Abstract
Norway spruce needles from 4 different stations and of different age classes have been washed free from the adhering wax and the insoluble aerosols. Bromine and iodine contents were determined separately in the needles, in the wax and in the insoluble aerosols from the needles' surface by neutron activation analysis. The distribution of Br and I in these 3 fractions shows that a large portion of these elements can be found on the needle surface. The predominant amount of these elments in the external material is present in the wax. Bromine and iodine loadings on the spruce needles depend on the ambient concentrations at the stations and increase slightly with needle age. The correlation between the aerosol loadings suggests a common source for these elements. The correlation between Br and I in the needles show an identical biodynamic behaviour, most probably an uptake by the needle surface.
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Tobler, L., Bajo, S., Wyttenbach, A. et al. Bromine and iodine in the system “aerosol-plant”. Fresenius J Anal Chem 350, 85–88 (1994). https://doi.org/10.1007/BF00326258
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DOI: https://doi.org/10.1007/BF00326258