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. 1998;5(4):223-30.
doi: 10.1007/BF02986405.

Sources of anthropogenic platinum-group elements (PGE): Automotive catalysts versus PGE-processing industries

F Zereini  1 , F Dirksen, B Skerstupp, H Urban
Affiliations

Sources of anthropogenic platinum-group elements (PGE): Automotive catalysts versus PGE-processing industries

F Zereini et al. Environ Sci Pollut Res Int. 1998.

Abstract

Soil samples from the area of Hanau (Hessen, Germany) were analyzed for anthropogenic platinum-group elements (PGE). The results confirm the existence of two different sources for anthropogenic PGE: 1. automotive catalysts, and 2. PGE-processing plants. Both sources emit qualitatively and quantitatively different PGE spectra and PGE interelemental ratios (especially the Pt/Rh ratio). Elevated PGE values which are due to automotive catalysts are restricted to a narrow-range along roadside soil, whereas those due to PGE-processing plants display a large-area dispersion. The emitted PGE-containing particles in the case of automotive catalysts are subject to transport by wind and water, whereas those from PGE-processing plants are preferably transported by wind. This points to a different aerodynamic particle size. Pt, Pd, and Rh concentrations along motorways are dependent on the amount of traffic and the driving characteristics.

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