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Ding Y, Zheng H, Chen Z, Gao Y, Xiao K, Gao Z, Han Z, Xue Y, Cai M. Ocean current redistributed the currently using Organoamine Pesticides in Arctic summer water. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 886:163979. [PMID: 37164088 DOI: 10.1016/j.scitotenv.2023.163979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 04/29/2023] [Accepted: 05/02/2023] [Indexed: 05/12/2023]
Abstract
In a comprehensive study on the presence and distribution of Currently Using Organoamine Pesticides (CUOAPs) in the Arctic Ocean, this study collected and analyzed 36 surface seawater samples during the summer of 2021. The study detected 36 CUOAPs, 17 of these compounds at levels exceeding the Method Detection Limits (MDLs). Concentrations of CUOAPs ranged from 0.11 to 2.94 ng/L, exhibiting an average of 1.83 ± 0.83 ng/L. Spatial distribution analysis revealed lower CUOAP concentrations in the central Arctic Ocean, with Cycloate constituting the most abundant component (23.66 %). The investigation identified terrestrial inputs and long-range atmospheric transport as potential sources of CUOAPs in the Arctic Ocean region. The origins of individual CUOAPs appeared to be associated with application procedures and their propensity for co-occurrence at low latitudes. The study also examined the role of ocean currents in the transport and redistribution of CUOAPs in surface seawater across different regions. While ocean currents played a significant role, the influence of sea ice cover on CUOAP distribution was minimal. An ecological risk assessment analysis underscored the need for regional attention to the presence of CUOAPs in the Arctic Ocean.
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Affiliation(s)
- Yunhao Ding
- School of Environmental & Safety Engineering, Changzhou University, Jiangsu, Changzhou 213164, China; Ministry of Natural Resources Key Laboratory for Polar Science, Polar Research Institute of China, 451 Jinqiao Road, Shanghai 200136, China
| | - Hongyuan Zheng
- Ocean Institute, Northwestern Polytechnical University, Jiangsu, Suzhou 215400, China; Ministry of Natural Resources Key Laboratory for Polar Science, Polar Research Institute of China, 451 Jinqiao Road, Shanghai 200136, China; Antarctic Great Wall Ecology National Observation and Research Station, Polar Research Institute of China, 1000 Xuelong Road, Shanghai 201209, China.
| | - Zhiyi Chen
- College of Civil Engineering and Architecture, Zhejiang University of Water Resources and Electric Power, Zhejiang 310018, China; Ministry of Natural Resources Key Laboratory for Polar Science, Polar Research Institute of China, 451 Jinqiao Road, Shanghai 200136, China
| | - Yuan Gao
- Ministry of Natural Resources Key Laboratory for Polar Science, Polar Research Institute of China, 451 Jinqiao Road, Shanghai 200136, China.
| | - Kaiyan Xiao
- Ministry of Natural Resources Key Laboratory for Polar Science, Polar Research Institute of China, 451 Jinqiao Road, Shanghai 200136, China; College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
| | - Zhiwei Gao
- Ministry of Natural Resources Key Laboratory for Polar Science, Polar Research Institute of China, 451 Jinqiao Road, Shanghai 200136, China; College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
| | - Zheyi Han
- Ministry of Natural Resources Key Laboratory for Polar Science, Polar Research Institute of China, 451 Jinqiao Road, Shanghai 200136, China; College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
| | - Yingang Xue
- School of Environmental & Safety Engineering, Changzhou University, Jiangsu, Changzhou 213164, China.
| | - Minghong Cai
- Ministry of Natural Resources Key Laboratory for Polar Science, Polar Research Institute of China, 451 Jinqiao Road, Shanghai 200136, China; Antarctic Great Wall Ecology National Observation and Research Station, Polar Research Institute of China, 1000 Xuelong Road, Shanghai 201209, China; School of Oceanography, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030, China.
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Takeshita V, Carvalho LB, Galhardi JA, Munhoz-Garcia GV, Pimpinato RF, Oliveira HC, Tornisielo VL, Fraceto LF. Development of a Preemergent Nanoherbicide: From Efficiency Evaluation to the Assessment of Environmental Fate and Risks to Soil Microorganisms. ACS NANOSCIENCE AU 2022; 2:307-323. [PMID: 37102067 PMCID: PMC10125138 DOI: 10.1021/acsnanoscienceau.1c00055] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Nanoparticles based on biodegradable polymers have been shown to be excellent herbicide carriers, improving weed control and protecting the active ingredient in the crop fields. Metribuzin is often found in natural waters, which raises environmental concerns. Nanoencapsulation of this herbicide could be an alternative to reduce its losses to the environment and improve gains in its efficiency. However, there is a paucity of information about the behavior of nanoformulations of herbicides in environmental matrices. In this study, the stability of nanoencapsulated metribuzin in polymeric nanoparticles (nanoMTZ) was verified over time, as well as its dissipation in different soils, followed by the effects on soil enzymatic activity. The physiological parameters and control effects of nanoMTZ on Ipomoea grandifolia plants were investigated. No differences were verified in the half-life of nanoencapsulated metribuzin compared to a commercial formulation of the herbicide. Moreover, no suppressive effects on soil enzymatic activities were observed. The retention of nanoMTZ in the tested soils was lower compared to its commercial analogue. However, the mobility of nanoencapsulated metribuzin was not greatly increased, reflecting a low risk of groundwater contamination. Weed control was effective even at the lowest dose of nanoMTZ (48 g a.i. ha-1), which was consistent with the higher efficiency of nanoMTZ compared to the conventional herbicide in inhibiting PSII activity and decreasing pigment levels. Overall, we verified that nanoMTZ presented a low environmental risk, with increased weed control.
