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Yang YF, Cheng SY, Wang YL, Yue ZP, Yu YX, Chen YZ, Wang WK, Xu ZR, Qi ZQ, Liu Y. Accumulated inflammation and fibrosis participate in atrazine induced ovary toxicity in mice. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 360:124672. [PMID: 39103034 DOI: 10.1016/j.envpol.2024.124672] [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: 04/27/2024] [Revised: 07/24/2024] [Accepted: 08/03/2024] [Indexed: 08/07/2024]
Abstract
Atrazine is a widely used herbicide in agricultural production. Previous studies have shown that atrazine affects hormone secretion and oocyte maturation in female reproduction. However, the specific mechanism by which atrazine affects ovarian function remains unclear. In this study, using a mouse gastric lavage model, we report that four weeks of atrazine exposure affects body growth, interferes with the estrous cycle, and increases the number of atretic follicles in mice. The expression levels of follicle development related factors StAR, BMP15, and AMH decreased. Metabolomic analysis revealed that atrazine activates an inflammatory response in ovarian tissue. Further studies confirmed that the expression levels of TNF-α, IL-6, and NF-κB increased in the ovaries of mice exposed to atrazine. Additionally, α-smooth muscle actin (α-SMA) accumulated in ovarian tissue, and transforming growth factor-β (TGF-β) signaling was activated, indicating the occurrence of tissue fibrosis. Moreover, mice exposed to atrazine produced fewer oocytes and exhibited reduced embryonic development. Furthermore, mice exposed to atrazine exhibited altered gut microbiota abundance and a disrupted colon barrier. Collectively, these findings suggest that atrazine exposure induces ovarian inflammation and fibrosis, disrupts ovarian homeostasis, and impairs follicle maturation, ultimately reducing oocyte quality.
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Affiliation(s)
- Yi-Fan Yang
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Si-Yao Cheng
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Ya-Long Wang
- Center for Reproductive Medicine, Maternity and Child Health Care Hospital in Xiangtan, Xiangtan, Hunan, 411100, China
| | - Zhao-Ping Yue
- Center for Reproductive Medicine, Maternity and Child Health Care Hospital in Xiangtan, Xiangtan, Hunan, 411100, China
| | - Yu-Xi Yu
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Yan-Zhu Chen
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Wen-Ke Wang
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Zhi-Ran Xu
- Translational Medicine Research Center, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, 530011, China
| | - Zhong-Quan Qi
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Yu Liu
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China.
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2
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Amaral L, Mendes F, Côrte-Real M, Rego A, Outeiro TF, Chaves SR. A versatile yeast model identifies the pesticides cymoxanil and metalaxyl as risk factors for synucleinopathies. CHEMOSPHERE 2024; 364:143039. [PMID: 39117080 DOI: 10.1016/j.chemosphere.2024.143039] [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: 10/11/2023] [Revised: 07/25/2024] [Accepted: 08/05/2024] [Indexed: 08/10/2024]
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder characterized by the loss of dopaminergic neurons and the presence of Lewy bodies, which predominantly consist of aggregated forms of the protein alpha-synuclein (aSyn). While these aggregates are a pathological hallmark of PD, the etiology of most cases remains elusive. Although environmental risk factors have been identified, such as the pesticides dieldrin and MTPT, many others remain to be assessed and their molecular impacts are underexplored. This study aimed to identify pesticides that could enhance aSyn aggregation using a humanized yeast model expressing aSyn fused to GFP as a primary screening platform, which we validated using dieldrin. We found that the pesticides cymoxanil and metalaxyl induce aggregation of aSyn in yeast, which we confirmed also occurs in a model of aSyn inclusion formation using human H4 cells. In conclusion, our approach generated invaluable molecular data on the effect of pesticides, therefore providing insights into mechanisms associated with the onset and progression of PD and other synucleinopathies.
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Affiliation(s)
- Leslie Amaral
- CBMA - Centre of Molecular and Environmental Biology, ARNET - Aquatic Research Network, Department of Biology, School of Sciences, University of Minho, 4710-057, Braga, Portugal; University Medical Center Göttingen, Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration, Göttingen, Germany
| | - Filipa Mendes
- CBMA - Centre of Molecular and Environmental Biology, ARNET - Aquatic Research Network, Department of Biology, School of Sciences, University of Minho, 4710-057, Braga, Portugal
| | - Manuela Côrte-Real
- CBMA - Centre of Molecular and Environmental Biology, ARNET - Aquatic Research Network, Department of Biology, School of Sciences, University of Minho, 4710-057, Braga, Portugal
| | - António Rego
- Centre of Biological Engineering (CEB), Department of Biological Engineering, University of Minho, Braga, Portugal
| | - Tiago F Outeiro
- University Medical Center Göttingen, Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration, Göttingen, Germany; Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Framlington Place, Newcastle Upon Tyne, NE2 4HH, UK; Max Planck Institute for Multidisciplinary Sciences, 37075, Göttingen, Germany; Scientific Employee With an Honorary Contract at Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Göttingen, Germany.
| | - Susana R Chaves
- CBMA - Centre of Molecular and Environmental Biology, ARNET - Aquatic Research Network, Department of Biology, School of Sciences, University of Minho, 4710-057, Braga, Portugal.
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3
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Buzenchi Proca TM, Solcan C, Solcan G. Neurotoxicity of Some Environmental Pollutants to Zebrafish. Life (Basel) 2024; 14:640. [PMID: 38792660 PMCID: PMC11122474 DOI: 10.3390/life14050640] [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: 04/19/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024] Open
Abstract
The aquatic environment encompasses a wide variety of pollutants, from plastics to drug residues, pesticides, food compounds, and other food by-products, and improper disposal of waste is the main cause of the accumulation of toxic substances in water. Monitoring, assessing, and attempting to control the effects of contaminants in the aquatic environment are necessary and essential to protect the environment and thus human and animal health, and the study of aquatic ecotoxicology has become topical. In this respect, zebrafish are used as model organisms to study the bioaccumulation, toxicity, and influence of environmental pollutants due to their structural, functional, and material advantages. There are many similarities between the metabolism and physiological structures of zebrafish and humans, and the nervous system structure, blood-brain barrier function, and social behavior of zebrafish are characteristics that make them an ideal animal model for studying neurotoxicity. The aim of the study was to highlight the neurotoxicity of nanoplastics, microplastics, fipronil, deltamethrin, and rotenone and to highlight the main behavioral, histological, and oxidative status changes produced in zebrafish exposed to them.
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Affiliation(s)
- Teodora Maria Buzenchi Proca
- Department of Preclinics, Faculty of Veterinary Medicine, Iasi University of Life Sciences Ion Ionescu de la Brad, 700490 Iasi, Romania; (T.M.B.P.); (C.S.)
| | - Carmen Solcan
- Department of Preclinics, Faculty of Veterinary Medicine, Iasi University of Life Sciences Ion Ionescu de la Brad, 700490 Iasi, Romania; (T.M.B.P.); (C.S.)
| | - Gheorghe Solcan
- Internal Medicine Unit, Clinics Department, Faculty of Veterinary Medicine, Iasi University of Life Sciences Ion Ionescu de la Brad, 700490 Iasi, Romania
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4
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Neale PA, Neelamraju C, Warne MSJ. Derivation of species sensitivity distributions and ecotoxicity threshold values for 66 pesticide active ingredients and the hazard and risk they pose to freshwater waterways that discharge to the Great Barrier Reef, Australia. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 920:170988. [PMID: 38365043 DOI: 10.1016/j.scitotenv.2024.170988] [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: 12/21/2023] [Revised: 01/31/2024] [Accepted: 02/13/2024] [Indexed: 02/18/2024]
Abstract
Pesticide active ingredients (PAIs) are one of the main contributors affecting water quality in the Great Barrier Reef Catchment Area (GBRCA). While an extensive list of pesticides is monitored in the GBRCA, only a limited number have water quality guideline values (WQGs), meaning it is not possible to know whether these PAIs are present at concentrations that may pose a hazard to the aquatic environment. In the current study, we derived 66 ecotoxicity threshold values (ETVs) for PAIs, the equivalent of WQGs, with a focus on PAIs applied to sugar cane. The hazard posed by PAIs monitored as part of the Great Barrier Reef Catchment Loads Monitoring Program (GBRCLMP) was assessed by comparing the derived ETVs with monitoring data from 2016/2017 to 2021/2022. The derived ETVs included herbicides, insecticides and fungicides, with the values that should protect 99 or 95 % of aquatic species (PC99 or PC95) spanning nine orders of magnitude. The concentrations of 10 PAIs exceeded their respective ETVs, giving a hazard quotient (HQ) >1. Of particular concern were insecticides chlorpyrifos, diazinon and methomyl, which have maximum HQ values >10. However, joint probability plots indicated that the PAIs generally pose a low risk to the aquatic environment, with most samples below the limit of reporting. As PAIs are predominantly found in mixtures in the GBRCA, the hazard posed by PAI mixtures was assessed by summing all individual HQ values in a sample for all PAIs with an ETV or WQG. On average, the insecticide active ingredient imidacloprid and herbicide active ingredients metolachlor, metsulfuron methyl, diuron and imazepic were the drivers of combined mixture hazard. Methomyl was an important contributor at some sites, suggesting that this pesticide should be considered for inclusion in any future PAI mixture hazard and/or risk assessment of the GBRCA.
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Affiliation(s)
- P A Neale
- Reef Catchments Science Partnership, School of the Environment, University of Queensland, Brisbane, Queensland 4108, Australia
| | - C Neelamraju
- Reef Catchments Science Partnership, School of the Environment, University of Queensland, Brisbane, Queensland 4108, Australia; Water Quality and Investigations, Environmental Monitoring and Assessment Science, Science Delivery, Department of Environment, Science and Innovation, Brisbane, Queensland 4102, Australia
| | - M St J Warne
- Reef Catchments Science Partnership, School of the Environment, University of Queensland, Brisbane, Queensland 4108, Australia; Water Quality and Investigations, Environmental Monitoring and Assessment Science, Science Delivery, Department of Environment, Science and Innovation, Brisbane, Queensland 4102, Australia; Centre for Agroecology, Water and Resilience, Coventry University, Coventry, United Kingdom.
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5
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Izma G, Raby M, Prosser R, Rooney R. Urban-use pesticides in stormwater ponds and their accumulation in biofilms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 918:170534. [PMID: 38301793 DOI: 10.1016/j.scitotenv.2024.170534] [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: 11/20/2023] [Revised: 01/24/2024] [Accepted: 01/26/2024] [Indexed: 02/03/2024]
Abstract
Stormwater ponds frequently receive urban runoff, increasing the likelihood of pesticide contamination. Biofilms growing in surface waters of these ponds are known to accumulate a range of aquatic contaminants, paradoxically providing both water purification services and potentially posing a threat to urban wildlife. Thus, sampling biofilms in stormwater ponds may be a critical and biologically relevant tool for characterizing pesticide contamination and toxicity in urban environments. Here, we aimed to investigate pesticide occurrences at 21 stormwater ponds in Brampton, ON, one of Canada's fastest growing municipalities, and quantify their accumulation in biofilm. Over nine weeks, we collected time-integrated composite water and biofilm samples for analysis of ∼500 current-use and legacy pesticides. Thirty-two pesticide compounds were detected across both matrices, with 2,4-D, MCPA, MCPP, azoxystrobin, bentazon, triclopyr, and diuron having near-ubiquitous occurrences. Several compounds not typically monitored in pesticide suites (e.g., melamine and nicotine) were also detected, but only in biofilms. Overall, 56 % of analytes detected in biofilms were not found in water samples, indicating traditional pesticide monitoring practices fail to capture all exposure routes, as even when pesticides are below detection levels in water, organisms may still be exposed via dietary pathways. Calculated bioconcentration factors ranged from 4.2 to 1275 and were not predicted by standard pesticide physicochemical properties. Monitoring biofilms provides a sensitive and comprehensive supplement to water sampling for pesticide quantification in urban areas, and identifying pesticide occurrences in stormwater could improve source-tracking efforts in the future. Further research is needed to understand the mechanisms driving pesticide accumulation, to investigate toxicity risks associated with pesticide-contaminated biofilm, and to evaluate whether pesticide accumulation in stormwater pond biofilms represents a route through which contaminants are mobilized into the surrounding terrestrial and downstream aquatic environments.
