Pesticides in a case study on no-tillage farming systems and surrounding forest patches in Brazil

Abstract With the growing global concern on pesticide management, the relationship between its environmental recalcitrance, food security and human health has never been more relevant. Pesticides residues are known to cause significant environmental contamination. Here, we present a case study on lo...

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Autores principales:	Karlo Alves da Silva, Vitoria Beltrame Nicola, Rafaela Tavares Dudas, Wilian Carlo Demetrio, Lilianne dos Santos Maia, Luis Cunha, Marie Luise Carolina Bartz, George Gardner Brown, Amarildo Pasini, Peter Kille, Nuno G. C. Ferreira, Cíntia Mara Ribas de Oliveira
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/fc36eb261a2e4b908935de0b48ae63bb
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spelling	oai:doaj.org-article:fc36eb261a2e4b908935de0b48ae63bb2021-12-02T15:36:31ZPesticides in a case study on no-tillage farming systems and surrounding forest patches in Brazil10.1038/s41598-021-88779-32045-2322https://doaj.org/article/fc36eb261a2e4b908935de0b48ae63bb2021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-88779-3https://doaj.org/toc/2045-2322Abstract With the growing global concern on pesticide management, the relationship between its environmental recalcitrance, food security and human health has never been more relevant. Pesticides residues are known to cause significant environmental contamination. Here, we present a case study on long-term no-tillage farming systems in Brazil, where Glyphosate (GLY) has been applied for more than 35 years. GLY and its main breakdown product, aminomethylphosphonic acid (AMPA) were determined in topsoil (0–10 cm) samples from no-tillage fields and nearby subtropical secondary forests by high-performance liquid chromatography coupled with a fluorescence detector. In addition, the presence of carbamates, organochlorines, organophosphates and triazines were also screened for. GLY and AMPA were present in all soil samples, reaching values higher than those described for soils so far in the literature. A significant decrease for AMPA was observed only between the secondary forest and the farm's middle slope for site B. GLY and AMPA were observed respectively at peak concentrations of 66.38 and 26.03 mg/kg soil. GLY was strongly associated with forest soil properties, while AMPA associated more with no-tillage soil properties. Soil texture was a significant factor contributing to discrimination of the results as clay and sand contents affect GLY and AMPA retention in soils. This was the first study to report DDT and metabolites in consolidated no-tillage soils in Brazil (a pesticide fully banned since 2009). Based on human risk assessment conducted herein and the potential risk of GLY to local soil communities, this study offers a baseline for future studies on potential adverse effects on soil biota, and mechanistic studies.Karlo Alves da SilvaVitoria Beltrame NicolaRafaela Tavares DudasWilian Carlo DemetrioLilianne dos Santos MaiaLuis CunhaMarie Luise Carolina BartzGeorge Gardner BrownAmarildo PasiniPeter KilleNuno G. C. FerreiraCíntia Mara Ribas de OliveiraNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Karlo Alves da Silva Vitoria Beltrame Nicola Rafaela Tavares Dudas Wilian Carlo Demetrio Lilianne dos Santos Maia Luis Cunha Marie Luise Carolina Bartz George Gardner Brown Amarildo Pasini Peter Kille Nuno G. C. Ferreira Cíntia Mara Ribas de Oliveira Pesticides in a case study on no-tillage farming systems and surrounding forest patches in Brazil
description	Abstract With the growing global concern on pesticide management, the relationship between its environmental recalcitrance, food security and human health has never been more relevant. Pesticides residues are known to cause significant environmental contamination. Here, we present a case study on long-term no-tillage farming systems in Brazil, where Glyphosate (GLY) has been applied for more than 35 years. GLY and its main breakdown product, aminomethylphosphonic acid (AMPA) were determined in topsoil (0–10 cm) samples from no-tillage fields and nearby subtropical secondary forests by high-performance liquid chromatography coupled with a fluorescence detector. In addition, the presence of carbamates, organochlorines, organophosphates and triazines were also screened for. GLY and AMPA were present in all soil samples, reaching values higher than those described for soils so far in the literature. A significant decrease for AMPA was observed only between the secondary forest and the farm's middle slope for site B. GLY and AMPA were observed respectively at peak concentrations of 66.38 and 26.03 mg/kg soil. GLY was strongly associated with forest soil properties, while AMPA associated more with no-tillage soil properties. Soil texture was a significant factor contributing to discrimination of the results as clay and sand contents affect GLY and AMPA retention in soils. This was the first study to report DDT and metabolites in consolidated no-tillage soils in Brazil (a pesticide fully banned since 2009). Based on human risk assessment conducted herein and the potential risk of GLY to local soil communities, this study offers a baseline for future studies on potential adverse effects on soil biota, and mechanistic studies.
format	article
author	Karlo Alves da Silva Vitoria Beltrame Nicola Rafaela Tavares Dudas Wilian Carlo Demetrio Lilianne dos Santos Maia Luis Cunha Marie Luise Carolina Bartz George Gardner Brown Amarildo Pasini Peter Kille Nuno G. C. Ferreira Cíntia Mara Ribas de Oliveira
author_facet	Karlo Alves da Silva Vitoria Beltrame Nicola Rafaela Tavares Dudas Wilian Carlo Demetrio Lilianne dos Santos Maia Luis Cunha Marie Luise Carolina Bartz George Gardner Brown Amarildo Pasini Peter Kille Nuno G. C. Ferreira Cíntia Mara Ribas de Oliveira
author_sort	Karlo Alves da Silva
title	Pesticides in a case study on no-tillage farming systems and surrounding forest patches in Brazil
title_short	Pesticides in a case study on no-tillage farming systems and surrounding forest patches in Brazil
title_full	Pesticides in a case study on no-tillage farming systems and surrounding forest patches in Brazil
title_fullStr	Pesticides in a case study on no-tillage farming systems and surrounding forest patches in Brazil
title_full_unstemmed	Pesticides in a case study on no-tillage farming systems and surrounding forest patches in Brazil
title_sort	pesticides in a case study on no-tillage farming systems and surrounding forest patches in brazil
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/fc36eb261a2e4b908935de0b48ae63bb
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Pesticides in a case study on no-tillage farming systems and surrounding forest patches in Brazil

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