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Affiliation(s)
- Vanessa Takeshita
- Center
of Nuclear Energy in Agriculture, University
of São Paulo, Av. Centenário 303, 13400-970 Piracicaba, SP, Brazil
| | - Lucas Bragança Carvalho
- Institute
of Science and Technology, São Paulo
State University (UNESP), Av. Três de Março
511, 18087-180 Sorocaba, SP, Brazil
| | - Juliana Aparecida Galhardi
- Institute
of Science and Technology, São Paulo
State University (UNESP), Av. Três de Março
511, 18087-180 Sorocaba, SP, Brazil
| | | | - Rodrigo Floriano Pimpinato
- Center
of Nuclear Energy in Agriculture, University
of São Paulo, Av. Centenário 303, 13400-970 Piracicaba, SP, Brazil
| | - Halley Caixeta Oliveira
- Department
of Animal and Plant Biology, State University
of Londrina, PR 445,
km 380, 86057-970 Londrina, PR, Brazil
| | - Valdemar Luiz Tornisielo
- Center
of Nuclear Energy in Agriculture, University
of São Paulo, Av. Centenário 303, 13400-970 Piracicaba, SP, Brazil
| | - Leonardo Fernandes Fraceto
- Institute
of Science and Technology, São Paulo
State University (UNESP), Av. Três de Março
511, 18087-180 Sorocaba, SP, Brazil
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Nowak KM, Miltner A, Poll C, Kandeler E, Streck T, Pagel H. Plant litter enhances degradation of the herbicide MCPA and increases formation of biogenic non-extractable residues in soil. ENVIRONMENT INTERNATIONAL 2020; 142:105867. [PMID: 32585504 DOI: 10.1016/j.envint.2020.105867] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/22/2020] [Accepted: 06/03/2020] [Indexed: 06/11/2023]
Abstract
Amendment of soils with plant residues is common practice for improving soil quality. In addition to stimulated microbial activity, the supply of fresh soluble organic (C) from litter may accelerate the microbial degradation of chemicals in soils. Therefore, the aim of this study was to test whether the maize litter enhances degradation of 4-chloro-2-methylphenoxyacetic acid (MCPA) and increases formation of non-toxic biogenic non-extractable residues (bioNERs). Soil was amended with 13C6-MCPA and incubated with or without litter addition on the top. Three soil layers were sampled with increasing distance from the top: 0-2 mm, 2-5 mm and 5-20 mm; and the mass balance of 13C6-MCPA transformation determined. Maize litter promoted microbial activity, mineralization of 13C6-MCPA and bioNER formation in the upper two layers (0-2 and 2-5 mm). The mineralization of 13C6-MCPA in soil with litter increased to 27% compared to only 6% in the control. Accordingly, maize addition reduced the amount of extractable residual MCPA in soil from 77% (control) to 35% of initially applied 13C6-MCPA. While non-extractable residues (NERs) were <6% in control soil, litter addition raised NERs to 21%. Thereby, bioNERs comprised 14% of 13C6-MCPA equivalents. We found characteristic differences of bioNER formation with distance to litter. While total NERs in soil at a distance of 2-5 mm were mostly identified as 13C-bioNERs (97%), only 45-46% of total NERs were assigned to bioNERs in the 0-2 and 5-20 mm layers. Phospholipid fatty acid analysis indicated that fungi and Gram-negative bacteria were mainly involved in MCPA degradation. Maize-C particularly stimulated fungal activity in the adjacent soil, which presumably facilitated non-biogenic NER formation. The plant litter accelerated formation of both non-toxic bioNERs and non-biogenic NERs. More studies on the structural composition of non-biogenic NERs with toxicity potential are needed for future recommendations on litter addition in agriculture.
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Affiliation(s)
- Karolina M Nowak
- Technische Universität Berlin, Institute of Biotechnology, Chair of Geobiotechnology, Ackerstraße 76, 13355 Berlin, Germany; Helmholtz-Centre for Environmental Research - UFZ, Department of Environmental Biotechnology, Permoserstr. 15, 04318 Leipzig, Germany.
| | - Anja Miltner
- Helmholtz-Centre for Environmental Research - UFZ, Department of Environmental Biotechnology, Permoserstr. 15, 04318 Leipzig, Germany
| | - Christian Poll
- University of Hohenheim, Institute of Soil Science and Land Evaluation, Department of Soil Biology, Emil-Wolff-Str. 27, 70599 Stuttgart, Germany
| | - Ellen Kandeler
- University of Hohenheim, Institute of Soil Science and Land Evaluation, Department of Soil Biology, Emil-Wolff-Str. 27, 70599 Stuttgart, Germany
| | - Thilo Streck
- University of Hohenheim, Institute of Soil Science and Land Evaluation, Department of Biogeophysics, Emil-Wolff-Str. 27, 70599 Stuttgart, Germany
| | - Holger Pagel
- University of Hohenheim, Institute of Soil Science and Land Evaluation, Department of Biogeophysics, Emil-Wolff-Str. 27, 70599 Stuttgart, Germany
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Wirsching J, Pagel H, Ditterich F, Uksa M, Werneburg M, Zwiener C, Berner D, Kandeler E, Poll C. Biodegradation of Pesticides at the Limit: Kinetics and Microbial Substrate Use at Low Concentrations. Front Microbiol 2020; 11:2107. [PMID: 32983068 PMCID: PMC7481373 DOI: 10.3389/fmicb.2020.02107] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 08/10/2020] [Indexed: 11/15/2022] Open
Abstract
The objective of our study was to test whether limited microbial degradation at low pesticide concentrations could explain the discrepancy between overall degradability demonstrated in laboratory tests and their actual persistence in the environment. Studies on pesticide degradation are often performed using unrealistically high application rates seldom found in natural environments. Nevertheless, biodegradation rates determined for higher pesticide doses cannot necessarily be extrapolated to lower concentrations. In this context, we wanted to (i) compare the kinetics of pesticide degradation at different concentrations in arable land and (ii) clarify whether there is a concentration threshold below which the expression of the functional genes involved in the degradation pathway is inhibited without further pesticide degradation taking place. We set up an incubation experiment for four weeks using 14C-ring labeled 2-methyl-4-chlorophenoxyacetic acid (MCPA) as a model compound in concentrations from 30 to 20,000 μg kg–1 soil. To quantify the abundance of putative microorganisms involved in MCPA degradation and their degradation activity, tfdA gene copy numbers (DNA) and transcripts (mRNA) were determined by quantitative real-time PCR. Mineralization dynamics of MCPA derived-C were analyzed by monitoring 14CO2 production and 14C assimilation by soil microorganisms. We identified two different concentration thresholds for growth and activity with respect to MCPA degradation using tfdA gene and mRNA transcript abundance as growth and activity indices, respectively. The tfdA gene expression started to increase between 1,000 and 5,000 μg MCPA kg–1 dry soil, but an actual increase in tfdA sequences could only be determined at a concentration of 20,000 μg. Accordingly, we observed a clear shift from catabolic to anabolic utilization of MCPA-derived C in the concentration range of 1,000 to 5,000 μg kg–1. Concentrations ≥1,000 μg kg–1 were mainly associated with delayed mineralization, while concentrations ≤1,000 μg kg–1 showed rapid absolute dissipation. The persistence of pesticides at low concentrations cannot, therefore, be explained by the absence of functional gene expression. Nevertheless, significant differences in the degradation kinetics of MCPA between low and high pesticide concentrations illustrate the need for studies investigating pesticide degradation at environmentally relevant concentrations.
