A road-dust test material was collected from the ceiling of the Tanzenberg Tunnel (Styria/ustria), located 50 km north of the city of Graz (Austria). The sampling was carried out in the ventilation shaft of the tunnel, where the material was collected with small brooms and a vacuum cleaner from the walls of the shaft. About 50 kg of dust material was collected. keywords: environmental material , particulate material , trace elements , heavy metals, Platinium group elements (PGEs)
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