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Standard [CURRENT]
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This European Standard applies to the determination of the impact of ground-level ozone on a bioindicator plant species (tobacco Nicotiana tabacum cultivars Bel-W3, Bel-B and Bel-C) in a given environment. The present document specifies the procedure for setting-up and use of a system designed to expose these plants to ambient air. It also describes the procedure for leaf injury assessment. The results of standardized tobacco exposure indicate ozone-induced damage to exposed bioindicators and thus allow determination of the spatial and temporal distribution of the effect of ozone on plants.