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Affiliation(s)
- Johannes Wirsching
- Department of Soil Biology, Institute of Soil Science and Land Evaluation, University of Hohenheim, Stuttgart, Germany
| | - Holger Pagel
- Department of Soil Physics, Institute of Soil Science and Land Evaluation, University of Hohenheim, Stuttgart, Germany
| | - Franziska Ditterich
- Department of Soil Biology, Institute of Soil Science and Land Evaluation, University of Hohenheim, Stuttgart, Germany
| | - Marie Uksa
- Department of Soil Biology, Institute of Soil Science and Land Evaluation, University of Hohenheim, Stuttgart, Germany
| | - Martina Werneburg
- Department of Environmental Analytical Chemistry, Institute of Applied Geoscience, University of Tübingen, Tübingen, Germany
| | - Christian Zwiener
- Department of Environmental Analytical Chemistry, Institute of Applied Geoscience, University of Tübingen, Tübingen, Germany
| | - Doreen Berner
- Department of Soil Biology, Institute of Soil Science and Land Evaluation, University of Hohenheim, Stuttgart, Germany
| | - Ellen Kandeler
- Department of Soil Biology, Institute of Soil Science and Land Evaluation, University of Hohenheim, Stuttgart, Germany
| | - Christian Poll
- Department of Soil Biology, Institute of Soil Science and Land Evaluation, University of Hohenheim, Stuttgart, Germany
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Biancolillo A, Maggi MA, Bassi S, Marini F, D’Archivio AA. Retention Modelling of Phenoxy Acid Herbicides in Reversed-Phase HPLC under Gradient Elution. Molecules 2020; 25:molecules25061262. [PMID: 32168813 PMCID: PMC7144001 DOI: 10.3390/molecules25061262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 03/01/2020] [Accepted: 03/11/2020] [Indexed: 12/02/2022] Open
Abstract
Phenoxy acid herbicides are used worldwide and are potential contaminants of drinking water. Reversed phase high-performance liquid chromatography (RP-HPLC) is commonly used to monitor phenoxy acid herbicides in water samples. RP-HPLC retention of phenoxy acids is affected by both mobile phase composition and pH, but the synergic effect of these two factors, which is also dependent on the structure and pKa of solutes, cannot be easily predicted. In this paper, to support the setup of RP-HPLC analysis of phenoxy acids under application of linear mobile phase gradients we modelled the simultaneous effect of the molecular structure and the elution conditions (pH, initial acetonitrile content in the eluent and gradient slope) on the retention of the solutes. In particular, the chromatographic conditions and the molecular descriptors collected on the analyzed compounds were used to estimate the retention factor k by Partial Least Squares (PLS) regression. Eventually, a variable selection approach, Genetic Algorithms, was used to reduce the model complexity and allow an easier interpretation. The PLS model calibrated on the retention data of 15 solutes and successively tested on three external analytes provided satisfying and reliable results.
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Affiliation(s)
- Alessandra Biancolillo
- Dipartimento di Scienze Fisiche e Chimiche, Università degli Studi dell’Aquila, Via Vetoio, Coppito, 67100 L’Aquila (AQ), Italy;
| | - Maria Anna Maggi
- Hortus Novus srl, Via Campo Sportivo 2, Canistro, 67100 L’Aquila, Italy;
| | - Sebastian Bassi
- Dipartimento di Chimica, Università degli Studi di Roma “La Sapienza”, Piazzale Aldo Moro 5, 00185 Roma, Italy; (S.B.); (F.M.)
| | - Federico Marini
- Dipartimento di Chimica, Università degli Studi di Roma “La Sapienza”, Piazzale Aldo Moro 5, 00185 Roma, Italy; (S.B.); (F.M.)
| | - Angelo Antonio D’Archivio
- Dipartimento di Scienze Fisiche e Chimiche, Università degli Studi dell’Aquila, Via Vetoio, Coppito, 67100 L’Aquila (AQ), Italy;
- Correspondence:
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Gómez S, Fernández-Rodríguez D, Peña D, Albarrán Á, Rozas MÁ, López-Piñeiro A. Olive mill sludge may reduce water contamination by 4-chloro-2-methylphenoxyacetic acid (MCPA) in non-flooding but enhance it in flooding rice cropping agroecosystems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 707:136000. [PMID: 31863981 DOI: 10.1016/j.scitotenv.2019.136000] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 12/02/2019] [Accepted: 12/06/2019] [Indexed: 06/10/2023]
Abstract
A field experiment covering three years was conducted to evaluate how composted olive mill sludge (OS) influenced MCPA's environmental fate in rice soils under six combinations of tillage and irrigation cultivation techniques: tillage and sprinkler irrigation without (TS) or with (TSOS) the addition of OS (80 Mg ha-1), no-tillage and sprinkler irrigation without (NTS) or with (NTSOS) OS, and tillage and continuous flooding without (TF) or with (TFOS) OS. The measurements made in the first and third years after OS application were taken to constitute the "direct" and "residual" effects, respectively. After OS amendment, Kd (partition coefficients) values in the direct year were lower by factors of 1.1, 1.3, and 1.9 in TSOS, NTSOS, and TFOS, respectively, relative to the corresponding unamended soils, and in the residual year by factors of 1.1 and 1.5 in TSOS and NTOS, but greater by a factor of 1.5 in TFOS, than in the corresponding unamended soils, respectively. The dissipation of MCPA was very fast under both anaerobic (t1/2 = 1.80-5.29 d) and aerobic (t1/2 = 2.23-9.42 d) incubation conditions. The field application of OS led to a decrease in MCPA persistence under both incubation conditions, especially in the TF case. However, while under aerobic conditions the half-life (t1/2) decreased after OS addition in the direct and residual years, under anaerobic condition it only decreased in the direct year. While the application of OS in TS and NTS led to less leaching of MCPA, in TF it led to 1.4 and 1.2 times more leaching losses of the herbicide for the direct and residual years, respectively. Therefore, the use of OS in rice production could be considered an effective strategy for reducing water contamination by MCPA in at least the short- and medium-terms after its application, but only under non-flooding crop management regimes irrespective of the tillage practice implemented.
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Affiliation(s)
- Soraya Gómez
- Área de Edafología y Química Agrícola, Facultad de Ciencias - IACYS, Universidad de Extremadura, Avda de Elvas s/n, 06071 Badajoz, Spain
| | - Damián Fernández-Rodríguez
- Área de Edafología y Química Agrícola, Facultad de Ciencias - IACYS, Universidad de Extremadura, Avda de Elvas s/n, 06071 Badajoz, Spain
| | - David Peña
- Área de Edafología y Química Agrícola, Facultad de Ciencias - IACYS, Universidad de Extremadura, Avda de Elvas s/n, 06071 Badajoz, Spain.
| | - Ángel Albarrán
- Área de Producción Vegetal, Escuela de Ingenierías Agrarias - IACYS, Universidad de Extremadura, Ctra de Cáceres, 06071 Badajoz, Spain
| | - María Ángeles Rozas
- Área de Producción Vegetal, Escuela de Ingenierías Agrarias - IACYS, Universidad de Extremadura, Ctra de Cáceres, 06071 Badajoz, Spain
| | - Antonio López-Piñeiro
- Área de Edafología y Química Agrícola, Facultad de Ciencias - IACYS, Universidad de Extremadura, Avda de Elvas s/n, 06071 Badajoz, Spain
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Urach Ferreira PH, Ferguson JC, Reynolds DB, Kruger GR, Irby JT. Droplet size and physicochemical property effects on herbicide efficacy of pre-emergence herbicides in soybean (Glycine max (L.) Merr). PEST MANAGEMENT SCIENCE 2020; 76:737-746. [PMID: 31386276 DOI: 10.1002/ps.5573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 07/28/2019] [Accepted: 08/02/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Unlike post-emergence herbicides (POSTs), little is known about droplet size effect on pre-emergence herbicide (PRE) efficacy. Four nozzle types were used to apply different PRE herbicides on eight soybean fields in Missouri and Mississippi in 2017 and 2018, respectively. Pendimethalin, metribuzin, clomazone, imazethapyr and pyroxasulfone were selected based on their physicochemical characteristics (adsorption, volatility and solubility) and were sprayed using XR11002, ULD12002, TTI6011002, and TTI11002 nozzles. RESULTS The XR nozzle produced the smallest droplet size (DV0.5 ), 204 μm, followed by the ULD, TTI60 and TTI with DV0.5 of 468, 646, and 794 μm, respectively. Droplet size, spray coverage, nozzle type or physicochemical characteristics showed no effect on PRE herbicide efficacy, except in the Monroe County, MS, field, with pendimethalin. The TTI60 twin fan nozzle enhanced pendimethalin weed control (up to 91%) in comparison with pendimethalin sprayed with the TTI nozzle (64%), in a high organic matter (OM) soil composed of large soil clods and high weed pressure. It was hypothesized that improved herbicide penetration assisted by the TTI60 dual fan pattern increased herbicide-moisture contact and clod coverage by the herbicide. Under soils with higher OM content (>2%) pendimethalin weed control was reduced. In soils with low OM (<0.7%), low cation exchange capacity (CEC) (<13.1%) and rainfall of 12.2 mm within 3 days after application, metribuzin also resulted in reduced weed control. CONCLUSION The results indicate that droplet size does not affect PRE herbicide efficacy regardless of physicochemical herbicide properties including adsorption, volatility and solubility. © 2019 Society of Chemical Industry.
