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Dong L, Hu Z, Xia Y, Zheng Y, Zhang M, Xie Y, Qiao W, Wang X, Yang S. Application of novel magnetic lignin hydrogels: Activated persulfate degrades pesticide contaminants. J Colloid Interface Sci 2024; 675:670-682. [PMID: 38996697 DOI: 10.1016/j.jcis.2024.06.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 06/20/2024] [Accepted: 06/24/2024] [Indexed: 07/14/2024]
Abstract
Lignin hydrogels have garnered significant attention due to their distinctive three-dimensional structures and potent swelling ability. In this work, a novel magnetic nanocomposite lignin hydrogel (MNLH) was fabricated through organic synthesis and solution immersion reduction. The obtained MNLH was used to activate persulfate(PDS) for pesticide degradation. Scanning electron microscopy (SEM), X-ray diffractometry (XRD), Brunauer-Emmett-Teller (BET), X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared spectroscopy (FTIR) were used to characterize the structure and morphology of MNLH. The influence of factors such as the lignin hydrogel to nano-zero-valent iron (nZVI) and copper oxide (CuO) mass ratio, MNLH dosage, initial pH on the MNLH/PDS/imidacloprid (IMI) system. Remarkably, the MNLH/PDS/IMI system has a removal rate of up to 100%. Quenching and electron paramagnetic resonance (EPR) studies disclosed that the MNLH/PDS system degraded IMI through a combination of free radical and non-free radical pathways, with the latter being dominant. More importantly, in this study, the toxicity and hydrolysis sites of IMI were analyzed using ECOSAR and Gaussian09, respectively, confirming the feasibility of activating persulfate with MNLH. These findings underscore the potential of MNLH as a function material suitable for facilitating the persulfate-activated degradation of organic pollutants.
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Affiliation(s)
- Luyu Dong
- School of Water and Environment, Chang' an University, Xi'an 710064, China
| | - Zhixin Hu
- School of Water and Environment, Chang' an University, Xi'an 710064, China
| | - Yujin Xia
- School of Water and Environment, Chang' an University, Xi'an 710064, China
| | - Yu Zheng
- School of Water and Environment, Chang' an University, Xi'an 710064, China
| | - Miao Zhang
- School of Water and Environment, Chang' an University, Xi'an 710064, China
| | - Yilin Xie
- School of Water and Environment, Chang' an University, Xi'an 710064, China
| | - Weihan Qiao
- School of Water and Environment, Chang' an University, Xi'an 710064, China
| | - Xueli Wang
- School of Water and Environment, Chang' an University, Xi'an 710064, China; Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, Chang' an University, Xi'an 710064, China.
| | - Shengke Yang
- School of Water and Environment, Chang' an University, Xi'an 710064, China; Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, Chang' an University, Xi'an 710064, China
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Ijzerman MM, Raby M, Letwin NV, Kudla YM, Anderson JD, Atkinson BJ, Rooney RC, Sibley PK, Prosser RS. New insights into pesticide occurrence and multicompartmental monitoring strategies in stream ecosystems using periphyton and suspended sediment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 915:170144. [PMID: 38242468 DOI: 10.1016/j.scitotenv.2024.170144] [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: 09/29/2023] [Revised: 01/08/2024] [Accepted: 01/11/2024] [Indexed: 01/21/2024]
Abstract
Streams are susceptible to pesticide pollutants which are transported outside of the intended area of application from surrounding agricultural fields. It is essential to monitor the occurrence and levels of pesticides in aquatic ecosystems to comprehend their effects on the aquatic environment. The common sampling strategy used for monitoring pesticides in stream ecosystems is through the collection and analysis of grab water samples. However, grab water sampling may not effectively monitor pesticides due to its limited ability to capture temporal and spatial variability, potentially missing fluctuations and uneven distribution of pesticides in aquatic environments. Monitoring using periphyton and sediment sampling may offer a more comprehensive approach by accounting for accumulative processes and temporal variations. Periphyton are a collective of microorganisms that grow on hard surfaces in aquatic ecosystems. They are responsive to chemical and biological changes in the environment, and therefore have the potential to act as a cost-effective, integrated sampling tool to monitor pesticide exposures in aquatic ecosystems. The objective of this study was to assess pesticides detected through periphyton, suspended sediment, and conventional grab water sampling methods and identify the matrix that offers a more comprehensive characterization of a stream's pesticide exposure profile. Ten streams across Southern Ontario were sampled in 2021 and 2022. At each stream site, water, sediment and periphyton, colonizing both artificial and natural substrates, were collected and analyzed for the presence of ~500 pesticides. Each of the three matrices detected distinctive pesticide exposure profiles. The frequency of detection in periphyton, sediment and water matrices were related to pesticides' log Kow and log Koc (P < 0.05). In addition, periphyton bioconcentrated 22 pesticides above levels observed in the ambient water. The bioconcentration factors of pesticides in periphyton can be predicted from their log Kow (simple linear regressions, P < 0.05). The results demonstrate that sediment and periphyton accumulate pesticides in stream environments. This highlights the importance of monitoring pesticide exposure using these matrices to ensure a complete and comprehensive characterization of exposure in stream ecosystems.
