Effect of temperature on the toxicity of imidacloprid to Eisenia andrei and Folsomia candida in tropical soils

2020 ◽  
Vol 267 ◽  
pp. 115565
Author(s):  
Felipe Ogliari Bandeira ◽  
Paulo Roger Lopes Alves ◽  
Thuanne Braúlio Hennig ◽  
Tânia Toniolo ◽  
Tiago Natal-da-Luz ◽  
...  
2019 ◽  
Vol 20 (4) ◽  
pp. 1997-2007 ◽  
Author(s):  
Felipe Ogliari Bandeira ◽  
Paulo Roger Lopes Alves ◽  
Thuanne Bráulio Hennig ◽  
Aline Schiehl ◽  
Elke Jurandy Bran Nogueira Cardoso ◽  
...  

2021 ◽  
Author(s):  
Rômulo CS Alexandrino ◽  
Francielle Lima ◽  
Gabriel C Martins ◽  
Tiago Natal-da-Luz ◽  
José Paulo Sousa ◽  
...  

Abstract Lead acetate (AcPb) is an important raw material used in chemical industries worldwide. The potential toxicity of AcPb is generally attributed to the presence of Pb. However, the effect of AcPb on the environment as a whole is still poorly known. This study aimed to evaluate AcPb toxicity on three standard species of soil invertebrates and two plant species using ecotoxicology tests. Three tropical soils (Oxisol, Inceptisol, and Tropical Artificial Soil (TAS)) were contaminated with different concentrations of AcPb and one dose of K-acetate (positive control). These soils were used in tests with Eisenia andrei (earthworm), Folsomia candida (springtail), Enchytraeus crypticus (enchytraeid), Zea mays (maize), and Phaseolus vulgaris (common bean). Dose-response curves obtained in the laboratory tests were used to estimate the EC50 values for each species. Among invertebrates, the highest sensitivity to AcPb was observed for E. crypticus in the TAS (EC50 = 29.8 mg AcPb kg− 1), whereas for E. andrei and F. candida the highest sensitivity was observed in the Oxisol (EC50 = 141.9 and 1835 mg AcPb kg− 1, respectively). Folsomia candida was the least sensitive invertebrate species to AcPb in all soils. Among plant species, Z. mays was less sensitive (EC50 = 1527.5 mg AcPb kg− 1) than P. vulgaris (EC50 = 560.5 mg AcPb kg− 1) in the Oxisol. The present study evidenced that the toxicity of AcPb should not be attributed uniquely to the presence of Pb, as the treatment containing uniquely Ac provoked the same toxicity as the highest dose of AcPb.


Ecotoxicology ◽  
2021 ◽  
Author(s):  
Thuanne Braúlio Hennig ◽  
Paulo Roger Lopes Alves ◽  
Tânia Toniolo ◽  
Felipe Ogliari Bandeira ◽  
William Eduardo dos Santos ◽  
...  

2019 ◽  
Vol 70 (3) ◽  
pp. 809-813 ◽  
Author(s):  
Elena Goldan ◽  
Valentin Nedeff ◽  
Narcis Barsan ◽  
Emilian Mosnegutu ◽  
Andrei Victor Sandu ◽  
...  

Organic wastes treated, used on agricultural land, can replace inorganic fertilizers, due to physical and chemical properties that improve soil and crop quality on long-term. In this study, was used biochar produced from sewage sludge, compost obtained from cattle manure, and mixtures made from biochar-compost in different concentration, at 5 t/ha and 30 t/ha, application rates. The aim of the study is to determine the influence of this organic wastes on the heavy metals bioavailability in greenhouse conditions and on Folsomia candida and Eisenia Andrei, used as test organisms under laboratory conditions. Compared to control variants, the use of biochar mixed with compost in different concentration at 5 t/ha and 30 t/ha, application rates, in a greenhouse experiment did not significantly affect the concentrations of heavy metals (Cu, Cd, Zn and Pb). Reproduction of collembolans has not been influenced by increasing application rate of the mixtures, and by concentrations of biochar or compost. The earthworms recorded weight losses, only in the experimental treatments with sewage sludge biochar used in different concentrations, at both application rates.


2019 ◽  
Vol 26 (6) ◽  
pp. 5842-5850 ◽  
Author(s):  
Paulo Roger Lopes Alves ◽  
Felipe Ogliari Bandeira ◽  
Maicon Giraldi ◽  
Rosicler Presotto ◽  
Julia Corá Segat ◽  
...  

2011 ◽  
Vol 74 (6) ◽  
pp. 1715-1720 ◽  
Author(s):  
T. Natal-da-Luz ◽  
G. Ojeda ◽  
J. Pratas ◽  
C.A.M. Van Gestel ◽  
J.P. Sousa

2021 ◽  
Author(s):  
Thuanne Braúlio Hennig ◽  
Paulo Roger Lopes Alves ◽  
Felipe Ogliari Bandeira ◽  
Liziara da Costa Cabrera ◽  
Jonas Simon Dugatto ◽  
...  