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Affiliation(s)
| | - Jason Connor Ferguson
- Department of Plant and Soil Sciences, Mississippi State University, Mississippi State, MS, USA
| | - Daniel B Reynolds
- Department of Plant and Soil Sciences, Mississippi State University, Mississippi State, MS, USA
| | - Greg R Kruger
- Department of Agronomy & Horticulture, University of Nebraska-Lincoln, North Platte, NE, USA
| | - Jon Trenton Irby
- Department of Plant and Soil Sciences, Mississippi State University, Mississippi State, MS, USA
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López-Piñeiro A, Peña D, Albarrán Á, Sánchez-Llerena J, Becerra D, Fernández D, Gómez S. Environmental fate of bensulfuron-methyl and MCPA in aerobic and anaerobic rice-cropping systems. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 237:44-53. [PMID: 30780054 DOI: 10.1016/j.jenvman.2019.02.058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 01/31/2019] [Accepted: 02/10/2019] [Indexed: 05/23/2023]
Abstract
Bensulfuron-methyl (BM) and 4-chloro-2-methylphenoxyacetic acid (MCPA) are herbicides widely used in rice agroecosystems, and are commonly found in their environments, especially in water resources. The objective of this study was to evaluate the sorption-desorption, leaching, and dissipation of BM and MCPA under aerobic and anaerobic rice cropping conditions. For this purpose, a three-year field experiment was conducted in SW Spain using four management systems: aerobic with sprinkler irrigation and tillage (ST), sprinkler irrigation and no-tillage (SNT), long-term sprinkler irrigation and no-tillage (SNTLT), and anaerobic with flooding and tillage (FT). At the end of the experiment, the partition coefficients (Kd-values) in ST were (2.7, 3.1, and 3.9) and (1.2, 1.5, and 1.9) times significantly lower than the values in {SNT, SNTLT, and FT} for BM and MCPA, respectively. Greater sorption was related to lower values of soil pH for both herbicides and to higher contents in humic acids for BM and fulvic acids for MCPA. The persistence was much longer for BM (t1/2 = 26.9-52.1 days) than for MCPA (t1/2 = 1.54-21.1 days) in all management systems, and both herbicides' dissipation rates were generally greater under aerobic than under anaerobic conditions. The mobility of MCPA was much greater than that of BM. Compared with SNT and SNTLT, leaching losses of the applied BM were greater by 51% for ST, and of the applied MCPA by 55% and 99% for ST and FT, respectively. Therefore, only aerobic rice production with no-tillage in the short- or long-terms could be considered as alternative management strategies with which to reduce water contamination by BM and MCPA in rice-growing environments.
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Affiliation(s)
- Antonio López-Piñeiro
- Área de Edafología y Química Agrícola, Facultad de Ciencias - IACYS, Universidad de Extremadura, Avda de Elvas s/n, 06071, Badajoz, Spain
| | - David Peña
- Área de Edafología y Química Agrícola, Facultad de Ciencias - IACYS, Universidad de Extremadura, Avda de Elvas s/n, 06071, Badajoz, Spain.
| | - Ángel Albarrán
- Área de Producción Vegetal, Escuela de Ingenierías Agrarias - IACYS, Universidad de Extremadura, Ctra de Cáceres, 06071, Badajoz, Spain
| | - Javier Sánchez-Llerena
- Área de Edafología y Química Agrícola, Facultad de Ciencias - IACYS, Universidad de Extremadura, Avda de Elvas s/n, 06071, Badajoz, Spain
| | - Daniel Becerra
- Área de Edafología y Química Agrícola, Facultad de Ciencias - IACYS, Universidad de Extremadura, Avda de Elvas s/n, 06071, Badajoz, Spain
| | - Damián Fernández
- Área de Edafología y Química Agrícola, Facultad de Ciencias - IACYS, Universidad de Extremadura, Avda de Elvas s/n, 06071, Badajoz, Spain
| | - Soraya Gómez
- Área de Edafología y Química Agrícola, Facultad de Ciencias - IACYS, Universidad de Extremadura, Avda de Elvas s/n, 06071, Badajoz, Spain
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9
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Munira S, Farenhorst A. Sorption and desorption of glyphosate, MCPA and tetracycline and their mixtures in soil as influenced by phosphate. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2017; 52:887-895. [PMID: 28961057 DOI: 10.1080/03601234.2017.1361773] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Phosphate fertilizers and herbicides such as glyphosate and MCPA are commonly applied to agricultural land, and antibiotics such as tetracycline have been detected in soils following the application of livestock manures and biosolids to agricultural land. Utilizing a range of batch equilibrium experiments, this research examined the competitive sorption interactions of these chemicals in soil. Soil samples (0-15 cm) collected from long-term experimental plots contained Olsen P concentrations in the typical (13 to 20 mg kg-1) and elevated (81 to 99 mg kg-1) range of build-up phosphate in agricultural soils. The elevated Olsen P concentrations in field soils significantly reduced glyphosate sorption up to 50%, but had no significant impact on MCPA and tetracycline sorption. Fresh phosphate additions in the laboratory, introduced to soil prior to, or at the same time with the other chemical applications, had a greater impact on reducing glyphosate sorption (up to 45%) than on reducing tetracycline (up to 13%) and MCPA (up to 8%) sorption. The impact of fresh phosphate additions on the desorption of these three chemicals was also statistically significant, but numerically very small namely < 1% for glyphosate and tetracycline and 3% for MCPA. The presence of MCPA significantly reduced sorption and increased desorption of glyphosate, but only when MCPA was present at concentrations much greater than environmentally relevant and there was no phosphate added to the MCPA solution. Tetracycline addition had no significant effect on glyphosate sorption and desorption in soil. For the four chemicals studied, we conclude that when mixtures of phosphate, herbicides and antibiotics are present in soil, the greatest influence of their competitive interactions is phosphate decreasing glyphosate sorption and the presence of phosphate in solution lessens the potential impact of MCPA on glyphosate sorption. The presence of chemical mixtures in soil solution has an overall greater impact on the sorption than desorption of individual organic chemicals in soil.
