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Fate, uptake, and distribution of nanoencapsulated pesticides in soil–earthworm systems and implications for environmental risk assessment

Nanopesticides are novel plant protection products offering numerous benefits. Because nanoparticles behave differently from dissolved chemicals, the environmental risks of these materials could differ from conventional pesticides. We used soil-earthworm systems to compare the fate and uptake of ana...

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Main Authors: Mohd Anuar, Mohd Firdaus, Agatz, Annika, Hodson, Mark E., Al-Khazrajy, Omar S. A., Boxall, Alistair B. A.
Format: Article
Language:English
Published: Wiley 2018
Online Access:http://psasir.upm.edu.my/id/eprint/72739/1/Fate%2C%20uptake%2C%20and%20distribution%20of%20nanoencapsulated%20pesticides%20.pdf
http://psasir.upm.edu.my/id/eprint/72739/
https://pubmed.ncbi.nlm.nih.gov/29341233/
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spelling my.upm.eprints.727392021-01-30T02:11:36Z http://psasir.upm.edu.my/id/eprint/72739/ Fate, uptake, and distribution of nanoencapsulated pesticides in soil–earthworm systems and implications for environmental risk assessment Mohd Anuar, Mohd Firdaus Agatz, Annika Hodson, Mark E. Al-Khazrajy, Omar S. A. Boxall, Alistair B. A. Nanopesticides are novel plant protection products offering numerous benefits. Because nanoparticles behave differently from dissolved chemicals, the environmental risks of these materials could differ from conventional pesticides. We used soil-earthworm systems to compare the fate and uptake of analytical-grade bifenthrin to that of bifenthrin in traditional and nanoencapsulated formulations. Apparent sorption coefficients for bifenthrin were up to 3.8 times lower in the nano treatments than in the non-nano treatments, whereas dissipation half-lives of the nano treatments were up to 2 times longer. Earthworms in the nano treatments accumulated approximately 50% more bifenthrin than those in the non-nano treatments. In the non-nano treatments, most of the accumulated material was found in the earthworm tissue, whereas in the nano treatments, the majority resided in the gut. Evaluation of toxicokinetic modeling approaches showed that models incorporating the release rate of bifenthrin from the nanocapsule and distribution within the earthworm provided the best estimations of uptake from the nano-formulations. Overall, our findings indicate that the risks of nanopesticides may be different from those of conventional formulations. The modeling presented provides a starting point for assessing risks of these materials but needs to be further developed to better consider the behavior of the nanoencapsulated pesticide within the gut system. Wiley 2018-05 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/72739/1/Fate%2C%20uptake%2C%20and%20distribution%20of%20nanoencapsulated%20pesticides%20.pdf Mohd Anuar, Mohd Firdaus and Agatz, Annika and Hodson, Mark E. and Al-Khazrajy, Omar S. A. and Boxall, Alistair B. A. (2018) Fate, uptake, and distribution of nanoencapsulated pesticides in soil–earthworm systems and implications for environmental risk assessment. Environmental Toxicology and Chemistry, 37 (5). pp. 1420-1429. ISSN 0730-7268; ESSN: 1552-8618 https://pubmed.ncbi.nlm.nih.gov/29341233/ 10.1002/etc.4094
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Nanopesticides are novel plant protection products offering numerous benefits. Because nanoparticles behave differently from dissolved chemicals, the environmental risks of these materials could differ from conventional pesticides. We used soil-earthworm systems to compare the fate and uptake of analytical-grade bifenthrin to that of bifenthrin in traditional and nanoencapsulated formulations. Apparent sorption coefficients for bifenthrin were up to 3.8 times lower in the nano treatments than in the non-nano treatments, whereas dissipation half-lives of the nano treatments were up to 2 times longer. Earthworms in the nano treatments accumulated approximately 50% more bifenthrin than those in the non-nano treatments. In the non-nano treatments, most of the accumulated material was found in the earthworm tissue, whereas in the nano treatments, the majority resided in the gut. Evaluation of toxicokinetic modeling approaches showed that models incorporating the release rate of bifenthrin from the nanocapsule and distribution within the earthworm provided the best estimations of uptake from the nano-formulations. Overall, our findings indicate that the risks of nanopesticides may be different from those of conventional formulations. The modeling presented provides a starting point for assessing risks of these materials but needs to be further developed to better consider the behavior of the nanoencapsulated pesticide within the gut system.
format Article
author Mohd Anuar, Mohd Firdaus
Agatz, Annika
Hodson, Mark E.
Al-Khazrajy, Omar S. A.
Boxall, Alistair B. A.
spellingShingle Mohd Anuar, Mohd Firdaus
Agatz, Annika
Hodson, Mark E.
Al-Khazrajy, Omar S. A.
Boxall, Alistair B. A.
Fate, uptake, and distribution of nanoencapsulated pesticides in soil–earthworm systems and implications for environmental risk assessment
author_facet Mohd Anuar, Mohd Firdaus
Agatz, Annika
Hodson, Mark E.
Al-Khazrajy, Omar S. A.
Boxall, Alistair B. A.
author_sort Mohd Anuar, Mohd Firdaus
title Fate, uptake, and distribution of nanoencapsulated pesticides in soil–earthworm systems and implications for environmental risk assessment
title_short Fate, uptake, and distribution of nanoencapsulated pesticides in soil–earthworm systems and implications for environmental risk assessment
title_full Fate, uptake, and distribution of nanoencapsulated pesticides in soil–earthworm systems and implications for environmental risk assessment
title_fullStr Fate, uptake, and distribution of nanoencapsulated pesticides in soil–earthworm systems and implications for environmental risk assessment
title_full_unstemmed Fate, uptake, and distribution of nanoencapsulated pesticides in soil–earthworm systems and implications for environmental risk assessment
title_sort fate, uptake, and distribution of nanoencapsulated pesticides in soil–earthworm systems and implications for environmental risk assessment
publisher Wiley
publishDate 2018
url http://psasir.upm.edu.my/id/eprint/72739/1/Fate%2C%20uptake%2C%20and%20distribution%20of%20nanoencapsulated%20pesticides%20.pdf
http://psasir.upm.edu.my/id/eprint/72739/
https://pubmed.ncbi.nlm.nih.gov/29341233/
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score 13.211869

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