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Kang S, Li L, Ren X, Zhang M, Li W, Chen Z. Occurrence and fate characteristics of isoproturon from garlic cultivation to household processing: Implication for human exposure. JOURNAL OF HAZARDOUS MATERIALS 2023; 448:130936. [PMID: 36764256 DOI: 10.1016/j.jhazmat.2023.130936] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/18/2023] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
The fate characteristics of isoproturon (IPU) from garlic cultivation to household processing was elucidated by a tracing UHPLC-MS/MS based on the favorable storage stability. The occurrence, pharmacokinetics dissipation and terminal magnitude of IPU were reflected by parameters including original deposition of 31-170 μg kg-1, half-lives of 11.5-19.4 d, and final concentrations of <1.0-250.6 μg kg-1. The processing factors of IPU were further clarified in terms of washing, stir-frying and pickling, with processing factors of 0.008-0.828. The chronic dietary risks (%ADI) were assessed as 1.516-5.242 %, whereas the short-term exposures from green garlic should be continuously emphasized over 99th percentile with unacceptable %ARfD of 147.144-5074.018 %. The acute and chronic risk magnitude significantly decreased by a factor 2.0-125.0 and 2.2-3.3 from raw garlic crops to processed products, respectively. What was noteworthy was the unacceptable acute risks of IPU from green garlic at 99.9th percentile even after a series of processing procedures.
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Affiliation(s)
- Shanshan Kang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China; School of Life Sciences, Hebei University, Baoding 071002, PR China
| | - Li Li
- College of Plant Protection, Shanxi Agricultural University, Taiyuan 030031, PR China
| | - Xin Ren
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, PR China
| | - Minghao Zhang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Wei Li
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Zenglong Chen
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China.
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Nguyen NK, Dörfler U, Welzl G, Munch JC, Schroll R, Suhadolc M. Large variation in glyphosate mineralization in 21 different agricultural soils explained by soil properties. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 627:544-552. [PMID: 29426177 DOI: 10.1016/j.scitotenv.2018.01.204] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 01/18/2018] [Accepted: 01/20/2018] [Indexed: 06/08/2023]
Abstract
Glyphosate and its main metabolite aminomethylphosphonic acid (AMPA) have frequently been detected in surface water and groundwaters. Since adequate glyphosate mineralization in soil may reduce its losses to environment, improved understanding of site specific factors underlying pesticide mineralization in soils is needed. The aim of this study was to investigate the relationship between soil properties and glyphosate mineralization. To establish a sound basis for resilient correlations, the study was conducted with a large number of 21 agricultural soils, differing in a variety of soil parameters, such as soil texture, soil organic matter content, pH, exchangeable ions etc. The mineralization experiments were carried out with 14C labelled glyphosate at a soil water tension of -15 kPa and at a soil density of 1.3 g cm-3 at 20 ± 1 °C for an incubation period of 32 days. The results showed that the mineralization of glyphosate in different agricultural soils varied to a great extent, from 7 to 70% of the amount initially applied. Glyphosate mineralization started immediately after application, the highest mineralization rates were observed within the first 4 days in most of the 21 soils. Multiple regression analysis revealed exchangeable acidity (H+ and Al3+), exchangeable Ca2+ ions and ammonium lactate extractable K to be the key soil parameters governing glyphosate mineralization in the examined soils. A highly significant negative correlation between mineralized glyphosate and NaOH-extractable residues (NaOH-ER) in soils strongly suggests that NaOH-ER could be used as a simple and reliable parameter for evaluating the glyphosate mineralization capacity. The NaOH-ER were composed of glyphosate, unknown 14C-residues, and AMPA (12%-65%, 3%-34%, 0%-11% of applied 14C, respectively). Our results highlighted the influential role of soil exchangeable acidity, which should therefore be considered in pesticide risk assessments and management to limit efficiently the environmental transfers of glyphosate.
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Affiliation(s)
- Nghia Khoi Nguyen
- Cantho University, Department of Soil Science, Cantho City, Viet Nam; Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), 85764 Neuherberg, Germany
| | - Ulrike Dörfler
- Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), 85764 Neuherberg, Germany
| | - Gerhard Welzl
- Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), 85764 Neuherberg, Germany
| | - Jean Charles Munch
- Technische Universität München, Wissenschaftszentrum Weihenstephan für Ernährung, Landnutzung und Umwelt, 85354 Freising, Germany
| | - Reiner Schroll
- Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), 85764 Neuherberg, Germany
| | - Marjetka Suhadolc
- University of Ljubljana, Biotechnical Faculty, Jamnikarjeva 101, 1000 Ljubljana, Slovenia.