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Affiliation(s)
- Gab Izma
- Department of Biology, University of Waterloo, Waterloo, ON, Canada
| | - Melanie Raby
- Ontario Ministry of Environment, Conservation, and Parks, Etobicoke, ON, Canada
| | - Ryan Prosser
- School of Environmental Science, University of Guelph, Guelph, ON, Canada
| | - Rebecca Rooney
- Department of Biology, University of Waterloo, Waterloo, ON, Canada.
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Klaassen H, Tissot S, Meliani J, Boutry J, Miltiadous A, Biro PA, Mitchell DJ, Ujvari B, Schultz A, Thomas F, Dujon AM. Behavioural ecology meets oncology: quantifying the recovery of animal behaviour to a transient exposure to a cancer risk factor. Proc Biol Sci 2024; 291:20232666. [PMID: 38351808 PMCID: PMC10865010 DOI: 10.1098/rspb.2023.2666] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 01/15/2024] [Indexed: 02/16/2024] Open
Abstract
Wildlife is increasingly exposed to sublethal transient cancer risk factors, including mutagenic substances, which activates their anti-cancer defences, promotes tumourigenesis, and may negatively impact populations. Little is known about how exposure to cancer risk factors impacts the behaviour of wildlife. Here, we investigated the effects of a sublethal, short-term exposure to a carcinogen at environmentally relevant concentrations on the activity patterns of wild Girardia tigrina planaria during a two-phase experiment, consisting of a 7-day exposure to cadmium period followed by a 7-day recovery period. To comprehensively explore the effects of the exposure on activity patterns, we employed the double hierarchical generalized linear model framework which explicitly models residual intraindividual variability in addition to the mean and variance of the population. We found that exposed planaria were less active compared to unexposed individuals and were able to recover to pre-exposure activity levels albeit with a reduced variance in activity at the start of the recovery phase. Planaria showing high activity levels were less predictable with larger daily activity variations and higher residual variance. Thus, the shift in behavioural variability induced by an exposure to a cancer risk factor can be quantified using advanced tools from the field of behavioural ecology. This is required to understand how tumourous processes affect the ecology of species.
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Affiliation(s)
- Hiske Klaassen
- Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Waurn Ponds, Victoria 3216, Australia
- CREEC/CANECEV (CREES), MIVEGEC, IRD 224–CNRS 5290–Université de Montpellier, Montpellier, France
| | - Sophie Tissot
- CREEC/CANECEV (CREES), MIVEGEC, IRD 224–CNRS 5290–Université de Montpellier, Montpellier, France
| | - Jordan Meliani
- CREEC/CANECEV (CREES), MIVEGEC, IRD 224–CNRS 5290–Université de Montpellier, Montpellier, France
| | - Justine Boutry
- CREEC/CANECEV (CREES), MIVEGEC, IRD 224–CNRS 5290–Université de Montpellier, Montpellier, France
| | - Anna Miltiadous
- Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Waurn Ponds, Victoria 3216, Australia
| | - Peter A. Biro
- Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Waurn Ponds, Victoria 3216, Australia
- CREEC/CANECEV (CREES), MIVEGEC, IRD 224–CNRS 5290–Université de Montpellier, Montpellier, France
| | | | - Beata Ujvari
- Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Waurn Ponds, Victoria 3216, Australia
- CREEC/CANECEV (CREES), MIVEGEC, IRD 224–CNRS 5290–Université de Montpellier, Montpellier, France
| | - Aaron Schultz
- Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Waurn Ponds, Victoria 3216, Australia
- CREEC/CANECEV (CREES), MIVEGEC, IRD 224–CNRS 5290–Université de Montpellier, Montpellier, France
| | - Frédéric Thomas
- Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Waurn Ponds, Victoria 3216, Australia
- CREEC/CANECEV (CREES), MIVEGEC, IRD 224–CNRS 5290–Université de Montpellier, Montpellier, France
| | - Antoine M. Dujon
- Geelong, School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Waurn Ponds, Victoria 3216, Australia
- CREEC/CANECEV (CREES), MIVEGEC, IRD 224–CNRS 5290–Université de Montpellier, Montpellier, France
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7
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Cui J, Tian S, Gu Y, Wu X, Wang L, Wang J, Chen X, Meng Z. Toxicity effects of pesticides based on zebrafish (Danio rerio) models: Advances and perspectives. CHEMOSPHERE 2023; 340:139825. [PMID: 37586498 DOI: 10.1016/j.chemosphere.2023.139825] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/02/2023] [Accepted: 08/12/2023] [Indexed: 08/18/2023]
Abstract
Pesticides inevitably enter aquatic environments, posing potential risks to organisms. The common aquatic model organism, zebrafish (Danio rerio), are widely used to evaluate the toxicity of pesticides. In this review, we searched the Web of Science database for articles published between 2012 and 2022, using the keywords "pesticide", "zebrafish", and "toxicity", retrieving 618 publications. Furthermore, we described the main pathways by which pesticides enter aquatic environments and the fate of their residues in these environments. We systematically reviewed the toxicity effects of pesticides on zebrafish, including developmental toxicity, endocrine-disrupting effects, reproductive toxicity, neurotoxicity, immunotoxicity, and genotoxicity. Importantly, we summarized the latest research progress on the toxicity mechanism of pesticides to zebrafish based on omics technologies, including transcriptomics, metabolomics, and microbiomics. Finally, we discussed future research prospects, focusing on the combined exposure of multiple pollutants including pesticides, the risk of multigenerational exposure to pesticides, and the chronic toxicity of aquatic nanopesticides. This review provides essential data support for ecological risk assessments of pesticides in aquatic environments, and has implications for water management in the context of pesticide pollution.
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Affiliation(s)
- Jiajia Cui
- Department of Pesticide Science, College of Plant Protection, Yangzhou University, Jiangsu Yangzhou, 225009, China
| | - Sinuo Tian
- Institute of Quality Standard and Testing Technology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Yuntong Gu
- Department of Pesticide Science, College of Plant Protection, Yangzhou University, Jiangsu Yangzhou, 225009, China
| | - Xinyi Wu
- Department of Pesticide Science, College of Plant Protection, Yangzhou University, Jiangsu Yangzhou, 225009, China
| | - Lei Wang
- Department of Pesticide Science, College of Plant Protection, Yangzhou University, Jiangsu Yangzhou, 225009, China
| | - Jianjun Wang
- Department of Pesticide Science, College of Plant Protection, Yangzhou University, Jiangsu Yangzhou, 225009, China
| | - Xiaojun Chen
- Department of Pesticide Science, College of Plant Protection, Yangzhou University, Jiangsu Yangzhou, 225009, China.
| | - Zhiyuan Meng
- Department of Pesticide Science, College of Plant Protection, Yangzhou University, Jiangsu Yangzhou, 225009, China.
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8
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Guo X, Zhang R, Jin Q, Cao N, Shi J, Zong X, Chen X, Wang C, Li X, Pang S, Li L. The kisspeptin-GnIH signaling pathway in the role of zebrafish courtship and aggressive behavior induced by azoxystrobin. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 325:121461. [PMID: 36934963 DOI: 10.1016/j.envpol.2023.121461] [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: 12/20/2022] [Revised: 02/24/2023] [Accepted: 03/17/2023] [Indexed: 06/18/2023]
Abstract
Azoxystrobin, a strobilurin widely used to control rice diseases, has raised concerns about possible adverse effects on aquatic ecosystems. At present, very little is known about the effects of azoxystrobin on courtship and aggressive behavior and the potential underlying mechanisms. In the present study, after exposing adult male and female zebrafish to worst-case scenario concentrations of azoxystrobin (0, 2 μg/L, 20 μg/L, and 200 μg/L) for 42 d, we observed a decrease in courtship behavior and an increase in aggressive behavior in both male and female zebrafish. In addition, to elucidate the molecular mechanism of the behavioral effects of azoxystrobin, we quantified the changes in the concentrations of kisspeptin, 5-HT, GnIH, and their corresponding receptor mRNA expression in the brain. The results showed that 200 μg/L azoxystrobin decreased the concentrations of kisspeptin and increased the concentration of GnIH in both male and female zebrafish brain. In addition, azoxystrobin also significantly reduced 5-HT concentration in female zebrafish brain. Further investigation revealed that altered courtship and aggressive behavior were associated with the expression levels of genes (kiss1, kiss2, gnrh3, gnrhr3, 5ht1a, and 5ht2a) involved in kisspeptin-GnIH signaling pathway. In conclusion, our study suggested that azoxystrobin may impair courtship and aggressive behavior in zebrafish by interfering with the kisspeptin-GnIH signaling pathway, which may have more profound effects on natural zebrafish populations.
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Affiliation(s)
- Xuanjun Guo
- Department of Applied Chemistry, College of Sciences, China Agricultural University, Beijing, 100193, China; State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China
| | - Ruihua Zhang
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China
| | - Qian Jin
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China
| | - Niannian Cao
- Department of Applied Chemistry, College of Sciences, China Agricultural University, Beijing, 100193, China; State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China
| | - Jingjing Shi
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China
| | - Xingxing Zong
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China
| | - Xuejun Chen
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China
| | - Chen Wang
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China
| | - Xuefeng Li
- Department of Applied Chemistry, College of Sciences, China Agricultural University, Beijing, 100193, China
| | - Sen Pang
- Department of Applied Chemistry, College of Sciences, China Agricultural University, Beijing, 100193, China
| | - Liqin Li
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China.
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9
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Impact of Chronic Multi-Generational Exposure to an Environmentally Relevant Atrazine Concentration on Testicular Development and Function in Mice. Cells 2023; 12:cells12040648. [PMID: 36831314 PMCID: PMC9954248 DOI: 10.3390/cells12040648] [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: 01/24/2023] [Revised: 02/15/2023] [Accepted: 02/15/2023] [Indexed: 02/22/2023] Open
Abstract
A common herbicide, atrazine, is associated with poor health. Atrazine acts as an endocrine disruptor at supra-environmental levels. Little research, however, has been conducted regarding chronic exposure to environmental atrazine concentrations across generations. This study utilized comprehensive endpoint measures to investigate the effects of chronic exposure to a conservative atrazine concentration (0.02 ng/mL), measured in Australian waterways, on male mice fertility across two generations. Mice were exposed through the maternal line, from the pre-conception period and through the F1 and F2 generations until three or six months of age. Atrazine did not impact sperm function, testicular morphology nor germ cell parameters but did alter the expression of steroidogenic genes in the F1, down-regulating the expression of Cyp17a1 (Cytochrome P450 family 17, subfamily A member 1; p = 0.0008) and Ddx4 (DEAD-box helicase 4; p = 0.007), and up-regulating the expression of Star (Steroidogenic acute regulatory protein; p = 0.017). In the F2, atrazine induced up-regulation in the expression of Star (p = 0.016). The current study demonstrates that chronic exposure to an environmentally relevant atrazine concentration perturbs testicular steroid-associated gene expression that varies across generations. Future studies through the paternal and combined parental lineages should be undertaken to further elucidate the multigenerational effects of atrazine on male fertility.
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10
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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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11
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Irvine KN, Ho HL, Chua LHC. Dynamics of runoff quality associated with an urban park and WSUD treatment train in a tropical climate. ENVIRONMENTAL TECHNOLOGY 2023; 44:512-527. [PMID: 34478347 DOI: 10.1080/09593330.2021.1976844] [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: 04/17/2021] [Accepted: 08/25/2021] [Indexed: 06/13/2023]
Abstract
A combination of discrete sampling using autosamplers triggered by area-velocity metres and continuous water quality monitoring using YSI datasondes enabled us to evaluate the dynamics of both stormwater runoff and dry weather water quality associated with an urban park and WSUD treatment train in Singapore. The WSUD treatment train consisted of a raingarden and sedimentation ponds. A first flush phenomenon was observed for total suspended solids (TSS) in three of four discrete-sampled events, but there was a less pronounced first flush characteristic for nutrients. Mean TN concentrations associated with runoff from the park (upstream of the WSUD treatment train) were in the range that would be associated with eutrophic conditions, while mean TP levels were in the mesotrophic/eutrophic boundary range. The raingarden reduced nutrient and TSS levels by 7-62% and loads by 65-93%, although nitrate levels were higher in the effluent compared to the influent. The sedimentation ponds successfully reduced sediment levels by 56%, based on continuous turbidity measurements. The dissolved oxygen levels in the sedimentation ponds were lower during drought periods, which has implications for aquatic organisms. The WSUD treatment train generally improved runoff quality from the park and such features can be easily integrated into the park design.
