The effects of complex metal oxide mixtures on three soil invertebrates with contrasting biological traits

Renaud, Mathieu; Cousins, Mark; Awuah, Kobby Fred; Jegede, Olugbemiro J.; Sousa, José Paulo; Siciliano, Steven D.

doi:10.1016/j.scitotenv.2020.139921

Cited by 7 publications

(3 citation statements)

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“…The Cu exposure also had a negative effect on the springtails, although these were the organisms whose results indicate greater resistance to the effects of the metal. According to Renaud et al (2020), the toxicity of trace elements in F. candida tends to be directly related to the solubility of the cations in the soil. In this sense, it should be noted that the changes followed the same pattern as for earthworms and enchytraeids, i.e.…”

Section: Discussionmentioning

confidence: 99%

“…Understanding the effects of this contamination has become essential for protecting biodiversity and ecosystem services connected with soil. Although the topic has been extensively researched in northern hemisphere soils (Spurgeon & Hopkin, 1996 Renaud et al, 2020), there are few reports on the effects of Cu in tropical and subtropical soils.…”

Section: Introductionmentioning

confidence: 99%

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Prevention Values for Copper (Low Tier Approach) in Subtropical Acidic Soils

de Oliveira,

Freitas,

Rosa

et al. 2024

Preprint

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Copper is a trace element in plants and animals whose importance can be understood due to its role in different essential metabolic processes. Anthropogenic activities such as agriculture and mining are potential sources of pollution due to the emission of copper into the environment. Brazilian legislation ties soil quality to guideline values, among which the Prevention Value indicates the critical environmental limit for trace elements. The aim of this study was to obtain PVs for copper for two subtropical soils (Cambisol and Nitisol), given that the pedological richness was not considered when deriving the PVs contained in the federal normative. Reproduction assays followed ISO guidelines with the earthworm species Eisenia andrei and Perionyx excavatus, the enchytraeids Enchytraeus crypticus and E. bigeminus and the springtails Folsomia candida and Proisotoma minuta. Results showed that the sensitivity of the organisms was greater in Cambisol. The most sensitive species were the earthworms, especially P. excavatus (EC50 = 67.83 in Cambisol; EC50 = 264.96 in Nitisol). The springtails, on the other hand, were the least sensitive to contamination. These findings reinforce the need to include organisms from different ecological groups in ecotoxicological assessments. It was also observed that the PV adopted in federal legislation (= 60 mg kg-1) is in fact protective for the species and soils we evaluated, since the PVs we obtained based on the EC50 were 346.74 mg kg-1 in Nitisol and 134.05 mg kg-1 in Cambisol. It is important to note that our results do not exclude the need for evaluations with other subtropical soils, given the influence of their properties on the toxicity and bioavailability of copper to soil organisms.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Prevention Values for Copper (Low Tier Approach) in Subtropical Acidic Soils

de Oliveira,

Freitas,

Rosa

et al. 2024

Preprint

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“…In addition, E. crypticus are small organisms that live in the upper layer of the soil, and so they can be used to conduct experiments in small jars or vessels (Castro‐Ferreira et al, 2012). For these reasons, they are regarded as a species for ecotoxicology studies and are used widely in soil toxicity experiments for many pollutants including metals such as Cr, Pb, Zn, Cu, Ni, and Co (Renaud et al, 2020; Santos et al, 2022; Zhang et al, 2019), silver nanoparticles (Padilha Mendonca, 2020), and microplastic (Lahive et al, 2019b). The studied endpoints of these toxic chemicals were morphology change, survival, reproduction, lethality, and cell biochemistry analyses (S. Li, Jia, et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

The effect of polystyrene microplastic and biosolid application on the toxicity and bioaccumulation of cadmium for Enchytraeus crypticus

Ozturk

Ozkul

Topuz

2022

Integr Envir Assess & Manag

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Plastics smaller than 5 mm that end up in a soil environment are known as microplastics (MPs). Microplastics have become a common contaminant in agricultural areas in addition to metals. However, the effect of cadmium (Cd) on soil organisms has not been clearly defined in the presence of MPs. In addition to MPs, biosolid application as a soil amendment in agricultural lands is also leading to shifts in soil conditions, such as the concentrations of nutrients and organic matter. Therefore, the aim of this study is to investigate the toxicity and bioaccumulation of Cd for Enchytraeus crypticus in the presence of polystyrene (PS)-MPs and biosolids to provide insight into their possible interactions. The lethal toxic concentration (LC50) for Cd was higher than 650 mg Cd/kg dry soil for all conditions. The presence of PS-MPs increased the toxicity of Cd for which EC50 was 102 and 38 mg Cd/kg dry soil without and with Cd, respectively, which may be the result of an increased exposure rate through adsorption of Cd on PS-MPs. On the contrary, the presence of biosolids decreased the toxicity of Cd where EC50 was 193 and 473 mg Cd/kg dry soil for the sets applied with 0.6 and 0.9 g biosolids, respectively. Coexistence of biosolids and PS-MPs decreased the reproduction toxicity of Cd, which is similar to the biosolid effect (EC50 is 305 mg Cd/kg dry soil). Bioaccumulation of Cd only positively correlated with its initial concentration in soil and was not affected by the presence of PS-MPs or biosolids.

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