PMID: 15224742Jul 1, 2004Paper

Influence of metal speciation in natural freshwater on bioaccumulation of copper and zinc in periphyton: a microcosm study

Environmental Science & Technology
Sébastien MeylanLaura Sigg

Abstract

The free ion activity model (FIAM) has already been confirmed under laboratory conditions for many trace metals but has still to be validated under natural conditions where the presence of natural organic ligands influences metal speciation and bioavailability. The goal of this study was to test if the FIAM is followed under natural conditions by measuring copper and zinc speciation as well as metal accumulation in periphyton. Periphyton was exposed in microcosms to natural river water with different added concentrations of copper (25-258 nM) or zinc (18-501 nM) and additions of a synthetic ligand (NTA). Free Cu2+ was in the range of 10(-16.5)-10(-14.5) M and Zn(2+) was in the range of 0.7-8.7 nM, as measured by competitive ligand exchange coupled with cathodic/anodic stripping voltammetry. Other metal complexes were either measured or computed. Bioaccumulation of zinc in periphyton appeared to be controlled by the free zinc ion concentration, confirming the FIAM. In contrast, bioaccumulation of copper was controlled by weakly complexed copper (including Cu2+ plus inorganic and weak organic complexes), which is in disagreement with the FIAM, and appears to be caused by limitation of copper diffusion due to very low free Cu2+ oc...Continue Reading

References

Dec 6, 2003·Environmental Science & Technology·Sébastien MeylanLaura Sigg
Jan 1, 1989·Environmental Pollution·M C Newman, A W McIntosh

❮ Previous
Next ❯

Citations

Mar 5, 2009·Archives of Environmental Contamination and Toxicology·Elaine C IrvingJoseph M Culp
Mar 15, 2011·Ecotoxicology·Lise C FechnerMarie-Hélène Tusseau-Vuillemin
Jan 6, 2009·Environmental Geochemistry and Health·Biplob DasAsit Mazumder
Jul 15, 2011·Environmental Science & Technology·Sylvia G SanderMona Wells
May 13, 2011·Environmental Science & Technology·Sandrine MonginWilliam Davison
Nov 7, 2012·Water Research·Flora A Vega, Liping Weng
Mar 31, 2012·The Science of the Total Environment·Isabelle LavoieClaude Fortin
Apr 20, 2010·Aquatic Toxicology·Ursula DorigoBernard Montuelle
Feb 6, 2007·The Science of the Total Environment·Marie-Hélène Tusseau-VuilleminFrançoise Elbaz-Poulichet
Sep 28, 2010·Environmental Toxicology and Chemistry·Jin ZengWen-Xiong Wang
Aug 19, 2014·Environmental Toxicology and Chemistry·Guang YangKevin J Wilkinson
Sep 1, 2015·Environmental Science & Technology·T J StewartM Nachtegaal
Jun 17, 2015·Environmental Monitoring and Assessment·Norbert KamjunkeMarkus Weitere
May 14, 2016·Environmental Science. Processes & Impacts·Katelyn Turpin-Nagel, Timothy M Vadas
Aug 5, 2017·Environmental Toxicology and Chemistry·Perrine DranguetVera I Slaveykova
Dec 13, 2016·Environmental Science. Processes & Impacts·P DranguetV I Slaveykova
Jan 19, 2010·Journal of Environmental Monitoring : JEM·Ana Santos, Simon Judd
Jul 25, 2019·Scientific Reports·Géraldine SarretAnne-Marie Aucour
Feb 10, 2021·Marine Pollution Bulletin·Sucharita ChakrabortyManoj Kumar Patra
Nov 12, 2020·Anais Da Academia Brasileira De Ciências·Suzelei RodgherEvaldo L G Espindola
May 1, 2020·Environmental Science & Technology·Margot Aude CoutaudOleg S Pokrovsky
Oct 24, 2009·Environmental Science & Technology·Philippe BradacLaura Sigg
Apr 25, 2021·The Science of the Total Environment·Vincent LaderriereClaude Fortin

❮ Previous
Next ❯

Related Concepts

Related Feeds

Biofilm & Infectious Disease

Biofilm formation is a key virulence factor for a wide range of microorganisms that cause chronic infections.Here is the latest research on biofilm and infectious diseases.

Related Papers

Environmental Toxicology and Chemistry
Daniel FerreiraMarie-Hélène Tusseau-Vuillemin
The Science of the Total Environment
Marie-Hélène Tusseau-VuilleminFrançoise Elbaz-Poulichet
© 2022 Meta ULC. All rights reserved