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Affiliation(s)
- K N Irvine
- Faculty of Architecture and Planning, Thammasat University, Khlong Nueng, Thailand
| | - Huu Loc Ho
- Asian Institute of Technology, Pathum Thani, Thailand
| | - Lloyd H C Chua
- Faculty of Science Engineering & Built Environment, School of Engineering, Deakin University, Geelong, Australia
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12
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Sy ND, Wheeler SS, Reed M, Haas-Stapleton E, Reyes T, Bear-Johnson M, Kluh S, Cummings RF, Su T, Xiong Y, Shi Q, Gan J. Pyrethroid insecticides in urban catch basins: A potential secondary contamination source for urban aquatic systems. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 314:120220. [PMID: 36152708 DOI: 10.1016/j.envpol.2022.120220] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/14/2022] [Accepted: 09/16/2022] [Indexed: 06/16/2023]
Abstract
Pesticide contamination is a threat to many aquatic habitats, and runoff from residential homes is a major contributor of these chemicals in urban surface streams and estuaries. Improved understanding of their fate and transport can help identify areas of concern for monitoring and management. In many urban areas, runoff water congregates in numerous underground catch basins before draining into the open environment; however, at present essentially no information is available on pesticide presence in these systems. In this study, we collected water samples from a large number of underground urban catch basins in different regions of California during the active pest management season to determine the occurrence and profile of the widely used pyrethroid insecticides. Detectable levels of pyrethroids were found in 98% of the samples, and the detection frequency of individual pyrethroids ranged from no detection for fenpropathrin to 97% for bifenthrin. In the aqueous phase, total pyrethroid concentrations ranged from 3 to 726 ng/L, with a median value of 32 ng/L. Pyrethroids were found to be enriched on suspended solids, with total concentrations ranging from 42 to 93,600 ng/g and a median value of 2,350 ng/g. In approximately 89% of the samples, whole water concentrations of bifenthrin were predicted to have toxic units >1 for sensitive aquatic invertebrates. The high detection frequency of bifenthrin and overall pyrethroid concentrations, especially for particle-bound residues, suggest that underground urban catch basins constitute an important secondary source for extended and widespread contamination of downstream surface waters by pesticides such as pyrethroids in urban regions.
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Affiliation(s)
- Nathan D Sy
- Department of Environmental Sciences, University of California, Riverside, CA, 92521, USA.
| | - Sarah S Wheeler
- Sacramento-Yolo Mosquito & Vector Control District, Elk Grove, CA, 95624, USA
| | - Marcia Reed
- Sacramento-Yolo Mosquito & Vector Control District, Elk Grove, CA, 95624, USA
| | | | - Trinidad Reyes
- Madera County Mosquito & Vector Control District, Madera, CA, 93637, USA
| | - Mir Bear-Johnson
- Delta Mosquito & Vector Control District, Visalia, CA, 93291, USA
| | - Susanne Kluh
- Greater Los Angeles County Vector Control District, Santa Fe Springs, CA, 90670, USA
| | - Robert F Cummings
- Orange County Mosquito & Vector Control District, Garden Grove, CA, 92843, USA
| | - Tianyun Su
- West Valley Mosquito & Vector Control District, Ontario, CA, 91761, USA
| | - Yaxin Xiong
- Department of Environmental Sciences, University of California, Riverside, CA, 92521, USA
| | - Qingyang Shi
- Department of Environmental Sciences, University of California, Riverside, CA, 92521, USA
| | - Jay Gan
- Department of Environmental Sciences, University of California, Riverside, CA, 92521, USA
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13
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Chaumet B, Probst JL, Payré-Suc V, Granouillac F, Riboul D, Probst A. Pond mitigation in dissolved and particulate pesticide transfers: Influence of storm events and seasonality (Auradé agricultural catchment, SW-France). JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 320:115911. [PMID: 35961144 DOI: 10.1016/j.jenvman.2022.115911] [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: 05/22/2022] [Revised: 07/18/2022] [Accepted: 07/29/2022] [Indexed: 06/15/2023]
Abstract
In agricultural headwater catchments, wetlands such as ponds are numerous and well known to partly dissipate contamination. Most of the pesticides are transferred from soils to the aquatic environment during flood events. This study reports the annual/seasonal behaviour of 6 pesticides (metolachlor, boscalid, epoxiconazole, tebuconazole, aclonifen and pendimethalin) in such an environment. Because it is rarely considered, the study focussed on the high frequency of the distribution of pesticides between dissolved and particulate phases, as well as the main controlling factors of their upstream-downstream transfer. The pond removal rate was calculated to evaluate the wetland efficiency in pesticide mitigation. We conducted a one-year high frequency hydrochemical survey, with particular emphasis on flood events, in the upper Auradé catchment (SW-France), an area of long-term conventional agriculture on highly erosive carbonated soils. The inlet and outlet of the pond were instrumented for water level measurements and water sampling. The highest concentrations were observed for tebuconazole and, in general, the presence of the molecules during the year depended on the season. The pond showed satisfactory efficiency in pesticide attenuation for the six molecules considered, although the removal rate depended on the molecule and the bearing phase (from 28.4% for boscalid to 89.4% for aclonifen in the dissolved phase and from 22.1% for pendimethalin to 96.8% for metolachlor in the particulate fraction). Interestingly, the more hydrophilic the molecule (low LogKOW), the more efficient the pesticide removal rate was for its particulate fraction, and the opposite for hydrophobic molecules (high LogKOW). Flood events carried a large amount of Total Suspended Solid (TSS) bearing hydrophobic molecules from a major legacy of upper catchment soils, although 52% of the pesticides were transported by the dissolved fraction. Significant resuspension of TSS from the pond was evidenced by the annual mass balance with four tons of TSS released, while the positive rate of pesticide removal involved other effective mechanisms such as exchange and complexation. Although these constructed wetlands may be beneficial for pesticide mitigation, the results highlighted the need for improved land management in the upstream catchment during the different seasons to avoid bare soils that pose a risk of high surface water contamination, especially due to the presence of hydrophobic molecules in combination with a high erosive context.
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Affiliation(s)
- Betty Chaumet
- Laboratory of Functional Ecology and Environment, University of Toulouse, CNRS, Auzeville Tolosane, 31326 Castanet Tolosan, France; LTSER Zone Atelier Pyrénées-Garonne, CNRS, University of Toulouse, 31326 Castanet Tolosan, France; LTER Bassin versant Auradé, IR OZCAR, CNRS, University of Toulouse, 31326 Castanet Tolosan, France.
| | - Jean-Luc Probst
- Laboratory of Functional Ecology and Environment, University of Toulouse, CNRS, Auzeville Tolosane, 31326 Castanet Tolosan, France; LTSER Zone Atelier Pyrénées-Garonne, CNRS, University of Toulouse, 31326 Castanet Tolosan, France; LTER Bassin versant Auradé, IR OZCAR, CNRS, University of Toulouse, 31326 Castanet Tolosan, France
| | - Virginie Payré-Suc
- Laboratory of Functional Ecology and Environment, University of Toulouse, CNRS, Auzeville Tolosane, 31326 Castanet Tolosan, France; LTSER Zone Atelier Pyrénées-Garonne, CNRS, University of Toulouse, 31326 Castanet Tolosan, France; LTER Bassin versant Auradé, IR OZCAR, CNRS, University of Toulouse, 31326 Castanet Tolosan, France
| | - Franck Granouillac
- Laboratory of Functional Ecology and Environment, University of Toulouse, CNRS, Auzeville Tolosane, 31326 Castanet Tolosan, France; LTSER Zone Atelier Pyrénées-Garonne, CNRS, University of Toulouse, 31326 Castanet Tolosan, France; LTER Bassin versant Auradé, IR OZCAR, CNRS, University of Toulouse, 31326 Castanet Tolosan, France
| | - David Riboul
- Laboratory of Functional Ecology and Environment, University of Toulouse, CNRS, Auzeville Tolosane, 31326 Castanet Tolosan, France
| | - Anne Probst
- Laboratory of Functional Ecology and Environment, University of Toulouse, CNRS, Auzeville Tolosane, 31326 Castanet Tolosan, France; LTSER Zone Atelier Pyrénées-Garonne, CNRS, University of Toulouse, 31326 Castanet Tolosan, France; LTER Bassin versant Auradé, IR OZCAR, CNRS, University of Toulouse, 31326 Castanet Tolosan, France.
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14
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Chakraborty A, Saha GK, Aditya G. Macroinvertebrates as engineers for bioturbation in freshwater ecosystem. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:64447-64468. [PMID: 35864394 DOI: 10.1007/s11356-022-22030-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 07/11/2022] [Indexed: 06/15/2023]
Abstract
Bioturbation is recognized as a deterministic process that sustains the physicochemical properties of the freshwater ecosystem. Irrigation, ventilation, and particle reworking activities made by biotic components on sediment beds influence the flow of nutrients and transport of particles in the sediment-water interface. Thus, the biogenic disturbances in sediment are acknowledged as pivotal mechanism nutrient cycling in the aquatic system. The macroinvertebrates of diverse taxonomic identity qualify as potent bioturbators due to their abundance and activities in the freshwater. Of particular relevance are the bioturbation activities by the sediment-dwelling biota, which introduce changes in both sediment and water profile. Multiple outcomes of the macroinvertebrate-mediated bioturbation are recognized in the form of modified sediment architecture, changed redox potential in the sediment-water interface, and elicited nutrient fluxes. The physical movement and physiological activities of benthic macroinvertebrates influence organic deposition in sediment and remobilize sediment-bound pollutants and heavy metals, as well as community composition of microbes. As ecosystem engineers, the benthic macroinvertebrates execute multiple functional roles through bioturbation that facilitate maintaining the freshwater as self-sustaining and self-stabilizing system. The likely consequences of bioturbation on the freshwater ecosystems facilitated by various macroinvertebrates - the ecosystem engineers. Among the macroinvertebrates, varied species of molluscs, insects, and annelids are the key facilitators for the movement of the nutrients and shaping of the sediment of the freshwater ecosystem.
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Affiliation(s)
- Anupam Chakraborty
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India
| | - Goutam K Saha
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India
| | - Gautam Aditya
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India.
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15
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Rodrigues-Silva F, Masceno GP, Panicio PP, Imoski R, Prola LDT, Vidal CB, Xavier CR, Ramsdorf WA, Passig FH, Liz MVD. Removal of micropollutants by UASB reactor and post-treatment by Fenton and photo-Fenton: Matrix effect and toxicity responses. ENVIRONMENTAL RESEARCH 2022; 212:113396. [PMID: 35525292 DOI: 10.1016/j.envres.2022.113396] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/26/2022] [Accepted: 04/28/2022] [Indexed: 06/14/2023]
Abstract
Literature is scarce on the performance of Fenton-based processes as post-treatment of municipal wastewater treated by upflow anaerobic sludge blanket (UASB) reactor. This study aims to perform Fenton and photo-Fenton from UASB influent and effluent matrices to remove micropollutants (MPs) models: atrazine (ATZ), rifampicin (RIF), and 17α-ethynylestradiol (EE2). A UASB reactor at bench-scale (14 L) was operated with these MPs, and the AOPs experiments at bench-scale were performed on a conventional photochemical reactor (1 L). A high-pressure vapor mercury lamp was used for photo-Fenton process (UVA-Vis) as a radiation source. Microcrustacean Daphnia magna (acute toxicity) and seeds of Lactuca sativa (phytotoxicity) were indicator organisms for toxicity monitoring. The UASB reactor showed stability removing 90% of the mean chemical oxygen demand, and removal efficiencies for ATZ, RIF, and EE2 were 16.5%, 45.9%, and 15.7%, respectively. A matrix effect was noted regarding the application of both Fenton and photo-Fenton in UASB influent and effluent to remove MPs and toxicity responses. The pesticide ATZ was the most recalcitrant compound, yet the processes carried out from UASB effluent achieved removal >99.99%. The post-treatment of the UASB reactor by photo-Fenton removed acute toxicity in D. magna for all treatment times. However, only the photo-Fenton conducted for 90 min did not result in a phytotoxic effect in L. sativa.