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Affiliation(s)
- Moira M Ijzerman
- University of Guelph, School of Environmental Sciences, Guelph, ON, Canada
| | - Melanie Raby
- Ontario Ministry of the Environment, Conservation and Parks, Toronto, ON, Canada
| | - Nicholas V Letwin
- University of Guelph, School of Environmental Sciences, Guelph, ON, Canada
| | - Yaryna M Kudla
- University of Guelph, School of Environmental Sciences, Guelph, ON, Canada
| | - Jenna D Anderson
- University of Guelph, School of Environmental Sciences, Guelph, ON, Canada
| | - Brian J Atkinson
- Laboratory Services Division, University of Guelph, Guelph, ON, Canada
| | - Rebecca C Rooney
- University of Waterloo, Department of Biology, Waterloo, ON, Canada
| | - Paul K Sibley
- University of Guelph, School of Environmental Sciences, Guelph, ON, Canada
| | - Ryan S Prosser
- University of Guelph, School of Environmental Sciences, Guelph, ON, Canada.
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3
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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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4
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McLamb F, Feng Z, Shea D, Bozinovic K, Vasquez MF, Stransky C, Gersberg RM, Wang W, Kong X, Xia XR, Bozinovic G. Evidence of transboundary movement of chemicals from Mexico to the U.S. in Tijuana River Estuary sediments. CHEMOSPHERE 2024; 348:140749. [PMID: 38000551 DOI: 10.1016/j.chemosphere.2023.140749] [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: 06/15/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023]
Abstract
The Tijuana River Estuary (TRE) has been a public health hazard and point of contention between the United States and Mexico for decades, with sources of pollution on both sides of the border. The goal of our study is to determine the presence and dynamics of chemical contamination in the TRE. We sampled sediment from four TRE locations in the U.S. during stable dry conditions and immediately after a wet weather period. Organic chemicals were initially screened with non-targeted analysis using gas chromatography high-resolution mass spectrometry (GC/HRMS) that tentatively identified 6978 chemicals in the NIST 20 database. These tentative identifications were filtered using the USEPA CompTox database to guide quantitative targeted analysis at detection limits below 1 ng/g dry weight sediment. Quantitative targeted analysis of 152 organic pollutants and 18 inorganic elements via GC/HRMS revealed generally higher concentrations of contaminants in dry weather sediments compared to wet weather sediments. The highest concentrations of all chemical classes were detected at the site closest to the U.S.-Mexico border, followed by an urban area near Imperial Beach, California, U.S. All sites exhibited a mixture of petrogenic and pyrogenic polycyclic aromatic hydrocarbons (PAHs). Current-use pesticides were dominated by pyrethroid insecticides and the thiocarbamate herbicide s-Ethyl dipropylthiocarbamate (EPTC), while the U.S.-banned organochlorine pesticides were dominated by chlordanes, dieldrin, and dichlorodiphenyltrichloroethane (DDT) and its degradation byproducts. Polychlorinated biphenyl (PCB) concentrations were greatest at the site closest to the U.S.-Mexico border but in the low nanogram-per-gram range. Phthalates were only found at the same site, with relatively high concentrations of bis(2-ethylhexyl) phthalate. This study provides positive identification and quantitative concentrations for organic pollutants in TRE sediments. Our data suggest that there are multiple sources of chemical contamination in the estuary, including possible transboundary movement of pollutants from Mexico.
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Affiliation(s)
- Flannery McLamb
- Boz Life Science Research and Teaching Institute, San Diego, CA, 92109, USA; University of California San Diego, Extended Studies, La Jolla, CA, 92037, USA
| | - Zuying Feng
- Boz Life Science Research and Teaching Institute, San Diego, CA, 92109, USA
| | - Damian Shea
- Statera Environmental, Inc, Raleigh, NC, 27606, USA
| | - Kesten Bozinovic
- Boz Life Science Research and Teaching Institute, San Diego, CA, 92109, USA; Georgetown University, Washington, DC, 20035, USA
| | - Miguel F Vasquez
- Boz Life Science Research and Teaching Institute, San Diego, CA, 92109, USA; University of California San Diego, Extended Studies, La Jolla, CA, 92037, USA
| | | | - Richard M Gersberg
- San Diego State University, Graduate School of Public Health, San Diego, CA, 92182, USA
| | | | - Xiang Kong
- Statera Environmental, Inc, Raleigh, NC, 27606, USA
| | - Xin-Rui Xia
- Statera Environmental, Inc, Raleigh, NC, 27606, USA
| | - Goran Bozinovic
- Boz Life Science Research and Teaching Institute, San Diego, CA, 92109, USA; San Diego State University, Graduate School of Public Health, San Diego, CA, 92182, USA; University of California San Diego, School of Biological Sciences, La Jolla, CA, 92037, USA; Portland State University, Center for Life in Extreme Environments, Portland, OR, 97201, USA.
