Imazapyr+imazapic herbicide determines acute toxicity in silver catfish Rhamdia quelen

Golombieski, Jaqueline Ineu; Sutili, Fernando Jonas; Salbego, Joseânia; Seben, Débora; Gressler, Luciane Tourem; Cunha, Jessyka Arruda da; Zanella, Renato; Vaucher, Rodrigo de Almeida; Marchesan, Enio; Baldisserotto, Bernardo

doi:10.1016/j.ecoenv.2016.02.010

Cited by 35 publications

(8 citation statements)

References 49 publications

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“…in the soil. The toxicity of the metabolites of many herbicides can be much higher than the starting compound (Golombieski et al, 2016;Carles et al, 2017). For this reason, supplementing chemical tests with acute toxicity tests is a rational solution.…”

Section: Resultsmentioning

confidence: 99%

Use of Toxicity Tests to Assess the Harmfulness of Selected Herbicides

Izbicki,

Butarewicz,

Andraka

2024

J. Ecol. Eng.

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The aim of the study was to assess the impact of selected herbicides: Roundup Flex Ogrod, Sprinter 350 SL and Chwastox TRIO ® 540 SL on the natural environment. The effect of herbicide preparations on the survival and life functions of test organisms was determined using toxicological studies. Various taxa were selected for toxicity tests: Gram-positive bacteria, Gram-negative bacteria, bioluminescent bacteria Aliivibrio fischeri, aquatic crustaceans Daphnia magna and Chironomus sp. larvae. A determination of the minimum inhibitory concentration (MIC) of herbicides on selected micro-organisms was carried out, as well as an effective concentration (EC 50 ) to inhibit the bioluminescence of Aliivibrio fischeri, and acute toxicity tests were performed with Daphnia magna and Chironomus sp., for which a lethal concentration (LC 50 ) was determined. In acute tests, the LC 50 concentration was calculated by statistical methods. All tested herbicides belong to highly toxic compounds. Sprinter 350 SL showed the highest degree of toxicity, while Roundup Flex Ogrod and Chwastox TRIO ® 540 SL showed similar harmfulness. The herbicide formulations tested showed varying degrees of toxicity using Daphnia crustaceans and Chironomus larvae. Daphnia were more sensitive in acute tests. Based on the conducted research, it was found that regular and detailed control of toxicity and the impact of herbicides on the environment is necessary.

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Section: Resultsmentioning

confidence: 99%

Use of Toxicity Tests to Assess the Harmfulness of Selected Herbicides

Izbicki,

Butarewicz,

Andraka

2024

J. Ecol. Eng.

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“…Os níveis de lactato no fígado (Tabela 1) não sofreram alterações nos dois tratamentos testados nas 24h de exposição, sendo que nos demais períodos houve aumento significativo. ROSSI, 2013;GOLOMBIESKI et al, 2016). Nos períodos seguintes, em ambos os Experimentos, os peixes se alimentaram (em todos os tratamentos), evidenciando um aumento numérico dos níveis de glicogênio no fígado destes, já que os mesmos não necessitavam realizar a sua quebra, visto que obtinham energia através da glicose, pela alimentação.…”

Section: Resultsunclassified

“…Estudos que relacionam os efeitos do uso dos agrotóxicos em peixes tem se tornado frequentes (KREUTZ et al, 2008;CERICATO et al, 2009;SALBEGO et al, 2010;GOLOMBIESKI et al, 2016;MARCHEZAN et al, 2016;BALDISSERA et al, 2018;CLASEN et al, 2018;).…”

Section: Introductionunclassified

“…O peixe teleósteo Rhamdia quelen (heptapteridae), conhecido popularmente como jundiá provou ser um bom modelo para avaliar a toxicidade e os efeitos de contaminantes (GOLOMBIESKI et al, 2016;BALDISSERA et al, 2018). Além disso, é uma espécie ecologicamente relevante que mostra uma boa taxa de crescimento, altas taxas de fertilização e eclosão dos ovos e é popular entre os consumidores (GOMES et al, 2000).…”

Section: Introductionunclassified

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Aplicação De Novas Tecnologias Em Hidrometria Com Base Em Estudos De Viabilidade Econômico Financeiro

Drumond¹

2020

Demandas Essenciais Para O Avanço Da Engenharia Sanitária E Ambiental 4

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Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição 4.0 Internacional (CC BY 4.0).O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais.