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Affiliation(s)
- Fernando Rodrigues-Silva
- Research Group on Water and Wastewater Advanced Treatment Technologies (GPTec), Department of Chemistry and Biology, Federal University of Technology-Paraná (UTFPR), Deputado Heitor de Alencar Furtado St., 5000, Ecoville, Curitiba, Paraná, 81280-340, Brazil
| | - Gabriella Paini Masceno
- Research Group on Water and Wastewater Advanced Treatment Technologies (GPTec), Department of Chemistry and Biology, Federal University of Technology-Paraná (UTFPR), Deputado Heitor de Alencar Furtado St., 5000, Ecoville, Curitiba, Paraná, 81280-340, Brazil
| | - Paloma Pucholobek Panicio
- Laboratory of Ecotoxicology, Department of Chemistry and Biology, Federal University of Technology-Paraná (UTFPR), Deputado Heitor de Alencar Furtado St., 5000, Ecoville, Curitiba, Paraná, 81280-340, Brazil
| | - Rafaela Imoski
- Research Group on Water and Wastewater Advanced Treatment Technologies (GPTec), Department of Chemistry and Biology, Federal University of Technology-Paraná (UTFPR), Deputado Heitor de Alencar Furtado St., 5000, Ecoville, Curitiba, Paraná, 81280-340, Brazil
| | - Liziê Daniela Tentler Prola
- Research Group on Water and Wastewater Advanced Treatment Technologies (GPTec), Department of Chemistry and Biology, Federal University of Technology-Paraná (UTFPR), Deputado Heitor de Alencar Furtado St., 5000, Ecoville, Curitiba, Paraná, 81280-340, Brazil
| | - Carla Bastos Vidal
- Research Group on Water and Wastewater Advanced Treatment Technologies (GPTec), Department of Chemistry and Biology, Federal University of Technology-Paraná (UTFPR), Deputado Heitor de Alencar Furtado St., 5000, Ecoville, Curitiba, Paraná, 81280-340, Brazil
| | - Claudia Regina Xavier
- Laboratory of Wastewater Treatment, Department of Chemistry and Biology, Federal University of Technology-Paraná (UTFPR), Deputado Heitor de Alencar Furtado St., 5000, Ecoville, Curitiba, Paraná, 81280-340, Brazil
| | - Wanessa Algarte Ramsdorf
- Laboratory of Ecotoxicology, Department of Chemistry and Biology, Federal University of Technology-Paraná (UTFPR), Deputado Heitor de Alencar Furtado St., 5000, Ecoville, Curitiba, Paraná, 81280-340, Brazil
| | - Fernando Hermes Passig
- Laboratory of Sanitation, Department of Chemistry and Biology, Federal University of Technology-Paraná (UTFPR), Deputado Heitor de Alencar Furtado St., 5000, Ecoville, Curitiba, Paraná, 81280-340, Brazil
| | - Marcus Vinicius de Liz
- Research Group on Water and Wastewater Advanced Treatment Technologies (GPTec), Department of Chemistry and Biology, Federal University of Technology-Paraná (UTFPR), Deputado Heitor de Alencar Furtado St., 5000, Ecoville, Curitiba, Paraná, 81280-340, Brazil.
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16
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Leeb C, Schuler L, Brühl CA, Theissinger K. Low temperatures lead to higher toxicity of the fungicide folpet to larval stages of Rana temporaria and Bufotes viridis. PLoS One 2022; 17:e0258631. [PMID: 35951548 PMCID: PMC9371251 DOI: 10.1371/journal.pone.0258631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 07/08/2022] [Indexed: 11/23/2022] Open
Abstract
Pesticides are one of the main drivers of the worldwide amphibian decline. Their actual toxicity depends on a number of factors, like the species in focus or the developmental stage of exposed individuals. As ectothermic species, the metabolism of amphibians is influenced by ambient temperature. Therefore, temperature also affects metabolic rates and thus processes that might enhance or reduce toxic effects. Studies about the interactive effect of temperature and toxicity on amphibians are rare and deliver contrasting results. To investigate the temperature-dependent pesticide sensitivity of larvae of two European species we conducted acute toxicity tests for the viticultural fungicide Folpan® 500 SC with the active ingredient folpet at different temperatures (6°C, 11°C, 16°C, 21°C, 26°C). Sensitivity of Rana temporaria and Bufotes viridis was highly affected by temperature: early larvae (Gosner stage 20) were about twice more sensitive to Folpan® 500 SC at 6°C compared to 21°C. Next to temperature, species and developmental stage of larvae had an effect on sensitivity. The most sensitive individuals (early stages of R. temporaria at 6°C) were 14.5 times more sensitive than the least sensitive ones (early stages of B. viridis at 26°C). Our results raise concerns about typical ecotoxicological studies with amphibians that are often conducted at temperatures between 15°C and 20°C. We suggest that future test designs should be performed at temperatures that reflect the temperature range amphibians are exposed to in their natural habitats. Variations in the sensitivity due to temperature should also be considered as an uncertainty factor in upcoming environmental risk assessments for amphibians.
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Affiliation(s)
- Christoph Leeb
- iES Landau, Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany
- * E-mail:
| | - Laura Schuler
- iES Landau, Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany
| | - Carsten A. Brühl
- iES Landau, Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany
| | - Kathrin Theissinger
- iES Landau, Institute for Environmental Sciences, University of Koblenz-Landau, Landau, Germany
- LOEWE Centre for Translational Biodiversity Genomics, Senckenberg Biodiversity and Climate Research Centre, Frankfurt, Germany
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17
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Rose MT, Zhang P, Rose TJ, Scanlan CA, McGrath G, Van Zwieten L. Herbicide residues in Australian grain cropping soils at sowing and their relevance to crop growth. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 833:155105. [PMID: 35398436 DOI: 10.1016/j.scitotenv.2022.155105] [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: 01/09/2022] [Revised: 04/01/2022] [Accepted: 04/03/2022] [Indexed: 06/14/2023]
Abstract
Herbicides are used extensively in Australian grain cropping systems. Despite occasional observations of herbicide-induced phytotoxicity, there is little information on the persistence and carryover of multiple herbicide classes in cropping soils and the risk to subsequent crops. Two soil surveys were conducted, in 2015 (n = 40) and 2016 (n = 42), across different Australian grain cropping fields prior to sowing of winter crops, and soil samples analysed for herbicide residues (16 analytes in 2015 and 22 analytes in 2016). Samples in 2015 were taken at two depths (0-10 cm and 10-30 cm), whilst samples in 2016 were taken in topsoil (0-10 cm) only, but from two discrete locations in each field. Our research in both years found at least one herbicide (or herbicide metabolite) residue at all sites, with a median of 6 analytes detected in 2015 and 7 analytes detected in 2016. The most frequently detected residues were glyphosate and its primary breakdown product aminomethylphosphonic acid (AMPA), in 87 and 100%, respectively, of topsoil (0-10 cm) samples in 2015, and 67 and 93% of samples in 2016. The median concentration of glyphosate in 2015 was 0.12 mg kg-1, while AMPA was 0.41 mg kg-1. In 2016, median concentrations of glyphosate and AMPA were 0.22 mg kg-1 and 0.31 mg kg-1. Residues of 2,4-dichlorophenoxyacetic acid, trifluralin and diflufenican were also detected in >40% of topsoil samples in both seasons, but with median concentrations of <0.05 mg kg-1. A literature review found limited availability of phytotoxicity thresholds for major grain crops exposed to soilborne herbicide residues. A risk assessment using available thresholds suggested that although up to 29% of fields contained trifluralin residues that could constrain cereal crop growth, and 24% of fields contained residues of phenoxy or sulfonylureas that could affect dicotyledonous crops, the majority of these fields when planted with tolerant crops would be unlikely to be affected by herbicide residues. More work is required to ascertain the spatial distribution, bioavailability and phytotoxicity of residues and residue mixtures to enable a more accurate agronomic risk assessment.
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Affiliation(s)
- Michael T Rose
- NSW Department of Primary Industries, Wollongbar, NSW 2477, Australia; Cooperative Research Centre for High Performance Soils, Callaghan, NSW 2380, Australia.
| | - Pei Zhang
- Agriculture Victoria Research (AVR), Macleod, VIC 3085, Australia
| | - Terry J Rose
- Southern Cross University, Lismore, NSW 2480, Australia; Cooperative Research Centre for High Performance Soils, Callaghan, NSW 2380, Australia
| | - Craig A Scanlan
- Department of Primary Industries and Regional Development, Northam, WA 6401, Australia
| | - Gavan McGrath
- Agriculture Discipline, College of Science, Health, Engineering and Education, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia; Biodiversity and Conservation Science, Department of Biodiversity Conservation and Attractions, Kensington, WA 6151, Australia; Cooperative Research Centre for High Performance Soils, Callaghan, NSW 2380, Australia
| | - Lukas Van Zwieten
- NSW Department of Primary Industries, Wollongbar, NSW 2477, Australia; Southern Cross University, Lismore, NSW 2480, Australia; Cooperative Research Centre for High Performance Soils, Callaghan, NSW 2380, Australia
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18
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Scientific Evidence behind the Ecosystem Services Provided by Sustainable Urban Drainage Systems. LAND 2022. [DOI: 10.3390/land11071040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Urban green infrastructure such as sustainable urban drainage systems are potential providers of ecosystem services. This paper reviews the field studies that empirically verify the potential benefits of SUDS. The cultural, provisioning, supporting, and regulating ecosystem services investigated in real cases have been studied and classified according to climatology (except for the control of urban hydrology, which has been widely corroborated). Although successful cases of runoff decontamination are numerous, there is heterogeneity in the results of the systems beyond those associated with climatic differences. The other ecosystem services have not been as widely studied, giving very variable and even negative results in some cases such as climate change control (in some instances, these techniques can emit greenhouse gases). Installations in temperate climates are, by far, the most studied. These services derive from the biological processes developed in green infrastructure and they depend on climate, so it would be advisable to carry out specific studies that could serve as the basis for a design that optimizes potential ecosystem services, avoiding possible disservices.
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19
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Yang F, Gato-Trinidad S, Hossain I. New insights into the pollutant composition of stormwater treating wetlands. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 827:154229. [PMID: 35248643 DOI: 10.1016/j.scitotenv.2022.154229] [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: 10/05/2021] [Revised: 02/01/2022] [Accepted: 02/25/2022] [Indexed: 06/14/2023]
Abstract
With intensified climate change and urbanisation, constructed wetland (CW) serves as an alternative to conventional wastewater treatment plants. In Australia, the primary function of CW is to reduce sediments, nutrients from runoffs and attenuate floods. However, water quality analysis after construction is limited, hence, pollutant composition in established CWs and target pollutants in many guidelines remain outdated. To refresh the understanding of pollutants in urban discharges, this study reviewed two CWs in industrialised regions of Victoria, Australia. A total number of 26 pollutants were analysed in the collected water and sediment samples from both CW. The findings highlighted excessive concentrations of Zinc, Aluminium, Iron and Copper in one wetland and less commonly found pollutants like Barium, Titanium and Strontium are also detected. While Arsenic, Zinc, Copper, Nickel and hydrocarbons' accumulations are particularly significant in the other wetland. This study also reviews the pollutants discovered in 136 stormwater wetlands and covers the sources and impacts of various metal pollutants in stormwater runoffs. Overall, it is found that the concentrations of Zinc, Aluminium and Iron are particularly high in the CWs reviewed. This study brings attention to the pollutants profile of established CWs and the impact of heavy metals on the aquatic environment. The findings from this research revealed that the existing design and management guidelines for constructed wetlands in urban catchments are lacking in reduction targets for metal pollutants, thus improvements are essential to safeguard the water quality and performance of CWs.