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Affiliation(s)
- Sirajum Munira
- a Department of Soil Science , University of Manitoba , Winnipeg, Manitoba , Canada
| | - Annemieke Farenhorst
- a Department of Soil Science , University of Manitoba , Winnipeg, Manitoba , Canada
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Bech TB, Rosenbom AE, Sørensen SR, Jacobsen CS. Conservative tracer bromide inhibits pesticide mineralisation in soil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 222:404-411. [PMID: 28065570 DOI: 10.1016/j.envpol.2016.12.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 12/09/2016] [Accepted: 12/11/2016] [Indexed: 06/06/2023]
Abstract
Bromide is a conservative tracer that is often applied with non-conservative solutes such as pesticides to estimate their retardation in the soil. It has been applied in concentrations of up to 250 g Br L-1, levels at which the growth of single-celled organisms can be inhibited. Bromide applications may therefore affect the biodegradation of non-conservative solutes in soil. The present study investigated the effect of potassium bromide (KBr) on the mineralisation of three pesticides - glyphosate, MCPA and metribuzin - in four agricultural A-horizon soils. KBr was added to soil microcosms at concentrations of 0, 0.5, 2.5 and 5 g Br- L-1 in the soil solution. The study concluded that KBr had a negative effect on pesticide mineralisation. The inhibitory effect varied depending on the KBr concentration, the type of pesticide and the type of soil. Furthermore, 16 S amplicon sequencing revealed that the KBr treatment generally reduced the abundance of bacteroidetes and proteobacteria on both an RNA and DNA level. Therefore, in order to reduce the effect of KBr on the soil bacterial community and consequently also on xenobiotic degradation, it is recommended that KBr be applied in a concentration that does not exceed 0.5 g Br- L-1 in the soil water.
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Affiliation(s)
- Tina B Bech
- Geological Survey of Denmark and Greenland, Department of Geochemistry, Copenhagen, Denmark.
| | - Annette E Rosenbom
- Geological Survey of Denmark and Greenland, Department of Geochemistry, Copenhagen, Denmark
| | | | - Carsten S Jacobsen
- Aarhus University, Department of Environmental Science, Roskilde, Denmark
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11
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Lammoglia SK, Moeys J, Barriuso E, Larsbo M, Marín-Benito JM, Justes E, Alletto L, Ubertosi M, Nicolardot B, Munier-Jolain N, Mamy L. Sequential use of the STICS crop model and of the MACRO pesticide fate model to simulate pesticides leaching in cropping systems. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:6895-6909. [PMID: 27194012 DOI: 10.1007/s11356-016-6842-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 05/05/2016] [Indexed: 06/05/2023]
Abstract
The current challenge in sustainable agriculture is to introduce new cropping systems to reduce pesticides use in order to reduce ground and surface water contamination. However, it is difficult to carry out in situ experiments to assess the environmental impacts of pesticide use for all possible combinations of climate, crop, and soils; therefore, in silico tools are necessary. The objective of this work was to assess pesticides leaching in cropping systems coupling the performances of a crop model (STICS) and of a pesticide fate model (MACRO). STICS-MACRO has the advantage of being able to simulate pesticides fate in complex cropping systems and to consider some agricultural practices such as fertilization, mulch, or crop residues management, which cannot be accounted for with MACRO. The performance of STICS-MACRO was tested, without calibration, from measurements done in two French experimental sites with contrasted soil and climate properties. The prediction of water percolation and pesticides concentrations with STICS-MACRO was satisfactory, but it varied with the pedoclimatic context. The performance of STICS-MACRO was shown to be similar or better than that of MACRO. The improvement of the simulation of crop growth allowed better estimate of crop transpiration therefore of water balance. It also allowed better estimate of pesticide interception by the crop which was found to be crucial for the prediction of pesticides concentrations in water. STICS-MACRO is a new promising tool to improve the assessment of the environmental risks of pesticides used in cropping systems.
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Affiliation(s)
- Sabine-Karen Lammoglia
- UMR ECOSYS, INRA, AgroParisTech, Université Paris-Saclay, 78850, Thiverval-Grignon, France
| | - Julien Moeys
- Department of Soil and Environment, Swedish University of Agricultural Sciences, 750 07, Uppsala, Sweden
| | - Enrique Barriuso
- UMR ECOSYS, INRA, AgroParisTech, Université Paris-Saclay, 78850, Thiverval-Grignon, France
| | - Mats Larsbo
- Department of Soil and Environment, Swedish University of Agricultural Sciences, 750 07, Uppsala, Sweden
| | - Jesús-María Marín-Benito
- UMR ECOSYS, INRA, AgroParisTech, Université Paris-Saclay, 78850, Thiverval-Grignon, France
- IRNASA-CSIC, 40-52 Cordel de Merinas, 37008, Salamanca, Spain
| | - Eric Justes
- UMR AGIR, INRA, Auzeville, 31326, Castanet-Tolosan, France
| | - Lionel Alletto
- Université de Toulouse, INP-Ecole d'ingénieurs de Purpan, UMR AGIR, 75 voie du TOEC, 31076, Toulouse, France
| | - Marjorie Ubertosi
- Université Bourgogne Franche-Comté, AgroSup Dijon, UMR Agroécologie, 26 bd Dr Petitjean, 21079, Dijon, France
| | - Bernard Nicolardot
- Université Bourgogne Franche-Comté, AgroSup Dijon, UMR Agroécologie, 26 bd Dr Petitjean, 21079, Dijon, France
| | | | - Laure Mamy
- UMR ECOSYS, INRA, AgroParisTech, Université Paris-Saclay, 78850, Thiverval-Grignon, France.
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Paszko T, Muszyński P, Materska M, Bojanowska M, Kostecka M, Jackowska I. Adsorption and degradation of phenoxyalkanoic acid herbicides in soils: A review. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2016; 35:271-86. [PMID: 26292078 DOI: 10.1002/etc.3212] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 05/04/2015] [Accepted: 08/14/2015] [Indexed: 05/23/2023]
Abstract
The primary aim of the present review on phenoxyalkanoic acid herbicides-2-(2,4-dichlorophenoxy) acetic acid (2,4-D), 2-(4-chloro-2-methylphenoxy) acetic acid (MCPA), (2R)-2-(2,4-dichlorophenoxy) propanoic acid (dichlorprop-P), (2R)-2-(4-chloro-2-methylphenoxy) propanoic acid (mecoprop-P), 4-(2,4-dichlorophenoxy) butanoic acid (2,4-DB), and 4-(4-chloro-2-methylphenoxy) butanoic acid (MCPB)-was to compare the extent of their adsorption in soils and degradation rates to assess their potential for groundwater contamination. The authors found that adsorption decreased in the sequence of 2,4-DB > 2,4-D > MCPA > dichlorprop-P > mecoprop-P. Herbicides are predominantly adsorbed as anions-on organic matter and through a water-bridging mechanism with adsorbed Fe cations-and their neutral forms are adsorbed mainly on organic matter. Adsorption of anions of 2,4-D, MCPA, dichlorprop-P, and mecoprop-P is inversely correlated with their lipophilicity values, and modeling of adsorption of the compounds based on this relationship is possible. The predominant dissipation mechanism of herbicides in soils is bacterial degradation. The contribution of other mechanisms, such as degradation by fungi, photodegradation, or volatilization from soils, is much smaller. The rate of bacterial degradation decreased in the following order: 2,4-D > MCPA > mecoprop-P > dichlorprop-P. It was found that 2,4-D and MCPA have the lowest potential for leaching into groundwater and that mecoprop-P and dichlorprop-P have slightly higher potential. Because of limited data on adsorption and degradation of 2,4-DB and MCPB, estimation of their leaching potential was not possible.