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“…One of the environmental concerns is the persistency of imidazolinone herbicide in soil [11 -14] and groundwater [15]. Since these herbicides are able to remain for a long period of time in the environment, it may pose risks to non-target organisms such as fish [16,17].…”

Section: Introductionmentioning

confidence: 99%

Degradation of Imazapyr and Imazapic in Aqueous Solutions and Soil Under Direct Sunlight

Norashikin

Hussain

Hassan

et al. 2017

MJAS

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Photolytic degradation of imazapyr and imazapic in aqueous solutions (pH 3, 7 and 9) and soil under direct sunlight were studied. A total of 0.1 mL of aqueous solutions containing herbicides were collected at 0, 1, 2 and 3 days and were directly analyzed using high performance liquid chromatography equipped with ultraviolet detector (HPLC-UV) without further clean-up process. Soils that were treated with herbicides were sampled at seven different days (0, 1, 5, 10, 16, 23 and 30). The photolytic results showed that imazapyr and imazapic degraded faster in solutions compared to soils (> 90%). Photolysis of imidazolinone herbicides became more effective as the pH value increased. The half-lives for imazapyr and imazapic degradation on soil surface under sunlight were calculated at 126 days and 85.56 days, respectively. Low degradation of imazapyr and imazapic in soil becomes a concern since it may contribute to the persistency of imidazolinone herbicides in this media. The use of these herbicides should be planned well to reduce the risk of herbicides leaching into groundwater and posing risk to non-target crops and organism.Keywords: photolysis, imazapyr, imazapic, aqueous solutions, soil Abstrak Kajian degradasi fotolitik bagi imazapyr dan imazapic dalam larutan akueus (pH 3, 7 dan 9) dan tanah di bawah cahaya matahari telah dijalankan. Sebanyak 0.1 mL cecair larutan yang mengandungi racun rumpai telah diambil pada hari 0, 1, 2 dan 3 dan terus dianalisis menggunakan kromatografi cecair berprestasi tinggi dengan pengesan ultra-ungu (HPLC-UV) tanpa melalui sebarang proses pembersihan. Tanah yang telah dicampurkan dengan racun rumpai telah disampelkan pada tujuh hari yang berbeza (0, 1, 5, 10, 16, 23 dan 30). Keputusan fotolitik menunjukkan imazapyr dan imazapic lebih cepat terurai di dalam cecair berbanding dengan tanah (>90%). Fotolisis racun rumpai imidazolinon adalah lebih berkesan apabila pH meningkat. Jangka masa separuh hayat untuk imazapyr dan imazapic terurai di permukaan tanah di bawah cahaya matahari masing-masing adalah 126 dan 85.56 hari. Degradasi rendah bagi imazapyr dan imazapic dalam tanah telah menjadi suatu kebimbangan kerana ia boleh menyumbang kepada pengekalan racun rumpai imidazolinon di dalam media ini. Penggunaan racun rumpai ini perlu dirancang dengan sebaiknya bagi mengurangkan risiko untuk racun larut terlesap ke dalam air bawah tanah dan menimbulkan risiko kepada tanaman dan organisma yang bukan sasarannya.

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Imazapyr+imazapic herbicide determines acute toxicity in silver catfish Rhamdia quelen

Cited by 35 publications

References 49 publications

Use of Toxicity Tests to Assess the Harmfulness of Selected Herbicides

Use of Toxicity Tests to Assess the Harmfulness of Selected Herbicides

Aplicação De Novas Tecnologias Em Hidrometria Com Base Em Estudos De Viabilidade Econômico Financeiro

Degradation of Imazapyr and Imazapic in Aqueous Solutions and Soil Under Direct Sunlight

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