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5
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Bosch-Orea C, Kleemann CR, Deolindo CTP, Molognoni L, Dallegrave A, Daguer H, de Oliveira Costa AC, Hoff RB. Integrated analysis of marine biotoxins and contaminants of emerging concern in bivalve mollusks from Santa Catarina, Brazil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167254. [PMID: 37741417 DOI: 10.1016/j.scitotenv.2023.167254] [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: 07/05/2023] [Revised: 09/03/2023] [Accepted: 09/20/2023] [Indexed: 09/25/2023]
Abstract
Santa Catarina is the main producer state of oysters and mussels in Brazil, reaching 98 % of national production. To assure the safety of bivalve mollusks production, control programs of marine biotoxins (MBs) have been continuously performed. Herein, the co-occurrence of MBs and contaminants of emerging concern (CECs) in oyster and mussels from the main production sites of Santa Catarina was reported, covering 178 compounds. Samples of wild and non-cultivated oysters and mussels were also assessed. Chemometric tools were used to evaluate and optimize several sample preparation techniques such as solid-liquid, ultrasound assisted, and pressurized liquid extraction. The optimized protocol was based on ultrasound assisted extraction followed by liquid chromatography coupled to tandem mass spectrometry. The results showed the incidence of several CECs and MBs. In the case of MBs, all results were below the regulatory limits for both cultivated and non-cultivated samples. Wild mollusks have shown a higher number of compounds. Regarding CECs, the more frequent compounds were caffeine, diclofenac, meloxicam, and sertraline. Domoic acid and okadaic acid were the main toxins detected. The results highlighted the need of monitoring for MBs and the potential of oyster and mussels as sentinel organisms to risk analysis of CECs in coastal regions. To the best of our knowledge, this is the first method to describe a simultaneous sample preparation and analysis of CECs and MBs in bivalve mollusks, as well as the first report of meloxicam and florfenicol in mussels and oysters.
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Affiliation(s)
- Cristina Bosch-Orea
- Water and Soil Quality Research Group, Department of Environmental Chemistry, IDAEA-CSIC, C/Jordi Girona 18-26, Barcelona 08034, Spain
| | - Cristian Rafael Kleemann
- Ministério da Agricultura e Pecuária, Laboratório Federal de Defesa Agropecuária, Setor Laboratorial Avançado (SLAV/SC/LFDA/RS), São José, SC 88102-600, Brazil; Instituto Catarinense de Sanidade Agropecuária (ICASA), Florianópolis, SC 88034-100, Brazil; Universidade Federal de Santa Catarina (UFSC), Departamento de Ciência e Tecnologia de Alimentos, Florianópolis, SC 88034-100, Brazil
| | - Carolina Turnes Pasini Deolindo
- Ministério da Agricultura e Pecuária, Laboratório Federal de Defesa Agropecuária, Setor Laboratorial Avançado (SLAV/SC/LFDA/RS), São José, SC 88102-600, Brazil; Instituto Catarinense de Sanidade Agropecuária (ICASA), Florianópolis, SC 88034-100, Brazil; Universidade Federal de Santa Catarina (UFSC), Departamento de Ciência e Tecnologia de Alimentos, Florianópolis, SC 88034-100, Brazil
| | - Luciano Molognoni
- Ministério da Agricultura e Pecuária, Laboratório Federal de Defesa Agropecuária, Setor Laboratorial Avançado (SLAV/SC/LFDA/RS), São José, SC 88102-600, Brazil; Instituto Catarinense de Sanidade Agropecuária (ICASA), Florianópolis, SC 88034-100, Brazil
| | - Alexsandro Dallegrave
- Universidade Federal do Rio Grande do Sul (UFRGS), Instituto de Química, Porto Alegre, SC 88034-100, Brazil
| | - Heitor Daguer
- Ministério da Agricultura e Pecuária, Laboratório Federal de Defesa Agropecuária, Setor Laboratorial Avançado (SLAV/SC/LFDA/RS), São José, SC 88102-600, Brazil
| | - Ana Carolina de Oliveira Costa
- Universidade Federal de Santa Catarina (UFSC), Departamento de Ciência e Tecnologia de Alimentos, Florianópolis, SC 88034-100, Brazil.
| | - Rodrigo Barcellos Hoff
- Ministério da Agricultura e Pecuária, Laboratório Federal de Defesa Agropecuária, Setor Laboratorial Avançado (SLAV/SC/LFDA/RS), São José, SC 88102-600, Brazil.