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Affiliation(s)
- Tadeusz Paszko
- Department of Chemistry, University of Life Sciences, Lublin, Poland
| | - Paweł Muszyński
- Department of Chemistry, University of Life Sciences, Lublin, Poland
| | | | - Monika Bojanowska
- Department of Chemistry, University of Life Sciences, Lublin, Poland
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Santiago CC, Fernández MA, Torres Sánchez RM. Adsorption and characterization of MCPA on DDTMA- and raw-montmorillonite: Surface sites involved. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2016; 51:245-253. [PMID: 26786275 DOI: 10.1080/03601234.2015.1120618] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The 4-chloro-2-methylphenoxy acid (MCPA) is an herbicide widely used in agriculture, which generates a great concern about contamination of surface water and serious consequences for human health and the environment. In this work, the adsorption of MCPA on an Argentine montmorillonite (MMT) and its organo-montmorillonite product (OMMT) with different dodecyl trimethyl ammonium loading was investigated. MCPA adsorption on OMMT increases at least 3 times, with respect to the amount determined for MMT. X-ray diffraction and zeta potential analyses indicated the inner (interlayer) and outer surface participate as adsorption sites. Changes in surface electric charge and also interlayer expansion suggest that dimethyl amine (MCPA counterion) was also surface-adsorbed. The larger aggregates of OMMT, without and with MCPA, obtained compared to those of MMT samples, generate an improvement in the coagulation efficiency. This property, particularly after MCPA retention, allows an easier separation of the solids from the solution and enables a simple technological process application.
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Affiliation(s)
- Cintia C Santiago
- a Technology Center of Mineral Resources and Ceramics , M. B. Gonnet , Argentina
| | - Mariela A Fernández
- a Technology Center of Mineral Resources and Ceramics , M. B. Gonnet , Argentina
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14
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Peña D, López-Piñeiro A, Albarrán Á, Rato-Nunes JM, Sánchez-Llerena J, Becerra D, Ramírez M. De-oiled two-phase olive mill waste may reduce water contamination by metribuzin. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 541:638-645. [PMID: 26437341 DOI: 10.1016/j.scitotenv.2015.09.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 09/03/2015] [Accepted: 09/03/2015] [Indexed: 06/05/2023]
Abstract
The impact of de-oiled two-phase olive mill waste (DW) on the behavior of metribuzin in Mediterranean agricultural soils is evaluated, and the effects of the transformation of organic matter from this waste under field conditions are assessed. Four soils were selected and amended in the laboratory with DW at the rates of 2.5% and 5%. One of these soils was also amended in the field with 27 and 54 Mg ha(-1) of DW for 9 years. Significant increases in metribuzin sorption were observed in all the amended soils. In the laboratory, the 5% DW application rate increased the t1/2 values of metribuzin from 22.9, 35.8, 29.1, and 20.0 d for the original soils to 59.2, 51.1, 45.7, and 29.4d, respectively. This was attributable mainly to the inhibitory effect of the amendment on microbial activity. However, the addition of DW transformed naturally under field conditions decreased the persistence down to 3.93 d at the greater application rate. Both amendments (fresh and field-aged DW) significantly reduced the amount of metribuzin leached. This study showed that DW amendment may be an effective and sustainable management practice for controlling groundwater contamination by metribuzin.
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Affiliation(s)
- David Peña
- Área de Edafología y Química Agrícola, Facultad de Ciencias, Universidad de Extremadura, Avda de Elvas, Badajoz 06071, Spain.
| | - Antonio López-Piñeiro
- Área de Edafología y Química Agrícola, Facultad de Ciencias, Universidad de Extremadura, Avda de Elvas, Badajoz 06071, Spain
| | - Ángel Albarrán
- Área de Producción Vegetal, Escuela de Ingenierías Agrarias, Universidad de Extremadura, Ctra. de Cáceres, Badajoz 06071, Spain
| | - José Manuel Rato-Nunes
- Instituto Politécnico de Portalegre, Escola Superior Agrária de Elvas, Apartado 254, Elvas 7350, Portugal
| | - Javier Sánchez-Llerena
- Área de Edafología y Química Agrícola, Facultad de Ciencias, Universidad de Extremadura, Avda de Elvas, Badajoz 06071, Spain
| | - Daniel Becerra
- Área de Producción Vegetal, Escuela de Ingenierías Agrarias, Universidad de Extremadura, Ctra. de Cáceres, Badajoz 06071, Spain
| | - Manuel Ramírez
- Departamento de Microbiología, Facultad de Ciencias, Universidad de Extremadura, Avda de Elvas, Badajoz 06071, Spain
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Peña D, López-Piñeiro A, Albarrán Á, Becerra D, Sánchez-Llerena J. Environmental fate of the herbicide MCPA in agricultural soils amended with fresh and aged de-oiled two-phase olive mill waste. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:13915-13925. [PMID: 25948384 DOI: 10.1007/s11356-015-4622-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 04/27/2015] [Indexed: 05/28/2023]
Abstract
Olive oil agrifood industry generates large amounts of waste whose recycling as organic amendment represents an alternative to their disposal. The impact of de-oiled two-phase olive mill waste (DW) on the fate of 4-chloro-2-methylphenoxyacetic acid (MCPA) in Mediterranean agricultural soils was evaluated. Furthermore, the effect of the transformation of organic matter from this waste under field conditions was assessed. Four Mediterranean agricultural soils were selected and amended in laboratory with fresh DW and field-aged DW (DW and ADW treatments, respectively). Adsorption capacity increased by factors between 1.18 and 3.59, for the DW-amended soils, and by factor of 4.93, for ADW-amended soil, with respect to unamended soils, when 5% amendment was applied. The DW amendment had inhibitory effect on dehydrogenase activity and slowed herbicide dissipation, whereas the opposite effect was observed in ADW treatments. In the field-amended soil, the amount of MCPA leached was significantly reduced from 56.9% for unamended soil to 15.9% at the 5% rate. However, leaching losses of MCPA increased in the laboratory-amended soils, because of their high water-soluble organic carbon values which could enhance MCPA mobility, especially in the acidic soils. Therefore, the application of DW as organic amendment in Mediterranean agricultural soils could be an important management strategy to reduce MCPA leaching, especially if the organic matter had been previously transformed by ageing processes.
