Persistence of glyphosate and aminomethylphosphonic acid in loess soil under different combinations of temperature, soil moisture and light/darkness

Bento, Celia Martins; Yang, Xiaomei; Gort, Gerrit; Xue, Sha; Dam, Ruud van; Zomer, Paul; Mol, Hans; Ritsema, C.J.; Geissen, Violette

doi:10.1016/j.scitotenv.2016.07.215

Cited by 199 publications

(115 citation statements)

References 35 publications

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“…Two aliquots of 2 g were collected from each sample. Glyphosate and AMPA concentrations were determined in the aliquots through HPLC-MS/MS using the same extraction and derivatisation method (see the Supporting Information for full details), chemicals, mobile phases, column characteristics and instrumentation conditions as described in Bento et al (2016) and Yang et al (2015).…”

Section: Glyphosate and Ampa Analysismentioning

confidence: 99%

“…Despite the European Commission (EC) recommendations on the frequency of treatments and application rates, information on the actual use/sales of GlyBH in the EU, or of the active substance glyphosate, is not available and the amounts applied per crop system is confidential in almost all countries (Muthmann, 2007). The half-life times of glyphosate and AMPA, also of importance in the respect of the amounts found in soils, are highly variable, ranging from a few days up to one or two years, depending on edaphic and environmental conditions, namely temperature and soil moisture (Bento et al, 2016;EFSA, 2013). AMPA is more persistent than glyphosate, and the degradation of both compounds is slower at colder and dryer conditions (Bento et al, 2016).…”

Section: Implications For Exposure and Risk Assessmentmentioning

confidence: 99%

“…The half-life times of glyphosate and AMPA, also of importance in the respect of the amounts found in soils, are highly variable, ranging from a few days up to one or two years, depending on edaphic and environmental conditions, namely temperature and soil moisture (Bento et al, 2016;EFSA, 2013). AMPA is more persistent than glyphosate, and the degradation of both compounds is slower at colder and dryer conditions (Bento et al, 2016). The drier soils in southern EU might then explain the lower AMPA propotion found there.…”

Section: Implications For Exposure and Risk Assessmentmentioning

confidence: 99%

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Distribution of glyphosate and aminomethylphosphonic acid (AMPA) in agricultural topsoils of the European Union

Silva

Montanarella

Jones

et al. 2018

Science of The Total Environment

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298

165

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• Data on occurrence and levels of glyphosate residues in EU soils is very limited.• Glyphosate and its metabolite AMPA were tested in 317 EU agricultural topsoils.• 21% of the tested EU topsoils contained glyphosate, and 42% contained AMPA.• Both glyphosate and AMPA had a maximum concentration in soil of 2 mg kg Approval for glyphosate-based herbicides in the European Union (EU) is under intense debate due to concern about their effects on the environment and human health. The occurrence of glyphosate residues in European water bodies is rather well documented whereas only few, fragmented and outdated information is available for European soils. We provide the first large-scale assessment of distribution (occurrence and concentrations) of glyphosate and its main metabolite aminomethylphosphonic acid (AMPA) in EU agricultural topsoils, and estimate their potential spreading by wind and water erosion. Glyphosate and/or AMPA were present in 45% of the topsoils collected, originating from eleven countries and six crop systems, with a maximum concentration of 2 mg kg −1. Several glyphosate and AMPA hotspots were identified across the EU. Soil loss rates (obtained from recently derived European maps) were used to estimate the potential export of glyphosate and AMPA by wind and water erosion. The estimated exports, result of a conceptually simple model, clearly indicate that particulate transport can contribute to human and environmental exposure to herbicide residues. Residue threshold values in soils are urgently needed to define potential risks for soil health and off site effects related to export by wind and water erosion.

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Section: Glyphosate and Ampa Analysismentioning

confidence: 99%

Section: Implications For Exposure and Risk Assessmentmentioning

confidence: 99%

Section: Implications For Exposure and Risk Assessmentmentioning

confidence: 99%

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Distribution of glyphosate and aminomethylphosphonic acid (AMPA) in agricultural topsoils of the European Union

Silva

Montanarella

Jones

et al. 2018

Science of The Total Environment

Self Cite

298

165

View full text Add to dashboard Cite

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“…2 Despite the increasing frequency of glyphosate herbicide use, monitoring of residues in soils and the relative effects on the environment is not consistently practiced. 3 Glyphosate may be applied one to two times during crop production at doses between 0.6 to 0.9kg ha -1 in the U.S. but applications may increase annually due to development of resistance to glyphosate by weeds. 3 Because glyphosate herbicides have been consistently applied to glyphosateresistant crops in production fields over the past 20years, it is not surprising that glyphosate is now detected in the environment.…”

mentioning

confidence: 99%

“…3 Glyphosate may be applied one to two times during crop production at doses between 0.6 to 0.9kg ha -1 in the U.S. but applications may increase annually due to development of resistance to glyphosate by weeds. 3 Because glyphosate herbicides have been consistently applied to glyphosateresistant crops in production fields over the past 20years, it is not surprising that glyphosate is now detected in the environment. Indeed, glyphosate and its primary metabolite aminomethylphosphonic acid (AMPA) are now frequently detected in ground and surface waters and in some marine environments.…”

mentioning

confidence: 99%

Soil and Environmental Health after Twenty Years of Intensive Use of Glyphosate

Kremer¹

2017

APAR

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Glyphosate and aminomethylphosphonic acid contents in field crops soils under various weed management practices

Samson‐Brais

Lucotte

Moingt

et al. 2022

Agrosystems Geosci & Env

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To avoid yield loss in field crops associated with glyphosate‐resistant weed and changes in their population dynamics, repeated applications of glyphosate‐based herbicides (GBH) and combination with other herbicides are weed management practices (WMP) increasingly used worldwide, and particularly so in southern Quebec (Canada). These practices affect soil biological activity as well as soil functions but could also influence glyphosate and its main degradation product, the aminomethylphosphonic acid (AMPA), persistence. This study was conducted in corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] field crops to evaluate the effects of single vs. repeated GBH applications, with or without the addition of other herbicides, on glyphosate and AMPA persistence in soils throughout a growing season. In corn plots, the highest glyphosate content (0.11 mg kg–1) was observed following two GBH applications combined with other herbicides (i.a. S‐metolachlor and mesotrione). In soybean plots, the highest glyphosate content (0.18 mg kg–1) was also measured following two GBH applications combined with other herbicides (i.a. imazethapyr and chlorimuron). AMPA contents in corn plots soils were similar whatever WMP employed, whereas differences were observed in soybean plots according to the WMP. Soybean plots thus seemed more responsive to variation in weed management practices than corn plots. This study highlights the persistence of glyphosate and AMPA in agricultural soils at least 8 wk after the last GBH application.

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Persistence of glyphosate and aminomethylphosphonic acid in loess soil under different combinations of temperature, soil moisture and light/darkness

Cited by 199 publications

References 35 publications

Distribution of glyphosate and aminomethylphosphonic acid (AMPA) in agricultural topsoils of the European Union

Distribution of glyphosate and aminomethylphosphonic acid (AMPA) in agricultural topsoils of the European Union

Soil and Environmental Health after Twenty Years of Intensive Use of Glyphosate

Glyphosate and aminomethylphosphonic acid contents in field crops soils under various weed management practices

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