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Fernandes G, Aparicio VC, De Gerónimo E, Prestes OD, Zanella R, Ebling E, Parisi PB, Mollmann VHDS, Reichert JM, Rheinheimer Dos Santos D. Epilithic biofilms as a discriminating matrix for long-term and growing season pesticide contamination in the aquatic environment: Emphasis on glyphosate and metabolite AMPA. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 900:166315. [PMID: 37604376 DOI: 10.1016/j.scitotenv.2023.166315] [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: 04/06/2023] [Revised: 08/10/2023] [Accepted: 08/12/2023] [Indexed: 08/23/2023]
Abstract
The indiscriminate use of pesticides represents high ecological risk in aquatic systems. Recently, the inclusion of epilithic biofilms as a reactive matrix has shown potential in diagnosing the health of water resources. The objective of this study was to use multiple matrices (water, suspended sediments, and biofilms) to discriminate contamination degrees in catchments with long and recent history of intensive pesticide use and to monitor growing season pesticides transfer to watercourses. Two catchments were monitored: one representative of "modern agriculture" in a subtropical environment, and another representative of recent agricultural expansion over the Pampa Biome in subtropical Brazil. Glyphosate and AMPA were accumulated in the biofilms and were detected at all sites and at all monitoring times, in concentrations ranging from 195 to 7673 μg kg-1 and from 225 to 4180 μg kg-1, respectively. Similarly, the fungicide tebuconazole has always been found in biofilms. The biofilms made it possible to discriminate the long-term history of pesticide use in the catchments and even to identify the influx pulses of pesticides immediately after their application to crops, which was not possible with active water sampling and even with suspended sediment monitoring. It is strongly recommended that, in regions with intensive cultivation of soybeans and other genetically modified crops, the presence of glyphosate and its metabolite AMPA be permanently monitored, a practice still very scarce in the literature.
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Affiliation(s)
- Gracieli Fernandes
- Soils Department, Federal University of Santa Maria, Roraima Avenue, 1000, Santa Maria, RS, 97105-900, Brazil.
| | - Virginia Carolina Aparicio
- Instituto Nacional de Tecnología Agropecuaria INTA EEA Balcarce, Ruta Nacional 226, Km 73,5, Balcarce CP 7620, Buenos Aires, Argentina
| | - Eduardo De Gerónimo
- Instituto Nacional de Tecnología Agropecuaria INTA EEA Balcarce, Ruta Nacional 226, Km 73,5, Balcarce CP 7620, Buenos Aires, Argentina
| | - Osmar Damian Prestes
- Laboratory of Pesticide Residues Analysis (LARP), Chemistry Department, Federal University of Santa Maria, Roraima Avenue, 1000, Santa Maria, RS, 97105-900, Brazil
| | - Renato Zanella
- Laboratory of Pesticide Residues Analysis (LARP), Chemistry Department, Federal University of Santa Maria, Roraima Avenue, 1000, Santa Maria, RS, 97105-900, Brazil
| | - Ederson Ebling
- Soils Department, Federal University of Santa Maria, Roraima Avenue, 1000, Santa Maria, RS, 97105-900, Brazil
| | - Pedro Bolzan Parisi
- Soils Department, Federal University of Santa Maria, Roraima Avenue, 1000, Santa Maria, RS, 97105-900, Brazil
| | - Victor Hugo Dos Santos Mollmann
- Graduate Program in Animal Biodiversity, Federal University of Santa Maria, Roraima Avenue, 1000, Santa Maria, RS, 97105-900, Brazil
| | - José Miguel Reichert
- Soils Department, Federal University of Santa Maria, Roraima Avenue, 1000, Santa Maria, RS, 97105-900, Brazil
| | - Danilo Rheinheimer Dos Santos
- Soils Department, Federal University of Santa Maria, Roraima Avenue, 1000, Santa Maria, RS, 97105-900, Brazil; Foreign Visiting Professors at University of Limoges, (2022-2023) France
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Mosquera-Vivas CS, Celis-Ossa RE, González-Murillo CA, Obregón-Neira N, Martínez-Cordón MJ, Guerrero-Dallos JA, García-Santos G. Empirical model to assess leaching of pesticides in soil under a steady-state flow and tropical conditions. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY : IJEST 2023; 21:1301-1320. [PMID: 38223844 PMCID: PMC10784402 DOI: 10.1007/s13762-023-05038-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 04/19/2023] [Accepted: 05/29/2023] [Indexed: 01/16/2024]
Abstract
Abstract An empirical model of leaching of pesticides was developed to simulate the concentration of fungicides throughout unsaturated soil. The model was based on chemical reactions and the travel time of a conservative tracer to represent the travel time required for water to flow between soil layers. The model's performance was then tested using experimental data from dimethomorph and pyrimethanil applied to the soil under field and laboratory conditions. The empirical model simulated fungicide concentration on soil solids and in soil solution at different depths over time (mean square error between 2.9 mg2 kg-2 and 61mg2 kg-2) using sorption percentages and degradation rates under laboratory conditions. The sorption process was affected by the organic carbon, clay, and the effective cation exchange capacity of the soil. The degradation rate values of dimethomorph (0.039 d-1-0.009 d-1) and pyrimethanil (0.053 d-1-0.004 d-1) decreased from 0 to 40 cm and then remained constant in deeper soil layers (60-80 cm). Fungicide degradation was a critical input in the model at subsurface layers. The model was determined to be a reliable mathematical tool to estimate the leachability of pesticides in tropical soil under a steady-state flow. It may be extended to other substances and soils for environmental risk assessment projects. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1007/s13762-023-05038-w.