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Affiliation(s)
- Fujia Yang
- School of Engineering, Swinburne University of Technology, Hawthorn, VIC 3122, Australia.
| | - Shirley Gato-Trinidad
- School of Engineering, Swinburne University of Technology, Hawthorn, VIC 3122, Australia
| | - Iqbal Hossain
- School of Engineering, Swinburne University of Technology, Hawthorn, VIC 3122, Australia
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20
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Myers JH, Rose G, Odell E, Zhang P, Bui A, Pettigrove V. Household herbicide use as a source of simazine contamination in urban surface waters. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 299:118868. [PMID: 35063546 DOI: 10.1016/j.envpol.2022.118868] [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: 06/24/2021] [Revised: 01/12/2022] [Accepted: 01/16/2022] [Indexed: 06/14/2023]
Abstract
Contamination of urban surface waters by herbicides is an increasing concern; however, sources of contamination are poorly understood, hindering the development of mitigation and regulatory strategies. Impervious surfaces, such as concrete in driveways and paths are considered an important facilitator for herbicide runoff to urban surface waters following applications by residential homeowners. This study assessed the transferability of a herbicide from concrete pavers treated with an off-the-shelf product, containing simazine as the active herbicide, marketed for residential homeowner application to impervious surfaces. Commercially available pavers were treated according to label directions and the effects of exposure time prior to irrigation, repeated irrigations, and dry time between irrigations on transferability of simazine to runoff were assessed. Simazine transferability was greatest when receiving an initial irrigation 1 h after application, with concentrations in runoff reduced by half when exposure times prior to the first irrigation were >2 days. Concentrations remained stable for repeated irrigations up to 320 days and exposures to outdoor conditions of 180 days prior to a first irrigation. Dry time between irrigations significantly influenced simazine transfer to runoff. Dry periods of 140 days resulted in approximately a 4-times increase in simazine transferability to runoff. These results suggest that herbicides used by homeowners, or any other users, on impervious surfaces are available to contaminate runoff for prolonged time periods following application at concentrations that may pose risks to aquatic life and for reuse of harvested runoff on parks and gardens. Regulators should consider the potential of hard surfaces to act as reservoirs for herbicides when developing policies and labelling products.
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Affiliation(s)
- Jackie H Myers
- Aquatic Environmental Stress Research Group, RMIT University, PO Box 71, Bundoora, Victoria, 3083, Australia.
| | - Gavin Rose
- Aquatic Environmental Stress Research Group, RMIT University, PO Box 71, Bundoora, Victoria, 3083, Australia
| | - Erica Odell
- Aquatic Environmental Stress Research Group, RMIT University, PO Box 71, Bundoora, Victoria, 3083, Australia.
| | - Pei Zhang
- Department of Economic Development, Jobs, Transport and Resources, MacLeod, Victoria, 3085, Australia.
| | - AnhDuyen Bui
- Department of Economic Development, Jobs, Transport and Resources, MacLeod, Victoria, 3085, Australia.
| | - Vincent Pettigrove
- Aquatic Environmental Stress Research Group, RMIT University, PO Box 71, Bundoora, Victoria, 3083, Australia.
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21
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Araujo GDF, Soares LOS, Junior SFS, Barreto de Carvalho LV, Rocha RCC, Saint'Pierre T, Hauser-Davis RA, Correia FV, Saggioro EM. Oxidative stress and metal homeostasis alterations in Danio rerio (zebrafish) under single and combined carbamazepine, acetamiprid and cadmium exposures. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2022; 245:106122. [PMID: 35180455 DOI: 10.1016/j.aquatox.2022.106122] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 02/08/2022] [Accepted: 02/12/2022] [Indexed: 06/14/2023]
Abstract
Contaminants of emerging concern (CEC) are routinely detected in aquatic environments, especially pharmaceuticals, such as carbamazepine (CBZ), and neonicotinoid pesticides, like acetamiprid (ACT). CECs can interact with each other and with other legislated contaminants like Cd, resulting in unknown effects. Most studies evaluate only the effects of single contaminant exposures on aquatic biota. Therefore, the aim of the present study was to assess the effects of both single and combined CBZ, ACT and Cd exposures on zebrafish brain and liver oxidative stress parameters and metal homeostasis. The biomarkers catalase (CAT), glutathione-S-transferase (GST), total thiols (TOT), metallothionein (MT) and malondialdehyde (MDA) and the essential elements Ca, Cu, K, Na, Mg, Mn and Zn were evaluated after 96-hour static exposures. CBZ, ACT and Cd single (brain and liver) and combined (liver) treatments resulted in oxidative effects in both fish organs, also leading to metal (Ca, Mg, K, Mn, Zn and Cu) homeostasis alterations. ACT exposure resulted in the greatest adverse effects in the brain, while CBZ was the cause of major element homeostasis and oxidative stress alterations in the liver. Lower LPO levels were observed in the combined treatments compared to single treatments, suggesting interactions and contaminant effect attenuation. This study is the first to evaluate the initial effects of combined CBZ, ACT and Cd exposures in zebrafish, paving the way for further investigations concerning other biomarkers during longer exposure times.
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Affiliation(s)
- Gabriel de Farias Araujo
- Programa de Pós-Graduação em Saúde Pública e Meio Ambiente, Sergio Arouca National School of Public Health, Oswaldo Cruz Foundation, Av. Leopoldo Bulhões 1480, 21041-210 Rio de Janeiro, RJ, Brazil
| | | | - Sidney Fernandes Sales Junior
- Programa de Pós-Graduação em Saúde Pública e Meio Ambiente, Sergio Arouca National School of Public Health, Oswaldo Cruz Foundation, Av. Leopoldo Bulhões 1480, 21041-210 Rio de Janeiro, RJ, Brazil
| | - Leandro Vargas Barreto de Carvalho
- Center of Studies on Worker's Health and Human Ecology, Sergio Arouca National School of Public Health, Oswaldo Cruz Foundation, Av. Leopoldo Bulhões 1480, 21041-210 Rio de Janeiro, RJ, Brazil
| | - Rafael Christian Chávez Rocha
- Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Departamento de Química, Gávea, Rio de Janeiro, RJ, Brasil
| | - Tatiana Saint'Pierre
- Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Departamento de Química, Gávea, Rio de Janeiro, RJ, Brasil
| | - Rachel Ann Hauser-Davis
- Programa de Pós-Graduação em Saúde Pública e Meio Ambiente, Sergio Arouca National School of Public Health, Oswaldo Cruz Foundation, Av. Leopoldo Bulhões 1480, 21041-210 Rio de Janeiro, RJ, Brazil; Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz. Av. Brasil, 4.365, Manguinhos. 21040-360, Rio de Janeiro, Brasil
| | - Fábio Veríssimo Correia
- Programa de Pós-Graduação em Saúde Pública e Meio Ambiente, Sergio Arouca National School of Public Health, Oswaldo Cruz Foundation, Av. Leopoldo Bulhões 1480, 21041-210 Rio de Janeiro, RJ, Brazil; UNIRIO, Departamento de Ciências Naturais, Av. Pasteur, 458, Urca, 22290-20, Rio de Janeiro, Brazil
| | - Enrico Mendes Saggioro
- Programa de Pós-Graduação em Saúde Pública e Meio Ambiente, Sergio Arouca National School of Public Health, Oswaldo Cruz Foundation, Av. Leopoldo Bulhões 1480, 21041-210 Rio de Janeiro, RJ, Brazil; Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz. Av. Brasil, 4.365, Manguinhos. 21040-360, Rio de Janeiro, Brasil.
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22
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Tao Y, Li Z, Yang Y, Jiao Y, Qu J, Wang Y, Zhang Y. Effects of common environmental endocrine-disrupting chemicals on zebrafish behavior. WATER RESEARCH 2022; 208:117826. [PMID: 34785404 DOI: 10.1016/j.watres.2021.117826] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 10/05/2021] [Accepted: 10/27/2021] [Indexed: 06/13/2023]
Abstract
Environmental endocrine-disrupting chemicals (EDCs), a type of exogenous organic pollutants, are ubiquitous in natural aquatic environments. Therefor, this review focused on the use of the zebrafish as a model to explore the effect of different EDCs on behavior, as well as the molecular mechanisms that drive these effects. Furthermore, our study summarizes the current knowledge on the neuromodulatory effects of different EDCs in zebrafish. This study also reviews the current state of zebrafish behavior research, in addition to the potential mechanisms of single and mixed pollutant-driven behavioral dysregulation at the molecular level, as well as the applications of zebrafish behavior experiments for neuroscience research. This review broadens our understanding of the influence of EDCs on zebrafish behavior and provides guidance for future research.
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Affiliation(s)
- Yue Tao
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Zixu Li
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Yang Yang
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Yaqi Jiao
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Jianhua Qu
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Yifan Wang
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Ying Zhang
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China.
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23
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Pérez DJ, Doucette WJ, Moore MT. Atrazine uptake, translocation, bioaccumulation and biodegradation in cattail (Typha latifolia) as a function of exposure time. CHEMOSPHERE 2022; 287:132104. [PMID: 34523452 DOI: 10.1016/j.chemosphere.2021.132104] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/24/2021] [Accepted: 08/29/2021] [Indexed: 06/13/2023]
Abstract
The extensive use and environmental persistence of atrazine has resulted in its ubiquitous occurrence in water resources. Some reports have described atrazine bioaccumulation and biodegradation pathways in terrestrial plants, but few have done so in aquatic macrophytes. Thus, in this study, we aimed to analyze morphological changes, uptake, translocation and bioaccumulation patterns in tissues of the aquatic macrophyte Typha latifolia (cattail) after long-term atrazine exposure and to determine the presence of atrazine biodegradation metabolites, desethylatrazine (DEA) and desisopropylatrazine (DIA), in tissues. Plants were hydroponically exposed to 20 μg/L atrazine (18 exposed and 18 non-exposed) for 7, 14, 21, 28, 35 and 42 days. Plants were separated into root, rhizome, stem, and lower, middle and upper leaf sections. Atrazine was analyzed by LC-MS/MS and DIA and DEA by LC-DAD. Plants showed reductions in weight (after 21 days) and transpiration (after 28 days), both symptoms of chronic phytotoxicity. The distribution of atrazine within tissues, expressed as concentration levels (μg/kg dry weight), was as follows: middle leaf (406.10 ± 71.77) = upper leaf (339.15 ± 47.60) = lower leaf (262.43 ± 7.66) = sprout (274.53 ± 58.1) > stem (38.63 ± 7.55) = root (36.00 ± 3.49) = rhizome (26.15 ± 3.96). In submerged tissues, DEA and DIA were detected at similar concentrations. In leaves, DIA was the main metabolite identified. Results indicated that atrazine was taken up from roots to shoots and induced phytotoxicity effects that reduced the translocation to shoots. Typha likely is able to biodegrade atrazine via different metabolic pathways.
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Affiliation(s)
- Débora Jesabel Pérez
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Ciudad Autónoma de Buenos Aires, Buenos Aires, C1425FQB, Argentina; Instituto de Innovación Para la Producción Agropecuaria y el Desarrollo Sostenible (INTA Balcarce - CONICET), Ruta Nacional 226 Km 73,5, Balcarce, Buenos Aires, 7620, Argentina; Utah Water Research Laboratory, Utah State University, Logan, UT 834341, USA.
| | | | - Matthew Truman Moore
- Water Quality and Ecology Research Unit, United States Department of Agriculture-ARS National Sedimentation Laboratory, 598 McElroy Drive, Oxford, MS 38655, USA
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24
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Zhou S, Dong J, Liu Y, Yang Q, Xu N, Yang Y, Ai X. Effects of acute deltamethrin exposure on kidney transcriptome and intestinal microbiota in goldfish (Carassius auratus). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 225:112716. [PMID: 34478975 DOI: 10.1016/j.ecoenv.2021.112716] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 08/16/2021] [Accepted: 08/26/2021] [Indexed: 06/13/2023]
Abstract
As a widely used synthetic pyrethroid insecticide, deltamethrin (DM) causes serious health problems to aquatic organisms. However, the comprehensive understanding of the adverse effect of DM on aquatic organisms has received limited attention. In this study, goldfish (Carassius auratus) were exposed to 0 (control group), 0.2 and 2 µg/L DM for 96 h. The kidney transcriptome and intestinal microbiota were investigated. Comparative transcriptome analysis identified 270 and 711 differentially expressed genes (DEGs) in goldfish kidneys after exposure to 0.2 and 2 µg/L DM, respectively. KEGG pathway analysis revealed that the apoptosis pathway was markedly regulated and the regulation of programmed cell death was significantly enriched by the GO analysis. Several apoptosis-related genes including cathepsin L and cytochrome c were also detected. These results indicated that apoptosis occurred in the goldfish kidney after acute exposure to sublethal concentration of DM. Besides, some immune and drug metabolism-related DEGs were identified, indicating that exposure to DM caused immunotoxicity and metabolic disruption in goldfish. Additionally, 16 S rRNA gene sequencing analysis revealed a remarkable alteration in the composition of the intestinal microbial community of DM-treated goldfish. At the phylum level, the abundance of Proteobacteria, Firmicutes and Fusobacteria was increased, whereas the abundance of Bacteroidetes was reduced significantly after DM exposure. At the genus level, the abundance of Aeromonas, Cetobacterium, Dielma and Pseudorhodobacter was reduced, whereas Akkermansia was increased after DM exposure. In summary, exposure to DM could induce apoptosis and immunotoxicity in goldfish kidneys and affect the composition of the intestinal microbiota in goldfish. This study provides a comprehensive analysis of the adverse effect of DM exposure on the goldfish and will be helpful for understanding the toxicological mechanisms of DM in fish.
