scholarly journals Evaluation Of The Biotic Ligand Model For Predicting Metal Bioavailability and Toxicity In SRS Effluents And Surface Waters

2005 ◽  
Author(s):  
WINONA SPECHT
Author(s):  
Peter G.C Campbell ◽  
Olivier Errécalde ◽  
Claude Fortin ◽  
Véronique P Hiriart-Baer ◽  
Bernard Vigneault

2016 ◽  
Vol 13 (3) ◽  
pp. 425 ◽  
Author(s):  
Chun-Mei Zhao ◽  
Peter G.C. Campbell ◽  
Kevin J. Wilkinson

Environmental contextThe concentration of a free metal cation has proved to be a useful predictor of metal bioaccumulation and toxicity, as represented by the free ion activity and biotic ligand models. However, under certain circumstances, metal complexes have been shown to contribute to metal bioavailability. In the current mini-review, we summarise the studies where the classic models fail and organise them into categories based on the different uptake pathways and kinetic processes. Our goal is to define the limits within which currently used models such as the biotic ligand model (BLM) can be applied with confidence, and to identify how these models might be expanded. AbstractNumerous data from studies over the past 30 years have shown that metal uptake and toxicity are often best predicted by the concentrations of free metal cations, which has led to the development of the largely successful free-ion activity model (FIAM) and biotic ligand model (BLM). Nonetheless, some exceptions to these classical models, showing enhanced metal bioavailability in the presence of metal complexes, have also been documented, although it is not yet fully understood to what extent these exceptions can or should be generalised. Only a few studies have specifically measured the bioaccumulation or toxicity of metal complexes while carefully measuring or controlling metal speciation. Fewer still have verified the fundamental assumptions of the classical models, especially when dealing with metal complexes. In the current paper, we have summarised the exceptions to classical models and categorised them into five groups based on the fundamental uptake pathways and kinetic processes. Our aim is to summarise the mechanisms involved in the interaction of metal complexes with organisms and to improve the predictive capability of the classic models when dealing with complexes.


2011 ◽  
Vol 64 (6) ◽  
pp. 1277-1283 ◽  
Author(s):  
Chunyan Wang ◽  
Hao Chen ◽  
Kuen Benjamin Wu ◽  
Lihui An ◽  
Binghui Zheng

LA50, the Lethal Accumulation of Cu on the Medaka fish (Oryzias latipes) gills that results in 50% mortality during a toxicological exposure (96 hours) in synthetic water was assessed by use of the biotic ligand model (BLM). The LA50 was employed to predict the 96 h Cu toxicity (LC50) to this fish in different natural surface waters in China. The LC50 values were predicted with errors of no more than 1.55 for the river water except for two water samples, one of which was from a tidal river and the other of which was from a river that was subject to joint metal pollution and possibly affected by other pollutants.


2007 ◽  
Vol 84 (2) ◽  
pp. 279-291 ◽  
Author(s):  
Eric Van Genderen ◽  
Robert Gensemer ◽  
Carrie Smith ◽  
Robert Santore ◽  
Adam Ryan

2015 ◽  
Vol 7 (0) ◽  
pp. 9781780403656-9781780403656
Author(s):  
P. Paquin ◽  
D. M. Di Toro

2016 ◽  
Vol 2016 (10) ◽  
pp. 1877-1894 ◽  
Author(s):  
R.W Gensemer ◽  
John Gondek ◽  
Steven P Canton ◽  
Amanda Kovach ◽  
Carrie A Claytor

2015 ◽  
Vol 2015 (5) ◽  
pp. 3489-3505
Author(s):  
Robert Martin ◽  
Carrie Claytor ◽  
Chris Bieker

2017 ◽  
Vol 2017 (12) ◽  
pp. 2117-2127
Author(s):  
Ariel M Mosbrucker ◽  
Jeffrey A Nason ◽  
Kenneth J Williamson ◽  
Bob Baumgartner

Sign in / Sign up

Export Citation Format

Share Document