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Affiliation(s)
- David Peña
- Área de Edafología y Química Agrícola, Facultad de Ciencias, Universidad de Extremadura, Avda de Elvas, S/N 06071, Badajoz, Spain,
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Paszko T. Modeling of pH-dependent adsorption and leaching of MCPA in profiles of Polish mineral soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 494-495:229-240. [PMID: 25051325 DOI: 10.1016/j.scitotenv.2014.06.129] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2014] [Revised: 06/28/2014] [Accepted: 06/28/2014] [Indexed: 06/03/2023]
Abstract
This study aimed to determine the leaching potential of MCPA and the contribution of major soil components to its retention in 27 profiles of common Polish arable soils. Results of experiments and modeling of the pH-dependent adsorption indicated that the adsorption of the neutral and anionic forms of MCPA on soil organic matter are the predominant adsorption mechanisms, even in soil horizons with very low organic matter contents. The third most important mechanism was the adsorption of MCPA anions, most likely through the water bridging mechanism on sorption sites created by exchangeable Fe cations adsorbed in soil. It was found that in acidic soils with very low organic matter contents, the neutral form of MCPA was also adsorbed on the quartz and silica sorption sites of silt and sand. The value of r(2) was 78% when it was assumed that MCPA was adsorbed only on organic matter and 93% when all indicated mechanisms of adsorption on mineral soil components were included in the model fitted to data from all soil profiles. Simulations using FOCUS PELMO indicated that in two profiles, the 80th percentiles of the average yearly concentrations of MCPA in the leachate exceeded the European Union (EU) contamination limit of 0.1 μgL(-1). It was shown that when an assumption was made in the model of pH-dependent adsorption that MCPA was adsorbed only on organic matter, the leaching potential of MCPA was overestimated in the examined soils. Much better predictions were obtained when adsorption on mineral soil components was also included in the model.
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Affiliation(s)
- Tadeusz Paszko
- Department of Chemistry, University of Life Sciences, Akademicka 13, 20-950 Lublin, Poland.
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López-Piñeiro A, Peña D, Albarrán A, Sánchez-Llerena J, Becerra D. Behavior of MCPA in four intensive cropping soils amended with fresh, composted, and aged olive mill waste. JOURNAL OF CONTAMINANT HYDROLOGY 2013; 152:137-46. [PMID: 23911783 DOI: 10.1016/j.jconhyd.2013.07.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Revised: 07/01/2013] [Accepted: 07/02/2013] [Indexed: 05/09/2023]
Abstract
An evaluation was made of the impact of olive mill waste and its organic matter transformation on the sorption, desorption, leaching, and degradation of the herbicide MCPA when the waste was applied to four Mediterranean soils. The soils were amended in the laboratory with fresh, composted, and field-aged olive mill waste (OW, COW, and AOW treatments, respectively). It was found that the greater the amount of OW applied to the soils, but especially the greater its organic matter maturity, the greater the adsorption of MCPA. Compared with unamended soils, at the 5% rate of application the adsorption capacity increased by between 9.8% and 40%, 148% and 224%, and by 258% for the OW, COW, and AOW amended soils, respectively. The hysteresis coefficients were significantly lower in the OW-amended soils than in AOW or COW-amended soils, indicating that the adsorbed MCPA could be easily desorbed in OW-amended soils if the amendment is not aged or composted. While the OW addition greatly extended the persistence of MCPA, the application of COW enhanced MCPA degradation in all the soils, as corresponded to the increased soil microbial activity indicated by the higher levels of soil dehydrogenase activity. Fresh OW amendment significantly increased the amount of MCPA leached (from 13.7% in the most alkaline soil to 36.7% in the most acidic, at the 5% rate of application), favored by the higher levels of water soluble organic carbon content. However, leaching losses of the herbicide were reduced by up to 39.9% and 55.3% in the COW- and AOW-amended soils at the 5% loading rate, respectively. The use of OW with a high degree of organic matter maturity may be regarded as a potentially useful management practice to reduce MCPA leaching in soils with low organic matter content. The application of fresh OW, however, could well increase the risk of groundwater contamination by this herbicide, especially in acidic soils.
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Affiliation(s)
- Antonio López-Piñeiro
- Área de Edafología y Química Agrícola, Facultad de Ciencias, Universidad de Extremadura, Avda de Elvas s/n, 06071-Badajoz, Spain.
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Ghafoor A, Jarvis NJ, Stenström J. Modelling pesticide sorption in the surface and subsurface soils of an agricultural catchment. PEST MANAGEMENT SCIENCE 2013; 69:919-29. [PMID: 23281208 DOI: 10.1002/ps.3453] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Revised: 09/28/2012] [Accepted: 11/07/2012] [Indexed: 06/01/2023]
Abstract
BACKGROUND Sorption models that improve upon the koc concept are urgently needed for reliable spatial modelling of pesticide leaching. Sorption of glyphosate, bentazone and isoproturon was measured in surface and subsurface soils to test an 'extended' partitioning model that also accounts for inorganic sorbents and pH. Best-subset regression and Akaike information criteria were used to justify the inclusion of predictors and identify suitable models. RESULTS The extended partitioning model improved upon the koc concept for all three compounds: inorganic sorbents dominated sorption in subsurface soils, and their effects were only masked by organic matter in surface soils with organic carbon contents larger than ca 2%. Interactions between organic and inorganic sorbents affected glyphosate sorption, but apparently not that of bentazone or isoproturon. CONCLUSION Information on clay, iron and aluminium oxides and soil pH, in addition to organic carbon, is needed for accurate prediction of pesticide leaching. The variables foc , fclay and pH are generally available, whereas measurements of oxides of Al and Fe are rarely reported. The authors therefore emphasise the need to measure and report contents of oxides of Al and Fe in soil survey databases, because small variations in their concentrations may contribute significantly to large variations in sorption, especially of ionisable pesticides.
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Affiliation(s)
- Abdul Ghafoor
- Department of Soil and Environment, Swedish University of Agricultural Sciences SLU, Uppsala, Sweden.
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Hurtado-Sánchez M, Romero-González R, Rodríguez-Cáceres M, Durán-Merás I, Frenich AG. Rapid and sensitive on-line solid phase extraction-ultra high performance liquid chromatography–electrospray-tandem mass spectrometry analysis of pesticides in surface waters. J Chromatogr A 2013; 1305:193-202. [DOI: 10.1016/j.chroma.2013.07.045] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Revised: 07/09/2013] [Accepted: 07/10/2013] [Indexed: 10/26/2022]
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Glæsner N, Bælum J, Strobel BW, Jacobsen CS. Ageing of atrazine in manure amended soils assessed by bioavailability to Pseudomonas sp. strain ADP. Biodegradation 2013; 25:217-25. [DOI: 10.1007/s10532-013-9654-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Accepted: 06/27/2013] [Indexed: 10/26/2022]
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López-Piñeiro A, Peña D, Albarrán A, Becerra D, Sánchez-Llerena J. Sorption, leaching and persistence of metribuzin in Mediterranean soils amended with olive mill waste of different degrees of organic matter maturity. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2013; 122:76-84. [PMID: 23562950 DOI: 10.1016/j.jenvman.2013.03.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Revised: 02/27/2013] [Accepted: 03/05/2013] [Indexed: 06/02/2023]
Abstract
Metribuzin is a widely used herbicide, and worldwide is one of the most important contaminants in ground and surface waters. The aim of this study was to evaluate the impact amendment with fresh, composted, and field-aged olive mill waste (OW, COW, and AOW, respectively) had on the behaviour of this herbicide in four typical Mediterranean soils. A batch equilibration method was used to determine metribuzin adsorption-desorption. Leaching experiments were studied in hand-packed soil columns. Half-lives were calculated with incubation studies. Soil dehydrogenase activity (DHA) was also monitored. Metribuzin adsorption in the soils increased not only with increasing amounts of amendment, but especially with increasing degree of organic matter humification. Compared to unamended soils, the adsorption capacity increased by between 81% and 216%, 135% and 193%, and by 363% for the OW, COW, and AOW amended soils, respectively, at a 5% rate of application. The addition of COW enhanced metribuzin degradation in all the soils. In contrast, OW addition increased metribuzin persistence, attributable mainly to the inhibitory effect of this amendment on microbial activity, especially in the acidic soils. The AOW-amended soils, which had the smallest labile fraction of soil organic matter and greatest degree of humification, showed the shortest herbicide persistence. The OW and COW amendments significantly reduced the amount of metribuzin leached. This was especially so in the latter case because of the higher sorption capacity and the faster degradation of the pesticide. The use of OW as organic amendment, especially when it has a high degree of organic matter humification, may be a useful management practice for reducing the risk of groundwater contamination by metribuzin in soils with low organic matter content.
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Affiliation(s)
- Antonio López-Piñeiro
- Department of Plant Biology, Ecology and Earth Sciences, Faculty of Sciences, University of Extremadura, Badajoz, Spain.
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Badawi N, Johnsen AR, Sørensen J, Aamand J. Centimeter-scale spatial variability in 2-methyl-4-chlorophenoxyacetic Acid mineralization increases with depth in agricultural soil. JOURNAL OF ENVIRONMENTAL QUALITY 2013; 42:683-689. [PMID: 23673934 DOI: 10.2134/jeq2012.0397] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Mineralization of organic chemicals in soil is typically studied using large homogenized samples, but little is known about the small-scale spatial distribution of mineralization potential. We studied centimeter-scale spatial distribution of 2-methyl-4-chlorophenoxyacetic acid (MCPA) mineralization activity at different depths (8-115 cm) in a Danish agricultural soil profile using a 96-well microplate C-radiorespirometric method for small-volume samples. The heterotrophic microbial population and specific MCPA degraders decreased 10- to 100-fold from the plow layer to a depth of 115 cm. MCPA was mineralized in all samples in the plow layer, but only about 60% in the transition zone immediately below the plow layer showed mineralization; at greater depth even fewer samples showed mineralization. A patchy spatial distribution of mineralization activity was observed from right below the plow layer and in the subsoil, with a few clearly defined active zones surrounded by areas devoid of mineralization activity. Due to the patchy distribution of mineralization activity at the centimeter scale just beneath the plow layer, MCPA and presumably other weakly sorbing pesticides might be at risk of leaching to the groundwater if transported from the plow layer into the subsoil.
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Hu J, Yang T, Yin S, Cao D. Dissipation and residue of MCPA (4-chloro-2-ethylphenoxyacetate) in wheat and soil. ENVIRONMENTAL MONITORING AND ASSESSMENT 2012; 184:5017-5024. [PMID: 21915603 DOI: 10.1007/s10661-011-2317-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2011] [Accepted: 08/29/2011] [Indexed: 05/31/2023]
Abstract
A rapid and simple HPLC method has been developed for the quantitation of 4-chloro-2-methylphenoxyacetic acid (MCPA) in both wheat and soil samples. Samples were extracted in acidic media and cleaned up by solid-phase extraction with C(18) cartridges before HPLC-DAD detection. The limits of detection and quantification of MCPA were 0.02 ng and 0.01 mg/kg for both wheat and soil. The mean recoveries ranged from 87.1% to 98.2%, and the RSDs ranged from 0.604% to 3.44% for the three spiked levels (0.01, 0.1, 0.5 mg/kg). The proposed method was successfully applied to the analysis of MCPA residues in wheat and soil samples from an experimental field. The dissipation half-lives in soil were calculated to be 3.22 days (Beijing) and 3.10 days (Tianjin), respectively. Direct confirmation of the analytes in real samples was achieved by gas chromatography-mass spectrometry. The results indicated that at harvest time, the residues of MCPA in wheat were well below the maximum residue levels and were safe to apply in wheat.
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Affiliation(s)
- Jiye Hu
- School of Chemical and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, People's Republic of China.
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Hiller E, Tatarková V, Šimonovičová A, Bartal' M. Sorption, desorption, and degradation of (4-chloro-2-methylphenoxy)acetic acid in representative soils of the Danubian Lowland, Slovakia. CHEMOSPHERE 2012; 87:437-444. [PMID: 22206646 DOI: 10.1016/j.chemosphere.2011.12.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2011] [Revised: 12/07/2011] [Accepted: 12/08/2011] [Indexed: 05/31/2023]
Abstract
Herbicide leaching through soil into groundwater greatly depends upon sorption-desorption and degradation phenomena. Batch adsorption, desorption and degradation experiments were performed with acidic herbicide MCPA and three soil types collected from their respective soil horizons. MCPA was found to be weakly sorbed by the soils with Freundlich coefficient values ranging from 0.37 to 1.03 mg(1-1/)(n) kg(-1) L(1/)(n). It was shown that MCPA sorption positively correlated with soil organic carbon content, humic and fulvic acid carbon contents, and negatively with soil pH. The importance of soil organic matter in MCPA sorption by soils was also confirmed by performing sorption experiments after soil organic matter removal. MCPA sorption in these treated soils decreased by 37-100% compared to the original soils. A relatively large part of the sorbed MCPA was released from soils into aqueous solution after four successive desorption steps, although some hysteresis occurred during desorption of MCPA from all soils. Both sorption and desorption were depth-dependent, the A soil horizons exhibited higher retention capacity of the herbicide than B or C soil horizons. Generally, MCPA sorption decreased in the presence of phosphate and low molecular weight organic acids. Degradation of MCPA was faster in the A soil horizons than the corresponding B or C soil horizons with half-life values ranging from 4.9 to 9.6 d in topsoils and from 11.6 to 23.4 d in subsoils.
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Affiliation(s)
- Edgar Hiller
- Department of Geochemistry, Comenius University in Bratislava, Mlynska dolina, 842 15 Bratislava, Slovakia.
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Paszko T. Adsorption and desorption processes of MCPA in Polish mineral soils. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2011; 46:569-580. [PMID: 21722084 DOI: 10.1080/03601234.2011.586593] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Studies on the adsorption and desorption of MCPA (4-chloro-2-methylophenoxyacetic acid) were performed in soil horizons of three representative Polish agricultural soils. The Hyperdystric Arenosol, the Haplic Luvisol and the Hypereutric Cambisol were investigated in laboratory batch experiments. Initially, both the adsorption and desorption proceeded rapidly, and either the equilibrium was reached after approximately 30 min or the process slowed down and continued at a slow rate. In the latter case, the equilibrium was reached after 8 hours. Data on the adsorption/desorption kinetics fitted well to the two-site kinetic model. The measured sorption and desorption isotherms were of L-type. The sorption distribution coefficients (K(ads) (d)) were in the range of 0.75--0.97 for Ap soil horizons and significantly lower in deeper soil layers. The corresponding desorption coefficients (K(des) (d)) were higher and ranged from 1.02 to 2.01. Both the adsorption and desorption of MCPA in all soil horizons was strongly and negatively related to soil pH. It appears that hydrophobic sorption plays a dominant role in the MCPA retention in topsoils whereas hydrophilic sorption of MCPA anions is the dominant adsorption mechanism in subsoils.
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Affiliation(s)
- Tadeusz Paszko
- Department of Chemistry, University of Life Sciences, Lublin, Poland.
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