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Affiliation(s)
- Shun Zhou
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; Hu Bei Province Engineering and Technology Research Center of Aquatic Product Quality and Safety, Wuhan 430223, China
| | - Jing Dong
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; Hu Bei Province Engineering and Technology Research Center of Aquatic Product Quality and Safety, Wuhan 430223, China
| | - Yongtao Liu
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; Hu Bei Province Engineering and Technology Research Center of Aquatic Product Quality and Safety, Wuhan 430223, China
| | - Qiuhong Yang
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; Hu Bei Province Engineering and Technology Research Center of Aquatic Product Quality and Safety, Wuhan 430223, China
| | - Ning Xu
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; Hu Bei Province Engineering and Technology Research Center of Aquatic Product Quality and Safety, Wuhan 430223, China
| | - Yibin Yang
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; Hu Bei Province Engineering and Technology Research Center of Aquatic Product Quality and Safety, Wuhan 430223, China
| | - Xiaohui Ai
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; Hu Bei Province Engineering and Technology Research Center of Aquatic Product Quality and Safety, Wuhan 430223, China.
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25
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Vitamin C Mitigates Oxidative Stress and Behavioral Impairments Induced by Deltamethrin and Lead Toxicity in Zebrafish. Int J Mol Sci 2021; 22:ijms222312714. [PMID: 34884514 PMCID: PMC8657856 DOI: 10.3390/ijms222312714] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 11/15/2021] [Accepted: 11/22/2021] [Indexed: 12/21/2022] Open
Abstract
Environmental contamination from toxic metals and pesticides is an issue of great concern due to their harmful effects to human health and the ecosystems. In this framework, we assessed the adverse effects when aquatic organisms are exposed to toxicants such as deltamethrin (DM) and lead (Pb), alone or in combination, using zebrafish as a model. Moreover, we likewise evaluated the possible protective effect of vitamin C (VC) supplementation against the combined acute toxic effects of the two toxicants. Juvenile zebrafish were exposed to DM (2 μg L-1) and Pb (60 μg L-1) alone and in combination with VC (100 μg L-1) and responses were assessed by quantifying acetylcholinesterase (AChE) activity, lipid peroxidation (MDA), some antioxidant enzyme activities (SOD and GPx), three-dimension locomotion responses and changes of elements concentrations in the zebrafish body. Our results show that VC has mitigative effects against behavioral and biochemical alterations induced by a mixture of contaminants, demonstrating that it can be used as an effective antioxidant. Moreover, the observations in the study demonstrate zebrafish as a promising in vivo model for assessing the neuroprotective actions of bioactive compounds.
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26
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Nélieu S, Lamy I, Karolak S, Delarue G, Crouzet O, Barraud C, Bimbot M, Allaoui F, Hanot C, Delorme A, Lévi Y, Hulot FD, Baudry E. Impact of peri-urban landscape on the organic and mineral contamination of pond waters and related risk assessment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:59256-59267. [PMID: 32779063 DOI: 10.1007/s11356-020-10355-5] [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: 02/28/2020] [Accepted: 08/03/2020] [Indexed: 06/11/2023]
Abstract
Ponds are important for their ecological value and for the ecosystem services they provide to human societies, but they are strongly affected by human activities. Peri-urban development, currently one of the most pervasive processes of land use change in Europe, exposes ponds to both urban and agricultural contaminants, causing a potential combination of adverse effects. This study, focused on 12 ponds located in a peri-urban area, has two main objectives: (1) to link the physico-chemical characteristics of the waters and the nature of their contaminants, either organic or mineral, with the human activities around ponds, and (2) to estimate the environmental risk caused by these contaminants. The ponds were sampled during two consecutive years in both spring and in autumn. Although the ponds were distributed over a limited geographical area, their contamination profiles were different and more correlated with the agricultural than the urban land use. In terms of aptitude for biology, half of the ponds were classified in degraded states due to their physico-chemical parameters, but without correlation with the endocrine disrupting activities and the levels of organic pollutants as indicators. The main quantified organic pollutants, however, were pesticides with sufficiently high levels in certain cases to induce an environmental risk exceeding the classical thresholds of risk quotient.
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Affiliation(s)
- Sylvie Nélieu
- Université Paris-Saclay, INRAE, AgroParisTech, UMR ECOSYS, 78850, Thiverval-Grignon, France.
| | - Isabelle Lamy
- Université Paris-Saclay, INRAE, AgroParisTech, UMR ECOSYS, 78026, Versailles, France
| | - Sara Karolak
- Université Paris-Saclay, CNRS, AgroParisTech, UMR ESE, 91405, Orsay, France
| | - Ghislaine Delarue
- Université Paris-Saclay, INRAE, AgroParisTech, UMR ECOSYS, 78850, Thiverval-Grignon, France
| | - Olivier Crouzet
- Université Paris-Saclay, INRAE, AgroParisTech, UMR ECOSYS, 78026, Versailles, France
- Office Français de la Biodiversité (OFB), DRAS - UPFSEO, Saint-Benoît, 78610, Auffargis, France
| | - Claire Barraud
- Université Paris-Saclay, CNRS, AgroParisTech, UMR ESE, 91405, Orsay, France
| | - Maya Bimbot
- Université Paris-Saclay, CNRS, AgroParisTech, UMR ESE, 91405, Orsay, France
| | - Fatima Allaoui
- Université Paris-Saclay, CNRS, AgroParisTech, UMR ESE, 91405, Orsay, France
| | - Christophe Hanot
- Université Paris-Saclay, CNRS, AgroParisTech, UMR ESE, 91405, Orsay, France
| | | | - Yves Lévi
- Université Paris-Saclay, CNRS, AgroParisTech, UMR ESE, 91405, Orsay, France
| | - Florence D Hulot
- Université Paris-Saclay, CNRS, AgroParisTech, UMR ESE, 91405, Orsay, France
| | - Emmanuelle Baudry
- Université Paris-Saclay, CNRS, AgroParisTech, UMR ESE, 91405, Orsay, France
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27
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Merhabi F, Gomez E, Amine H, Rosain D, Halwani J, Fenet H. Occurrence, distribution, and ecological risk assessment of emerging and legacy contaminants in the Kadicha river in Lebanon. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:62499-62518. [PMID: 34212327 DOI: 10.1007/s11356-021-15049-0] [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: 03/17/2021] [Accepted: 06/17/2021] [Indexed: 06/13/2023]
Abstract
The Kadicha river basin in Northern Lebanon is an illustrative example of multiple pressures encountered in the Mediterranean region: it is a small coastal river affected by rapid urbanization, population growth (drastically impacted by the influx of Syrian refugees), and a chronic default of wastewater treatment. In this context, multiple classes of contaminants may attain the river accumulating in sediment. However, very little information is available in the literature on the contamination status in such stressed Mediterranean contexts. This study proposed a first contamination evaluation of a small Mediterranean river submitted to multiple pressures. Two sediment sampling campaigns along sites impacted by increasing urban gradient within the Kadicha river basin were performed to determine the occurrence and the environmental risks of both emerging and legacy contaminants. The results revealed the detection of the 41 studied compounds. The highest concentrations were attained by PAHs and polycyclic musks (up to 311.79, 94.22, and 81.13 ng/g of dry weight for PAH, cashmeran, and galaxolide, respectively). The discontinuous urbanized upstream area and the estuary were the most contaminated areas of the river. An environmental risk assessment showed a hazard quotient (HQ) higher than 1 for both legacy and emerging compounds (EHMC and 4-MBC), indicating a potential risk to benthic species. Monitoring campaigns and implementation of wastewater treatment plants should be encouraged as the anthropogenic pressure on small Mediterranean rivers will increase over the years.
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Affiliation(s)
- Fatmé Merhabi
- Hydrosciences Montpellier, IRD, CNRS, University of Montpellier, Montpellier, France.
- Water & Environment Science Laboratory, Faculty of Public Health (FSP III), Lebanese University, Tripoli, Lebanon.
| | - Elena Gomez
- Hydrosciences Montpellier, IRD, CNRS, University of Montpellier, Montpellier, France
| | - Helmieh Amine
- Water & Environment Science Laboratory, Faculty of Public Health (FSP III), Lebanese University, Tripoli, Lebanon
| | - David Rosain
- Hydrosciences Montpellier, IRD, CNRS, University of Montpellier, Montpellier, France
| | - Jalal Halwani
- Water & Environment Science Laboratory, Faculty of Public Health (FSP III), Lebanese University, Tripoli, Lebanon
| | - Hélène Fenet
- Hydrosciences Montpellier, IRD, CNRS, University of Montpellier, Montpellier, France
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28
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Brans KI, Almeida RA, Fajgenblat M. Genetic differentiation in pesticide resistance between urban and rural populations of a nontarget freshwater keystone interactor, Daphnia magna. Evol Appl 2021; 14:2541-2552. [PMID: 34745342 PMCID: PMC8549624 DOI: 10.1111/eva.13293] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 07/01/2021] [Accepted: 08/03/2021] [Indexed: 01/02/2023] Open
Abstract
There is growing evidence that urbanization drives adaptive evolution in response to thermal gradients. One such example is documented in the water flea Daphnia magna. However, organisms residing in urban lentic ecosystems are increasingly exposed to chemical pollutants such as pesticides through run-off and aerial transportation. The extent to which urbanization drives the evolution of pesticide resistance in aquatic organisms and whether this is impacted by warming and thermal adaptation remains limitedly studied. We performed a common garden rearing experiment using multiple clonal lineages originating from five replicated urban and rural D. magna populations, in which we implemented an acute toxicity test exposing neonates (<24h) to either a solvent control or the organophosphate pesticide chlorpyrifos. Pesticide exposures were performed at two temperatures (20°C vs. 24°C) to test for temperature-associated differences in urbanization-driven evolved pesticide resistance. We identified a strong overall effect of pesticide exposure on Daphnia survival probability (-72.8 percentage points). However, urban Daphnia genotypes showed higher survival probabilities compared to rural ones in the presence of chlorpyrifos (+29.7 percentage points). Our experiment did not reveal strong temperature x pesticide or temperature x pesticide x urbanization background effects on survival probability. The here observed evolution of resistance to an organophosphate pesticide is a first indication Daphnia likely also adapts to pesticide pollution in urban areas. Increased pesticide resistance could facilitate their population persistence in urban ponds, and feed back to ecosystem functions, such as top-down control of algae. In addition, adaptive evolution of nontarget organisms to pest control strategies and occupational pesticide use may modulate how pesticide applications affect genetic and species diversity in urban areas.
