Title: Copper and zinc content of periphyton from two rivers as a function of dissolved metal concentration. 
Resource Type: document --> technical publication --> journal article 
Country: EU Projects 
Year: 2002 
Availability: Aquatic Sciences, 64, 300-306 
Author 1/Producer: Behra, R. 
Other Authors/Producers: Landwehrjohann, R., Vogel, K., Wagner, B., Sigg L. 
Author / Producer Type: EC Project 
Publisher: Springer Scientific 
Article Weblink (=direct link): http://www.springerlink.com/content/44660l145nv057b3/?p=1fbf ...  
Format (e.g. PDF): HTML 
EUGRIS Keyword(s): Contaminated land-->Contaminants-->Contaminants overview
Contaminated land-->Contaminants-->Heavy metals
Diffuse pollution-->Diffuse pollution overview
Diffuse pollution-->Processes
Diffuse pollution-->Sources
Water resources and their management -->Stresses, quality and ecological status
Water resources and their management -->Water resources and their management Overview
 
Short description: Measuring the metal content of periphyton is a means of evaluating heavy metal contamination in the environment with respect to their bioavailability. The aim of this study was to identify relationships between dissolved metal concentrations and the total or intracellular metal concentrations in the periphyton from two rivers, the Birs and the Thur. Metal levels at non-contaminated sites were comparable in both rivers: the metal content of periphyton from three sites of the Birs River reflected the dissolved Cu and Zn concentrations in the water. In contrast, metal content in the periphyton from two sites of the Thur River did not reflect the dissolved metal concentrations in the water, probably due to speciation effects. The different relationships in the two rivers between the metal contents in periphyton and the dissolved concentrations indicate the influence of speciation on adsorption and bioavailability. Results are discussed in respect to the significance of metal content as a tool for evaluating metal bioavailability. 
Link to Project(s): BIOSPEC Sensor development for routine prediction of metal biouptake in freshwaters and soil solutions
 
Submitted By: Dr Stefan Gödeke WhoDoesWhat?      Last update: 03/07/2007