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The effect of major cations on the toxicity of cadmium to Folsomia candida in a sand-solution medium analyzed by biotic ligand modeling
MM. Ardestani, CAM. van Gestel,
Jazyk angličtina Země Anglie, Velká Británie
Typ dokumentu časopisecké články
- MeSH
- biologická dostupnost MeSH
- biologické modely * MeSH
- členovci účinky léků fyziologie MeSH
- kadmium toxicita MeSH
- kationty farmakokinetika MeSH
- látky znečišťující půdu toxicita MeSH
- půda chemie MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
The aim of this study was to assess the effect of major cations (Ca2+, Mg2+, Na+, K+, and H+) on cadmium toxicity to the springtail Folsomia candida. Survival of the animals was determined after seven days exposure to different cadmium concentrations in an inert sand-solution medium, in different experimental setups with modification of the cation concentrations. Among the cations tested, Ca2+ and Mg2+ had protective effects on the toxicity of cadmium to the springtails while Na+, K+, and H+ showed less competition with free cadmium ions for binding to the uptake sites of the collembolans. Toxicity predicted with a biotic ligand model agreed well with the observed values. Calculated conditional binding constants and the fraction of biotic ligands occupied by cadmium to show 50% effects were similar to values reported in the literature. The results emphasize the important role of solution chemistry in determining metal toxicity to soil invertebrates.
Citace poskytuje Crossref.org
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- $a Ardestani, Masoud M $u Institute for Environmental Studies, Charles University in Prague, Benátská 2, Prague, CZ-12801, Czech Republic; Institute of Soil Biology and SoWa Research Infrastructure, Biology Centre, Czech Academy of Sciences, Na Sádkách 7, České Budějovice, CZ-37005, Czech Republic. Electronic address: mortazavi_m2000@yahoo.com.
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