Dose-dependent effects of lead and cadmium and the influence of soil properties on their uptake by Helix aspersa:an ecotoxicity test approach
| Autor: | Hadjer Belhiouani, Cornelis A.M. van Gestel, Rudo A. Verweij, Aboubakre Seddik Sahraoui, Oumnya Cheriti, Leila Sahli |
|---|---|
| Přispěvatelé: | Animal Ecology |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Bioavailability Health Toxicology and Mutagenesis chemistry.chemical_element 010501 environmental sciences Management Monitoring Policy and Law Toxicology 01 natural sciences Ecotoxicity test Soil Cation-exchange capacity Animals Soil Pollutants Helix aspersa Organic matter 0105 earth and related environmental sciences chemistry.chemical_classification Cadmium Helix Snails Land snail Soil classification General Medicine 010602 entomology chemistry Lead Environmental chemistry Soil water Soil properties Ecotoxicity |
| Zdroj: | Sahraoui, A S, Verweij, R A, Belhiouani, H, Cheriti, O, van Gestel, C A M & Sahli, L 2021, ' Dose-dependent effects of lead and cadmium and the influence of soil properties on their uptake by Helix aspersa : an ecotoxicity test approach ', Ecotoxicology, vol. 30, no. 2, pp. 331-342 . https://doi.org/10.1007/s10646-020-02331-z Ecotoxicology, 30(2), 331-342. Springer Netherlands |
| ISSN: | 0963-9292 |
| DOI: | 10.1007/s10646-020-02331-z |
| Popis: | Three soil types with different physicochemical properties were selected to evaluate their effect on lead and cadmium bioavailability and toxicity in the land snail Helix aspersa. In 28-day ecotoxicity tests, H. aspersa juveniles were exposed to increasing concentrations of Pb or Cd. EC50s, concentrations reducing snail growth by 50%, differed between the soils and so did Cd and Pb uptake in the snails. For lead, EC50s were 2397–6357 mg Pb/kg dry soil, while they ranged between 327 and 910 mg Cd/kg dry soil for cadmium. Toxicity and metal uptake were highest on the soil with the lowest pH, organic matter content and Cation Exchange Capacity (CEC). Growth reduction was correlated with metal accumulation levels in the snails’ soft body, and differences in toxicity between the soils decreased when EC50s were expressed on the basis of internal metal concentrations in the snails. These results confirm the effect of soil properties; pH, CEC, OM content, on the uptake and growth effect of Pb and Cd in H. aspersa, indicating the importance of properly characterizing soils when assessing the environmental risk of metal contaminated sites. |
| Databáze: | OpenAIRE |
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