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

Autor:	Harald Puchelt, Jörg Schäfer
Rok vydání:	1998
Předmět:	chemistry.chemical_element Platinum group law.invention Rhodium Catalysis Prevailing winds chemistry Geochemistry and Petrology law Environmental chemistry Catalytic converter Environmental science Economic Geology Platinum Sludge Palladium
Zdroj:	Journal of Geochemical Exploration. 64:307-314
ISSN:	0375-6742
Popis:	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, Rh 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::17401694c4d85efc33c0ddaaea466a4f https://doi.org/10.1016/s0375-6742(98)00040-5 Zobrazit plný text záznamu Full Text from ScienceDirect