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Affiliation(s)
- Kristien I. Brans
- Laboratory of Aquatic Ecology, Evolution, and ConservationKU LeuvenLeuvenBelgium
| | - Rafaela A. Almeida
- Laboratory of Aquatic Ecology, Evolution, and ConservationKU LeuvenLeuvenBelgium
| | - Maxime Fajgenblat
- Laboratory of Aquatic Ecology, Evolution, and ConservationKU LeuvenLeuvenBelgium
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29
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Ahmad A, Priyadarshani M, Das S, Ghangrekar MM. Role of bioelectrochemical systems for the remediation of emerging contaminants from wastewater: A review. J Basic Microbiol 2021; 62:201-222. [PMID: 34532865 DOI: 10.1002/jobm.202100368] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 08/30/2021] [Accepted: 09/04/2021] [Indexed: 02/05/2023]
Abstract
Bioelectrochemical systems (BESs) are a unique group of wastewater remediating technology that possesses the added advantage of valuable recovery with concomitant wastewater treatment. Moreover, due to the application of robust microbial biocatalysts in BESs, effective removal of emerging contaminants (ECs) can be accomplished in these BESs. Thus, this review emphasizes the recent demonstrations pertaining to the removal of complex organic pollutants of emerging concern present in wastewater through BES. Owing to the recalcitrant nature of these pollutants, they are not effectively removed through conventional wastewater treatment systems and thereby are discharged into the environment without proper treatment. Application of BES in terms of ECs removal and degradation mechanism along with valuables that can be recovered are discussed. Moreover, the factors affecting the performance of BES, like biocatalyst, substrate, salinity, and applied potential are also summarized. In addition, the present review also elucidates the occurrence and toxic nature of ECs as well as future recommendations pertaining to the commercialization of this BES technology for the removal of ECs from wastewater. Therefore, the present review intends to aid the researchers in developing more efficient BESs for the removal of ECs from wastewater.
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Affiliation(s)
- Azhan Ahmad
- Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
| | - Monali Priyadarshani
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
| | - Sovik Das
- Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
| | - Makarand Madhao Ghangrekar
- Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India.,School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
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Chen Y, Huang R, Guan Y, Zhuang T, Wang Y, Tan R, Wang J, Zhou R, Wang B, Xu J, Zhang X, Zhou K, Sun R, Chen M. The profiling of elements and pesticides in surface water in Nanjing, China with global comparisons. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 774:145749. [PMID: 33610981 DOI: 10.1016/j.scitotenv.2021.145749] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 02/04/2021] [Accepted: 02/05/2021] [Indexed: 06/12/2023]
Abstract
The study on high-throughput determination covering various kinds of elements and pesticides in surface water is rarely reported. The surface water samples were collected from the Yangtze River, the Qinhuai River and the Xuanwu Lake in Nanjing which is a large and populous city in eastern China, and elementome (47 elements) and pesticide exposome (60 pesticides) were profiled, which were characterized by univariate and multivariate statistical analysis, literature comparison, and risk assessment. A total of 47 elements and 47 pesticides were detectable. By combining the results of univariate and multivariate statistical analysis, we consistently found that the levels of elements in the Qinhuai River were relatively higher than those in the Yangtze River and the Xuanwu Lake, mainly including rare earth elements and macroelements. The concentrations of isoprocarb, profenofos and simazine in the Yangtze River were relatively higher than those in the Qinhuai River and the Xuanwu Lake. Based on literature search and our data, the results about global element and pesticide concentrations in surface water were summarized. The surface water in Nanjing showed notably higher aluminum level when compared to the level around the world. The risk assessment suggested that arsenic posed a considerable carcinogenic risk. This study provided a large volume of first-hand information about the profiles of elements and pesticides in surface water, which can be used for warning of surface water pollution and preventing potential hazardous effect on public health.
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Affiliation(s)
- Yina Chen
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Rui Huang
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Yusheng Guan
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Tingyu Zhuang
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Yuanyuan Wang
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Renchuan Tan
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Jie Wang
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Ruijing Zhou
- Gulou District Center for Disease Control and Prevention, Nanjing 210003, China
| | - Biying Wang
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Jianing Xu
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Xiaoling Zhang
- Department of Hygienic Analysis and Detection, Nanjing Medical University, Nanjing 211166, China
| | - Kun Zhou
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Rongli Sun
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Minjian Chen
- State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
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Wei F, Wang D, Li H, You J. Joint toxicity of imidacloprid and azoxystrobin to Chironomus dilutus at organism, cell, and gene levels. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 233:105783. [PMID: 33662881 DOI: 10.1016/j.aquatox.2021.105783] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 02/04/2021] [Accepted: 02/11/2021] [Indexed: 06/12/2023]
Abstract
Pesticides occur in the environment as mixtures, yet the joint toxicity of pesticide mixtures remains largely under-explored and is usually overlooked in ecological risk assessment. In the current study, joint toxicity of a neonicotinoid insecticide (imidacloprid, IMI) and a strobilurin fungicide (azoxystrobin, AZO) was investigated with Chironomus dilutus over a wide range of concentrations and at different effect levels (organism, cell, and gene levels). The two pesticides, both individually and in combination, were found to induce oxidative stress and cause lethality in C. dilutus. Median lethal concentrations for IMI and AZO were 3.98 ± 1.17 and 52.9 ± 1.1 μg/L, respectively. Mixtures of the two pesticides presented synergetic effects at environmentally relevant concentrations whilst antagonistic effects at high concentrations, showing concentration-dependent joint toxicity. Investigation on the expressions of 12 genes (cyt b, coi, cox1, cyp4, cyp12m1, cyp9au1, cyp6fv1, cyp315, gst, Zn/Cu-sod, Mn-sod, and cat) revealed that the two pesticides impaired mitochondrial respiration, detoxification, and antioxidant system of C. dilutus, and the joint effects of the two pesticides were likely due to an interplay between their respective influences on these physiological processes. Collectively, the synergistic effects of the two pesticides at environmentally relevant concentrations highlight the importance to incorporate combined toxicity studies into ecological risk assessment of pesticides.
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Affiliation(s)
- Fenghua Wei
- School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou, 510632, China; School of Chemistry and Environment, Jiaying University, Meizhou, 514015, China
| | - Dali Wang
- School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou, 510632, China.
| | - Huizhen Li
- School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou, 510632, China
| | - Jing You
- School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou, 510632, China
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Prolonged atrazine exposure beginning in utero and adult uterine morphology in mice. J Dev Orig Health Dis 2021; 13:39-48. [PMID: 33781367 DOI: 10.1017/s2040174421000106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Through drinking water, humans are commonly exposed to atrazine, a herbicide that acts as an endocrine and metabolic disruptor. It interferes with steroidogenesis, including promoting oestrogen production and altering cell metabolism. However, its precise impact on uterine development remains unknown. This study aimed to determine the effect of prolonged atrazine exposure on the uterus. Pregnant mice (n = 5/group) received 5 mg/kg body weight/day atrazine or DMSO in drinking water from gestational day 9.5 until weaning. Offspring continued to be exposed until 3 or 6 months of age (n = 5-9/group), when uteri were collected for morphological and molecular analyses and steroid quantification. Endometrial hyperplasia and leiomyoma were evident in the uteri of atrazine-exposed mice. Uterine oestrogen concentration, oestrogen receptor expression, and localisation were similar between groups, at both ages (P > 0.1). The expression and localisation of key epithelial-to-mesenchymal transition (EMT) genes and proteins, critical for tumourigenesis, remained unchanged between treatments, at both ages (P > 0.1). Hence, oestrogen-mediated changes to established EMT markers do not appear to underlie abnormal uterine morphology evident in atrazine exposure mice. This is the first report of abnormal uterine morphology following prolonged atrazine exposure starting in utero, it is likely that the abnormalities identified would negatively affect female fertility, although mechanisms remain unknown and require further study.
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Voigt M, Jaeger M. Structure and QSAR analysis of photoinduced transformation products of neonicotinoids from EU watchlist for ecotoxicological assessment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 751:141634. [PMID: 32882550 DOI: 10.1016/j.scitotenv.2020.141634] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/06/2020] [Accepted: 08/09/2020] [Indexed: 06/11/2023]
Abstract
Current research is increasingly focusing on the ecotoxicity of anthropogenic micro-pollutants and their degradation and transformation products resulting from biological and chemical treatment processes. These products enter the aquatic environment through various routes and may endanger aquatic organisms and plants. In this study, five neonicotinoids from the EU watchlist and their degradation products induced by UVC irradiation were examined. All identified photoinduced degradation or transformation products were subsequently submitted to Quantitative Structure Activity (QSAR) analysis. Among the investigated structures, 15 substances already identified in previous studies and eleven new transformation products were analyzed. By using QSAR analysis, it became possible to predict ecotoxicity of individual substances with mere computational effort. Starting from the chemical structure, lower toxicity against green algae and invertebrates was predicted for the transformation products in general. For other aquatic target organisms, such as branchiopoda, actinopterygii and fathead minnow, the residual hazardous effect as compared to the initial compound depends on the presence of specific structural elements. For the neonicotinoids investigated, the cleavage or elimination of the nitrile or nitro group through the degradation process, was predicted to increase toxicity.
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Affiliation(s)
- Melanie Voigt
- Niederrhein University of Applied Sciences, Department of Chemistry and ILOC, Frankenring 20, D-47798 Krefeld, Germany
| | - Martin Jaeger
- Niederrhein University of Applied Sciences, Department of Chemistry and ILOC, Frankenring 20, D-47798 Krefeld, Germany.
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Pérez DJ, Iturburu FG, Calderon G, Oyesqui LAE, De Gerónimo E, Aparicio VC. Ecological risk assessment of current-use pesticides and biocides in soils, sediments and surface water of a mixed land-use basin of the Pampas region, Argentina. CHEMOSPHERE 2021; 263:128061. [PMID: 33297067 DOI: 10.1016/j.chemosphere.2020.128061] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 08/14/2020] [Accepted: 08/17/2020] [Indexed: 06/12/2023]
Abstract
The present study aimed to assess the ecological risk of 30 current-use agricultural pesticides and biocides in the soil, sediments and aquatic organisms of a mixed land-use basin located in the Depressed Pampas Region of Argentina. Risk Quotients (RQs) were used to evaluate the chronic risk in soil and aquatic organisms, while Toxic Units (TUs) were used to assess the acute risk in sediment-dwelling organisms and aquatic biota. Acetochlor, hydroxy-atrazine, glyphosate, AMPA, metolachlor, imidacloprid and tebuconazole were the only pesticide residues detected (>30%) and quantified in all the matrices evaluated. Glyphosate and AMPA showed the highest concentrations, being their mean and maximum levels 27.90-176.00 μg kg-1 and 270-712.50 μg kg-1 in soils, 8.28-32.0 μg kg-1 and 6.85-17.50 μg kg-1 in sediments, and 1.88-4.36 μg L-1 and 0.66-1.03 μg L-1 in surface water. The RQs in soils showed high chronic risk, mainly due to AMPA and imidacloprid. The TUs in sediments showed acute risk in dwelling organisms, mainly due to glyphosate and imidacloprid. RQs assessment showed a range of chronic risk levels according to the site/sampling event, with higher contribution of atrazine and its metabolites, and acetochlor, whereas TUs assessment showed no acute risk in aquatic biota. In contrast to Europe, in Argentina, there are no restrictions regarding the use of atrazine, acetochlor, imidacloprid and glyphosate to protect aquatic life. Thus, it is recommended that the current Argentine pesticide regulations should be modified to prevent ecological risk and protect ecosystems.
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Affiliation(s)
- Débora J Pérez
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Ciudad Autónoma de Buenos Aires, Zip Code C1425FQB, Buenos Aires, Argentina; Instituto Nacional de Tecnología Agropecuaria (INTA), Ruta 226 Km 73.5, Balcarce, Zip Code 7620, Buenos Aires, Argentina.
| | - Fernando G Iturburu
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Ciudad Autónoma de Buenos Aires, Zip Code C1425FQB, Buenos Aires, Argentina; Instituto de Investigaciones Marinas y Costeras (IIMYC) -CONICET/Universidad Nacional de Mar Del Plata, Dean Funes 3350, Mar Del Plata, Zip Code 7600, Buenos Aires, Argentina.
| | - Gabriela Calderon
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Ciudad Autónoma de Buenos Aires, Zip Code C1425FQB, Buenos Aires, Argentina; Instituto del Hábitat y del Ambiente, Universidad Nacional de Mar Del Plata, Dean Funes 3350, Mar Del Plata, Zip Code 7600, Buenos Aires, Argentina.
| | - Lía A E Oyesqui
- Instituto Nacional de Tecnología Agropecuaria (INTA), Alsina 2642, Olavarría, Zip Code 7400, Buenos Aires, Argentina.
| | - Eduardo De Gerónimo
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Ciudad Autónoma de Buenos Aires, Zip Code C1425FQB, Buenos Aires, Argentina; Instituto Nacional de Tecnología Agropecuaria (INTA), Ruta 226 Km 73.5, Balcarce, Zip Code 7620, Buenos Aires, Argentina.
| | - Virginia C Aparicio
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, Ciudad Autónoma de Buenos Aires, Zip Code C1425FQB, Buenos Aires, Argentina; Instituto Nacional de Tecnología Agropecuaria (INTA), Ruta 226 Km 73.5, Balcarce, Zip Code 7620, Buenos Aires, Argentina.