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Zhu X, Schroll R, Dörfler U, Chen B. Inoculation of soil with an Isoproturon degrading microbial community reduced the pool of "real non-extractable" Isoproturon residues. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 149:182-189. [PMID: 29175344 DOI: 10.1016/j.ecoenv.2017.11.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 11/09/2017] [Accepted: 11/16/2017] [Indexed: 06/07/2023]
Abstract
During pesticides degradation, biogenic non-extractable residues ("apparent NER") may not share the same environmental fate and risks with the "real NER" that are bound to soil matrix. It is not clear how microbial community (MC) inoculation for pesticides degradation would influence the NER composition. To investigate degradation efficiency of pesticides Isoproturon (IPU) and NER composition following MC inoculation, clay particles harboring MC that contains the IPU degrading strain, Sphingomonas sp., were inoculated into soil receiving 14C-labeled IPU addition. Mineralization of IPU was greatly enhanced with MC inoculation that averagely 55.9% of the applied 14C-IPU was consumed up into 14CO2 during 46 days soil incubation. Isoproturon degradation was more thorough with MC than that in the control: much less amount of metabolic products (4.6% of applied IPU) and NER (35.4%) formed in MC treatment, while the percentages were respectively 30.3% for metabolites and 49.8% for NER in the control. Composition of NER shifted with MC inoculation, that relatively larger amount of IPU was incorporated into the biogenic "apparent NER" in comparison with "real NER". Besides its well-recognized role on enhancing mineralization, MC inoculation with clay particles benefits soil pesticides remediation in term of reducing "real NER" formation, which has been previously underestimated.
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Affiliation(s)
- Xiaomin Zhu
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, China; Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), 85764 Neuherberg, Germany; University of Chinese Academy of Sciences, Beijing 100036, China.
| | - Reiner Schroll
- Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), 85764 Neuherberg, Germany
| | - Ulrike Dörfler
- Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), 85764 Neuherberg, Germany
| | - Baoliang Chen
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, China.
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Domínguez-Garay A, Quejigo JR, Dörfler U, Schroll R, Esteve-Núñez A. Bioelectroventing: an electrochemical-assisted bioremediation strategy for cleaning-up atrazine-polluted soils. Microb Biotechnol 2017. [PMID: 28643961 PMCID: PMC5743802 DOI: 10.1111/1751-7915.12687] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
The absence of suitable terminal electron acceptors (TEA) in soil might limit the oxidative metabolism of environmental microbial populations. Bioelectroventing is a bioelectrochemical strategy that aims to enhance the biodegradation of a pollutant in the environment by overcoming the electron acceptor limitation and maximizing metabolic oxidation. Microbial electroremediating cells (MERCs) are devices that can perform such a bioelectroventing. We also report an overall profile of the 14 C-ATR metabolites and 14 C mass balance in response to the different treatments. The objective of this work was to use MERC principles, under different configurations, to stimulate soil bacteria to achieve the complete biodegradation of the herbicide 14 C-atrazine (ATR) to 14 CO2 in soils. Our study concludes that using electrodes at a positive potential [+600 mV (versus Ag/AgCl)] ATR mineralization was enhanced by 20-fold when compared to natural attenuation in electrode-free controls. Furthermore, ecotoxicological analysis of the soil after the bioelectroventing treatment revealed an effective clean-up in < 20 days. The impact of electrodes on soil bioremediation suggests a promising future for this emerging environmental technology.
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Affiliation(s)
| | - Jose Rodrigo Quejigo
- University of Alcalá, Alcalá de Henares, Madrid, Spain.,Helmholtz Zentrum München, Múnich, Germany
| | | | | | - Abraham Esteve-Núñez
- University of Alcalá, Alcalá de Henares, Madrid, Spain.,IMDEA-WATER Parque Tecnológico de la Universidad de Alcalá, Madrid, Spain
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Alberto D, Serra AA, Sulmon C, Gouesbet G, Couée I. Herbicide-related signaling in plants reveals novel insights for herbicide use strategies, environmental risk assessment and global change assessment challenges. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 569-570:1618-1628. [PMID: 27318518 DOI: 10.1016/j.scitotenv.2016.06.064] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 06/09/2016] [Accepted: 06/10/2016] [Indexed: 05/13/2023]
Abstract
Herbicide impact is usually assessed as the result of a unilinear mode of action on a specific biochemical target with a typical dose-response dynamics. Recent developments in plant molecular signaling and crosstalk between nutritional, hormonal and environmental stress cues are however revealing a more complex picture of inclusive toxicity. Herbicides induce large-scale metabolic and gene-expression effects that go far beyond the expected consequences of unilinear herbicide-target-damage mechanisms. Moreover, groundbreaking studies have revealed that herbicide action and responses strongly interact with hormone signaling pathways, with numerous regulatory protein-kinases and -phosphatases, with metabolic and circadian clock regulators and with oxidative stress signaling pathways. These interactions are likely to result in mechanisms of adjustment that can determine the level of sensitivity or tolerance to a given herbicide or to a mixture of herbicides depending on the environmental and developmental status of the plant. Such regulations can be described as rheostatic and their importance is discussed in relation with herbicide use strategies, environmental risk assessment and global change assessment challenges.
