Dry and wet deposition of mercury near a chlor-alkali plant

The dry and wet deposition near a Finnish chlor-alkali plant was estimated by using the moss-bag technique. The estimated net deposition was 130 ng g−1 per month or 480 μg m−2 per year. Two-thirds of the deposition was dry and one-third wet. The results emphasize the importance of the direct uptake of atmospheric mercury by vegetation.