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Affiliation(s)
- C. S. Mosquera-Vivas
- Departamento de Química, Facultad de Ciencias, At current Departamento de Agronomía, Facultad de Ciencias Agrarias, Universidad Nacional de Colombia, Avenue 45th, 111321 Bogotá, D.C., Colombia
| | - R. E. Celis-Ossa
- Departamento de Ingeniería Civil y Agrícola, Facultad de Ingeniería Civil, Universidad Nacional de Colombia, Avenue 45th, 111321 Bogotá, D.C., Colombia
| | - C. A. González-Murillo
- Departamento de Ingeniería Civil y Agrícola, Facultad de Ingeniería Civil, Universidad Nacional de Colombia, Avenue 45th, 111321 Bogotá, D.C., Colombia
| | - N. Obregón-Neira
- Departamento de Ingeniería Civil, Pontificia Universidad Javeriana, Avenue 7th, 110231 Bogotá, D.C., Colombia
| | - M. J. Martínez-Cordón
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Avenue 45th, 111321 Bogotá, D.C., Colombia
| | - J. A. Guerrero-Dallos
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Avenue 45th, 111321 Bogotá, D.C., Colombia
| | - G. García-Santos
- Department of Geography and Regional Studies, Alpen-Adria-University, Lakesidepark Haus B02, Ebene 2, 9020 Klagenfurt, Austria
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8
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San Juan MRF, Lavarías SML, Aparicio V, Larsen KE, Lerner JEC, Cortelezzi A. Ecological risk assessment of pesticides in sediments of Pampean streams, Argentina. CHEMOSPHERE 2023; 313:137598. [PMID: 36549510 DOI: 10.1016/j.chemosphere.2022.137598] [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: 11/25/2021] [Revised: 12/14/2022] [Accepted: 12/17/2022] [Indexed: 06/17/2023]
Abstract
After their application in agricultural areas, pesticides are dispersed throughout the environment, causing contamination problems. In Argentina, the main promoter of transgenic biotechnology in the region, the total consumption of agrochemicals has increased significantly in recent years. Most chemicals dumped near surface waters eventually end up in bottom sediments and can be toxic to the organisms that live there. However, published data on the mixing of pesticides in this compartment is still scarce. The objective of this work was to detect and quantify pesticide residues in the sediment of rural streams in the Pampas region and to carry out acute and chronic risk assessment in these aquatic ecosystems. The study area comprises the mountainous system of Tandilia, located in one of the most productive agricultural areas in the country. The concentration of atrazine, acetochlor, chlorpyrifos, cypermethrin, and 2,4-D in the sediment of four rural streams was determined in three different seasons, and the toxic units (TU) and the risk ratios (RQ) were calculated. All the compounds analyzed were detected in most of the sampling seasons and study sites, at concentrations higher than those established in the national and international quality guidelines for the protection of aquatic biota in surface waters and for human consumption. Chlorpyrifos, cypermethrin, and acetochlor were the main pesticides contributing to the TU and RQ values, representing a medium or high ecological risk in most of the sites. Therefore, the evaluation of these pesticides in the bottom sediments could be a decisive factor in assessing the risk to the aquatic environment.
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Affiliation(s)
- M R Fernández San Juan
- Instituto Multidisciplinario Sobre Ecosistemas y Desarrollo Sustentable (ECOSISTEMAS), UNICEN, Tandil, Argentina; Laboratorio de Ecotoxicología y Biología, Facultad de Ciencias Veterinarias, Centro de Investigación Veterinaria Tandil (CIVETAN-CIC-CONICET), UNICEN, Tandil, Argentina.
| | - S M L Lavarías
- Instituto de Limnología "Dr. Raúl A. Ringuelet" (ILPLA-CCT CONICET) La Plata - UNLP, La Plata, Argentina.
| | - V Aparicio
- Instituto Nacional de Tecnología Agropecuaria (INTA), EEA Balcarce, Ruta 226 Km 73,3, Balcarce, Argentina; CONICET, Consejo Nacional de Investigaciones Científicas y Tecnológicas, Argentina.
| | - K E Larsen
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN-CIC-CONICET), Facultad de Ciencias Veterinarias, UNICEN, Tandil, Argentina.
| | - J E Colman Lerner
- Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco" (CONICET-UNLP-CICPBA), La Plata, Argentina.
| | - A Cortelezzi
- Instituto Multidisciplinario Sobre Ecosistemas y Desarrollo Sustentable (ECOSISTEMAS), UNICEN, Tandil, Argentina; CONICET, Consejo Nacional de Investigaciones Científicas y Tecnológicas, Argentina.
