Platinum-Group-Metals (PGM) emitted from automobile catalytic converters and their distribution in roadside soils

被引：124

作者：

Schäfer, J ^{[1
]}

Puchelt, H ^{[1
]}

机构：

[1] Univ Karlsruhe, Inst Petrog & Geochem, D-76128 Karlsruhe, Germany

来源：

JOURNAL OF GEOCHEMICAL EXPLORATION | 1998年 / 64卷 / 1-3期

关键词：

catalytic converter; platinum; rhodium; palladium; Platinum-Group-Metals; PGM; soil; road-dust; sewage sludge;

D O I：

10.1016/S0375-6742(98)00040-5

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The use of catalytic converters yields emissions of Pt, Rh and Pd. Geochemical background values, recent environmental concentrations and distribution patterns of these noble metals are very poorly known. In this paper a typical distribution of Pt, Ph and Pd in roadside soil is compared to the distribution of Pb and Zn. The effect of a barrier on airborne transport of aerosols is demonstrated as well as the influence of prevailing wind direction. Urban road-dusts are more likely to be inhaled than soil particles, therefore PGM-concentrations and their dependency on traffic intensity in road-dusts and soil was investigated. The importance of traffic-related emission for PGM-contents in sewage sludge is estimated based on the characteristic Pt/Rh ratio. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：307 / 314

页数：8

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