The plant availability of auto-cast platinum group elements.
Environ Geochem Health
; 30(2): 135-9, 2008 Apr.
Article
en En
| MEDLINE
| ID: mdl-18231867
ABSTRACT
The introduction of automobile catalysts has raised environmental concern, as this pollution control technology is also an emission source for platinum group elements (PGE). The main aim of this study was to assess soil and grass PGE concentrations in soils adjacent to five road networks. The soil and grass samples were collected from four distances at each site; they were 0, 1, 2 and 5 m from the road edges. The maximum soil Pt, Rh and Pd concentrations were measured at the road perimeters. Pd concentrations were much higher than Pt or Rh, possibly due to differences in its use, emission and/or soil chemistry. Rh and Pt soil concentrations accounted for 66 and 34% (P < 0.01) of the variability observed, respectively, in their plant concentrations. Grass Pd concentrations had no relationship with its total soil concentrations.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Paladio
/
Platino (Metal)
/
Rodio
/
Contaminantes del Suelo
/
Dactylis
País/Región como asunto:
Europa
Idioma:
En
Revista:
Environ Geochem Health
Asunto de la revista:
QUIMICA
/
SAUDE AMBIENTAL
Año:
2008
Tipo del documento:
Article
País de afiliación:
Reino Unido