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9
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Ago KA, Kitte SA, Chirfa G, Gure A. Effervescent powder-assisted floating organic solvent-based dispersive liquid-liquid microextraction for determination of organochlorine pesticides in water by GC-MS. Heliyon 2023; 9:e12954. [PMID: 36704271 PMCID: PMC9871210 DOI: 10.1016/j.heliyon.2023.e12954] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 01/15/2023] Open
Abstract
An effervescent powder-assisted floating organic solvent-based dispersive liquid-liquid microextraction was introduced for determination of 13 organochlorine pesticides in water samples. In this method, a less toxic low-density organic solvent was used as extraction solvent. The extraction solvent was dispersed in to the aqueous sample via CO2 bubbles, in-situ generated up on addition of water to a falcon tube containing the mixture of effervescent powder precursors as well as the extraction solvent. Various experimental parameters such as effervescent and its weight fractions, extraction solvent type and its volume, the total mass of effervescent precursors, and the effect of salt were investigated and the optimal conditions were established. Under the optimum conditions, the proposed method exhibited good linearity for all target pesticides with the coefficient of determinations varying from 0.9981 to 0.9997. The limits of detection and quantification were within the range of 0.03-0.24 and 0.26-0.75 μg/L, respectively. The intra- and inter-day precisions which were expressed in terms of the relative standard deviation ranged from 0.33 to 4.47 and 0.51-5.52%, respectively. The enrichment factors and recoveries ranged from 24 to 293 and 76-116%, respectively. The proposed method could be used simple, cheap, fast, and environmentally friendly alternative for analysis of organochlorine pesticides from environmental water and other similar matrices.
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10
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Arsand JB, Dallegrave A, Jank L, Feijo T, Perin M, Hoff RB, Arenzon A, Gomes A, Pizzolato TM. Spatial-temporal occurrence of contaminants of emerging concern in urban rivers in southern Brazil. CHEMOSPHERE 2023; 311:136814. [PMID: 36283426 DOI: 10.1016/j.chemosphere.2022.136814] [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: 07/01/2022] [Revised: 09/22/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
The widespread use and misuse of antibiotics and pesticides has been linked with several risks to the environment and human health. In the present report, the results of the monitoring of 64 pharmaceuticals and 134 pesticides occurrence in an urban river in Southern Brazil are presented and discussed. Sampling campaigns have covered the period 2016-2018. The identification and determination of the analytes were achieved by high-resolution mass spectrometry. The data were analyzed using chemometric tools to obtain spatial-temporal models. Toxicological evaluation was achieved using acute toxicity (zebrafish standardized protocol), and determination of risk quotient. Within the 198 analytes included in the targeted analysis method for surface water, 33 were identified in an urban river during 2 years of monitoring, being 20 pharmaceuticals and 13 pesticides. Using high-resolution mass spectrometry, a suspect screening approach was established in an un-target analysis. The evaluation was carried out using a data bank built from consumption data of drugs and pesticides, in the metropolitan region of Porto Alegre - RS and their respective metabolites. The suspect screening analysis done with a data bank with more than 1450 compounds results in 27 suspect findings. The target analysis results showed a continuous prevalence of non-steroidal anti-inflammatories, analgesics, antipyretics, beta-blockers, corticoids, and antibiotics. Regarding the pesticides, the main classes were fungicides, especially those from triazol and strobilurin classes.
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Affiliation(s)
- Juliana Bazzan Arsand
- Instituto de Química, Universidade Federal Do Rio Grande Do Sul - UFRGS, Av. Bento Gonçalves 9500, ZIP 91501-970, Porto Alegre, RS, Brazil
| | - Alexandro Dallegrave
- Instituto de Química, Universidade Federal Do Rio Grande Do Sul - UFRGS, Av. Bento Gonçalves 9500, ZIP 91501-970, Porto Alegre, RS, Brazil
| | - Louíse Jank
- Laboratório Federal de Defesa Agropecuária - LFDA/RS, Ministério da Agricultura, Pecuária e Abastecimento Do Brasil, Estrada da Ponta Grossa 3036, ZIP 91780-580, Porto Alegre, RS, Brazil
| | - Tiago Feijo
- Instituto de Química, Universidade Federal Do Rio Grande Do Sul - UFRGS, Av. Bento Gonçalves 9500, ZIP 91501-970, Porto Alegre, RS, Brazil
| | - Mauricio Perin
- Instituto de Química, Universidade Federal Do Rio Grande Do Sul - UFRGS, Av. Bento Gonçalves 9500, ZIP 91501-970, Porto Alegre, RS, Brazil; Laboratório Federal de Defesa Agropecuária - LFDA/RS, Ministério da Agricultura, Pecuária e Abastecimento Do Brasil, Estrada da Ponta Grossa 3036, ZIP 91780-580, Porto Alegre, RS, Brazil
| | - Rodrigo Barcellos Hoff
- Laboratório Federal de Defesa Agropecuária - LFDA/RS, Ministério da Agricultura, Pecuária e Abastecimento Do Brasil, Rua João Grumiche 117, ZIP 88102-600, São José, SC, Brazil
| | - Alexandre Arenzon
- Centro de Ecologia, Universidade Federal Do Rio Grande Do Sul - UFRGS, Av. Bento Gonçalves 9500, ZIP 91501-970, Porto Alegre, RS, Brazil
| | - Adriano Gomes
- Instituto de Química, Universidade Federal Do Rio Grande Do Sul - UFRGS, Av. Bento Gonçalves 9500, ZIP 91501-970, Porto Alegre, RS, Brazil
| | - Tânia Mara Pizzolato
- Instituto de Química, Universidade Federal Do Rio Grande Do Sul - UFRGS, Av. Bento Gonçalves 9500, ZIP 91501-970, Porto Alegre, RS, Brazil.
