Abstract
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.
| Language | English |
|---|---|
| Pages | 19-25 |
| Number of pages | 7 |
| Journal | Environmental Pollution |
| Volume | 246 |
| Early online date | 26 Nov 2018 |
| DOIs | |
| State | E-pub ahead of print - 26 Nov 2018 |
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Keywords
- Bioavailability
- Conditional binding constant
- Metal
- Soil
- Springtail
- Survival
Cite this
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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. / Ardestani, Masoud M.; van Gestel, Cornelis A.M.
In: Environmental Pollution, Vol. 246, 01.03.2019, p. 19-25.Research output: Contribution to Journal › Article › Academic › peer-review
TY - JOUR
T1 - The effect of major cations on the toxicity of cadmium to Folsomia candida in a sand-solution medium analyzed by biotic ligand modeling
AU - Ardestani,Masoud M.
AU - van Gestel,Cornelis A.M.
PY - 2018/11/26
Y1 - 2018/11/26
N2 - 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.
AB - 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.
KW - Bioavailability
KW - Conditional binding constant
KW - Metal
KW - Soil
KW - Springtail
KW - Survival
UR - http://www.scopus.com/inward/record.url?scp=85059321790&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85059321790&partnerID=8YFLogxK
U2 - 10.1016/j.envpol.2018.11.082
DO - 10.1016/j.envpol.2018.11.082
M3 - Article
VL - 246
SP - 19
EP - 25
JO - Environmental Pollution
T2 - Environmental Pollution
JF - Environmental Pollution
SN - 0269-7491
ER -