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Platinum uptake by the freshwater isopod Asellus aquaticus in urban rivers

Sebastien Rauch (Institutionen för vattenförsörjnings- och avloppsteknik) ; Greg Morrison (Institutionen för vattenförsörjnings- och avloppsteknik)
The Science of the Total Environment Vol. 235 (1999), p. 261-268.
[Artikel, refereegranskad vetenskaplig]

Platinum has been increasing in the environment as a result of emissions from catalytic converters. The platinum emitted is principally located in the vicinity of roads but might be transported to urban rivers through highway and urban run-off water. Platinum concentrations in the freshwater isopod Asellus aquaticus were measured for two urban rivers and a stormwater detention pond. Concentrations ranged from 0.04 to 12.4 ug g−1 for direct analysis and from 0.16 to 4.5 ug g−1 after depuration. Analyses of water, pore water and sediments indicate that platinum in urban rivers is mostly found in the sediments and these provide the major contribution of platinum to Asellus aquaticus. Exposure experiments showed the importance of platinum speciation for uptake.

Nyckelord: Platinum, Urban rivers, Bioaccumulation, Asellus aquaticus



Denna post skapades 2006-09-28. Senast ändrad 2010-11-11.
CPL Pubid: 2298

 

Institutioner (Chalmers)

Institutionen för vattenförsörjnings- och avloppsteknik (1955-2000)

Ämnesområden

Miljöteknik

Chalmers infrastruktur