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Affiliation(s)
- Diana Alberto
- UMR 6553 Ecosystems-Biodiversity-Evolution, Université de Rennes 1/CNRS, Campus de Beaulieu, Bâtiment 14A, F-35042 Rennes Cedex, France
| | - Anne-Antonella Serra
- UMR 6553 Ecosystems-Biodiversity-Evolution, Université de Rennes 1/CNRS, Campus de Beaulieu, Bâtiment 14A, F-35042 Rennes Cedex, France
| | - Cécile Sulmon
- UMR 6553 Ecosystems-Biodiversity-Evolution, Université de Rennes 1/CNRS, Campus de Beaulieu, Bâtiment 14A, F-35042 Rennes Cedex, France
| | - Gwenola Gouesbet
- UMR 6553 Ecosystems-Biodiversity-Evolution, Université de Rennes 1/CNRS, Campus de Beaulieu, Bâtiment 14A, F-35042 Rennes Cedex, France
| | - Ivan Couée
- UMR 6553 Ecosystems-Biodiversity-Evolution, Université de Rennes 1/CNRS, Campus de Beaulieu, Bâtiment 14A, F-35042 Rennes Cedex, France.
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Rodrigo Quejigo J, Dörfler U, Schroll R, Esteve-Núñez A. Stimulating soil microorganisms for mineralizing the herbicide isoproturon by means of microbial electroremediating cells. Microb Biotechnol 2016; 9:369-80. [PMID: 26880137 PMCID: PMC4835573 DOI: 10.1111/1751-7915.12351] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 01/08/2016] [Accepted: 01/10/2016] [Indexed: 11/30/2022] Open
Abstract
The absence of suitable terminal electron acceptors (TEA) in soil might limit the oxidative metabolism of environmental microbial populations. Microbial electroremediating cells (MERCs) consist in a variety of bioelectrochemical devices that aim to overcome electron acceptor limitation and maximize metabolic oxidation with the purpose of enhancing the biodegradation of a pollutant in the environment. The objective of this work was to use MERCs principles for stimulating soil bacteria to achieve the complete biodegradation of the herbicide 14C‐isoproturon (IPU) to 14CO2 in soils. Our study concludes that using electrodes at a positive potential [+600 mV (versus Ag/AgCl)] enhanced the mineralization by 20‐fold respect the electrode‐free control. We also report an overall profile of the 14C‐IPU metabolites and a 14C mass balance in response to the different treatments. The remarkable impact of electrodes on the microbial activity of natural communities suggests a promising future for this emerging environmental technology that we propose to name bioelectroventing.
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Affiliation(s)
- Jose Rodrigo Quejigo
- University of Alcalá, Alcalá de Henares, Madrid, Spain.,Helmholtz Zentrum München, Múnich, Germany
| | | | | | - Abraham Esteve-Núñez
- University of Alcalá, Alcalá de Henares, Madrid, Spain.,IMDEA-WATER Parque Tecnológico de Alcalá, Madrid, Spain
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Reduced leaching of the herbicide MCPA after bioaugmentation with a formulated and stored Sphingobium sp. Biodegradation 2013; 25:291-300. [PMID: 23982656 DOI: 10.1007/s10532-013-9660-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Accepted: 08/16/2013] [Indexed: 10/26/2022]
Abstract
The use of pesticides on sandy soils and on many non-agricultural areas entails a potentially high risk of water contamination. This study examined leaching of the herbicide 4-chloro-2-methylphenoxyacetic acid (MCPA) after bioaugmentation in sand with differently formulated and stored Sphingobium sp. T51 and at different soil moisture contents. Dry formulations of Sphingobium sp. T51 were achieved by either freeze drying or fluidised bed drying, with high initial cell viability of 67-85 %. Storage stability of T51 cells was related to formulation excipient/carrier and storage conditions. Bacterial viability in the fluidised bed-dried formulations stored at 25 °C under non-vacuum conditions was poor, with losses of at least 97 % within a month. The freeze-dried formulations could be stored substantially longer, with cell survival rates of 50 %, after 6 months of storage at the same temperature under partial vacuum. Formulated and long-term stored Sphingobium cells maintained their MCPA degradation efficacy and reduced MCPA leaching as efficiently as freshly cultivated cells, by at least 73 % when equal amounts of viable cells were used. The importance of soil moisture for practical field bioaugmentation techniques is discussed.
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