Laboratory simulation studies of leaching of the priority pesticides and their transformation products in soils

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Laboratory simulation studies of leaching of the priority pesticides and their transformation products in soils. / Suleman, M.; Keely, B. J.

In: Journal of Animal and Plant Sciences, Vol. 29, No. 4, 01.08.2019, p. 1112-1126.

Research output: Contribution to journalArticlepeer-review

Harvard

Suleman, M & Keely, BJ 2019, 'Laboratory simulation studies of leaching of the priority pesticides and their transformation products in soils', Journal of Animal and Plant Sciences, vol. 29, no. 4, pp. 1112-1126. <http://www.thejaps.org.pk/docs/v-29-04/23.pdf>

APA

Suleman, M., & Keely, B. J. (2019). Laboratory simulation studies of leaching of the priority pesticides and their transformation products in soils. Journal of Animal and Plant Sciences, 29(4), 1112-1126. http://www.thejaps.org.pk/docs/v-29-04/23.pdf

Vancouver

Suleman M, Keely BJ. Laboratory simulation studies of leaching of the priority pesticides and their transformation products in soils. Journal of Animal and Plant Sciences. 2019 Aug 1;29(4):1112-1126.

Author

Suleman, M. ; Keely, B. J. / Laboratory simulation studies of leaching of the priority pesticides and their transformation products in soils. In: Journal of Animal and Plant Sciences. 2019 ; Vol. 29, No. 4. pp. 1112-1126.

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@article{b5f51c75d21b4ed58cdcaf1aed64220f,
title = "Laboratory simulation studies of leaching of the priority pesticides and their transformation products in soils",
abstract = "Four priority pesticides (isoproturon, thifensulfuron methyl, glyphosate and propyzamide) and their main transformation products (TPs; monodesmethyl isoproturon, thifensulfuron acid, aminomethyl phosphonic acid and a ketone metabolite) were investigated for leaching behaviour from sandy clay loam soil contained in polyvinyl chloride pipes under laboratory conditions. Pesticides and their TPs were applied separately to different soil cores at the maximum recommended rates. The soils were irrigated and leachates were collected each week. Analysis of pesticides and TPs were performed via liquid chromatography mass spectrometry. It was found that isoproturon, monodesmethyl isoproturon, glyphosate, and aminomethyl phosphonic acid showed significant leaching behaviour, and were detected in leachates after a lag phase of 3-4 weeks. Propyzamide and thifensulfuron methyl were not detected in leachates nor were their TPs. Aminomethyl phosphonic acid showed a weak leaching tendency by comparison with glyphosate. It is evident that polarity as well as the ionic properties of the pesticides is important for leaching in clay loam soil. Being more polar, TPs should also be considered during risk assessment and monitoring studies of surface and ground waters.",
keywords = "Ground water contamination, Pesticide leaching, Pesticides, Soil columns, Transformation products",
author = "M. Suleman and Keely, {B. J.}",
year = "2019",
month = aug,
day = "1",
language = "English",
volume = "29",
pages = "1112--1126",
journal = "Journal of Animal and Plant Sciences",
issn = "1018-7081",
publisher = "Pakistan Agricultural Scientists Forum",
number = "4",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Laboratory simulation studies of leaching of the priority pesticides and their transformation products in soils

AU - Suleman, M.

AU - Keely, B. J.

PY - 2019/8/1

Y1 - 2019/8/1

N2 - Four priority pesticides (isoproturon, thifensulfuron methyl, glyphosate and propyzamide) and their main transformation products (TPs; monodesmethyl isoproturon, thifensulfuron acid, aminomethyl phosphonic acid and a ketone metabolite) were investigated for leaching behaviour from sandy clay loam soil contained in polyvinyl chloride pipes under laboratory conditions. Pesticides and their TPs were applied separately to different soil cores at the maximum recommended rates. The soils were irrigated and leachates were collected each week. Analysis of pesticides and TPs were performed via liquid chromatography mass spectrometry. It was found that isoproturon, monodesmethyl isoproturon, glyphosate, and aminomethyl phosphonic acid showed significant leaching behaviour, and were detected in leachates after a lag phase of 3-4 weeks. Propyzamide and thifensulfuron methyl were not detected in leachates nor were their TPs. Aminomethyl phosphonic acid showed a weak leaching tendency by comparison with glyphosate. It is evident that polarity as well as the ionic properties of the pesticides is important for leaching in clay loam soil. Being more polar, TPs should also be considered during risk assessment and monitoring studies of surface and ground waters.

AB - Four priority pesticides (isoproturon, thifensulfuron methyl, glyphosate and propyzamide) and their main transformation products (TPs; monodesmethyl isoproturon, thifensulfuron acid, aminomethyl phosphonic acid and a ketone metabolite) were investigated for leaching behaviour from sandy clay loam soil contained in polyvinyl chloride pipes under laboratory conditions. Pesticides and their TPs were applied separately to different soil cores at the maximum recommended rates. The soils were irrigated and leachates were collected each week. Analysis of pesticides and TPs were performed via liquid chromatography mass spectrometry. It was found that isoproturon, monodesmethyl isoproturon, glyphosate, and aminomethyl phosphonic acid showed significant leaching behaviour, and were detected in leachates after a lag phase of 3-4 weeks. Propyzamide and thifensulfuron methyl were not detected in leachates nor were their TPs. Aminomethyl phosphonic acid showed a weak leaching tendency by comparison with glyphosate. It is evident that polarity as well as the ionic properties of the pesticides is important for leaching in clay loam soil. Being more polar, TPs should also be considered during risk assessment and monitoring studies of surface and ground waters.

KW - Ground water contamination

KW - Pesticide leaching

KW - Pesticides

KW - Soil columns

KW - Transformation products

UR - http://www.scopus.com/inward/record.url?scp=85069741497&partnerID=8YFLogxK

UR - http://www.thejaps.org.pk/Volume/2019/29-04/index.php

M3 - Article

AN - SCOPUS:85069741497

VL - 29

SP - 1112

EP - 1126

JO - Journal of Animal and Plant Sciences

JF - Journal of Animal and Plant Sciences

SN - 1018-7081

IS - 4

ER -