The accumulation of arsenic, bromine and iodine in needles of Norway Spruce (Picea Abies [L.] karst.) At sites with low pollution

Wyttenbach, A.; Bajo, S.; Furrer, V.; Langenauer, M.; Tobler, L.

The accumulation of arsenic, bromine and iodine in needles of Norway Spruce (Picea Abies [L.] karst.) At sites with low pollution

1997

Wyttenbach, A. | Bajo, S. | Furrer, V. | Langenauer, M. | Tobler, L.

The concentrations of As, Br and I were measured in needles, in the material deposited on the needle surface and in the soil. Results from 8 unpolluted and one polluted continental sites and from one maritime site are reported. The mass of al13 elements on the needle surface is similar to that in the needles. Needle concentrations increase linearly with the needle age class, but net accumulation during the first year is larger than during later years. There are significant correlations between the material on the needle surface and the needle concentrations for As and Br, but not between the soil and the needle concentrations. Bromine values are much higher at the polluted and at the maritime site than at the unpolluted sites.

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