Interactions of cadmium with periphyton in natural freshwaters

Name: Interactions of cadmium with periphyton in natural freshwaters
Brand: Sudwestdeutscher Verlag Fur Hochschulschriften AG
SKU: 9783838116181
Price: 24053 HUF
Availability: InStock

Szerző: Philippe Bradac

Nyelv:

Kötés: Puha kötésű

Kiadó: Sudwestdeutscher Verlag Fur Hochschulschriften AG

Elérhetőség: Beszállítói készleten

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Cadmium is a non-essential trace metal, with elevated concentrations in many aquatic systems. The bi...

Információk a könyvről

Szerző

Philippe Bradac

Nyelv

Angol

Kötés

Könyv - Puha kötésű

Kiadva

2010

oldal

136

EAN

9783838116181

ISBN

3838116186

Enbook ID

06890625

Kiadó

Sudwestdeutscher Verlag Fur Hochschulschriften AG

Súly

209

Méretek

152 x 229 x 9

Teljes leírás

Cadmium is a non-essential trace metal, with elevated concentrations in many aquatic systems. The bioavailability of Cd as well as of other non- essential and essential metals depends not only on their concentrations but is also strongly dependent upon chemical speciation. Periphyton is the predominant primary producer in surface waters and therefore of ecological importance. The goals of this work were to gain detailed insight into the kinetics of Cd accumulation by periphyton, and to investigate which Cd species control bioaccumulation in natural freshwaters. Experiments were carried out in artificial channels supplied with natural freshwater, with controlled Cd exposure concentrations and speciation. A field study was performed to investigate the relationships under natural conditions. The results show that periphyton sensitively responds to changes of environmentally relevant Cd concentrations in water and accumulates Cd at low ambient concentrations. Labile metal complexes with organic ligands might control bioaccumulation in periphyton in natural freshwaters. Thus, dynamic metal species should be considered in models predicting bioavailability.

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Interactions of cadmium with periphyton in natural freshwaters

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