NDLI: Biotic ligand modeling approach: Synthesis of the effect of major cations on the toxicity of metals to soil and aquatic organisms

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Biotic ligand modeling approach: Synthesis of the effect of major cations on the toxicity of metals to soil and aquatic organisms

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Ardestani, Masoud M. Van Straalen, Nico M. Van Gestel, Cornelis A. M.
Description	Country affiliation: Netherlands Author Affiliation: Ardestani MM ( Department of Ecological Science, Faculty of Earth and Life Sciences, VU University, Amsterdam, The Netherlands.); van Straalen NM ( Department of Ecological Science, Faculty of Earth and Life Sciences, VU University, Amsterdam, The Netherlands.); van Gestel CA ( Department of Ecological Science, Faculty of Earth and Life Sciences, VU University, Amsterdam, The Netherlands.)
Abstract	The biotic ligand model (BLM) approach is used to assess metal toxicity, taking into account the competition of other cations with the free metal ions for binding to the biotic ligand sites of aquatic and soil organisms. The bioavailable fraction of metals, represented by the free metal ion, is a better measure than the total concentration for assessing their potential risk to the environment. Because BLMs are relating toxicity to the fraction of biotic ligands occupied by the metal, they can be useful for investigating factors affecting metal bioaccumulation and toxicity. In the present review, the effects of major cations on the toxicity of metals to soil and aquatic organisms were comprehensively studied by performing a meta-analysis of BLM literature data. Interactions at the binding sites were shown to be species- and metal-specific. The main factors affecting the relationships between toxicity and conditional binding constants for metal binding at the biotic ligand appeared to be $Ca^{2+},$ $Mg^{2+},$ and protons. Other important characteristics of the exposure medium, such as levels of dissolved organic carbon and concentrations of other cations, should also be considered to obtain a proper assessment of metal toxicity to soil and aquatic organisms. Environ Toxicol Chem 2015;34:2194–2204. © 2015 SETAC
File Format	HTM / HTML
ISSN	07307268
Issue Number	10
Volume Number	34
e-ISSN	15528618
Journal	Environmental Toxicology and Chemistry
Language	English
Publisher	Wiley
Publisher Date	2015-10-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Models, Theoretical Water Pollutants, Chemical Soil Pollutants Toxicity Discipline Environmental Health Discipline Toxicology Metals, Heavy Plants Review Metabolism Drug Effects Journal Article Aquatic Organisms Chemistry Animals Fishes Discipline Chemistry Ligands Cations
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Health, Toxicology and Mutagenesis

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