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11
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Zhou Y, Jing J, Yu R, Zhao Y, Gou Y, Tang H, Zhang H, Huang Y. Distribution of pesticide residues in agricultural topsoil of the Huangshui catchment, Qinghai Tibet Plateau. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:7582-7592. [PMID: 36040693 DOI: 10.1007/s11356-022-22704-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 08/20/2022] [Indexed: 06/15/2023]
Abstract
This study presents monitoring data on the spatial distribution and occurrence of pesticide residues of cultivated soil in the Huangshui catchment in the northeastern part of the Qinghai Tibet Plateau. We also provide factors that influence the distribution of pesticides, such as the properties of pesticides and soil and crop types. A total of 110 soil samples were collected in early April 2021, and 49 pesticides were analyzed. Only 3.6% of the samples contained no pesticide residues (concentrations < limit of quantitation or not detected [ND]), and the total pesticide concentration ranged from ND to 0.925 mg/kg. Most commonly, two to five pesticides were found in the soil samples (> 70.9%), and up to 10 pesticide residues were present in some samples. A total of 85 different pesticide combinations were observed in all the soil samples. Chlorpyrifos and difenoconazole were the dominant compounds. The levels of pesticide residues were mainly driven by their half-life values. Bulk density, along with soil water content and pH, also affected the retention of pesticides in the soil. The crop type played no role in the distribution of pesticides.
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Affiliation(s)
- Yang Zhou
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Jing Jing
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Ruyue Yu
- Key Laboratory of Agricultural Land Quality, Ministry of Natural Resources, Key Laboratory of Arable Land Conservation (North China), Ministry of Agriculture and Rural Affairs, College of Land Science and Technology, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Yunze Zhao
- Key Laboratory of Agricultural Land Quality, Ministry of Natural Resources, Key Laboratory of Arable Land Conservation (North China), Ministry of Agriculture and Rural Affairs, College of Land Science and Technology, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Yuxuan Gou
- Key Laboratory of Agricultural Land Quality, Ministry of Natural Resources, Key Laboratory of Arable Land Conservation (North China), Ministry of Agriculture and Rural Affairs, College of Land Science and Technology, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Huaizhi Tang
- Key Laboratory of Agricultural Land Quality, Ministry of Natural Resources, Key Laboratory of Arable Land Conservation (North China), Ministry of Agriculture and Rural Affairs, College of Land Science and Technology, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Hongyan Zhang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, People's Republic of China.
| | - Yuanfang Huang
- Key Laboratory of Agricultural Land Quality, Ministry of Natural Resources, Key Laboratory of Arable Land Conservation (North China), Ministry of Agriculture and Rural Affairs, College of Land Science and Technology, China Agricultural University, Beijing, 100193, People's Republic of China
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12
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Zou Z, Huang X, Guo X, Jia C, Li B, Zhao E, Wu J. Efficient degradation of imidacloprid in soil by thermally activated persulfate process: Performance, kinetics, and mechanisms. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 241:113815. [PMID: 36068744 DOI: 10.1016/j.ecoenv.2022.113815] [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: 04/02/2022] [Revised: 06/11/2022] [Accepted: 06/23/2022] [Indexed: 06/15/2023]
Abstract
Imidacloprid (IMI) as a first-generation commercial neonicotinoid has been frequently detected in the environment in recent years. In this study, the efficient degradation of IMI in soil by a thermally activated persulfate (PS) process was investigated. The degradation efficiencies of IMI were in the range of 82-97% with the PS dosage of 10 mM, when the initial concentrations of IMI were 5-50 mg/kg in the soil. Degradation of the IMI was fitted with a pseudo-first-order kinetic model under different reaction temperatures. Inhibition effects of the common inorganic anions on the IMI degradation in the system followed the order Cl- > HCO3- > H2PO4- > NO3-. Soil pH and soil organic matter were also main factors affecting the degradation of IMI. The degradation efficiencies (64-97%) of three other typical neonicotinoids (acetamiprid, clothianidin, and dinotefuran) indicated that the thermally activated persulfate process could be used for remediation of neonicotinoid-contaminated soil. Quenching experiments indicated that the major reactive species in IMI degradation were SO4•-, O2•-, and •OH. Six degradation intermediates of IMI were inferred in the soil, and degradation pathways of IMI included hydroxylation, denitrification, C-N bond break and further oxidation.
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Affiliation(s)
- Ziyu Zou
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China; College of Agricultural Sciences, Jiangxi Agricultural University, Nanchang 330045, China
| | - Xin Huang
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China
| | - Xingle Guo
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China
| | - Chunhong Jia
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China
| | - Baotong Li
- College of Agricultural Sciences, Jiangxi Agricultural University, Nanchang 330045, China
| | - Ercheng Zhao
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China
| | - Junxue Wu
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Science, Beijing 100097, China.
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13
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Abstract
PURPOSE OF REVIEW Climate change is the biggest public health threat of the twenty-first century but its impact on the perinatal period has only recently received attention. This review summarizes recent literature regarding the impacts of climate change and related environmental disasters on pregnancy health and provides recommendations to inform future adaptation and mitigation efforts. RECENT FINDINGS Accumulating evidence suggests that the changing climate affects pregnancy health directly via discrete environmental disasters (i.e., wildfire, extreme heat, hurricane, flood, and drought), and indirectly through changes in the natural and social environment. Although studies vary greatly in design, analytic methods, and assessment strategies, they generally converge to suggest that climate-related disasters are associated with increased risk of gestational complication, pregnancy loss, restricted fetal growth, low birthweight, preterm birth, and selected delivery/newborn complications. Window(s) of exposure with the highest sensitivity are not clear, but both acute and chronic exposures appear important. Furthermore, socioeconomically disadvantaged populations may be more vulnerable. Policy, clinical, and research strategies for adaptation and mitigation should be continued, strengthened, and expanded with cross-disciplinary efforts. Top priorities should include (a) reinforcing and expanding policies to further reduce emission, (b) increasing awareness and education resources for healthcare providers and the public, (c) facilitating access to quality population-based data in low-resource areas, and (d) research efforts to better understand mechanisms of effects, identify susceptible populations and windows of exposure, explore interactive impacts of multiple exposures, and develop novel methods to better quantify pregnancy health impacts.
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Affiliation(s)
- Sandie Ha
- Department of Public Health, School of Social Sciences, Humanities and Arts, Health Science Research Institute, University of California, Merced, 5200 N Lake Rd, Merced, CA, 95343, USA.
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14
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Mac Loughlin TM, Peluso ML, Marino DJG. Multiple pesticides occurrence, fate, and environmental risk assessment in a small horticultural stream of Argentina. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 802:149893. [PMID: 34474294 DOI: 10.1016/j.scitotenv.2021.149893] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 08/20/2021] [Accepted: 08/21/2021] [Indexed: 06/13/2023]
Abstract
Peri-urban horticulture is crucial to local populations, but a global paucity of information exists regarding the contamination of the associated waterways because of this activity. The aim of this study was to assess pesticide pollution of surface water, suspended particulate matter and bottom sediments from the Carnaval Creek Basin (La Plata, Buenos Aires, Argentina) - a representative system of waterways surrounded by horticultural production - by over 40 selected herbicides, insecticides, and fungicides by gas-chromatography-time-of-flight mass spectrometry and ultraperformance liquid chromatography tandem mass spectrometry. Six sampling campaigns were conducted biannually from 2015 to 2017. Glyphosate and (aminomethyl)phosphonic acid (AMPA), surprisingly, were the most frequently detected pesticides, in concentrations comparable to those reported in areas with genetically modified extensive crops (maximum in water, 20.04 and 4.86 μg·L-1; in sediment, 1146.5 and 4032.7 μg·kgdw-1, respectively). The insecticides chlorpyrifos, cypermethrin and λ-cyhalothrin were detected in more than 30% of the samples. The concentrations tended to greatly exceed those previously reported - by up to more than 800 times for chlorpyrifos in water (maximum 2.645 μg·L-1) and more than 400 times for lambda-cyhalothrin in sediments (maximum 2607.7 μg·kgdw-1). The total pesticide concentration in surface water was found to be influenced by precipitation regimes but was independent of the season of the year, with precipitations of more than 140 mm diluting the pesticide concentrations to levels below detection limits. An environmental risk assessment performed with the pesticide concentrations of pesticides in surface water revealed that the surrounding horticultural activity posed a high risk for aquatic biota, with 30% of the samples exceeding the threshold value by more than a thousand times. We conclude that pesticides from horticultural use are a major threat to small streams and their biodiversity. This work provides valuable information that is scarce regarding the impact on watercourses exclusively as a consequence of horticulture.
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Affiliation(s)
- Tomás M Mac Loughlin
- Centro de Investigaciones del Medioambiente (CIM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - María Leticia Peluso
- Centro de Investigaciones del Medioambiente (CIM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Damián J G Marino
- Centro de Investigaciones del Medioambiente (CIM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
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