First report on the uptake of automobile catalyst emitted palladium by European eels (Anguilla anguilla) following experimental exposure to road dust
| Autor: | Jürgen Messerschmidt, F. Alt, Bernd Sures, Sonja Zimmermann, A. von Bohlen |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Health
Toxicology and Mutagenesis Biological Availability chemistry.chemical_element Mineralogy Kidney Toxicology Catalysis Rhodium Anguillidae Animals Vehicle Emissions Pollutant Air Pollutants biology Chemistry Aquatic animal Environmental Exposure General Medicine Environmental exposure Anguilla biology.organism_classification Pollution Mercury (element) Bioavailability Liver Environmental chemistry Biologie Palladium |
| Zdroj: | Environmental Pollution. 113:341-345 |
| ISSN: | 0269-7491 |
| DOI: | 10.1016/s0269-7491(00)00185-8 |
| Popis: | Following the introduction of automobile catalysts in the middle of the 1980s in Germany there is an increasing emission of the platinum-group-metals platinum, palladium (Pd) and rhodium. Still, it remains unclear if these metals are bioavailable for aquatic animals and to which extent they become accumulated by the aquatic biosphere. Because of analytical problems in detecting Pd in small biological samples the present investigation concentrates on the bioavailability of this metal. To answer the question of a Pd uptake by aquatic organisms experimental studies were conducted with European eels maintained in water containing road dust at a concentration of 10 kg/100 l. Following an exposure period of four weeks, samples of liver and kidney were analysed by total-reflection X-ray fluorescence analysis after co-precipitation of Pd with mercury. These experiments revealed an uptake of traffic related Pd by European eels which showed a mean liver Pd concentration of 0.18 +/- 0.05 ng/g (wet wt.), whereas the Pd concentration in the kidney ranged below the detection limit. Thus, in this study we can demonstrate for the first time that automobile catalyst emitted Pd is bioavailable for aquatic animals. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect