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Azimzadeh B, Nicholson LK, Martínez CE. In the presence of the other: How glyphosate and peptide molecules alter the dynamics of sorption on goethite. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169264. [PMID: 38092207 DOI: 10.1016/j.scitotenv.2023.169264] [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: 06/14/2023] [Revised: 11/19/2023] [Accepted: 12/08/2023] [Indexed: 12/17/2023]
Abstract
The interactions with soil mineral surfaces are among the factors that determine the mobility and bioavailability of organic contaminants and of nutrients present in dissolved organic matter (DOM) in soil and aquatic environments. While most studies focus on high molar mass organic matter fractions (e.g., humic and fulvic acids), very few studies investigate the impact of DOM constituents in competitive sorption. Here we assess the sorption behavior of a heavily used herbicide (i.e., glyphosate) and a component of DOM (i.e., a peptide) at the water/goethite interface, inclusive of potential glyphosate-peptide interactions. We used in-situ ATR-FTIR (attenuated total reflectance Fourier-transform infrared) spectroscopy to study sorption kinetics and mechanisms of interaction as well as conformational changes to the secondary structure of the peptide. NMR (nuclear magnetic resonance) spectroscopy was used to assess the level of interaction between glyphosate and the peptide and changes to the peptide' secondary structure in solution. For the first time, we illustrate competition for sorption sites results in co-sorption of glyphosate and peptide molecules that affects the extent, kinetics, and mechanism of interaction of each with the surface. In the presence of the peptide, the formation of outer-sphere glyphosate-goethite complexes is favored albeit inner-sphere glyphosate-goethite bonds (i.e., POFe) are still formed. The presence of glyphosate induces secondary structural shifts of the sorbed peptide that maximizes the formation of H-bonds with the goethite surface. However, glyphosate and the peptide do not seem to interact with one another in solution nor at the goethite surface upon sorption. The results of this work highlight potential consequences of competition for sorption sites, for example the transport of organic contaminants and nutrient-rich (i.e., nitrogen) DOM components in relevant environmental systems. Predicting the rate and extent with which organic pollutants are removed from solution by a given solid is also one of the most critical factors for the design of effective sorption systems in engineering applications.
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Affiliation(s)
- Behrooz Azimzadeh
- Soil and Crop Sciences, School of Integrative Plant Science, Cornell University, Ithaca, NY 14853, USA
| | - Linda K Nicholson
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853, USA
| | - Carmen Enid Martínez
- Soil and Crop Sciences, School of Integrative Plant Science, Cornell University, Ithaca, NY 14853, USA.
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Tan H, Xing Q, Mo L, Wu C, Zhang X, He X, Liang Y, Hao R. Occurrence, multiphase partitioning, drivers, and ecological risks of current-use herbicides in a river basin dominated by rice-vegetable rotations in tropical China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 908:168270. [PMID: 37918751 DOI: 10.1016/j.scitotenv.2023.168270] [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: 07/17/2023] [Revised: 10/29/2023] [Accepted: 10/30/2023] [Indexed: 11/04/2023]
Abstract
Rice-vegetable rotation practices prevail in subtropical and tropical agriculture worldwide, with applications of current-use herbicides (CUHs) vital for nontarget plant control. After application, CUHs migrate to environmental compartments, where the occurrence, fate, and ecological risks have not been well characterized. To further understand the occurrence and multiphase partitioning, as well as to evaluate potential drivers and mixture risks in environmental compartments, we analyzed 11 CUHs in 576 samples from 36 rice-vegetable rotations in Nandu River basin, Hainan, China. Samples included soil, water, suspended particulate matter, and sediment collected during both rice and vegetable planting periods. The CUH concentrations varied across environmental compartments, but with high levels of glyphosate and aminomethylphosphonic acid organophosphorus herbicides (OPHs) frequently detected, accounting for 82.3 % to 99.0 % in environmental compartments. Phenoxy acid (PAA) and chloroacetanilide (ANH) herbicides were detected at lower frequencies. Spatiotemporal variation was significantly different among OPHs, ANHs, and PAAs, with geographic and crop-related patterns most evident for CUHs rather than OPHs. Structural equation model, redundancy, and boosted regression tree analyses indicated environmental compartment properties (pH, organic matter, and Fe/Al oxides), crop type, and wet/dry climate were important drivers of spatiotemporal patterns. Fugacity ratios indicated multiphase partitioning and transport of CUHs differed in rice and vegetable planting periods. A new assessment framework based on species-sensitive distributions and environmental compartment weight index indicated unacceptable risks of CUHs (risk quotient >1 in >50 % of sites), with most risks from OPHs (10.5 % to 98.0 %) and butachlor, acetochlor, and 2,4-dichlorophenoxyacetic acid. Risk hot spots were identified as the soil, the central region, and the vegetable planting period, potentially threatening nontarget organisms (e.g., Lemna minor, Glomus intraradices, and Apis mellifera). This study provides a new risk assessment framework and demonstrates the domination of OPHs in CUH contamination and risks in the tropics, thus helping guide policymakers and stakeholders on herbicide management.
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Affiliation(s)
- Huadong Tan
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China; National Agricultural Experimental Station for Agricultural Environment, Danzhou 571737, PR China; Hainan Engineering Research Center for Non-point Source and Heavy Metal Pollution Control, Danzhou 571737, PR China
| | - Qiao Xing
- Hainan Research Academy of Environmental Sciences, Haikou 571126, PR China
| | - Ling Mo
- Hainan Research Academy of Environmental Sciences, Haikou 571126, PR China
| | - Chunyuan Wu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China; National Agricultural Experimental Station for Agricultural Environment, Danzhou 571737, PR China; Hainan Engineering Research Center for Non-point Source and Heavy Metal Pollution Control, Danzhou 571737, PR China.
| | - Xiaoying Zhang
- Haikou Experimental Station, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China
| | - Xiaoyu He
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China; Guizhou University, Guiyang 550025, PR China
| | - Yuefu Liang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China; Huazhong Agricultural University, Wuhan 430070, PR China
| | - Rong Hao
- Huazhong Agricultural University, Wuhan 430070, PR China.
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Slaby S, Catteau A, Le Cor F, Cant A, Dufour V, Iurétig A, Turiès C, Palluel O, Bado-Nilles A, Bonnard M, Cardoso O, Dauchy X, Porcher JM, Banas D. Chemical occurrence of pesticides and transformation products in two small lentic waterbodies at the head of agricultural watersheds and biological responses in caged Gasterosteus aculeatus. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166326. [PMID: 37591395 DOI: 10.1016/j.scitotenv.2023.166326] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/10/2023] [Accepted: 08/13/2023] [Indexed: 08/19/2023]
Abstract
Recent monitoring campaigns have revealed the presence of mixtures of pesticides and their transformation products (TP) in headwater streams situated within agricultural catchments. These observations were attributed to the use of various agrochemicals in surrounding regions. The aim of this work was to compare the application of chemical and ecotoxicological tools for assessing environmental quality in relation to pesticide and TP contamination. It was achieved by deploying these methodologies in two small lentic water bodies located at the top of two agricultural catchments, each characterized by distinct agricultural practices (ALT: organic, CHA: conventional). Additionally, the results make it possible to assess the impact of contamination on fish caged in situ. Pesticides and TP were measured in water using active and passive samplers and suspended solid particles. Eighteen biomarkers (innate immune responses, oxidative stress, biotransformation, neurotoxicity, genotoxicity, and endocrine disruption) were measured in Gasterosteus aculeatus encaged in situ. More contaminants were detected in CHA, totaling 25 compared to 14 in ALT. Despite the absence of pesticide application in the ALT watershed for the past 14 years, 7 contaminants were quantified in 100 % of the water samples. Among these contaminants, 6 were TPs (notably atrazine-2-hydroxy, present at a concentration exceeding 300 ng·L-1), and 1 was a current pesticide, prosulfocarb, whose mobility should prompt more caution and new regulations to protect adjacent ecosystems and crops. Regarding the integrated biomarker response (IBRv2), caged fish was similarly impacted in ALT and CHA. Variations in biomarker responses were highlighted depending on the site, but the results did not reveal whether one site is of better quality than the other. This outcome was likely attributed to the occurrence of contaminant mixtures in both sites. The main conclusions revealed that chemical and biological tools complement each other to better assess the environmental quality of wetlands such as ponds.
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Affiliation(s)
- Sylvain Slaby
- Université de Lorraine, INRAE, URAFPA, F-54000 Nancy, France.
| | - Audrey Catteau
- Institut National de l'Environnement Industriel et des Risques (INERIS), UMR-I 02 SEBIO, Parc Technologique Alata, BP 2, 60550 Verneuil-en-Halatte, France.
| | - François Le Cor
- Université de Lorraine, INRAE, URAFPA, F-54000 Nancy, France; ANSES, Nancy Laboratory for Hydrology, Water Chemistry Department, 40 Rue Lionnois, F-54000 Nancy, France.
| | - Amélie Cant
- Institut National de l'Environnement Industriel et des Risques (INERIS), UMR-I 02 SEBIO, Parc Technologique Alata, BP 2, 60550 Verneuil-en-Halatte, France
| | - Vincent Dufour
- Université de Lorraine, INRAE, URAFPA, F-54000 Nancy, France.
| | - Alain Iurétig
- Université de Lorraine, INRAE, URAFPA, F-54000 Nancy, France.
| | - Cyril Turiès
- Institut National de l'Environnement Industriel et des Risques (INERIS), UMR-I 02 SEBIO, Parc Technologique Alata, BP 2, 60550 Verneuil-en-Halatte, France.
| | - Olivier Palluel
- Institut National de l'Environnement Industriel et des Risques (INERIS), UMR-I 02 SEBIO, Parc Technologique Alata, BP 2, 60550 Verneuil-en-Halatte, France.
| | - Anne Bado-Nilles
- Institut National de l'Environnement Industriel et des Risques (INERIS), UMR-I 02 SEBIO, Parc Technologique Alata, BP 2, 60550 Verneuil-en-Halatte, France.
| | - Marc Bonnard
- Université de Reims Champagne-Ardenne (URCA), UMR-I 02 SEBIO, UFR Sciences Exactes et Naturelles, Campus Moulin de la Housse, BP 1039, 51687 Reims, France.
| | - Olivier Cardoso
- OFB, Direction de la Recherche et de l'Appui Scientifique, 9 avenue Buffon, F-45071 Orléans, France.
| | - Xavier Dauchy
- ANSES, Nancy Laboratory for Hydrology, Water Chemistry Department, 40 Rue Lionnois, F-54000 Nancy, France.
| | - Jean-Marc Porcher
- Institut National de l'Environnement Industriel et des Risques (INERIS), UMR-I 02 SEBIO, Parc Technologique Alata, BP 2, 60550 Verneuil-en-Halatte, France.
| | - Damien Banas
- Université de Lorraine, INRAE, URAFPA, F-54000 Nancy, France.
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Alarape SA, Fagbohun AF, Ipadeola OA, Adeigbo AA, Adesola RO, Adeyemo OK. Assessment of glyphosate and its metabolites' residue concentrations in cultured African Catfish offered for sale in selected markets in Ibadan, Oyo State, Nigeria. FRONTIERS IN TOXICOLOGY 2023; 5:1250137. [PMID: 38026841 PMCID: PMC10653321 DOI: 10.3389/ftox.2023.1250137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 10/03/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction: Glyphosate is a non-targeted organophosphate insecticide whose solubility and mobility in hydrophilic solvents enable its rapid leaching into the soil and subsequent contamination of ground and surface water and possible build-up in the aquatic food chain. Based on the public health importance of glyphosate in fish through consumption, it is crucial to determine the current residue concentration in culture Clarias gariepinus species. The aim of the present study is to evaluate glyphosate's residue concentrations and its metabolites in cultured African Catfish offered for sale in selected markets in Ibadan. Methods: A total of twenty-five (25) adult Clarias gariepinus (300 ± 50 g) were sourced from five (5) selected active fish markets (Ojoo, Iwo road, Eleyele, Challenge, and Apata) within the Ibadan metropolis. The collected fish tissue samples (liver, kidney, and spleen) were prepared for glyphosate residue concentration analysis using Liquid Chromatography (LC). Results: The results showed that glyphosate residues were recorded in all the seventy-five (75) fish tissue samples obtained from the selected fish markets in the Ibadan metropolis and all residue concentrations were above both the recommended Acceptable Daily Intake (ADI) of 1.0 mg/kg (1 × 10-3 mg/L) and Maximum Residue Limits (MRL) of 0.01 mg/kg (1 × 10-5 mg/L). Isopropylamine has the highest residue concentration followed by N-Phosphonomethyl and Aminomethylphosphonic Acid (AMPA), while N-Acetyl Glyphosate has the least residue concentration across the sampled markets. Discussion: The presence of residues of glyphosate and its metabolites in ready-to-eat fish calls for holistic, systematic, and effective risk management strategies towards monitoring pesticide/herbicide usage in aquaculture production and ensuring the provision of wholesome fish and fish products for the consumers.
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Affiliation(s)
- Selim Adewale Alarape
- Department of Veterinary Public Health and Preventive Medicine, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | | | - Oladeni Adegoke Ipadeola
- Department of Veterinary Public Health and Preventive Medicine, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | | | - Ridwan Olamilekan Adesola
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Olanike Kudirat Adeyemo
- Department of Veterinary Public Health and Preventive Medicine, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
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Zhang L, Xu L, Zhang L, Zhang Y, Chen Y. Adsorption-desorption characteristics of atrazine on soil and vermicompost prepared with different ratios of raw materials. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2023; 58:583-593. [PMID: 37614009 DOI: 10.1080/03601234.2023.2247942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
In this work, vermicompost was prepared with maize stover and cattle dung in ratios of 60:40 (VC1), 50:50 (VC2) and 40:60 (VC3), and the physicochemical properties of the vermicompost were related to the ratio of the raw materials used. The effect of the vermicomposts on the adsorption kinetics, adsorption isotherms and desorption of atrazine were investigated in unamended soil (S) and soil amended with 4% (w/w) of VC1(S-VC1), VC2(S-VC2) and VC3(S-VC3). The total organic carbon (TOC) content of VC1, VC2 and VC3 was 38.46, 37.33 and 34.47%, the HA content was 43.50, 42.22 and 39.28 g/kg, and the HA/FA ratios was 1.47, 0.44 and 0.83, respectively. The adsorption of atrazine on the soil, on the vermicompost and on soils amended with vermicompost followed a pseudo-second-order kinetic model. The Freundlich equation better fitted the adsorption isotherm of atrazine. The vermicomposts enhanced atrazine adsorption and decreased atrazine desorption. Correlation analysis showed that the TOC and HA were significantly positively correlated with Kf, which indicated that TOC and HA of the vermicomposts contributed significantly to the adsorption and desorption of atrazine. This study demonstrated that vermicomposts have great potential in the bioremediation of atrazine pollution and that their role is related to the raw materials used to prepare them.
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Affiliation(s)
- Luwen Zhang
- College of Biological and Agricultural Engineering, Jilin University, Changchun, China
| | - Lixin Xu
- College of Life Sciences, Jilin University, Changchun, China
| | - Lei Zhang
- College of Biological and Agricultural Engineering, Jilin University, Changchun, China
| | - Yan Zhang
- Costal Research and Extension Center, Mississippi State University, Starkville, Mississippi, USA
| | - Yuxiang Chen
- College of Biological and Agricultural Engineering, Jilin University, Changchun, China
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Shah SAUR, Rauf M, Ali S, Ullah S, Ullah K, Anjum SI, Azizullah A, Dawar FU. Variations in the Behaviour, Survival, Haematology, and Biochemistry of Ctenopharyngodon idella (Grass Carp) After Exposure to Commercial Grade Atrazine. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2023; 111:14. [PMID: 37450051 DOI: 10.1007/s00128-023-03769-7] [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: 02/24/2023] [Accepted: 07/03/2023] [Indexed: 07/18/2023]
Abstract
The current study assessed the harmful effects of Atrazine (ATZ) herbicide on haematology and biochemistry of the freshwater fish Ctenopharyngodon idella, a commercially significant fish in Pakistan. C. idella (13 ± 8.4 cm; 132 ± 5.6 g) was exposed to graded levels of ATZ, and its 96-hour LC50 value at 25°C was calculated to be 150.5 µl/L. After exposure to ATZ, fish displayed rapid movements, a loss of balance in position and equilibrium, anxious swimming patterns, colour changes, and increased mucous production. The MCHC, MCH, RBCs, and Hb in C. idella decreased significantly (P < 0.05), whereas the MCV, Ht, and WBCs were significantly increased (P < 0.05). At different time intervals (24, 48, 72, and 96 h) following ATZ administration (50, 100, 150, and 200 µl/L), biochemical analysis significantly decreased (P < 0.05) triglyceride, total protein, cholesterol, and albumin levels, whereas glucose levels significantly increased (P < 0.05). We concluded that ATZ is toxic to C. idella, altering their haematology and blood biochemistry even after only a brief exposure.
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Affiliation(s)
- Syed Ata Ur Rahman Shah
- Department of Zoology, Kohat University of Science and Technology, Kohat, 26000, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Rauf
- Department of Zoology, Kohat University of Science and Technology, Kohat, 26000, Khyber Pakhtunkhwa, Pakistan
| | - Shandana Ali
- Department of Zoology, Kohat University of Science and Technology, Kohat, 26000, Khyber Pakhtunkhwa, Pakistan
| | - Sana Ullah
- Department of Zoology, Division of Science and Technology, University of Education, Lahore, 54000, Pakistan
| | - Kalim Ullah
- Department of Zoology, Kohat University of Science and Technology, Kohat, 26000, Khyber Pakhtunkhwa, Pakistan
| | - Syed Ishtiaq Anjum
- Department of Zoology, Kohat University of Science and Technology, Kohat, 26000, Khyber Pakhtunkhwa, Pakistan
| | - Azizullah Azizullah
- Department of Biological Sciences, University of Haripur, Haripur, Khyber Pakhtunkhwa, Pakistan
| | - Farman Ullah Dawar
- Department of Zoology, Kohat University of Science and Technology, Kohat, 26000, Khyber Pakhtunkhwa, Pakistan.
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Tongur T, Ayranci E. Investigation of the performance of activated carbon cloth to remove glyphosate, glufosinate, aminomethylphosphonic acid and bialaphos from aqueous solutions by adsorption/electrosorption. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:814. [PMID: 37286884 DOI: 10.1007/s10661-023-11395-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 05/15/2023] [Indexed: 06/09/2023]
Abstract
The present study investigates the removal of glyphosate, glufosinate, aminomethylphosphonic acid and bialaphos herbicides from their 5 × 10-5 M aqueous solutions onto activated carbon cloth by adsorption and electrosorption. Analysis of these highly polar herbicides was achieved by UV-visible absorbance measurements, after derivatization with 9-fluorenylmethyloxycarbonyl chloride. The limit of quantification values of glyphosate, glufosinate, aminomethylphosphonic acid and bialaphos were 1.06 × 10-6 mol L-1, 1.38 × 10-6 mol L-1, 1.32 × 10-6 mol L-1 and 1.08 × 10-6 mol L-1, respectively. Glyphosate, glufosinate, aminomethylphosphonic acid and bialaphos were removed from their aqueous solutions with higher efficiencies by means of electrosorption (78.2%, 94.9%, 82.3% and 97%, respectively) than of open-circuit adsorption (42.5%, 22%, 6.9% and 81.8%, respectively). Experimental kinetic data were fitted to pseudo-first order and pseudo-second order kinetic models. It was determined that pseudo-second order kinetic model represents experimental data better with satisfactory coefficient of determination, r2 (> 0.985) and normalized percent deviation, P (< 5.15) values. Adsorption isotherm data were treated according to Freundlich and Langmuir isotherm models. Based on the r2 (> 0.98) and P (< 5.9) values, it was found that experimental data well fitted to Freundlich isotherm model. Adsorption capacities of activated carbon cloth for glyphosate, glufosinate, aminomethylphosphonic acid and bialaphos, expressed in terms of Freundlich constant, were calculated as 20.31, 118.73, 239.33 and 30.68 mmol g-1, respectively. The results show that the studied ACC can be used in home/business water treatment systems as an adsorbent due to its high adsorption capacity.
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Affiliation(s)
- Timur Tongur
- Faculty of Science, Department of Chemistry, Akdeniz University, Antalya, Turkey.
| | - Erol Ayranci
- Faculty of Science, Department of Chemistry, Akdeniz University, Antalya, Turkey
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Abdelhak S, Menard Y, Artigas J. Effects of global change on the ability of stream biofilm to dissipate the herbicide glyphosate. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 324:121406. [PMID: 36893978 DOI: 10.1016/j.envpol.2023.121406] [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: 09/27/2022] [Revised: 02/21/2023] [Accepted: 03/05/2023] [Indexed: 06/18/2023]
Abstract
The herbicide glyphosate is contaminating a large number of freshwater ecosystems worldwide and its fate and effects remains uncertain in light of the effects of global change. The present study examines how variations in water temperature and light availability relative to global change affect the ability of stream biofilms to degrade the herbicide glyphosate. Biofilms were exposed in microcosms to two levels of water temperature simulating global warming (Ambient = 19-22 °C and Warm = 21-24 °C) and three levels of light representative of riparian habitat destruction due to land use change (Dark = 0, Intermediate = 600, High = 1200 μmol photons m-2 s-1). Biofilms were acclimated to six different experimental treatments, namely i) ambient temperature without light (AMB_D), ii) ambient temperature and intermediate light (AMB_IL), iii) ambient temperature and high light (AMB_HL), iv) warm temperature without light (WARM_D), v) warm temperature and intermediate light (WARM_IL) and vi) warm temperature and high light (WARM_HL). The ability of biofilms to degrade 50 μg L-1 of glyphosate was tested. Results showed that water temperature increase, but not light availability increase, significantly increased aminomethyl phosphonic acid (AMPA) production by biofilms. However, the combined increase of temperature and light generated the shortest time to dissipate half of the glyphosate supplied and/or half of the maximum AMPA produced (6.4 and 5.4 days, respectively) by biofilms. Despite light had a major effect in modulating biofilm structural and functional descriptors, the response of certain descriptors (i. e. chlorophyll-a concentration, bacterial density and diversity, nutrient content and PHO activity) to light availability increase depended on water temperature. Specifically, the biofilms in the WARM_HL treatment displayed the highest Glucosidase: Peptidase and Glucosidase: Phosphatase enzyme activity ratios and the lowest biomass C: N molar ratios compared to the other treatments. According to these results, warmer temperatures and high light availability could have been exacerbating the decomposition of organic C compounds in biofilms, including the use of glyphosate as a C source for microbial heterotrophs. This study shows that ecoenzymatic stoichiometry and xenobiotic biodegradation approaches can be combined to better understand the functioning of biofilms in pesticide-polluted streams.
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Affiliation(s)
- Selma Abdelhak
- Université Clermont Auvergne, CNRS, Laboratoire Microorganismes: Génome et Environnement (LMGE), F-63000, Clermont-Ferrand, France
| | - Yoann Menard
- Université Clermont Auvergne, CNRS, Laboratoire Microorganismes: Génome et Environnement (LMGE), F-63000, Clermont-Ferrand, France
| | - Joan Artigas
- Université Clermont Auvergne, CNRS, Laboratoire Microorganismes: Génome et Environnement (LMGE), F-63000, Clermont-Ferrand, France.
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Edge CB, Haines W, Blaney M, Noël M. Low detection of glyphosate in rivers following application in forestry. PEST MANAGEMENT SCIENCE 2023. [PMID: 36966464 DOI: 10.1002/ps.7473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/21/2023] [Accepted: 03/26/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Glyphosate is the most commonly used herbicide in the world, and is used in agriculture, forestry, and urban settings. In regions with high glyphosate use, such as agricultural, glyphosate and its' major derivative aminomethylphosphonic acid (AMPA) are frequently detected in surface waters. In Canadian forestry glyphosate-based herbicides are used to control vegetation that competes with conifer trees and are applied one to two times during a rotation, leading to infrequent application to the same area. Forestry occurs over a large spatial extent, and the cumulative application in space can lead to a large percentage of the land base receiving an application through time. To assess the frequency and concentration of glyphosate and AMPA in surface waters of a region where forestry is the dominant use sector, we conducted three monitoring programs targeting: (i) immediately after application, (ii) after rainfall, and (iii) cumulative application over a large spatial extent. RESULTS Across all monitoring programs we collected 296 water samples between August and October from eight river systems over two years and detected glyphosate in one sample at 17 ppb. CONCLUSION Glyphosate is not likely present in surface waters during baseflow conditions as a result of applications in forestry. Lack of detection is likely because soil capacity to bind glyphosate remains high due to infrequent applications to the same area, and factors that limit sediment transport to surface waters such as buffers. Additional sampling is needed during other stream conditions, ideally spring freshet, to determine peak concentrations. © 2023 National Research Council Canada. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. Reproduced with the permission of the Minister of Innovation, Science, and Economic Development.
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Affiliation(s)
| | - William Haines
- Government of New Brunswick, Natural Resources & Energy Development, Forest Operations and Development Branch, Fredericton, Canada
| | - Matt Blaney
- Government of New Brunswick, Natural Resources & Energy Development, Forest Operations and Development Branch, Fredericton, Canada
| | - Martin Noël
- Government of New Brunswick, Natural Resources & Energy Development, Forest Operations and Development Branch, Fredericton, Canada
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Bordin ER, Yamamoto FY, Mannes Y, Munhoz RC, Muelbert JRE, de Freitas AM, Cestari MM, Ramsdorf WA. Sublethal effects of the herbicides atrazine and glyphosate at environmentally relevant concentrations on South American catfish (Rhamdia quelen) embryos. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023; 98:104057. [PMID: 36592679 DOI: 10.1016/j.etap.2022.104057] [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: 10/22/2022] [Revised: 11/28/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
The objective of this work was to evaluate the effects following exposure (96 h) of South American catfish (R. quelen) embryos to active ingredients and commercial formulations from atrazine and glyphosate, isolated and in mixtures, at environmentally relevant concentrations. While the survival rates were not affected, sublethal effects were evidenced after exposure. The most frequent deformities were fin damage and axial and thoracic damage. The mixture of active ingredients caused an increase in SOD and GST, differing from the treatment with the mixture of commercial formulations. The activity of AChE was significantly reduced following the treatment with the active ingredient atrazine and in the mixture of active ingredients. In general, herbicide mixtures were responsible for causing more toxic effects to R. quelen embryos. Therefore, these responses showed to be suitable biomarkers of herbicides' exposure, in addition to generating more environmentally relevant baseline data for re-stablishing safety levels of these substances in aquatic bodies.
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Affiliation(s)
- Eduarda Roberta Bordin
- Department of Genetics, Federal University of Paraná, Curitiba, Brazil; Laboratory of Ecotoxicology, Federal Technological University of Paraná, Curitiba, Brazil.
| | | | - Yorrannys Mannes
- Laboratory of Ecotoxicology, Federal Technological University of Paraná, Curitiba, Brazil
| | - Renan César Munhoz
- Laboratory of Ecotoxicology, Federal Technological University of Paraná, Curitiba, Brazil
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11
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Liu J, Yang G, Gao Y, Li X, Long Y, Wei S, Zhao Y, Sun S, Gao S. Transcriptome analysis reveals the mechanisms of hepatic injury caused by long-term environmental exposure to atrazine in juvenile common carp (Cyprinus carpio L.). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:36545-36556. [PMID: 36564684 DOI: 10.1007/s11356-022-24933-2] [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: 05/06/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
Atrazine (ATZ) is the second most commonly used herbicide worldwide, resulting in the pollution of water bodies and affecting the economic benefits of aquaculture. ATZ is known to cause liver damage in the common carp, Cyprinus carpio L., one of the most widely cultivated fish in China, but the underlying mechanisms are poorly understood. In this study, juvenile common carp Cyprinus carpio L. were exposed to three different environmental levels (0.4, 0.8, and 1.2 μg/L) of ATZ for 12 weeks and changes in the liver transcriptomes between the high-dose group and the control group were analyzed. The data showed that different levels of ATZ exposure caused hepatotoxicity in juvenile carp, shown by biochemical parameters and histopathological changes. Comparative transcriptomics showed that high-dose ATZ exposure led to alterations in the expression of various lipid metabolism-related gene changes, including genes associated with metabolic pathways, fatty acid metabolism, and fatty acid elongation. Furthermore, a connection network analysis of the top 100 differentially expressed genes (DEGs) showed a variety of associations between high-dose ATZ-induced liver damage and the principal DEGs, indicating the complexity of hepatotoxicity induced by ATZ. In conclusion, the molecular mechanisms underlying ATZ-triggered hepatotoxicity in juvenile carp are primarily related to impaired lipid metabolism.
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Affiliation(s)
- Jingbo Liu
- College of Biological and Brewing Engineering, Taishan University, 525 Dongyue Street, Tai'an City, 271000, Shandong Province, China
| | - Guangcheng Yang
- College of Biological and Brewing Engineering, Taishan University, 525 Dongyue Street, Tai'an City, 271000, Shandong Province, China
| | - Yanxia Gao
- College of Life Science, Shandong First Medical University & Shandong Academy of Medical Sciences, 619 Changcheng Road, Tai'an City, 271016, Shandong Province, China.
| | - Xinran Li
- College of Life Science, Shandong First Medical University & Shandong Academy of Medical Sciences, 619 Changcheng Road, Tai'an City, 271016, Shandong Province, China
| | - Yuting Long
- College of Life Science, Shandong First Medical University & Shandong Academy of Medical Sciences, 619 Changcheng Road, Tai'an City, 271016, Shandong Province, China
| | - Shuling Wei
- College of Life Science, Shandong First Medical University & Shandong Academy of Medical Sciences, 619 Changcheng Road, Tai'an City, 271016, Shandong Province, China
| | - Yuxin Zhao
- College of Life Science, Shandong First Medical University & Shandong Academy of Medical Sciences, 619 Changcheng Road, Tai'an City, 271016, Shandong Province, China
| | - Shanshan Sun
- Tai'an City Central Hospital, 29 Longtan Road, Tai'an City, 271000, Shandong Province, China
| | - Shujuan Gao
- Daiyue District Service Center of Animal Husbandry and Veterinary Business Development, 379 Leigu Street, Tai'an City, 271000, Shandong Province, China
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12
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Effective Removal of Glyphosate from Aqueous Systems Using Synthesized PEG-Coated Calcium Peroxide Nanoparticles: Kinetics Study, H 2O 2 Release Performance and Degradation Pathways. Polymers (Basel) 2023; 15:polym15030775. [PMID: 36772076 PMCID: PMC9919818 DOI: 10.3390/polym15030775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/25/2023] [Accepted: 01/26/2023] [Indexed: 02/05/2023] Open
Abstract
Glyphosate (N-phosphonomethyl glycine) is a non-selective, broad-spectrum organophosphate herbicide. Its omnipresent application with large quantity has made glyphosate as a problematic contaminant in water. Therefore, an effective technology is urgently required to remove glyphosate and its metabolites from water. In this study, calcium peroxide nanoparticles (nCPs) were functioned as an oxidant to produce sufficient hydroxyl free radicals (·OH) with the presence of Fe2+ as a catalyst using a Fenton-based system. The nCPs with small particle size (40.88 nm) and high surface area (28.09 m2/g) were successfully synthesized via a co-precipitation method. The synthesized nCPs were characterized using transform infrared spectroscopy (FTIR), X-ray diffractometry (XRD), Brunauer-Emmett-Teller analysis (BET), dynamic light scattering (DLS), and field emission scanning electron microscopy (FESEM) techniques. Under the given conditions (pH = 3.0, initial nCPs dosage = 0.2 g, Ca2+/Fe2+ molar ratio = 6, the initial glyphosate concentration = 50 mg/L, RT), 99.60% total phosphorus (TP) removal and 75.10% chemical oxygen demand (COD) removal were achieved within 75 min. The degradation process fitted with the Behnajady-Modirshahla-Ghanbery (BMG) kinetics model. The H2O2 release performance and proposed degradation pathways were also reported. The results demonstrated that calcium peroxide nanoparticles are an efficient oxidant for glyphosate removal from aqueous systems.
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13
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Arreguin-Rebolledo U, Páez-Osuna F, Betancourt-Lozano M, Rico-Martínez R. Multi-and transgenerational synergistic effects of glyphosate and chlorpyrifos at environmentally relevant concentrations in the estuarine rotifer Proales similis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 318:120708. [PMID: 36410595 DOI: 10.1016/j.envpol.2022.120708] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/03/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
We evaluated the multi-and transgenerational effects of single and combined environmentally relevant concentrations of glyphosate (GLY) and chlorpyrifos (CPF) in the estuarine rotifer Proales similis. The acute and chronic toxicities of GLY and CPF were determined as individual compounds and as a mixture. Rotifers were exposed to environmental concentrations of GLY (1, 10, 100, and 1000 μg/L) and CPF (0.1, 1, 5, and 10 μg/L). The main findings were as follows: (i) the LC50 values were 33.91 mg/L (GLY) and 280 μg/L (CPF); (ii) the toxic unit (TU50) of the mixture was 0.30, corresponding to 10.17 mg/L GLY and 83 μg/L CPF; (iii) the multigenerational study indicated that the tested concentrations of GLY and CPF, both single and combined, significantly and consistently decreased the growth rates of P. similis from the F0 to F6 generations; (iv) in most cases, GLY and CPF mixtures induced a strong synergistic effect; and (v) transgenerational effects were detected in the F4 generation, especially GLY and CPF in higher equitoxic proportions. These effects seem to dissipate in F5. Across multigeneration, a slight recovery could indicate population resilience to pollution. Our findings suggest that a mixture of GLY and CPF at environmental concentrations is likely to occur under real field conditions, increasing the risk to marine and estuarine invertebrates such as rotifers.
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Affiliation(s)
- Uriel Arreguin-Rebolledo
- Centro de Ciencias Básicas, Departamento de Química, Universidad Autónoma de Aguascalientes, Avenida Universidad 940, C.P. 20100, Aguascalientes, Ags, Mexico
| | - Federico Páez-Osuna
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de Mexico, Unidad Académica, Mazatlán, Mexico
| | | | - Roberto Rico-Martínez
- Centro de Ciencias Básicas, Departamento de Química, Universidad Autónoma de Aguascalientes, Avenida Universidad 940, C.P. 20100, Aguascalientes, Ags, Mexico.
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14
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Oliver SK, Corsi SR, Baldwin AK, Nott MA, Ankley GT, Blackwell BR, Villeneuve DL, Hladik ML, Kolpin DW, Loken L, DeCicco LA, Meyer MT, Loftin KA. Pesticide Prioritization by Potential Biological Effects in Tributaries of the Laurentian Great Lakes. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2023; 42:367-384. [PMID: 36562491 PMCID: PMC10107260 DOI: 10.1002/etc.5522] [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: 05/10/2022] [Revised: 08/16/2022] [Accepted: 11/07/2022] [Indexed: 05/09/2023]
Abstract
Watersheds of the Great Lakes Basin (USA/Canada) are highly modified and impacted by human activities including pesticide use. Despite labeling restrictions intended to minimize risks to nontarget organisms, concerns remain that environmental exposures to pesticides may be occurring at levels negatively impacting nontarget organisms. We used a combination of organismal-level toxicity estimates (in vivo aquatic life benchmarks) and data from high-throughput screening (HTS) assays (in vitro benchmarks) to prioritize pesticides and sites of concern in streams at 16 tributaries to the Great Lakes Basin. In vivo or in vitro benchmark values were exceeded at 15 sites, 10 of which had exceedances throughout the year. Pesticides had the greatest potential biological impact at the site with the greatest proportion of agricultural land use in its basin (the Maumee River, Toledo, OH, USA), with 72 parent compounds or transformation products being detected, 47 of which exceeded at least one benchmark value. Our risk-based screening approach identified multiple pesticide parent compounds of concern in tributaries of the Great Lakes; these compounds included: eight herbicides (metolachlor, acetochlor, 2,4-dichlorophenoxyacetic acid, diuron, atrazine, alachlor, triclopyr, and simazine), three fungicides (chlorothalonil, propiconazole, and carbendazim), and four insecticides (diazinon, fipronil, imidacloprid, and clothianidin). We present methods for reducing the volume and complexity of potential biological effects data that result from combining contaminant surveillance with HTS (in vitro) and traditional (in vivo) toxicity estimates. Environ Toxicol Chem 2023;42:367-384. Published 2022. This article is a U.S. Government work and is in the public domain in the USA. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
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Affiliation(s)
- Samantha K. Oliver
- US Geological SurveyUpper Midwest Water Science CenterWisconsinMadisonUSA
| | - Steven R. Corsi
- US Geological SurveyUpper Midwest Water Science CenterWisconsinMadisonUSA
| | | | - Michele A. Nott
- US Geological SurveyUpper Midwest Water Science CenterWisconsinMadisonUSA
| | - Gerald T. Ankley
- US Environmental Protection AgencyGreat Lakes Ecology and Toxicology DivisionDuluthMinnesotaUSA
| | - Brett R. Blackwell
- US Environmental Protection AgencyGreat Lakes Ecology and Toxicology DivisionDuluthMinnesotaUSA
| | - Daniel L. Villeneuve
- US Environmental Protection AgencyGreat Lakes Ecology and Toxicology DivisionDuluthMinnesotaUSA
| | - Michelle L. Hladik
- US Geological SurveySacramento, California Water Science CenterCaliforniaUSA
| | | | - Luke Loken
- US Geological SurveyUpper Midwest Water Science CenterWisconsinMadisonUSA
| | - Laura A. DeCicco
- US Geological SurveyUpper Midwest Water Science CenterWisconsinMadisonUSA
| | - Michael T. Meyer
- US Geological SurveyKansas Water Science CenterLawrenceKansasUSA
| | - Keith A. Loftin
- US Geological SurveyKansas Water Science CenterLawrenceKansasUSA
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15
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Mac Loughlin TM, Peluso ML, Marino DJG. Evaluation of pesticide pollution in the Gualeguay Basin: An extensive agriculture area in Argentina. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 851:158142. [PMID: 35988611 DOI: 10.1016/j.scitotenv.2022.158142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 08/02/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
The current agricultural production model was established in the 1990s based on the use of genetically modified organisms and agrochemicals, mainly pesticides. Despite pesticide spread and prevalence, data on the associated concentrations in surface watercourses are comparatively scarce. The aim of this work was to evaluate to what extent the >20 years of agricultural activity with the use of pesticides has impacted on the Gualeguay-River basin, with respect to the different stream orders: the tributary streams and main channel. Thirteen sites within the lower Gualeguay basin were sampled once every season (autumn, winter, spring, and summer) in 2017-2018. The samples were analyzed by gas chromatography time-of-flight mass-spectrometry (GC-TOF-MS) and ultraperformance liquid chromatography tandem mass-spectrometry (UPLC-MS/MS). The most frequently detected pesticide was glyphosate along with its metabolite (aminomethyl)phosphonic acid (AMPA), at 82 % and 71 % of surface water samples and 97 % and 92 % of bottom sediments, respectively; followed by atrazine in 73 % of the water samples. The concentrations of these compounds, each in their respective matrices, did not present sufficient statistically significant differences for differentiating a tributary stream from the main channel. Regardless of glyphosate's affinity for the suspended particulate and bottom sediments, over the entire basin the soluble fraction contributed on average to >80 % of the total concentration in surface water. Despite not being so frequently detected, certain insecticides, mostly deltamethrin, were likewise detected at concentrations above their water-quality guidelines for the protection of aquatic life, even in samples from the main channel. Upon comparison of the pesticide profiles of extensive- and horticultural-production systems in the country, atrazine emerged as a prime candidate to be used as a tracer of extensive agriculture contamination in the environment. Further research is required to establish to what degree pesticides used in agriculture and mobilized by watercourses have an impact on their associated wetland ecosystems.
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Affiliation(s)
- Tomás M Mac Loughlin
- Centro de Investigaciones del Medio Ambiente (CIM), FCEx-UNLP-CONICET, La Plata, Buenos Aires, Argentina
| | - María Leticia Peluso
- Centro de Investigaciones del Medio Ambiente (CIM), FCEx-UNLP-CONICET, La Plata, Buenos Aires, Argentina
| | - Damián J G Marino
- Centro de Investigaciones del Medio Ambiente (CIM), FCEx-UNLP-CONICET, La Plata, Buenos Aires, Argentina.
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16
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Gao Z, Liu Y, Huang Q, Li B, Ma T, Qin X, Zhao L, Sun Y, Xu Y. Effects of sepiolite and biochar on the photosynthetic and antioxidant systems of pakchoi under Cd and atrazine stress. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2022; 57:897-904. [PMID: 36263769 DOI: 10.1080/03601234.2022.2133922] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Sepiolite and biochar effectively immobilize Cd and atrazine in vegetable soils. This study further investigated the effects of sepiolite and biochar on the photosynthetic and antioxidative defence systems of pakchoi under Cd and atrazine stress. The results showed that after adding sepiolite and biochar to contaminated soil, the chlorophyll content was restored and the photosynthetic rate increased, whereas the soluble sugar content of pakchoi decreased. In the antioxidant system of the plants, the activities of peroxidase, ascorbate peroxidase, and superoxide dismutase decreased, while the activity of catalase increased. The content of malondialdehyde, glutathione, and O2·- increased, but the content of H2O2 decreased. In general, remediation materials reduced the bioavailability of Cd and atrazine, reduced the stress on pakchoi, and restored and improved the rate of photosynthesis and function of antioxidants.
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Affiliation(s)
- Zhixin Gao
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China
- College of Resources and Environment, Northeast Agricultural University, Harbin, China
| | - Yetong Liu
- Tianjin Academy of Agricultural Sciences, Tianjin, China
| | - Qingqing Huang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China
| | - Boyan Li
- Agro-Ecological Environment Monitoring and Agricultural Products Quality Inspection Center of Tianjin, Tianjin, China
| | - Tiantian Ma
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China
| | - Xu Qin
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China
| | - Lijie Zhao
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China
| | - Yuebing Sun
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China
| | - Yingming Xu
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China
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17
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Lopes AR, Moraes JS, Martins CDMG. Effects of the herbicide glyphosate on fish from embryos to adults: a review addressing behavior patterns and mechanisms behind them. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2022; 251:106281. [PMID: 36103761 DOI: 10.1016/j.aquatox.2022.106281] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 07/29/2022] [Accepted: 08/24/2022] [Indexed: 06/15/2023]
Abstract
The use of agrochemicals has grown in recent years following the increase in agricultural productivity, to eliminate weeds that can compromise crop yields. The intensive use of these products combined with the lack of treatment of agricultural wastewater is causing contamination of the natural environments, especially the aquatics. Glyphosate [N-(phosphonomethyl) glycine] is the most commonly used herbicide in agriculture worldwide. Studies have shown that this compound is toxic to a variety of fish species at the concentrations of environmental relevance. Glyphosate-based herbicides can affect fish biochemical, physiological, endocrine, and behavioral pathways. Changes in behaviors such as foraging, escaping from predators, and courtship can compromise the survival of species and even communities. The behavior patterns of fish has been shown to be a sensitive tool for risk assessment. In this sense, this review summarizes and discusses the toxic effects of glyphosate and its formulations on the behavior of fish in different life stages. Additionally, behavioral impairments were associated with other negative effects of glyphosate such as energy imbalance, stress responses, AChE inhibition, and physiological and endocrine disturbances, which are evidenced and described in the literature. Graphical abstract.
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Affiliation(s)
- Andressa Rubim Lopes
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Rio Grande RS, Brazil.
| | - Jenifer Silveira Moraes
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Rio Grande RS, Brazil
| | - Camila de Martinez Gaspar Martins
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Rio Grande RS, Brazil
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18
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Coble AA, Silva-Sanchez C, Arthurs WJ, Flinders CA. Detection and accumulation of environmentally-relevant glyphosate concentrations delivered via pulse- or continuous-delivery on passive samplers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:156131. [PMID: 35605867 DOI: 10.1016/j.scitotenv.2022.156131] [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: 04/13/2022] [Revised: 05/17/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
Glyphosate is the most commonly used herbicide globally, which has contributed to its ubiquitous presence in the environment. Glyphosate application rates and delivery to surface water vary with land use. Streams in urban and agricultural catchments can experience continuous delivery of low concentrations of glyphosate and aminomethylphosphonic acid (AMPA), while their presence in forest streams occurs as an episodic pulse following silvicultural application. We assessed whether trace concentrations of glyphosate delivered as a 1-day pulse (mimic silvicultural applications) followed by flushing with deionized water would affect the detection of glyphosate or AMPA on novel passive samplers, Polar Organic Chemical Integrative Sampler with Molecular Imprinted Polymer (POCIS-MIP), compared with continuous delivery (mimic agricultural or urban applications). Within each delivery type, POCIS-MIP were exposed to seven treatment concentrations of Rodeo (equivalent to 0.0 to 1.84 μg glyphosate L-1). Experimental results demonstrate POCIS-MIP can detect differences in relative glyphosate concentrations above 0.115 μg L-1 (pulse-delivery) or 0.23 μg L-1 (continuous-delivery), but were unable to distinguish trace concentrations (i.e., < 0.115 or 0.23 μg L-1). Our results suggest POCIS-MIP may better retain glyphosate when delivered as a pulse than when delivered continuously, but both underestimated actual treatment concentrations by 46 to 56%. There is a need to demonstrate the field applicability of passive sampling methods to improve environmental monitoring of silvicultural herbicides, and our results demonstrate passive samplers were unable to distinguish lower concentrations, suggesting a limited utility for determining trace concentration levels such as those experienced during or immediately after silvicultural application.
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Affiliation(s)
- Ashley A Coble
- NCASI, 2438 NW Professional Drive, Corvallis, OR 97330, United States of America.
| | | | - William J Arthurs
- NCASI, 1117 3rd Street, Anacortes, WA 98221, United States of America
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19
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Johnson ZT, Jared N, Peterson JK, Li J, Smith EA, Walper SA, Hooe SL, Breger JC, Medintz IL, Gomes C, Claussen JC. Enzymatic Laser-Induced Graphene Biosensor for Electrochemical Sensing of the Herbicide Glyphosate. GLOBAL CHALLENGES (HOBOKEN, NJ) 2022; 6:2200057. [PMID: 36176938 PMCID: PMC9463521 DOI: 10.1002/gch2.202200057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/17/2022] [Indexed: 06/15/2023]
Abstract
Glyphosate is a globally applied herbicide yet it has been relatively undetectable in-field samples outside of gold-standard techniques. Its presumed nontoxicity toward humans has been contested by the International Agency for Research on Cancer, while it has been detected in farmers' urine, surface waters and crop residues. Rapid, on-site detection of glyphosate is hindered by lack of field-deployable and easy-to-use sensors that circumvent sample transportation to limited laboratories that possess the equipment needed for detection. Herein, the flavoenzyme, glycine oxidase, immobilized on platinum-decorated laser-induced graphene (LIG) is used for selective detection of glyphosate as it is a substrate for GlyOx. The LIG platform provides a scaffold for enzyme attachment while maintaining the electronic and surface properties of graphene. The sensor exhibits a linear range of 10-260 µ m, detection limit of 3.03 µ m, and sensitivity of 0.991 nA µ m -1. The sensor shows minimal interference from the commonly used herbicides and insecticides: atrazine, 2,4-dichlorophenoxyacetic acid, dicamba, parathion-methyl, paraoxon-methyl, malathion, chlorpyrifos, thiamethoxam, clothianidin, and imidacloprid. Sensor function is further tested in complex river water and crop residue fluids, which validate this platform as a scalable, direct-write, and selective method of glyphosate detection for herbicide mapping and food analysis.
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Affiliation(s)
| | - Nathan Jared
- Department of Mechanical EngineeringIowa State UniversityAmesIA50011USA
| | - John K. Peterson
- Department of Mechanical EngineeringIowa State UniversityAmesIA50011USA
| | - Jingzhe Li
- Department of ChemistryIowa State UniversityAmesIA50011USA
- The Ames LaboratoryU.S. Department of EnergyAmesIA50011USA
| | - Emily A. Smith
- Department of ChemistryIowa State UniversityAmesIA50011USA
- The Ames LaboratoryU.S. Department of EnergyAmesIA50011USA
| | - Scott A. Walper
- Center for Bio/Molecular Science and Engineering, Code 6900U.S. Naval Research LaboratoryWashington, D.C20375USA
| | - Shelby L. Hooe
- Center for Bio/Molecular Science and Engineering, Code 6900U.S. Naval Research LaboratoryWashington, D.C20375USA
- National Research CouncilWashington, DC20001USA
| | - Joyce C. Breger
- Center for Bio/Molecular Science and Engineering, Code 6900U.S. Naval Research LaboratoryWashington, D.C20375USA
| | - Igor L. Medintz
- Center for Bio/Molecular Science and Engineering, Code 6900U.S. Naval Research LaboratoryWashington, D.C20375USA
| | - Carmen Gomes
- Department of Mechanical EngineeringIowa State UniversityAmesIA50011USA
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20
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Luo J, Ruan X, Chen W, Chen S, Ding Z, Chen A, Li D. Abiotic transformation of atrazine in aqueous phase by biogenic bixbyite-type Mn 2O 3 produced by a soil-derived Mn(II)-oxidizing bacterium of Providencia sp. JOURNAL OF HAZARDOUS MATERIALS 2022; 436:129243. [PMID: 35739762 DOI: 10.1016/j.jhazmat.2022.129243] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 05/14/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
Recently, biogenic Mn oxides (BioMnOx) are considered as the promising degradation agents for environmental organic contaminants. However, little information is available for the degradation of atrazine by BioMnOx. In this work, BioMnOx, generated by a soil-derived Mn(II)-oxidizing bacterium, Providencia sp. LLDRA6, was explored to degrade atrazine. To begin with, collective results from mineral characterization analyses demonstrated that this BioMnOx was biogenic bixbyite-type Mn2O3. After that, purified biogenic Mn2O3 was found to exhibit a much higher removal efficiency for atrazine in aqueous phase, as compared to unpurified biogenic Mn2O3 and LLDRA6 biomass. During the atrazine removal by biogenic Mn2O3, six intermediate degradation products were discovered, comprising deethylatrazine (DEA), hydroxylatrazine (HA), deethylhydroxyatrazine (DEHA), ammeline, cyanuric acid, and 5-methylhexahydro-1,3,5-triazine-2-thione (MTT). Particularly, the intermediate, MTT, was considered as a new degradation product of atrazine, which was not described previously. Meanwhile, Mn(II) ions were released from biogenic Mn2O3, and on the surface of biogenic Mn2O3, the content of hydroxyl O species increased at the expense of that of lattice and water O species, but the fundamental crystalline structure of this Mn oxide remained unchanged. Additionally, no dissociative Mn(III) was found to involve in atrazine degradation. In summary, these results demonstrated that both the non-oxidative and oxidative reactions underlay the degradation of atrazine by biogenic Mn2O3.
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Affiliation(s)
- Jun Luo
- School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China; Hunan Provincial Engineering Research Center of Lily Germplasm Resource Innovation and Deep Processing, Hunan University of Technology, Zhuzhou 412007, China
| | - Xiaofang Ruan
- School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
| | - Wuying Chen
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Sha Chen
- School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China; Hunan Provincial Engineering Research Center of Lily Germplasm Resource Innovation and Deep Processing, Hunan University of Technology, Zhuzhou 412007, China
| | - Zhexu Ding
- Jiangsu Provincial Key Laboratory for Organic Solid Waste Utilization, Nanjing Agricultural University, Nanjing 210095, China
| | - Ang Chen
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Ding Li
- School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China; Hunan Provincial Engineering Research Center of Lily Germplasm Resource Innovation and Deep Processing, Hunan University of Technology, Zhuzhou 412007, China.
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21
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Yu X, Jin X, Wang N, Zheng Q, Yu Y, Tang J, Wang L, Zhou R, Sun J, Zhu L. UV activated sodium percarbonate to accelerate degradation of atrazine: Mechanism, intermediates, and evaluation on residual toxicity by metabolomics. ENVIRONMENT INTERNATIONAL 2022; 166:107377. [PMID: 35779284 DOI: 10.1016/j.envint.2022.107377] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/30/2022] [Accepted: 06/23/2022] [Indexed: 06/15/2023]
Abstract
Efficient and safe removal of widely used herbicides such as atrazine has become a recent hotspot. Herein, UV driven sodium percarbonate system (UV/SPC) was established to have many advantages in remediation of atrazine contamination. The mechanism and environmental risk of intermediates were explored, which provided information for the feasibility of UV/SPC. The degradation efficiency of atrazine was significantly enhanced as the increasing dosage of SPC. Quenching assay identified that •OH and CO3•- were committed to degrading atrazine. Humic acid and HPO42- remarkably inhibited atrazine degradation. Several intermediates were generated through the dealkylation, dechlorination-hydroxylation, alkylic-hydroxylation, alkyl oxidation and olefination reactions. Toxicity prediction proved that acute toxicity and bioaccumulation of intermediates were mitigated comparing with atrazine. Based on metabolomics results, the alteration of key metabolites such as citrate, L-kynurenine, malic acid, putrescine, glutamine, spermine, ethanolamine and phytosphingosine in various metabolic pathways of E.coli verified that the toxicity of atrazine was weakened after UV/SPC treatment. The application of UV/SPC on atrazine removal in real waters was influenced by environmental factors, and might be improved through coupling with other treatment technologies.
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Affiliation(s)
- Xiaolong Yu
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, Guangdong, China; Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Guangzhou 510000, Guangdong, China
| | - Xu Jin
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Nan Wang
- Department of Physics, Jinan University, Guangzhou, Guangdong 510632, China
| | - Qian Zheng
- Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Guangzhou 510000, Guangdong, China
| | - Yuanyuan Yu
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, Guangdong, China
| | - Jin Tang
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, Guangdong, China
| | - Luyu Wang
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, Guangdong, China
| | - Rujin Zhou
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, Guangdong, China
| | - Jianteng Sun
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, Guangdong, China.
| | - Lizhong Zhu
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
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22
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Bordin ER, Munhoz RC, Panicio PP, de Freitas AM, Ramsdorf WA. Effects of environmentally relevant concentrations of atrazine and glyphosate herbicides, isolated and in mixture, on two generation of the freshwater microcrustacean Daphnia magna. ECOTOXICOLOGY (LONDON, ENGLAND) 2022; 31:884-896. [PMID: 35585359 DOI: 10.1007/s10646-022-02554-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/04/2022] [Indexed: 06/15/2023]
Abstract
The herbicides atrazine and glyphosate are used worldwide and their excessive usage results in the frequent presence of these pesticides in environmental compartments. We evaluated the effects of environmentally relevant concentrations of analytical standards and commercial formulations of atrazine (2 µg L-1) and glyphosate (65 µg L-1), isolated and in mixture (2 + 65 µg L-1) on the microcrustacean Daphnia magna. Through chronic exposure (21 days) of two generations, we observed effects on survival, reproductive capacity and responses of the antioxidant defense system (catalase) and biotransformation system (glutathione S-transferase). The survival of organisms was affected in the second generation (F1) with a mortality of 17% in the mixture of commercial formulations treatments. In the evaluation of the first generation (F0) we observed only effects on sexual maturation of organisms, while in the F1, changes were observed in all parameters evaluated. A statistical difference (p < 0.05) was also observed between the analytical standards and the commercial formulations for all parameters evaluated, indicating that other components present in the formulations can change the toxicity of products. We suggest that atrazine can modulate toxicity when mixed with glyphosate, as the standard analytical atrazine and mixture of analytical standards results were similar in most parameters. Given the difficulty in estimating effects of mixtures and considering that various stressors are found in the environment, our results support the need to carry out long-term studies and, above all, to verify what are the impacts across generations, so that the toxicity of products is not underestimated. Graphical abstract.
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Affiliation(s)
- Eduarda Roberta Bordin
- Laboratory of Ecotoxicology, Federal Technological University of Paraná, Curitiba, Brazil
| | - Renan César Munhoz
- Laboratory of Ecotoxicology, Federal Technological University of Paraná, Curitiba, Brazil
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23
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Wagner T, McLaughlin P, Smalling K, Breitmeyer S, Gordon S, Noe GB. The statistical power to detect regional temporal trends in riverine contaminants in the Chesapeake Bay Watershed, USA. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 812:152435. [PMID: 34942241 DOI: 10.1016/j.scitotenv.2021.152435] [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: 10/07/2021] [Revised: 12/10/2021] [Accepted: 12/11/2021] [Indexed: 06/14/2023]
Abstract
Chemical contamination of riverine ecosystems is largely a result of urbanization, industrialization, and agricultural activities occurring on adjacent terrestrial landscapes. Land management activities (e.g., Best Management Practices) are an important tool used to reduce point and non-point sources of pollution. However, the ability to confidently make inferences about the efficacy of land management activities on reducing in-stream chemical concentrations is poorly understood. We estimated regional temporal trends and components of variation for commonly used herbicides (atrazine and metolachlor), total estrogenicity, and riverine sediment concentrations of total PCBs for rivers in the Chesapeake Bay Watershed, USA. We then used the estimated variance components to perform a power analysis and evaluated the statistical power to detect regional temporal trends under different monitoring scenarios. Scenarios included varying the magnitude of the annual contaminant decline, the number of sites sampled each year, the number of years sampled, and sampling frequency. Monitoring for short time periods (e.g., 5 years) was inadequate for detecting regional temporal trends, regardless of the number of sites sampled or the magnitude of the annual declines. Even when monitoring over a 20-year period, sampling a relatively large number of sites each year was required (e.g., >50 sites) to achieve adequate statistical power for smaller trend magnitudes (declines of 5-7%/year). Annual sampling frequency had little impact on power for any monitoring scenario. All sampling scenarios were underpowered for sediment total PCBs. Power was greatest for total estrogenicity, suggesting that this aggregate measure of estrogenic activity may be a useful indicator. This study provides information that can be used to help (1) guide the development of monitoring programs aimed at detecting regional declines in riverine chemical contaminant concentrations in response to land management actions, and (2) set expectations for the ability to detect changes over time.
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Affiliation(s)
- Tyler Wagner
- U.S. Geological Survey, Pennsylvania Cooperative Fish and Wildlife Research Unit, Pennsylvania State University, University Park, PA 16802, USA.
| | - Paul McLaughlin
- Pennsylvania Cooperative Fish and Wildlife Research Unit, Pennsylvania State University, University Park, PA 16802, USA
| | - Kelly Smalling
- U.S. Geological Survey, New Jersey Water Science Center, Lawrenceville, NJ 08648, USA
| | - Sara Breitmeyer
- U.S. Geological Survey, New Jersey Water Science Center, Lawrenceville, NJ 08648, USA
| | - Stephanie Gordon
- U.S. Geological Survey, Eastern Ecological Science Center, Kearneysville, WV 25430, USA
| | - Gregory B Noe
- U.S. Geological Survey, Florence Bascom Geoscience Center, Reston, VA 20192, USA
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24
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Antonine B, Guillaume M, Philippe D, Marie-Hélène P. Low concentrations of glyphosate alone affect the pubertal male rat meiotic step: An in vitro study. Toxicol In Vitro 2022; 79:105291. [PMID: 34864054 DOI: 10.1016/j.tiv.2021.105291] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 11/09/2021] [Accepted: 11/29/2021] [Indexed: 12/20/2022]
Abstract
Glyphosate is the most used herbicide in the world. Controversial studies exist on its effect on the male reproductive system. We used the validated BioAlter® model to test the effects of low concentrations of Glyphosate. Pubertal rat seminiferous tubules were treated with Glyphosate 50 nM, 500 nM, 5 μM or 50 μM over a 3-week culture period. The Trans-Epithelial Electrical Resistance was not modified by any of the concentrations. The decrease of Clusterin mRNAs suggested that glyphosate would target the integrity of Sertoli cells. The decrease of the numbers of germ cells from day 14 onward highlighted the chronic effect of glyphosate at 50 nM, 500 nM or 5 μM. No consistent effect of glyphosate was observed on the numbers of spermatogonia or on their specific mRNA levels. However, those low concentrations of glyphosate targeted young spermatocytes and middle to late pachytene spermatocytes resulting in a decrease of the numbers of round spermatids, the direct precursors of spermatozoa. This study underlines that the effect of a toxicant should be also studied at low doses and during the establishment of the blood-testis barrier.
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Affiliation(s)
- Blondet Antonine
- Kallistem, VetAgro Sup, 1 Avenue Bourgelat, 69280 Marcy-l'Etoile, France.
| | - Martin Guillaume
- Kallistem, VetAgro Sup, 1 Avenue Bourgelat, 69280 Marcy-l'Etoile, France.
| | - Durand Philippe
- Kallistem, VetAgro Sup, 1 Avenue Bourgelat, 69280 Marcy-l'Etoile, France.
| | - Perrard Marie-Hélène
- INSERM U 1208, Institut Cellule Souche et Cerveau, 18 avenue du Doyen Lépine, 69500 Bron, France.
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25
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New-Aaron M, Abimbola O, Mohammadi R, Famojuro O, Naveed Z, Abadi A, Bell JE, Bartelt-Hunt S, Rogan EG. Low-Level Groundwater Atrazine in High Atrazine Usage Nebraska Counties: Likely Effects of Excessive Groundwater Abstraction. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:13241. [PMID: 34948848 PMCID: PMC8701136 DOI: 10.3390/ijerph182413241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/13/2021] [Accepted: 12/13/2021] [Indexed: 11/16/2022]
Abstract
Recent studies observed a correlation between estrogen-related cancers and groundwater atrazine in eastern Nebraska counties. However, the mechanisms of human exposure to atrazine are unclear because low groundwater atrazine concentration was observed in counties with high cancer incidence despite having the highest atrazine usage. We studied groundwater atrazine fate in high atrazine usage Nebraska counties. Data were collected from Quality Assessed Agrichemical Contaminant Nebraska Groundwater, Parameter-Elevation Regressions on Independent Slopes Model (PRISM), and water use databases. Descriptive statistics and cluster analysis were performed. Domestic wells (59%) were the predominant well type. Groundwater atrazine was affected by well depth. Clusters consisting of wells with low atrazine were characterized by excessive groundwater abstraction, reduced precipitation, high population, discharge areas, and metropolitan counties. Hence, low groundwater atrazine may be due to excessive groundwater abstraction accompanied by atrazine. Human exposure to atrazine in abstracted groundwater may be higher than the estimated amount in groundwater.
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Affiliation(s)
- Moses New-Aaron
- Department of Environmental Health, Occupational Health and Toxicology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (A.A.); (J.E.B.); (E.G.R.)
| | - Olufemi Abimbola
- Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE 68583-0726, USA
| | - Raheleh Mohammadi
- Department of Epidemiology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.M.); (O.F.)
| | - Oluwaseun Famojuro
- Department of Epidemiology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.M.); (O.F.)
| | - Zaeema Naveed
- School of Population and Public Health, The University of British Columbia, Vancouver, BC V6T 1Z3, Canada;
| | - Azar Abadi
- Department of Environmental Health, Occupational Health and Toxicology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (A.A.); (J.E.B.); (E.G.R.)
| | - Jesse E. Bell
- Department of Environmental Health, Occupational Health and Toxicology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (A.A.); (J.E.B.); (E.G.R.)
| | - Shannon Bartelt-Hunt
- Department of Civil and Environmental Engineering, University of Nebraska-Lincoln, Omaha, NE 68182-0178, USA;
| | - Eleanor G. Rogan
- Department of Environmental Health, Occupational Health and Toxicology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (A.A.); (J.E.B.); (E.G.R.)
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26
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Nowell LH, Moran PW, Bexfield LM, Mahler BJ, Van Metre PC, Bradley PM, Schmidt TS, Button DT, Qi SL. Is there an urban pesticide signature? Urban streams in five U.S. regions share common dissolved-phase pesticides but differ in predicted aquatic toxicity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 793:148453. [PMID: 34182445 DOI: 10.1016/j.scitotenv.2021.148453] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 06/01/2021] [Accepted: 06/10/2021] [Indexed: 05/24/2023]
Abstract
Pesticides occur in urban streams globally, but the relation of occurrence to urbanization can be obscured by regional differences. In studies of five regions of the United States, we investigated the effect of region and urbanization on the occurrence and potential toxicity of dissolved pesticide mixtures. We analyzed 225 pesticide compounds in weekly discrete water samples collected during 6-12 weeks from 271 wadable streams; development in these basins ranged from undeveloped to highly urbanized. Sixteen pesticides were consistently detected in 16 urban centers across the five regions-we propose that these pesticides comprise a suite of urban signature pesticides (USP) that are all common in small U.S. urban streams. These USPs accounted for the majority of summed maximum pesticide concentrations at urban sites within each urban center. USP concentrations, mixture complexity, and potential toxicity increased with the degree of urbanization in the basin. Basin urbanization explained the most variability in multivariate distance-based models of pesticide profiles, with region always secondary in importance. The USPs accounted for 83% of pesticides in the 20 most frequently occurring 2-compound unique mixtures at urban sites, with carbendazim+prometon the most common. Although USPs were consistently detected in all regions, detection frequencies and concentrations varied by region, conferring differences in potential aquatic toxicity. Potential toxicity was highest for invertebrates (benchmarks exceeded in 51% of urban streams), due most often to the neonicotinoid insecticide imidacloprid and secondarily to organophosphate insecticides and fipronil. Benchmarks were rarely exceeded in urban streams for plants (at 3% of sites) or fish (<1%). We propose that the USPs identified here would make logical core (nonexclusive) constituents for monitoring dissolved pesticides in U.S. urban streams, and that unique mixtures containing imidacloprid, fipronil, and carbendazim are priority candidates for mixtures toxicity testing.
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Affiliation(s)
- Lisa H Nowell
- U.S. Geological Survey, California Water Science Center, Placer Hall, 6000 J St., Sacramento, CA 95819, United States of America.
| | - Patrick W Moran
- U.S. Geological Survey, Washington Water Science Center, 934 Broadway, Suite 300, Tacoma, WA 98402, United States of America
| | - Laura M Bexfield
- U.S. Geological Survey, New Mexico Water Science Center, 6700 Edith Blvd NE, Bldg E, Albuquerque, NM 87113, United States of America
| | - Barbara J Mahler
- U.S. Geological Survey, Oklahoma-Texas Water Science Center, 1505 Ferguson Lane, Austin, TX 78754, United States of America
| | - Peter C Van Metre
- U.S. Geological Survey, Oklahoma-Texas Water Science Center, 1505 Ferguson Lane, Austin, TX 78754, United States of America
| | - Paul M Bradley
- U.S. Geological Survey, South Atlantic Water Science Center, 720 Gracern Rd., Suite 129, Columbia, SC 29210, United States of America
| | - Travis S Schmidt
- U.S. Geological Survey, Wyoming-Montana Water Science Center, 3162 Bozeman Ave., Helena, MT 59601, United States of America
| | - Daniel T Button
- U.S. Geological Survey, Ohio-Kentucky-Indiana Water Science Center, 6460 Busch Blvd., Suite 100, Columbus, OH 43229, United States of America
| | - Sharon L Qi
- U.S. Geological Survey, Cascades Volcano Laboratory, 1300 SE Cardinal Ct, Vancouver, WA 98683, United States of America
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27
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Xue L, Hao L, Ding H, Liu R, Zhao D, Fu J, Zhang M. Complete and rapid degradation of glyphosate with Fe 3Ce 1O x catalyst for peroxymonosulfate activation at room temperature. ENVIRONMENTAL RESEARCH 2021; 201:111618. [PMID: 34237337 DOI: 10.1016/j.envres.2021.111618] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 06/26/2021] [Accepted: 06/28/2021] [Indexed: 06/13/2023]
Abstract
Glyphosate, a common broad-spectrum herbicide, is a serious environmental pollutant that causes a significant threat to humans. Hence, there is a pressing task to remove glyphosate from the environment. Here, we report an excellent Fe3Ce1Ox catalyst synthesized via the one-step co-precipitation method for activating peroxymonosulfate (PMS) to degrade glyphosate at 25 °C. As a result, glyphosate is completely degraded with a high degradation rate of 400 mg L-1·h-1, and the TOC and TN removals are 85.6% and 80.8%, respectively. As proven by systematic characterizations, the Fe-Ce synergistic effect plays a significant role in promoting PMS activation. The main reactive oxygen species for glyphosate oxidation are surface-bound SO4-· and ·OH, produced by activating PMS by electron transfer between Fe2+/Fe3+ and Ce3+/Ce4+ of Fe3Ce1Ox. In light of the products determined, the possible degradation process of glyphosate is also speculated: C-N and C-P bonds of glyphosate molecules are attacked to form aminomethylphosphonic acid (AMPA) and orthophosphate (PO43-) by surface-bound SO4-· and ·OH that continuously mineralize and dephosphorylate AMPA to generate small molecules and inorganic ions, such as H2O and PO43-. The results of this work suggest that Fe3Ce1Ox/PMS could provide a potential candidate for efficiently removing organic compounds containing nitrogen or phosphorus from wastewater.
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Affiliation(s)
- Lingxiao Xue
- School of Environmental Science & Engineering, Tianjin University, Jinnan District, Tianjin, 300350, China
| | - Lijing Hao
- School of Environmental Science & Engineering, Tianjin University, Jinnan District, Tianjin, 300350, China
| | - Hui Ding
- School of Environmental Science & Engineering, Tianjin University, Jinnan District, Tianjin, 300350, China.
| | - Rui Liu
- School of Environmental Science & Engineering, Tianjin University, Jinnan District, Tianjin, 300350, China
| | - Dan Zhao
- School of Environmental Science & Engineering, Tianjin University, Jinnan District, Tianjin, 300350, China
| | - Jianfeng Fu
- School of Environmental Science & Engineering, Tianjin University, Jinnan District, Tianjin, 300350, China
| | - Mengling Zhang
- Huadian Aqua Membrane Separation Technology (Tianjin) Co. Ltd., Tianjin, 301700, China
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28
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Bakaraki Turan N, Zaman BT, Chormey DS, Onkal Engin G, Bakırdere S. Atrazine: From Detection to Remediation – A Minireview. ANAL LETT 2021. [DOI: 10.1080/00032719.2021.1937196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Nouha Bakaraki Turan
- Civil Engineering Faculty, Environmental Engineering Department, Yildiz Technical University, İstanbul, Turkey
| | - Buse Tuğba Zaman
- Faculty of Art and Science, Department of Chemistry, Yildiz Technical University, İstanbul, Turkey
| | - Dotse Selali Chormey
- Faculty of Art and Science, Department of Chemistry, Yildiz Technical University, İstanbul, Turkey
| | - Güleda Onkal Engin
- Civil Engineering Faculty, Environmental Engineering Department, Yildiz Technical University, İstanbul, Turkey
| | - Sezgin Bakırdere
- Faculty of Art and Science, Department of Chemistry, Yildiz Technical University, İstanbul, Turkey
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29
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Zhou R, Liu R, Li W, Wang Y, Wan X, Song N, Yu Y, Xu J, Bu Y, Zhang A. The use of different sublethal endpoints to monitor atrazine toxicity in nematode Caenorhabditis elegans. CHEMOSPHERE 2021; 274:129845. [PMID: 33979940 DOI: 10.1016/j.chemosphere.2021.129845] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/28/2021] [Accepted: 01/31/2021] [Indexed: 06/12/2023]
Abstract
In this work, Caenorhabditis elegans was employed as an in vivo model to determine the toxic effects of atrazine at different concentrations. After the exposure period from the larval stage L1 to adulthood day 1, atrazine (10 mg/L) significantly decreased the body length and lifespan of nematodes. In addition, exposure to ≥0.01 mg/L atrazine remarkably increased the intestinal reactive oxygen species (ROS) levels and reduced locomotion behavior of nematodes, while exposure to ≥ 1 mg/L atrazine decreased the brood size of nematodes. Moreover, atrazine (0.001-0.1 mg/L) upregulated the expression levels of hsp-6::GFP and hsp-6/60 in nematodes, indicating the activation of mitochondrial unfolded protein response (mtUPR). On the contrary, atrazine (1-10 mg/L) downregulated the expression levels of hsp-6::GFP and hsp-6/60 in nematodes. Furthermore, mtUPR induction governed by the RNAi knockdown of atfs-1 could increase the vulnerability of nematodes against atrazine toxicity. Overall, our findings highlighted the dynamic responses of nematodes toward different concentrations of atrazine, which could be monitored using different sublethal endpoints as bioindicators.
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Affiliation(s)
- Rong Zhou
- Nanjing Institute of Environmental Science, Ministry of Ecology and Environment, Nanjing, 210042, China; Key Laboratory of Pesticide Environmental Assessment and Pollution Control, Ministry of Ecology and Environment, Nanjing, 210042, China
| | - Ru Liu
- Nanjing Institute of Environmental Science, Ministry of Ecology and Environment, Nanjing, 210042, China
| | - Weixin Li
- Nanjing Institute of Environmental Science, Ministry of Ecology and Environment, Nanjing, 210042, China
| | - Yixuan Wang
- Nanjing Institute of Environmental Science, Ministry of Ecology and Environment, Nanjing, 210042, China; Key Laboratory of Pesticide Environmental Assessment and Pollution Control, Ministry of Ecology and Environment, Nanjing, 210042, China
| | - Xiang Wan
- Nanjing Institute of Environmental Science, Ministry of Ecology and Environment, Nanjing, 210042, China; Key Laboratory of Pesticide Environmental Assessment and Pollution Control, Ministry of Ecology and Environment, Nanjing, 210042, China
| | - Ninghui Song
- Nanjing Institute of Environmental Science, Ministry of Ecology and Environment, Nanjing, 210042, China; Key Laboratory of Pesticide Environmental Assessment and Pollution Control, Ministry of Ecology and Environment, Nanjing, 210042, China
| | - Yue Yu
- Nanjing Institute of Environmental Science, Ministry of Ecology and Environment, Nanjing, 210042, China; Key Laboratory of Pesticide Environmental Assessment and Pollution Control, Ministry of Ecology and Environment, Nanjing, 210042, China
| | - Jiaming Xu
- Nanjing Institute of Environmental Science, Ministry of Ecology and Environment, Nanjing, 210042, China; College of Forestry, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
| | - Yuanqing Bu
- Nanjing Institute of Environmental Science, Ministry of Ecology and Environment, Nanjing, 210042, China; Key Laboratory of Pesticide Environmental Assessment and Pollution Control, Ministry of Ecology and Environment, Nanjing, 210042, China; Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science & Technology, Nanjing, 210044, China.
| | - Aiguo Zhang
- Nanjing Institute of Environmental Science, Ministry of Ecology and Environment, Nanjing, 210042, China.
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30
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De María M, Silva-Sanchez C, Kroll KJ, Walsh MT, Nouri MZ, Hunter ME, Ross M, Clauss TM, Denslow ND. Chronic exposure to glyphosate in Florida manatee. ENVIRONMENT INTERNATIONAL 2021; 152:106493. [PMID: 33740675 DOI: 10.1016/j.envint.2021.106493] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 05/25/2023]
Abstract
Florida manatees depend on freshwater environments as a source of drinking water and as warm-water refuges. These freshwater environments are in direct contact with human activities where glyphosate-based herbicides are being used. Glyphosate is the most used herbicide worldwide and it is intensively used in Florida as a sugarcane ripener and to control invasive aquatic plants. The objective of the present study was to determine the concentration of glyphosate and its breakdown product, aminomethylphosphonic acid (AMPA), in Florida manatee plasma and assess their exposure to manatees seeking a warm-water refuge in Crystal River (west central Florida), and in South Florida. We analyzed glyphosate's and AMPA's concentrations in Florida manatee plasma (n = 105) collected during 2009-2019 using HPLC-MS/MS. We sampled eight Florida water bodies between 2019 and 2020, three times a year: before, during and after the sugarcane harvest using grab samples and molecular imprinted passive Polar Organic Chemical Integrative Samplers (MIP-POCIS). Glyphosate was present in 55.8% of the sampled Florida manatees' plasma. The concentration of glyphosate has significantly increased in Florida manatee samples from 2009 until 2019. Glyphosate and AMPA were ubiquitous in water bodies. The concentration of glyphosate and AMPA was higher in South Florida than in Crystal River, particularly before and during the sugarcane harvest when Florida manatees depend on warm water refuges. Based on our results, Florida manatees were chronically exposed to glyphosate and AMPA, during and beyond the glyphosate applications to sugarcane, possibly associated with multiple uses of glyphosate-based herbicides for other crops or to control aquatic weeds. This chronic exposure in Florida water bodies may have consequences for Florida manatees' immune and renal systems which may further be compounded by other environmental exposures such as red tide or cold stress.
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Affiliation(s)
- Maite De María
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL 32611, USA; Aquatic Animal Health Program, College of Veterinary Medicine, University of Florida, PO Box 100136, Gainesville, FL 32610, USA.
| | - Cecilia Silva-Sanchez
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL 32611, USA.
| | - Kevin J Kroll
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL 32611, USA.
| | - Michael T Walsh
- Aquatic Animal Health Program, College of Veterinary Medicine, University of Florida, PO Box 100136, Gainesville, FL 32610, USA.
| | - Mohammad-Zaman Nouri
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL 32611, USA.
| | - Margaret E Hunter
- U.S. Geological Survey, Wetland and Aquatic Research Center, Gainesville, FL 32653, United States.
| | - Monica Ross
- Clearwater Marine Aquarium, 249 Windward Passage, Clearwater, FL 33767, USA.
| | - Tonya M Clauss
- Georgia Aquarium, Atlanta, Georgia, 225 Baker Street Northwest, Atlanta, GA 30313, USA.
| | - Nancy D Denslow
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL 32611, USA; Department of Biochemistry and Molecular Biology, University of Florida, Gainesville, FL 32610, USA.
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31
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Hanson ML, Brain RA. A Method to Screen for Consistency of Effect in Laboratory Toxicity Tests: A Case Study with Anurans and the Herbicide Atrazine. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 81:123-132. [PMID: 33891147 DOI: 10.1007/s00244-021-00847-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 04/08/2021] [Indexed: 06/12/2023]
Abstract
This paper presents a semiquantitative method to help ecotoxicologists evaluate the consistency of data within the available peer-reviewed literature. In this case study, we queried whether there is consistent evidence of direct toxicity in Anurans exposed to atrazine at concentrations ≤ 100 μg/L under laboratory conditions. Atrazine was selected because of the relatively large repository of Anuran toxicity data. To accomplish this, we interrogated available data found in recent quantitative weight-of-evidence risk assessments for atrazine with a series of yes or no questions developed a priori. The questions examined consistency of reported effects within and between studies, within and between species, and across a wide range of endpoints categories (e.g., survivorship, growth and development, reproduction). The analysis found no compelling evidence of a consistent direct effect in Anurans around growth and development, reproduction, or survivorship at concentrations of up to at least 100 μg/L atrazine in laboratory studies. Further work is needed to refine the approach, including accounting for the magnitude of the reported effects. However, we recommend that ecotoxicologists employ some method of formal consistency of effects assessment method routinely before performing toxicity tests, in the contextualizing of new data, and in reviews of contaminants.
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Affiliation(s)
- Mark L Hanson
- Department of Environment and Geography, University of Manitoba, Winnipeg, MB, Canada.
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32
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Smalling KL, Devereux OH, Gordon SE, Phillips PJ, Blazer VS, Hladik ML, Kolpin DW, Meyer MT, Sperry AJ, Wagner T. Environmental and anthropogenic drivers of contaminants in agricultural watersheds with implications for land management. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 774:145687. [PMID: 33609846 DOI: 10.1016/j.scitotenv.2021.145687] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/01/2021] [Accepted: 02/03/2021] [Indexed: 06/12/2023]
Abstract
If not managed properly, modern agricultural practices can alter surface and groundwater quality and drinking water resources resulting in potential negative effects on aquatic and terrestrial ecosystems. Exposure to agriculturally derived contaminant mixtures has the potential to alter habitat quality and negatively affect fish and other aquatic organisms. Implementation of conservation practices focused on improving water quality continues to increase particularly in agricultural landscapes throughout the United States. The goal of this study was to determine the consequences of land management actions on the primary drivers of contaminant mixtures in five agricultural watersheds in the Chesapeake Bay, the largest watershed of the Atlantic Seaboard in North America where fish health issues have been documented for two decades. Surface water was collected and analyzed for 301 organic contaminants to determine the benefits of implemented best management practices (BMPs) designed to reduce nutrients and sediment to streams in also reducing contaminants in surface waters. Of the contaminants measured, herbicides (atrazine, metolachlor), phytoestrogens (formononetin, genistein, equol), cholesterol and total estrogenicity (indicator of estrogenic response) were detected frequently enough to statistically compare to seasonal flow effects, landscape variables and BMP intensity. Contaminant concentrations were often positively correlated with seasonal stream flow, although the magnitude of this effect varied by contaminant across seasons and sites. Land-use and other less utilized landscape variables including biosolids, manure and pesticide application and percent phytoestrogen producing crops were inversely related with site-average contaminant concentrations. Increased BMP intensity was negatively related to contaminant concentrations indicating potential co-benefits of BMPs for contaminant reduction in the studied watersheds. The information gained from this study will help prioritize ecologically relevant contaminant mixtures for monitoring and contributes to understanding the benefits of BMPs on improving surface water quality to better manage living resources in agricultural landscapes inside and outside the Chesapeake Bay watershed.
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Affiliation(s)
- Kelly L Smalling
- U.S. Geological Survey New Jersey Water Science Center, Lawrenceville, NJ 08648, USA.
| | | | - Stephanie E Gordon
- U.S. Geological Survey Leetown Science Center, National Fish Health Research Laboratory, Kearneysville, WV 25430, USA.
| | - Patrick J Phillips
- U.S. Geological Survey New York Water Science Center, Troy, NY 12180, USA.
| | - Vicki S Blazer
- U.S. Geological Survey Leetown Science Center, National Fish Health Research Laboratory, Kearneysville, WV 25430, USA
| | - Michelle L Hladik
- U.S. Geological Survey California Water Science Center Sacramento, CA 95819, USA.
| | - Dana W Kolpin
- U.S. Geological Survey Central Midwest Water Science Center Iowa City, IA 52240, USA.
| | - Michael T Meyer
- U.S. Geological Survey Kansas Water Science Center, Lawrence, KS 66046, USA.
| | - Adam J Sperry
- U.S. Geological Survey Leetown Science Center, National Fish Health Research Laboratory, Kearneysville, WV 25430, USA
| | - Tyler Wagner
- U.S. Geological Survey, Pennsylvania Cooperative Fish and Wildlife Research Unit, Pennsylvania State University, 402 Forest Resources Building, University Park, PA 16802, USA.
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33
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Bradley PM, Journey CA, Romanok KM, Breitmeyer SE, Button DT, Carlisle DM, Huffman BJ, Mahler BJ, Nowell LH, Qi SL, Smalling KL, Waite IR, Van Metre PC. Multi-region assessment of chemical mixture exposures and predicted cumulative effects in USA wadeable urban/agriculture-gradient streams. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 773:145062. [PMID: 33940714 DOI: 10.1016/j.scitotenv.2021.145062] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/16/2020] [Accepted: 01/05/2021] [Indexed: 06/12/2023]
Abstract
Chemical-contaminant mixtures are widely reported in large stream reaches in urban/agriculture-developed watersheds, but mixture compositions and aggregate biological effects are less well understood in corresponding smaller headwaters, which comprise most of stream length, riparian connectivity, and spatial biodiversity. During 2014-2017, the U.S. Geological Survey (USGS) measured 389 unique organic analytes (pharmaceutical, pesticide, organic wastewater indicators) in 305 headwater streams within four contiguous United States (US) regions. Potential aquatic biological effects were evaluated for estimated maximum and median exposure conditions using multiple lines of evidence, including occurrence/concentrations of designed-bioactive pesticides and pharmaceuticals and cumulative risk screening based on vertebrate-centric ToxCast™ exposure-response data and on invertebrate and nonvascular plant aquatic life benchmarks. Mixed-contaminant exposures were ubiquitous and varied, with 78% (304) of analytes detected at least once and cumulative maximum concentrations up to more than 156,000 ng/L. Designed bioactives represented 83% of detected analytes. Contaminant summary metrics correlated strong-positive (rho (ρ): 0.569-0.719) to multiple watershed-development metrics, only weak-positive to point-source discharges (ρ: 0.225-353), and moderate- to strong-negative with multiple instream invertebrate metrics (ρ: -0.373 to -0.652). Risk screening indicated common exposures with high probability of vertebrate-centric molecular effects and of acute toxicity to invertebrates, respectively. The results confirm exposures to broad and diverse contaminant mixtures and provide convincing multiple lines of evidence that chemical contaminants contribute substantially to adverse multi-stressor effects in headwater-stream communities.
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Joni AAM, Mohamat-Yusuff F, Noor NAM, Mohamed KN, Ash'aari ZH, Kusin FM, Zulkeflee Z, Zulkifli SZ, Ismail A, Arshad A. Baseline distribution and sources of selected agricultural runoff in the bottom water of an active cockle farming area, Bagan Pasir, Perak, Malaysia. MARINE POLLUTION BULLETIN 2021; 167:112276. [PMID: 33901978 DOI: 10.1016/j.marpolbul.2021.112276] [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: 12/10/2020] [Revised: 03/15/2021] [Accepted: 03/16/2021] [Indexed: 06/12/2023]
Abstract
This paper aims to study the spatial and temporal patterns of selected agricultural runoff, specifically in terms of glyphosate, nitrate, and ammonia in bottom water, as well as their possible sources, within an active cockle farming area in Bagan Pasir, Perak, Malaysia. Samples were taken along the cockle farming area from March to November 2019. Glyphosate was analyzed using HPLC with both extraction and derivatization methods using 9-fluorenyl-methyl chloroformate (FMOC-Cl), while nitrate and ammonia levels were determined using the standard Hach method. Generally, glyphosate, nitrate, and ammonia were present within the study site with the average concentration of 37.44 ± 12.27 μg/l, 1.65 ± 0.52 mg/l, and 0.37 ± 0.19 mg/l, respectively. The results suggest that glyphosate and nitrate might be derived from an inland source, while a uniform and low level of ammonia suggested might originate from lithogenic origins. Continuous monitoring remains encouraged.
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Affiliation(s)
- Amirul Azuan Md Joni
- Department of Environmental Sciences, Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Ferdius Mohamat-Yusuff
- Department of Environmental Sciences, Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; International Institute of Aquaculture & Aquatic Sciences (I-AQUAS), Universiti Putra Malaysia, Jalan Kemang 6, Batu 7, Teluk Kemang, 71050 Port Dickson, Negeri Sembilan, Malaysia.
| | - Nurhanin Aqila Mohammed Noor
- Department of Environmental Sciences, Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Khairul Nizam Mohamed
- Department of Environmental Sciences, Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Zulfa Hanan Ash'aari
- Department of Environmental Sciences, Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Faradiella Mohd Kusin
- Department of Environmental Sciences, Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Zufarzaana Zulkeflee
- Department of Environmental Sciences, Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Syaizwan Zahmir Zulkifli
- Department of Biology, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Ahmad Ismail
- Department of Biology, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Aziz Arshad
- International Institute of Aquaculture & Aquatic Sciences (I-AQUAS), Universiti Putra Malaysia, Jalan Kemang 6, Batu 7, Teluk Kemang, 71050 Port Dickson, Negeri Sembilan, Malaysia; Department of Aquaculture, Faculty of Agriculture, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
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35
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Bachetti RA, Urseler N, Morgante V, Damilano G, Porporatto C, Agostini E, Morgante C. Monitoring of Atrazine Pollution and its Spatial-Seasonal Variation on Surface Water Sources of an Agricultural River Basin. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 106:929-935. [PMID: 34047806 DOI: 10.1007/s00128-021-03264-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 05/15/2021] [Indexed: 06/12/2023]
Abstract
Surface water sources are greatly impacted in areas with major agricultural land use. The atrazine quantification in surface waters as well as the spatial-temporal patterns of this herbicide was studied to detect pollution hotspots and to understand the putative factors responsible of its occurrence at the Ctalamochita river basin. The samples were collected on the aeolian fluvial plain of the river basin during five consecutive years. The results showed the high ubiquity of this compound and several sites with hazardous concentration (exceeding 0.1 µg/L international guidelines). The frequencies of quantification range from 67 to 100% in spring and 33%-67% in autumn. The atrazine content in surface water increased during the warm-rainy season, as consequence of atrazine application events (coinciding to the prevalent crop type). Overall, the study highlights the factors that could have favored atrazine pollution in the river basin such as land use, transport by runoff processes and atmospheric deposition.
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Affiliation(s)
- Romina A Bachetti
- IAP de Ciencias Básicas y Aplicadas, Universidad Nacional de Villa María, A. Jauretche 1555, CP 5900, Villa María, Córdoba, Argentina.
| | - Noelia Urseler
- IAP de Ciencias Básicas y Aplicadas, Universidad Nacional de Villa María, A. Jauretche 1555, CP 5900, Villa María, Córdoba, Argentina
| | - Verónica Morgante
- Programa Institucional de Fomento a la Investigación, Desarrollo e Innovación, Universidad Tecnológica Metropolitana, Ignacio Valdivieso 2409, CP 8940577, San Joaquín, Santiago, Chile
- Centro de Investigación en Recursos Naturales y Sustentabilidad (CIRENYS), Universidad Bernardo O'Higgins, Avenida Viel 1497, CP 8370993, Santiago, Chile
| | - Gabriela Damilano
- Departamento de Educación, Facultad de Ciencias Humanas, Universidad Nacional de Río Cuarto, Ruta Nacional 36 Km 601, CP 5800, Río Cuarto, Córdoba, Argentina
| | - Carina Porporatto
- Centro de Investigaciones y Transferencia de Villa María, CONICET-Universidad Nacional de Villa María, Córdoba, Argentina
| | - Elizabeth Agostini
- Departamento de Biología Molecular, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Instituto de Biotecnología Ambiental y Salud, Universidad Nacional de Río Cuarto, INBIAS-CONICET, Ruta Nacional 36 Km 601, CP 5800, Río Cuarto, Córdoba, Argentina
| | - Carolina Morgante
- IAP de Ciencias Básicas y Aplicadas, Universidad Nacional de Villa María, A. Jauretche 1555, CP 5900, Villa María, Córdoba, Argentina
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36
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Bhatt P, Joshi T, Bhatt K, Zhang W, Huang Y, Chen S. Binding interaction of glyphosate with glyphosate oxidoreductase and C-P lyase: Molecular docking and molecular dynamics simulation studies. JOURNAL OF HAZARDOUS MATERIALS 2021; 409:124927. [PMID: 33450511 DOI: 10.1016/j.jhazmat.2020.124927] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 12/14/2020] [Accepted: 12/20/2020] [Indexed: 05/12/2023]
Abstract
Widespread application of glyphosate poses a threat to living organisms. Microbial strains are able to degrade glyphosate via contrasting metabolic pathways with the help of enzymes. Glyphosate oxidoreductase (GOX) and C-P lyase are the key enzymes for the biodegradation of glyphosate and its intermediate metabolite aminomethylphosphonic acid (AMPA) in microbes. The microbial degradation of glyphosate has been reported, but the underlying molecular mechanism is still unclear. Therefore, in this study, the interaction mechanism of GOX and C-P lyase with glyphosate and AMPA were investigated by using molecular docking and molecular dynamics (MD) simulations. The results indicate that glyphosate contacts with the active site of GOX and C-P lyase by hydrogen bonds as well as hydrophobic and van der Waals interactions in aqueous solution to maintain its stability. The presence of glyphosate and AMPA in the active site significantly changes the conformation of GOX and C-P lyase. The results of the MD simulations confirm that GOX and C-P lyase complexes are stable during the catalytic reaction. This study offers a molecular level of understanding of the expression and function of GOX and C-P lyase for the bioremediation of glyphosate.
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Affiliation(s)
- Pankaj Bhatt
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Tushar Joshi
- Department of Biotechnology, Kumaun University, Bhimtal Campus, Bhimtal, Uttarakhand 263136, India
| | - Kalpana Bhatt
- Department of Botany and Microbiology, Gurukul Kangri University, Haridwar, Uttarakhand 249404, India
| | - Wenping Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Yaohua Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Shaohua Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China.
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37
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Mahler BJ, Nowell LH, Sandstrom MW, Bradley PM, Romanok KM, Konrad CP, Van Metre PC. Inclusion of Pesticide Transformation Products Is Key to Estimating Pesticide Exposures and Effects in Small U.S. Streams. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:4740-4752. [PMID: 33689310 DOI: 10.1021/acs.est.0c06625] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Improved analytical methods can quantify hundreds of pesticide transformation products (TPs), but understanding of TP occurrence and potential toxicity in aquatic ecosystems remains limited. We quantified 108 parent pesticides and 116 TPs in more than 3 700 samples from 442 small streams in mostly urban basins across five major regions of the United States. TPs were detected nearly as frequently as parents (90 and 95% of streams, respectively); 102 TPs were detected at least once and 28 were detected in >20% samples in at least one region-TPs of 9 herbicides, 2 fungicides (chlorothalonil and thiophanate-methyl), and 1 insecticide (fipronil) were the most frequently detected. TPs occurred commonly during baseflow conditions, indicating chronic environmental TP exposures to aquatic organisms and the likely importance of groundwater as a TP source. Hazard quotients based on acute aquatic-life benchmarks for invertebrates and nonvascular plants and vertebrate-centric molecular endpoints (sublethal effects) quantify the range of the potential contribution of TPs to environmental risk and highlight several TP exposure-response data gaps. A precautionary approach using equimolar substitution of parent benchmarks or endpoints for missing TP benchmarks indicates that potential aquatic effects of pesticide TPs could be underestimated by an order of magnitude or more.
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Affiliation(s)
- Barbara J Mahler
- U.S. Geological Survey, Oklahoma-Texas Water Science Center, 1505 Ferguson Lane, Austin, Texas 78754, United States
| | - Lisa H Nowell
- U.S. Geological Survey, California Water Science Center, 6000 J Street, Placer Hall, Sacramento, California 95819, United States
| | - Mark W Sandstrom
- U.S. Geological Survey, Strategic Laboratory Science Branch, P.O. Box 25585, Denver, Colorado 80225-0585, United States
| | - Paul M Bradley
- U.S. Geological Survey, South Atlantic Water Science Center, 720 Gracern, Columbia, South Carolina 29210, United States
| | - Kristin M Romanok
- U.S. Geological Survey, New Jersey Water Science Center, 3450 Princeton Pike, Lawrenceville, New Jersey 08648, United States
| | - Christopher P Konrad
- U.S. Geological Survey, Washington Water Science Center, 934 Broadway, Suite 300, Tacoma, Washington 98467, United States
| | - Peter C Van Metre
- U.S. Geological Survey, Oklahoma-Texas Water Science Center, 1505 Ferguson Lane, Austin, Texas 78754, United States
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38
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Ankley GT, Berninger JP, Blackwell BR, Cavallin JE, Collette TW, Ekman DR, Fay KA, Feifarek DJ, Jensen KM, Kahl MD, Mosley JD, Poole ST, Randolph EC, Rearick D, Schroeder AL, Swintek J, Villeneuve DL. Pathway-Based Approaches for Assessing Biological Hazards of Complex Mixtures of Contaminants: A Case Study in the Maumee River. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2021; 40:1098-1122. [PMID: 33270248 PMCID: PMC9554926 DOI: 10.1002/etc.4949] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/16/2020] [Accepted: 11/25/2020] [Indexed: 05/07/2023]
Abstract
Assessment of ecological risks of chemicals in the field usually involves complex mixtures of known and unknown compounds. We describe the use of pathway-based chemical and biological approaches to assess the risk of chemical mixtures in the Maumee River (OH, USA), which receives a variety of agricultural and urban inputs. Fathead minnows (Pimephales promelas) were deployed in cages for 4 d at a gradient of sites along the river and adjoining tributaries in 2012 and during 2 periods (April and June) in 2016, in conjunction with an automated system to collect composite water samples. More than 100 industrial chemicals, pharmaceuticals, and pesticides were detected in water at some of the study sites, with the greatest number typically found near domestic wastewater treatment plants. In 2016, there was an increase in concentrations of several herbicides from April to June at upstream agricultural sites. A comparison of chemical concentrations in site water with single chemical data from vitro high-throughput screening (HTS) assays suggested the potential for perturbation of multiple biological pathways, including several associated with induction or inhibition of different cytochrome P450 (CYP) isozymes. This was consistent with direct effects of water extracts in an HTS assay and induction of hepatic CYPs in caged fish. Targeted in vitro assays and measurements in the caged fish suggested minimal effects on endocrine function (e.g., estrogenicity). A nontargeted mass spectroscopy-based analysis suggested that hepatic endogenous metabolite profiles in caged fish covaried strongly with the occurrence of pesticides and pesticide degradates. These studies demonstrate the application of an integrated suite of measurements to help understand the effects of complex chemical mixtures in the field. Environ Toxicol Chem 2021;40:1098-1122. © 2020 SETAC. This article has been contributed to by US Government employees and their work is in the public domain in the USA.
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Affiliation(s)
- GT Ankley
- US Environmental Protection Agency, Great Lakes Toxicology and Ecology Division, Duluth, Minnesota, USA
- Corresponding Author: Gerald Ankley;
| | - JP Berninger
- US Environmental Protection Agency, Great Lakes Toxicology and Ecology Division, Duluth, Minnesota, USA
| | - BR Blackwell
- US Environmental Protection Agency, Great Lakes Toxicology and Ecology Division, Duluth, Minnesota, USA
| | - JE Cavallin
- US Environmental Protection Agency, Great Lakes Toxicology and Ecology Division, Duluth, Minnesota, USA
| | - TW Collette
- US Environmental Protection Agency, Ecosystem Processes Division, Athens, Georgia, USA
| | - DR Ekman
- US Environmental Protection Agency, Ecosystem Processes Division, Athens, Georgia, USA
| | - KA Fay
- US Environmental Protection Agency, Great Lakes Toxicology and Ecology Division, Duluth, Minnesota, USA
| | - DJ Feifarek
- US Environmental Protection Agency, Great Lakes Toxicology and Ecology Division, Duluth, Minnesota, USA
| | - KM Jensen
- US Environmental Protection Agency, Great Lakes Toxicology and Ecology Division, Duluth, Minnesota, USA
| | - MD Kahl
- US Environmental Protection Agency, Great Lakes Toxicology and Ecology Division, Duluth, Minnesota, USA
| | - JD Mosley
- US Environmental Protection Agency, Ecosystem Processes Division, Athens, Georgia, USA
| | - ST Poole
- US Environmental Protection Agency, Great Lakes Toxicology and Ecology Division, Duluth, Minnesota, USA
| | - EC Randolph
- US Environmental Protection Agency, Great Lakes Toxicology and Ecology Division, Duluth, Minnesota, USA
| | - D Rearick
- General Dynamics Information Technology, Great Lakes Toxicology and Ecology Division Duluth, Minnesota, USA
| | - AL Schroeder
- University of Minnesota – Crookston, Math, Science, and Technology Department, Crookston, Minnesota, USA
| | - J Swintek
- Badger Technical Services, Great Lakes Toxicology and Ecology Division, Duluth, Minnesota. USA
| | - DL Villeneuve
- US Environmental Protection Agency, Great Lakes Toxicology and Ecology Division, Duluth, Minnesota, USA
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39
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Dionne E, Hanson ML, Anderson JC, Brain RA. Chronic toxicity of technical atrazine to the fathead minnow (Pimephales promelas) during a full life-cycle exposure and an evaluation of the consistency of responses. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 755:142589. [PMID: 33065508 DOI: 10.1016/j.scitotenv.2020.142589] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/12/2020] [Accepted: 09/21/2020] [Indexed: 06/11/2023]
Abstract
Fathead minnows (Pimephales promelas) were continuously exposed to the herbicide atrazine (0.15, 0.25, 0.46, 0.99, and 2.0 mg a.i./L, plus dilution water and solvent controls) for a complete life cycle (274 days). Concentrations of atrazine up to 2.0 mg a.i./L did not significantly reduce hatching success, larval survival at 30 or 60 days post-hatch, or reproduction (eggs/spawn, total eggs, spawns/female, or eggs/female) in the F0 generation. However, at 60 days of exposure, total length and total survival to study completion were significantly reduced in ≥0.46 mg a.i./L and ≥ 0.99 mg a.i./L treatments, respectively. In the F1 generation, hatchability of embryos at ≥0.25 mg a.i./L (range 74-82%) was significantly less than that of pooled control organisms (86%). Following 30 days' post-hatch exposure, F1 survival was not significantly different from pooled control for any treatment. Finally, tissues representing major life stages had bioconcentration factors ranging from 3.7× (F1 embryos, <24 h) to 8.5× (F0 adults), indicating little to no evidence of bioconcentration. We developed a series of questions to assess the consistency of observed responses in order to place the data in context with the wider available and relevant literature (e.g., Observed between studies? Observed between species? Observed at lower levels of biological organization?). The analysis for consistency supports the conclusion that atrazine does not pose a significant chronic risk to freshwater fish in terms of growth, reproduction, or survivorship at concentrations of up to at least 100 μg/L.
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Affiliation(s)
| | - Mark L Hanson
- Department of Environment and Geography, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Julie C Anderson
- Department of Environment and Geography, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
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Herrera‐Gallardo BE, Guzmán‐Gil R, Colín‐Luna JA, García‐Martínez JC, León‐Santiesteban HH, González‐Brambila OM, González‐Brambila MM. Atrazine biodegradation in soil by
Aspergillus niger
. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.23924] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Raymundo Guzmán‐Gil
- Departamento de Energía Universidad Autónoma Metropolitana, Unidad Azcapotzalco Ciudad de México Mexico
| | - José A. Colín‐Luna
- Departamento de Energía Universidad Autónoma Metropolitana, Unidad Azcapotzalco Ciudad de México Mexico
| | - Julio C. García‐Martínez
- Departamento de Energía Universidad Autónoma Metropolitana, Unidad Azcapotzalco Ciudad de México Mexico
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41
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Hu N, Xu Y, Sun C, Zhu L, Sun S, Zhao Y, Hu C. Removal of atrazine in catalytic degradation solutions by microalgae Chlorella sp. and evaluation of toxicity of degradation products via algal growth and photosynthetic activity. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 207:111546. [PMID: 33254405 DOI: 10.1016/j.ecoenv.2020.111546] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 08/27/2020] [Accepted: 10/20/2020] [Indexed: 06/12/2023]
Abstract
Degradation solutions containing atrazine need to be further purified before they are discharged into the aquatic environment. With the objectives of evaluating removal capacity of the microalga Chlorella sp. toward atrazine in degradation solutions and toxicity of the degradation products, we investigated the removal efficiency (RE) and bioaccumulation of atrazine in the microalgae after an 8 d exposure to diluted degraded solutions containing 40 μg/L and 80 μg/L of atrazine as well as degradation products in the present study. Moreover, pure atrazine solutions with similar concentrations were simultaneously inoculated with the microalgae in order to distinguish the influence of the products. The photocatalytic degradation results showed that 31.4% of atrazine was degraded after 60 min, and three degradation products, desisopropyl-atrazine (DIA), desethyl-atrazine (DEA), and desethyl-desisopropyl-atrazine (DEIA) were detected. After an 8-d exposure, 83.0% and 64.3% of atrazine were removed from the degraded solutions containing 40 μg/L and 80 μg/L of atrazine, respectively. In comparison with the control, i.e., pure atrazine solution with equal concentration, Chlorella sp. in the degraded atrazine solution showed lower RE and growth rate. The photosynthetic parameters, especially performance index (PIABS), clearly displayed the differences between treatments. The values of PIABS of Chlorella sp. cultured in degradation atrazine for 8 days were significantly lower (P < 0.01) than that in the corresponding pure atrazine, suggesting potential inhibitory effect of degradation products on the microalgae. Atrazine and the degradation products inhibited algal photosynthesis via depressed light absorption and electron transport, and reduced utilization of light energy via energy dissipation. Our results demonstrated that microalgae Chlorella sp. had an encouraging atrazine removal potential and the degradation products of atrazine may inhibit algal growth and removal capability. This study may be useful for the application of microalgae in herbicide wastewater treatment and understanding algal removal of atrazine in natural aquatic environment.
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Affiliation(s)
- Naitao Hu
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China
| | - Yinfeng Xu
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, PR China
| | - Chen Sun
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, PR China
| | - Lianwen Zhu
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, PR China
| | - Shiqing Sun
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, PR China
| | - Yongjun Zhao
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, PR China
| | - Changwei Hu
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, PR China.
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42
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Wan Y, Tran TM, Nguyen VT, Wang A, Wang J, Kannan K. Neonicotinoids, fipronil, chlorpyrifos, carbendazim, chlorotriazines, chlorophenoxy herbicides, bentazon, and selected pesticide transformation products in surface water and drinking water from northern Vietnam. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 750:141507. [PMID: 32841807 DOI: 10.1016/j.scitotenv.2020.141507] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 08/02/2020] [Accepted: 08/03/2020] [Indexed: 06/11/2023]
Abstract
Studies on the occurrence of emerging pesticides in surface and drinking water in Vietnam are limited. In this study, lake water (n = 7), river water (n = 1), tap water (n = 46), and bottled water (n = 3) collected from Hanoi and other four provinces in northern Vietnam were analyzed for selected pesticides (including insecticides such as neonicotinoids, fipronil, and chlorpyrifos; fungicide carbendazim; herbicides such as atrazine, terbuthylazine, simazine, 2,4-dichlorophenoxyacetic acid, 2-methyl-4-chlorophenoxyacetic acid, and bentazon) and some of their degradates by liquid chromatography-tandem mass spectrometry. Carbendazim (median: 86.7 ng/L) and triazines (49.3 ng/L) were the major pesticides found in lake water samples, followed by neonicotinoids and their degradation products (15.1 ng/L), chlorpyrifos and its degradate (13.4 ng/L), fipronil and its degradates (3.76 ng/L), chlorophenoxy acid herbicides (2.10 ng/L), and bentazon (0.62 ng/L). Triazines (164 ng/L) were the major pesticides in river water. Higher concentrations (median: 39.3 ng/L; range: 1.20-127) of selected pesticides were found in tap water from Hanoi than those from four other provinces studied (5.49 ng/L; 4.73-66.8 ng/L). Bottled water samples collected from Hanoi contained lower concentrations of pesticide residues (median: 3.54 ng/L, range: 2.18-8.09) than those of tap water samples. The calculated risks from pesticide exposure through ingestion of tap water by the general populations were low. However, fipronil concentrations in lake water exceeded the benchmark value recommended for freshwater in the United States or the Netherlands. Degradation of acetamiprid into desmethyl-acetamiprid was found in lake water.
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Affiliation(s)
- Yanjian Wan
- Institute of Environmental Health, Wuhan Centers for Disease Prevention & Control, Wuhan, Hubei 430024, PR China.
| | - Tri Manh Tran
- Faculty of Chemistry, University of Science, Vietnam National University, 19 Le Thanh Tong, Hoan Kiem, Hanoi 100000, Viet Nam.
| | - Vinh Thi Nguyen
- Faculty of Chemistry, University of Science, Vietnam National University, 19 Le Thanh Tong, Hoan Kiem, Hanoi 100000, Viet Nam.
| | - Aizhen Wang
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China.
| | - Jiawei Wang
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China.
| | - Kurunthachalam Kannan
- Department of Pediatrics and Department of Environmental Medicine, New York University School of Medicine, New York, NY 10016, USA.
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Feng D, Soric A, Boutin O. Treatment technologies and degradation pathways of glyphosate: A critical review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 742:140559. [PMID: 32629265 DOI: 10.1016/j.scitotenv.2020.140559] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/25/2020] [Accepted: 06/25/2020] [Indexed: 06/11/2023]
Abstract
Glyphosate is one of the most widely used post-emergence broad-spectrum herbicides in the world. This molecule has been frequently detected in aqueous environment and can cause adverse effects to plants, animals, microorganisms, and humans. This review offers a comparative assessment of current treatment methods (physical, biological, and advanced oxidation process) for glyphosate wastewaters, considering their advantages and drawbacks. As for other molecules, adsorption does not destroy glyphosate. It can be used before other processes, if glyphosate concentrations are very high, or after, to decrease the final concentration of glyphosate and its by-products. Most of biological and oxidation processes can destroy glyphosate molecules, leading to by-products (the main ones being AMAP and sarcosine) that can be or not affected by these processes. This point is of major importance to control process efficiency. That is the reason why a specific focus on glyphosate degradation pathways by biological treatment or different advanced oxidation processes is proposed. However, one process is usually not efficient enough to reach the required standards. Therefore, the combination of processes (for instance biological and oxidation ones) seems to be high-performance technologies for the treatment of glyphosate-containing wastewater, due to their potential to overcome some drawbacks of each individual process. Finally, this review provides indications for future work for different treatment processes to increase their performances and gives some insights into the treatment of glyphosate or other organic contaminants in wastewater.
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Affiliation(s)
- Dan Feng
- Aix Marseille University, CNRS, Centrale Marseille, M2P2, Marseille, France.
| | - Audrey Soric
- Aix Marseille University, CNRS, Centrale Marseille, M2P2, Marseille, France.
| | - Olivier Boutin
- Aix Marseille University, CNRS, Centrale Marseille, M2P2, Marseille, France.
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44
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Meftaul IM, Venkateswarlu K, Dharmarajan R, Annamalai P, Asaduzzaman M, Parven A, Megharaj M. Controversies over human health and ecological impacts of glyphosate: Is it to be banned in modern agriculture? ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 263:114372. [PMID: 32203845 DOI: 10.1016/j.envpol.2020.114372] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 02/09/2020] [Accepted: 03/12/2020] [Indexed: 05/27/2023]
Abstract
Glyphosate, introduced by Monsanto Company under the commercial name Roundup in 1974, became the extensively used herbicide worldwide in the last few decades. Glyphosate has excellent properties of fast sorption in soil, biodegradation and less toxicity to nontarget organisms. However, glyphosate has been reported to increase the risk of cancer, endocrine-disruption, celiac disease, autism, effect on erythrocytes, leaky-gut syndrome, etc. The reclassification of glyphosate in 2015 as 'probably carcinogenic' under Group 2A by the International Agency for Research on Cancer has been broadly circulated by anti-chemical and environmental advocacy groups claiming for restricted use or ban of glyphosate. In contrast, some comprehensive epidemiological studies involving farmers with long-time exposure to glyphosate in USA and elsewhere coupled with available toxicological data showed no correlation with any kind of carcinogenic or genotoxic threat to humans. Moreover, several investigations confirmed that the surfactant, polyethoxylated tallow amine (POEA), contained in the formulations of glyphosate like Roundup, is responsible for the established adverse impacts on human and ecological health. Subsequent to the evolution of genetically modified glyphosate-resistant crops and the extensive use of glyphosate over the last 45 years, about 38 weed species developed resistance to this herbicide. Consequently, its use in the recent years has been either restricted or banned in 20 countries. This critical review on glyphosate provides an overview of its behaviour, fate, detrimental impacts on ecological and human health, and the development of resistance in weeds and pathogens. Thus, the ultimate objective is to help the authorities and agencies concerned in resolving the existing controversies and in providing the necessary regulations for safer use of the herbicide. In our opinion, glyphosate can be judiciously used in agriculture with the inclusion of safer surfactants in commercial formulations sine POEA, which is toxic by itself is likely to increase the toxicity of glyphosate.
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Affiliation(s)
- Islam Md Meftaul
- Global Centre for Environmental Remediation (GCER), Faculty of Science, The University of Newcastle, Callaghan, NSW 2308, Australia; Department of Agricultural Chemistry, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh
| | - Kadiyala Venkateswarlu
- Formerly Department of Microbiology, Sri Krishnadevaraya University, Anantapuramu 515003, India
| | - Rajarathnam Dharmarajan
- Global Centre for Environmental Remediation (GCER), Faculty of Science, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Prasath Annamalai
- Global Centre for Environmental Remediation (GCER), Faculty of Science, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Md Asaduzzaman
- NSW Department of Primary Industries, Pine Gully Road, Wagga Wagga, NSW 2650, Australia
| | - Aney Parven
- Global Centre for Environmental Remediation (GCER), Faculty of Science, The University of Newcastle, Callaghan, NSW 2308, Australia; Department of Agricultural Chemistry, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh
| | - Mallavarapu Megharaj
- Global Centre for Environmental Remediation (GCER), Faculty of Science, The University of Newcastle, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, NSW 2308, Australia.
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45
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McClure CM, Smalling KL, Blazer VS, Sperry AJ, Schall MK, Kolpin DW, Phillips PJ, Hladik ML, Wagner T. Spatiotemporal variation in occurrence and co-occurrence of pesticides, hormones, and other organic contaminants in rivers in the Chesapeake Bay Watershed, United States. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 728:138765. [PMID: 32344224 DOI: 10.1016/j.scitotenv.2020.138765] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 04/14/2020] [Accepted: 04/15/2020] [Indexed: 05/22/2023]
Abstract
Investigating the spatiotemporal dynamics of contaminants in surface water is crucial to better understand how introduced chemicals are interacting with and potentially influencing aquatic organisms and environments. Within the Chesapeake Bay Watershed, United States, there are concerns about the potential role of contaminant exposure on fish health. Evidence suggests that exposure to contaminants in surface water is causing immunosuppression and intersex in freshwater fish species. Despite these concerns, there is a paucity of information regarding the complex dynamics of contaminant occurrence and co-occurrence in surface water across both space and time. To address these concerns, we applied a Bayesian hierarchical joint-contaminant model to describe the occurrence and co-occurrence patterns of 28 contaminants and total estrogenicity across six river sites and over three years. We found that seasonal occurrence patterns varied by contaminant, with the highest occurrence probabilities during the spring and summer months. Additionally, we found that the proportion of agricultural landcover in the immediate catchment, as well as stream discharge, did not have a significant effect on the occurrence probabilities of most compounds. Four pesticides (atrazine, metolachlor, fipronil and simazine) co-occurred across sites after accounting for environmental covariates. These results provide baseline information on the contaminant occurrence patterns of several classes of compounds within the Chesapeake Bay Watershed. Understanding the spatiotemporal dynamics of contaminants in surface water is the first step in investigating the effects of contaminant exposure on fisheries and aquatic environments.
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Affiliation(s)
- Catherine M McClure
- Pennsylvania Cooperative Fish and Wildlife Research Unit, Department of Ecosystem Science and Management, 413 Forest Resource Building, The Pennsylvania State University, University Park, PA 16802, USA.
| | - Kelly L Smalling
- U.S. Geological Survey, New Jersey Water Science Center, 3450 Princeton Pike, Suite 110, Lawrenceville, NJ 08648, USA.
| | - Vicki S Blazer
- U.S. Geological Survey, Fish Health Branch, Leetown Science Center, 11649 Leetown Road, Kearneysville, WV 25430, USA.
| | - Adam J Sperry
- U.S. Geological Survey, Fish Health Branch, Leetown Science Center, 11649 Leetown Road, Kearneysville, WV 25430, USA.
| | - Megan K Schall
- The Pennsylvania State University, Biological Services, 76 University Drive, Hazleton, PA 18202, USA.
| | - Dana W Kolpin
- U.S. Geological Survey, Central Midwest Water Science Center, 400 S Clinton St Room 269, Iowa City, IA 52240, USA.
| | - Patrick J Phillips
- U.S. Geological Survey, New York Water Science Center, 425 Jordan Road, Troy, NY 12180, USA.
| | - Michelle L Hladik
- U.S. Geological Survey, California Water Science Center, 6000 J Street, Placer Hall, Sacramento, CA 95819, USA.
| | - Tyler Wagner
- U.S. Geological Survey, Pennsylvania Cooperative Fish and Wildlife Research Unit, Pennsylvania State University, 402 Forest Resources Building, University Park, PA 16802, USA.
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46
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The Effects of Glyphosate and Its Commercial Formulations to Marine Invertebrates: A Review. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2020. [DOI: 10.3390/jmse8060399] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Glyphosate is the active ingredient of numerous commercial formulations of herbicides applied in different sectors, from agriculture to aquaculture. Due to its widespread use around the world, relatively high concentrations of glyphosate have been detected in soil and aquatic environments. The presence of glyphosate in aquatic ecosystems has aroused the attention of researchers because of its potential negative effects on living organisms, both animals and plants. In this context, this review intends to summarize results of studies aimed at evaluating the effects of glyphosate (both as active ingredient and component of commercial formulations) on marine invertebrates. Generally, data obtained in acute toxicity tests indicate that glyphosate and its commercial formulations are lethal at high concentrations (not environmentally realistic), whereas results of long-lasting experiments indicate that glyphosate can markedly affect biological responses of marine invertebrates. Consequently, more efforts should be addressed at evaluating chronic or sub-chronic effects of such substances to marine invertebrate species.
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47
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Medalie L, Baker NT, Shoda ME, Stone WW, Meyer MT, Stets EG, Wilson M. Influence of land use and region on glyphosate and aminomethylphosphonic acid in streams in the USA. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 707:136008. [PMID: 31863994 DOI: 10.1016/j.scitotenv.2019.136008] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 10/10/2019] [Accepted: 12/06/2019] [Indexed: 05/24/2023]
Abstract
Glyphosate is the most widely used herbicide in the United States for agricultural and non-agricultural weed control. Many studies demonstrate possible effects of glyphosate and its degradate AMPA on human and ecological health. Although glyphosate is thought to have limited mobility in soil, it is found year-round in many rivers and streams throughout the world in both agricultural and developed environments. It is vitally important to continue to increase the knowledge base of glyphosate use, distribution, transport, and impacts on human health and the environment. Here we show that glyphosate and AMPA are found in nearly all of 70 streams throughout the United States at concentrations far below human health or ecological benchmarks, with less occurrence in the Northeast and that undeveloped land, classified as such by land use near the sampling station, has lower concentrations compared to other types of land. Results also show that sites with large watersheds tend to have more AMPA than glyphosate and the opposite is true for small watersheds. Travel times and opportunity for glyphosate to degrade to AMPA and for reservoirs of AMPA to grow are greater in large watersheds. Factors that promoted quick movement of glyphosate to streams, such as subsurface tile or storm drains, sewers, overland flow from developed landscapes, and arid landscapes were associated with sites that had greater concentrations of glyphosate compared to AMPA. These results contribute contemporary information and generalized interpretations adding to the knowledge base of the fate of glyphosate on a national scale and provide a springboard for further exploration of technical processes controlling transport to streams.
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Affiliation(s)
- Laura Medalie
- U.S. Geological Survey, New England Water Science Center, New Hampshire - Vermont Office, 87 State Street, Montpelier, VT 05602, USA.
| | - Nancy T Baker
- U.S. Geological Survey, Ohio Kentucky Indiana Water Science Center, 5957 Lakeside Boulevard, Indianapolis, IN 46278, USA.
| | - Megan E Shoda
- U.S. Geological Survey, Ohio Kentucky Indiana Water Science Center, 5957 Lakeside Boulevard, Indianapolis, IN 46278, USA.
| | - Wesley W Stone
- U.S. Geological Survey, Ohio Kentucky Indiana Water Science Center, 5957 Lakeside Boulevard, Indianapolis, IN 46278, USA.
| | - Michael T Meyer
- U.S. Geological Survey, Kansas Water Science Center, 1217 Biltmore Drive, Lawrence, KS 66049, USA.
| | - Edward G Stets
- U.S. Geological Survey, National Research Program, 3215 Marine Street, Boulder, CO 80303, USA.
| | - Michaelah Wilson
- U.S. Geological Survey, Kansas Water Science Center, 1217 Biltmore Drive, Lawrence, KS 66049, USA.
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Jiang Z, Chen J, Li J, Cao B, Chen Y, Liu D, Wang X, Zhang Y. Exogenous Zn 2+ enhance the biodegradation of atrazine by regulating the chlorohydrolase gene trzN transcription and membrane permeability of the degrader Arthrobacter sp. DNS10. CHEMOSPHERE 2020; 238:124594. [PMID: 31445334 DOI: 10.1016/j.chemosphere.2019.124594] [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: 05/10/2019] [Revised: 07/22/2019] [Accepted: 08/14/2019] [Indexed: 06/10/2023]
Abstract
Enhancing the biodegradation efficiency of atrazine, a kind of commonly applied herbicide, has been attracted much more concern. Here, Zn2+ which has long been considered essential in adjusting cell physiological status was selected to investigate its role on the biodegradation of atrazine by Arthrobacter sp. DNS10 as well as the transmembrane transport of atrazine during the biodegradation period. The results of gas chromatography showed that the atrazine removal percentages (initial concentration was 100 mg L-1) in 0.05 mM Zn2+ and 1.0 mM Zn2+ treatments were 94.42% and 86.02% respectively at 48 h, while there was also 66.43% of atrazine left in the treatment without exogenous Zn2+ existence. The expression of atrazine chlorohydrolase gene trzN in the strain DNS10 cultured with 0.05 mM and 1.0 mM Zn2+ was 7.30- and 4.67- times respectively compared with that of the non-zinc treatment. In addition, the flow cytometry test suggests that 0.05 mM of Zn2+ could better adjust the membrane permeability of strain DNS10, meanwhile, the amount of atrazine accumulation in the strain DNS10 co-cultured with this level Zn2+ was 2.21 times of that of the strain without Zn2+. This study may facilitate a better understanding of the mechanisms that exogenous Zn2+ enhances the biodegradation of atrazine by Arthrobacter sp. DNS10.
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Affiliation(s)
- Zhao Jiang
- School of Resources & Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Jianing Chen
- School of Resources & Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Jiaojiao Li
- School of Resources & Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Bo Cao
- School of Resources & Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Yukun Chen
- School of Resources & Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Di Liu
- School of Resources & Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Xinxin Wang
- School of Resources & Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Ying Zhang
- School of Resources & Environment, Northeast Agricultural University, Harbin, 150030, China.
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49
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Chen N, Valdes D, Marlin C, Ribstein P, Alliot F, Aubry E, Blanchoud H. Transfer and degradation of the common pesticide atrazine through the unsaturated zone of the Chalk aquifer (Northern France). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 255:113125. [PMID: 31520903 DOI: 10.1016/j.envpol.2019.113125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 08/22/2019] [Accepted: 08/26/2019] [Indexed: 06/10/2023]
Abstract
Groundwater in the Chalk aquifer is an important water resource whose quality has degraded due to fertilizer and pesticide use. Atrazine, classified as a priority substance, has been one of the most applied pesticides and also one of the most frequently detected pesticides in groundwater. The present study investigated the transfer and degradation of atrazine in the unsaturated zone of the Chalk aquifer in Northern France. The study was conducted in an underground quarry (Saint-Martin-le-Noeud), which provides a direct access to the water table and intercepts the unsaturated zone at different depths. The lake and the ceiling percolation of 16 sites throughout the quarry were followed. For 16 sites, the percolating flow rate and lake level were measured and the lake water was sampled for nitrate, atrazine and deethylatrazine (DEA, main degradation product of atrazine) analysis over 2.5 years. High spatial variations in hydrodynamics (percolating flow rate and lake level) and in lake water quality (atrazine between 55±11 and 202±40 ng L-1 and DEA between 269±53 and 1727±345 ng L-1) indicate that the properties of the unsaturated zone influence the transfer and the degradation of atrazine. A counterclockwise hysteresis characterizes the relationship between the lake level and atrazine concentration. Temporal variation shows that the atrazine is transferred through the matrix and fractures with a delay caused by the sorption process that differs in atrazine and DEA. The layer of clay-with-flints is shown to favor the degradation of atrazine near the surface. Preferential pathways may be created below clay-with-flints, through which the transfer of atrazine is quicker.
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Affiliation(s)
- Ningxin Chen
- Sorbonne Université, CNRS, EPHE, UMR 7619 Metis, 4 Place Jussieu 75005 Paris, France.
| | - Danièle Valdes
- Sorbonne Université, CNRS, EPHE, UMR 7619 Metis, 4 Place Jussieu 75005 Paris, France
| | - Christelle Marlin
- Université Paris-Saclay, Université Paris-Sud, UMR 8148 GEOPS, 91405 Orsay, France
| | - Pierre Ribstein
- Sorbonne Université, CNRS, EPHE, UMR 7619 Metis, 4 Place Jussieu 75005 Paris, France
| | - Fabrice Alliot
- EPHE, PSL Research University, UMR Metis 7619 (CNRS), 4 Place Jussieu, 75005 Paris, France
| | - Emmanuel Aubry
- Sorbonne Université, CNRS, EPHE, UMR 7619 Metis, 4 Place Jussieu 75005 Paris, France
| | - Hélène Blanchoud
- EPHE, PSL Research University, UMR Metis 7619 (CNRS), 4 Place Jussieu, 75005 Paris, France
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Pala A. The effect of a glyphosate-based herbicide on acetylcholinesterase (AChE) activity, oxidative stress, and antioxidant status in freshwater amphipod: Gammarus pulex (Crustacean). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:36869-36877. [PMID: 31745777 DOI: 10.1007/s11356-019-06804-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 10/16/2019] [Indexed: 06/10/2023]
Abstract
This study had determined the effect of glyphosate-based herbicide (GBH) on acetylcholinesterase (AChE) enzyme activity, oxidative stress, and antioxidant status in Gammarus pulex. Firstly, the 96-h LC50 value of glyphosate on G. pulex was determined and calculated as 403 μg/L. Subsequently, the organisms were exposed to sub-lethal concentrations (10, 20, and 40 μg/L) of the determined GHB for 24 and 96 h. The samples were taken from control and GBH-treated groups at 24 and 96 h of study and analysed to determine the malondialdehyde (MDA) and reduced glutathione (GSH) levels, the AChE, superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) enzyme activities. In the G. pulex exposed to GBH for 24 and 96 h, the MDA level increased significantly (p < 0.05). The GSH level, the AChE, the CAT, and the GPx activities decreased compared with the control group (p < 0.05). G. pulex exposure to GBH for 24 h showed a temporary reduction in the SOD. GBH exposure led to oxidative stress in the G. pulex as well as affected the cholinergic system of the organism. These results indicated that the parameters measured may be important indicators of herbicide contamination in G. pulex.
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Affiliation(s)
- Ayşegül Pala
- Faculty of Fisheries, Munzur University, Tunceli, Turkey.
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