Dose-dependent effects of lead and cadmium and the influence of soil properties on their uptake by Helix aspersa: an ecotoxicity test approach

Sahraoui, Aboubakre Seddik; Verweij, Rudo A.; Belhiouani, Hadjer; Cheriti, Oumnya; Gestel, Cornelis A.M. van; Sahli, Leila

doi:10.1007/s10646-020-02331-z

Cited by 6 publications

(2 citation statements)

References 98 publications

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“…In addition, Zhang et al (2021) propose that soil pH, rather than soil total metal concentration, is the main factor restricting collembolan survival and reproduction rates in naturally contaminated agricultural soils. Thus, in natural soils, studies on the survival and reproduction of collembolans in naturally metal-contaminated soils may not accurately re ect metal availability, while studies on metal accumulation in collembolans are increasing because they are indicative of metal bioavailability in soils and the potential risks to the human food chain (Sahraoui et al, 2021). The internal pollutant concentration in biota is a good biological indicator of organisms exposed to polluted areas, and methods that allow the prediction of metal bioavailability to soil biota are needed for soil health and soil ecological risk assessment.…”

Section: Introductionmentioning

confidence: 99%

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Cadmium toxicity to and accumulation in a soil collembolan (Folsomia candida): major factors and prediction using a back-propagation neural network mode

Li,

et al. 2024

Preprint

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Accurate prediction of cadmium (Cd) ecotoxicity to and accumulation in soil biota is important in soil health. However, very limited information on Cd ecotoxicity on naturally contaminated soils. Herein, we investigated soil Cd ecotoxicity using Folsomia candida, a standard single-species test animal, in 28 naturally Cd-contaminated soils, and the back-propagation neural network (BPNN) model was used to predict Cd ecotoxicity to and accumulation in F. candida. Soil total Cd and pH were the primary soil properties affecting Cd toxicity. However, soil pH was the main factor when the total Cd concentration was ˂ 3 mg kg− 1. Interestingly, correlation analysis and the K-spiked test confirmed nutrient potassium (K) was essential for Cd accumulation, highlighting the significance of studying K in Cd accumulation. The BPNN model showed greater prediction accuracy of collembolan survival rate (R2 = 0.797), reproduction inhibitory rate (R2 = 0.827), body Cd concentration (R2 = 0.961), and Cd bioaccumulation factor (R2 = 0.964) than multiple linear regression models. Then the developed BPNN model was used to predict Cd ecological risks in 57 soils in southern China. Compared to multiple linear regression models, the BPNN models can better identify high-risk regions. This study highlights the potential of BPNN as a novel and rapid tool for the evaluation and monitoring of Cd ecotoxicity in naturally contaminated soils.

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Section: Introductionmentioning

confidence: 99%

“…al., 2014;Sahraoui et al, 2021). This may be because the previous conclusions were drawn mainly from ranging and nding tests, those tests set the Cd concentration, soil pH, SOC, and CEC, etc as a single variable in a speci c soil (arti cial soils, standard soil LUFA, or newly Cd spiked soils)(Lock and Janssen, 2001a, b;Liu et al, 2019…”

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confidence: 99%

Cadmium toxicity to and accumulation in a soil collembolan (Folsomia candida): major factors and prediction using a back-propagation neural network mode

Li,

et al. 2024

Preprint

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Toxicity and accumulation of lead and cadmium in the land snail, Archachatina papyracea, in a tropical Alfisol from Southwestern Nigeria

Owojori

Awodiran

Ayanda

et al. 2022

Environ Sci Pollut Res

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Snails are an important link in the transfer of contaminants, especially metals in the food chain. Yet, few studies have examined the toxicity and accumulation of metals in snails in the tropics. This study assessed the toxicity and accumulation of two non-essential metals (cadmium and lead) to the tropical snail Archachatina papyracea. Specimens of the snail A. papyracea were exposed in a loamy soil collected from Ile-Ife, Nigeria and spiked with varying concentrations of Cd and Pb over 28 days. Survival and weight change of snails were monitored weekly while tissue accumulation was assessed at the end of the 28-day period. Survival was a more sensitive endpoint than the weight change of snails. The Cd median lethal concentration (LC50) value was 93 ± 4.4 mg/kg, while the median effect concentration (EC50) for snail weight change was 131 ± 41mg/kg. For Pb, LC50 value was 1121 ± 457 mg/kg while the EC50 value for weight change was higher at 4541 ± 1180 mg/kg. Therefore, Cd was a factor of about 10 to 30 more toxic than Pb, consistent with ndings on the relative toxicity of Cd and Pb to other soil organisms, including earthworms, springtails, and mites. Although not included initially as an endpoint, egg production in the snails decreased with increasing Cd and Pb concentrations in the substrate. Metal analysis of the foot and visceral mass of surviving snails showed progressive accumulation of Cd and Pb as concentration increased, showing the tendency to use body residue of A. papyracea as an indicator of metal pollution. It further suggests the role of this snail species in above-ground metal transfer in the food chain and highlights the potential danger for human consumption.

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Can mollusks or insects serve as bioindicators of the risk element polluted area? Gastropods (Gastropoda) versus leaf beetles (Coleoptera: Chrysomelidae)

Mukhtorova

Hlava

Száková

et al. 2023

Environ Sci Pollut Res

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Dose-dependent effects of lead and cadmium and the influence of soil properties on their uptake by Helix aspersa: an ecotoxicity test approach

Cited by 6 publications

References 98 publications

Cadmium toxicity to and accumulation in a soil collembolan (Folsomia candida): major factors and prediction using a back-propagation neural network mode

Cadmium toxicity to and accumulation in a soil collembolan (Folsomia candida): major factors and prediction using a back-propagation neural network mode

Toxicity and accumulation of lead and cadmium in the land snail, Archachatina papyracea, in a tropical Alfisol from Southwestern Nigeria

Can mollusks or insects serve as bioindicators of the risk element polluted area? Gastropods (Gastropoda) versus leaf beetles (Coleoptera: Chrysomelidae)

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