Abstract The aim of this study was to assess the effect of temperature on the toxicity of fipronil toward earthworms (Eisenia andrei) in two Brazilian soils (Entisol and Oxisol) with contrasting textures. In the case of Entisol, the influence of the soil moisture content on the toxicity was also investigated. Earthworms were exposed for 56 days to soils spiked with increasing concentrations of fipronil under scenarios with different combinations of temperature (20, 25 and 27 ºC) and soil moisture content (60 and 30% of water holding capacity (WHC) for Entisol and 60% WHC for Oxisol). The number of juveniles produced was taken as the endpoint and a risk assessment was performed based on the hazard quotient (HQ). In Entisol, at 60% WHC the fipronil toxicity decreased at 27 ºC compared with the other temperatures tested (EC50 = 52.58, 48.48 and 110 mg kg-1 for 20, 25 and 27 ºC, respectively). In the case of Oxisol at 60% WHC, the fipronil toxicity increased at 27 ºC compared with other temperatures (EC50 = 277.57, 312.87 and 39.89 mg kg-1 at 20, 25 and 27 ºC, respectively). An increase in fipronil toxicity was also observed with a decrease in soil moisture content in Entisol at 27 ºC (EC50 = 27.95 and 110 mg kg-1 for 30% and 60% WHC, respectively). The risk of fipronil was only significant at 27 ºC in Entisol and Oxisol with water contents of 30% and 60% WHC, respectively, revealing that higher temperatures can increase the risk of fipronil toxicity toward earthworms. The results reported herein show that soil properties associated with climatic shifts could enhance the ecotoxicological effects and risk of fipronil for earthworms, depending on the type of soil.


2016 ◽  
Vol 127 ◽  
pp. 22-29 ◽  
Author(s):  
Andressa Cristhy Buch ◽  
Júlia Carina Niemeyer ◽  
Maria Elizabeth Fernandes Correia ◽  
Emmanoel Vieira Silva-Filho

2018 ◽  
Vol 62 ◽  
pp. 203-209 ◽  
Author(s):  
Talyta Zortéa ◽  
Tamires Rodrigues dos Reis ◽  
Suélen Serafini ◽  
José Paulo de Sousa ◽  
Aleksandro Schafer da Silva ◽  
...  

2017 ◽  
Vol 18 (1) ◽  
pp. 64 ◽  
Author(s):  
Luís Carlos Iuñes Oliveira Filho ◽  
Dilmar Baretta ◽  
Talyta Zortéa ◽  
Jaqueline Pereira Machado Oliveira ◽  
Julio Cesar Pires Santos

A presença de resíduo piritoso no solo afeta negativamente a meso e macrofauna edáfica. Ainda assim, há uma falta de conhecimento sobre como resíduo pode afetar a biota do solo. O objetivo desta pesquisa foi avaliar as respostas crônicas e agudas em Folsomia candida e Eisenia andrei, após exposição ao resíduo piritoso (carvão mais a pirita) nas doses de 0; 2,5; 5; 10 e 20% em um Argissolo Vermelho-Amarelo e um Nitossolo Háplico. Para tal, foram realizados testes de fuga e sobrevivência e reprodução com os organismos. Os resultados encontrados mostram que o valor do pH diminuiu com a aplicação do resíduo piritoso. A menor dose do resíduo aplicada no solo afetou negativamente os organismos testados. Todas as concentrações avaliadas levaram a fuga de F. candida e E. andrei de ambos os solos contaminados. Os valores de CF50 (concentração estimada que origina 50% de fuga) ficaram abaixo de 5,3% para F. candida e de 8,5% para E. andrei. A sobrevivência de F. candida foi afetada no Argissolo e no Nitossolo, enquanto E. andrei foi afetada no Argissolo, mas não no Nitossolo. Ambos organismos obtiveram uma baixa reprodução e em alguns casos não ocorrendo reprodução. Nos testes de sobrevivência e reprodução de F. candida o valor de CL50 (concentração estimada que pode causar efeitos negativos na sobrevivência em 50% de um grupo de organismos) ficou abaixo 6,9% e CE50 (efeitos negativos na reprodução) foi inferior que 2,5%. Para as E. andrei, os valores de CL50 18,7% no Argissolo e >20% no Nitossolo e o valor de CE50 abaixo de 5,5%. Concentrações testadas neste estudo causaram efeitos negativos e representam informações ecotoxicológicas importantes para avaliações de risco ecológico de áreas ligadas a mineração de carvão.


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