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35
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Paul V, Sankar MS, Vattikuti S, Dash P, Arslan Z. Pollution assessment and land use land cover influence on trace metal distribution in sediments from five aquatic systems in southern USA. CHEMOSPHERE 2021; 263:128243. [PMID: 33297190 DOI: 10.1016/j.chemosphere.2020.128243] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/29/2020] [Accepted: 08/31/2020] [Indexed: 06/12/2023]
Abstract
Trace elements and heavy metals concentrate in aquatic sediments, potentially endangering benthic organisms. Comparing the concentration of metals in different aquatic bodies will help evaluate their accumulation and distribution characteristics within these systems. Metal pollution and enrichment indices in sediments from diverse aquatic systems in Southern USA, including agricultural ponds, man-made reservoir, river, swamp, and coastal environment were investigated. Following total digestion of the sediments, the concentrations of chromium (Cr), cobalt (Co), copper (Cu), zinc (Zn), arsenic (As), selenium (Se), cadmium (Cd), antimony (Sb), lead (Pb), and uranium (U) were measured using inductively coupled plasma-mass spectrometry (ICP-MS). Pb was found to be highly enriched in the sediment samples from all five environments. The samples from coastal and agricultural ponds showed highest degree of anthropogenic modification (enrichment factor >10), especially with Se, U, and Pb. Agricultural ponds, previously unknown as a metal hotspot, had the most deteriorated sediment quality as determined by high pollution load index (>1) and contamination factor (>6) for Cd and U. Principal component analysis comparing land use land cover distribution surrounding the aquatic systems to metal concentrations confirmed that agriculture-related land activities correlated well with majority of the metals. Overall, compared to agricultural ponds and coastal regions, sediments in river, swamp and man-made reservoir systems contained relatively fewer metal pollutants, the former two serving as collection points for metal-laden fertilizers and chemicals. The research provides key insights into simultaneously comparing metal accumulation in multiple water bodies and is useful to test and develop effective sediment quality guidelines.
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Affiliation(s)
- Varun Paul
- Department of Geosciences, Mississippi State University, Mississippi State, MS, 39762, USA.
| | - M S Sankar
- Department of Geosciences, Mississippi State University, Mississippi State, MS, 39762, USA; Geosystems Research Institute, Mississippi State University, Mississippi State, MS, 39762, USA
| | - Shannon Vattikuti
- Department of Geosciences, Mississippi State University, Mississippi State, MS, 39762, USA
| | - Padmanava Dash
- Department of Geosciences, Mississippi State University, Mississippi State, MS, 39762, USA
| | - Zikri Arslan
- U.S. Geological Survey, MS 973, Federal Center, Denver, CO, 80225, USA
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Comparing Trace Elements (As, Cu, Ni, Pb, and Zn) in Soils and Surface Waters among Montane, Upland Watersheds and Lowland, Urban Watersheds in New England, USA. WATER 2020. [DOI: 10.3390/w13010059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Trace element biogeochemistry from soils to rivers is important for toxicity to aquatic ecosystems. The objective of this study was to determine whether trace element exports in contrasting watersheds are controlled by their abundance in soil, current land uses in the watershed, or geologic processes. Upland soils and river water samples were collected throughout the Deerfield watershed in southern Vermont and western Massachusetts and in the Quinebaug and Shetucket watersheds of eastern Connecticut. Soil concentrations were only an important predictor for dissolved Fe export, but no other trace element. Soil pH was not correlated with normalized dissolved exports of trace elements, but DOC was correlated with normalized dissolved Pb and Ni exports. The limited spatial and depth of soil sampling may have contributed to the poor correlation. Surprisingly, linear regressions and principal component analysis showed that human development was associated with higher soil trace metal concentrations but not significantly correlated with dissolved trace elements export. Instead, forest abundance was a strong predictor for lower Cu, Pb, and Zn soil concentrations and lower As, Fe, Ni and Pb dissolved exports across the watersheds. Dissolved exports of Al, K, and Si suggest that enhanced mineral dissolution in the montane watersheds was likely an important factor for matching or exceeding normalized pollutant trace element exports in more urbanized watersheds. Further studies are needed to evaluate subsurface/hyporheic controls as well as soil–surface water interface to quantify exchange and transport.
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Tyohemba RL, Pillay L, Humphries MS. Herbicide residues in sediments from Lake St Lucia (iSimangaliso World Heritage Site, South Africa) and its catchment areas: Occurrence and ecological risk assessment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 267:115566. [PMID: 32911338 DOI: 10.1016/j.envpol.2020.115566] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 08/07/2020] [Accepted: 08/27/2020] [Indexed: 05/16/2023]
Abstract
The impact of agricultural pesticides on sensitive aquatic ecosystems is a matter of global concern. Although South Africa is the largest user of pesticides in sub-Saharan Africa, few studies have examined the toxicological threats posed by agricultural runoff, particularly to conservation areas of international importance. This study investigated the occurrence of 11 priority listed herbicides in sediments from Lake St Lucia, located on the east coast of South Africa. While characterised by exceptionally high levels of biodiversity, Lake St Lucia is affected by agricultural runoff primarily via inflow from two major rivers; the Mkhuze and Mfolozi. Sediment samples collected from Lake St Lucia and its two major fluvial inputs reveal widespread herbicide contamination of the aquatic environment. Residues were detected in the vast majority of samples analysed, with Mkhuze (27.3 ± 17 ng g-1) and Mfolozi (25.6 ± 20 ng g-1) sediments characterised by similar total herbicide levels, while lower concentrations were typically detected in Lake St Lucia (12.9 ± 12 ng g-1). Overall, the most prominent residues detected included acetochlor (3.77 ± 1.3 ng g-1), hexazinone (2.86 ± 1.4 ng g-1) and metolachlor (10.1 ± 8.7 ng g-1). Ecological assessment using Risk Quotients (RQs) showed that cumulative values for triazines and anilides/aniline herbicide classes presented low to medium risk for algae and aquatic invertebrate communities. Considering the biological importance of Lake St Lucia as a nursery for aquatic organisms, it is recommended that further research on the aquatic health of the system be undertaken. Additional monitoring and investigation into mitigation strategies is suggested, particularly as agricultural activities surrounding Lake St Lucia are likely to expand in the future.
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Affiliation(s)
- Raymond Lubem Tyohemba
- School of Chemistry, University of the Witwatersrand, Johannesburg, Private Bag 3, WITS, 2050, South Africa.
| | - Letitia Pillay
- School of Chemistry, University of the Witwatersrand, Johannesburg, Private Bag 3, WITS, 2050, South Africa
| | - Marc S Humphries
- School of Chemistry, University of the Witwatersrand, Johannesburg, Private Bag 3, WITS, 2050, South Africa
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Ballesteros ML, Boyle RL, Kellar CR, Miglioranza KSB, Bistoni MA, Pettigrove V, Long SM. What types of enzyme activities are useful biomarkers of bifenthrin exposure on Chironomus sp. (Diptera, Chironomidae) larvae under laboratory and field-based microcosm conditions? AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 228:105618. [PMID: 32937231 DOI: 10.1016/j.aquatox.2020.105618] [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: 05/27/2020] [Revised: 08/24/2020] [Accepted: 08/30/2020] [Indexed: 06/11/2023]
Abstract
Bifenthrin is a second generation synthetic pyrethroid insecticide that is widely used in Australia and worldwide. It is frequently found in urban freshwater sediments at concentrations likely to impact biota as it is highly toxic to fish and macroinvertebrates, such as chironomids. Our main goal was to evaluate if oxidative stress and hydrolase enzymes are useful biomarkers of effect of synthetic pyrethroids exposure under different scenarios. Chironomus tepperi larvae (5 days old) were exposed to sub-lethal sediment concentrations of bifenthrin for 5 days under controlled laboratory conditions. A field-based microcosm exposure with bifenthrin-spiked sediments (using the same concentrations as the laboratory exposure) was carried out at a clean field site for four weeks to allow for colonization and development of resident chironomid larvae. At the end of both experiments, Chironomus larvae (C. tepperi in the laboratory exposures and C. oppositus in the microcosm exposures) were collected and oxidative stress enzymes (Glutathione-s-Transferase, Glutathione Reductase and Glutathione Peroxidase) and hydrolase enzymes (Acetylcholinesterase and Carboxylesterase) were measured. Only the Glutathione Peroxidase activity was significantly impacted in larvae from the laboratory exposure. On the contrary, significant changes were observed in all the measured enzymes from the field-based microcosm exposure. This is likely because exposure was throughout the whole life cycle, from egg mass to fourth instar, showing a more realistic exposure scenario. Furthermore, this is the first time that changes in oxidative stress and hydrolase enzymes have been shown to occur in Australian non-biting midges exposed under field-based microcosm conditions. Thus, this study demonstrated the usefulness of these enzymes as biomarkers of effect following bifenthrin exposure in microcosms. It also highlights the importance of using a range of different biochemical endpoints to get a more holistic understanding of pesticide effects and the pathways involved.
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Affiliation(s)
- Maria L Ballesteros
- Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales, Cátedra de Diversidad Animal II, Córdoba, Argentina; CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas), Instituto de Diversidad y Ecología Animal (IDEA), Argentina; Centre for Aquatic Pollution Identification and Management (CAPIM), School of BioSciences, The University of Melbourne, Parkville, 3010 Vic, Australia
| | - Rhianna L Boyle
- Centre for Aquatic Pollution Identification and Management (CAPIM), School of BioSciences, The University of Melbourne, Parkville, 3010 Vic, Australia
| | - Claudette R Kellar
- Centre for Aquatic Pollution Identification and Management (CAPIM), School of BioSciences, The University of Melbourne, Parkville, 3010 Vic, Australia; Aquatic Environmental Stress Research Group (AQUEST), School of Science, RMIT University, PO Box 71, Bundoora, 3083 Vic, Australia
| | - Karina S B Miglioranza
- Universidad Nacional de Mar del Plata, Facultad de Ciencias Exactas y Naturales, Mar del Plata, Argentina; CONICET, Laboratorio de Ecotoxicología y Contaminación Ambiental, Instituto de Investigaciones Marinas y Costeras (IIMyC), Argentina
| | - Maria A Bistoni
- Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales, Cátedra de Diversidad Animal II, Córdoba, Argentina; CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas), Instituto de Diversidad y Ecología Animal (IDEA), Argentina
| | - Vincent Pettigrove
- Centre for Aquatic Pollution Identification and Management (CAPIM), School of BioSciences, The University of Melbourne, Parkville, 3010 Vic, Australia; Aquatic Environmental Stress Research Group (AQUEST), School of Science, RMIT University, PO Box 71, Bundoora, 3083 Vic, Australia
| | - Sara M Long
- Centre for Aquatic Pollution Identification and Management (CAPIM), School of BioSciences, The University of Melbourne, Parkville, 3010 Vic, Australia; Aquatic Environmental Stress Research Group (AQUEST), School of Science, RMIT University, PO Box 71, Bundoora, 3083 Vic, Australia.
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Logeshwaran P, Krishnan K, Naidu R, Megharaj M. Purification and characterization of a novel fenamiphos hydrolysing enzyme from Microbacterium esteraromaticum MM1. CHEMOSPHERE 2020; 252:126549. [PMID: 32229357 DOI: 10.1016/j.chemosphere.2020.126549] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 02/22/2020] [Accepted: 03/17/2020] [Indexed: 05/26/2023]
Abstract
Fenamiphos is a neurotoxic organophosphorus pesticide used widely to control pests of crops. Fenamiphos and its toxic oxidation products have been detected in surface and groundwaters. A novel enzyme capable of hydrolysing P-O-C bond of fenamiphos is purified from Microbacterium esteraromaticum MM1 total cellular protein using a combination of methods. The purified fenamiphos hydrolysing enzyme (FHE) was identified as enolase (phosphopyruvate hydratase), a housekeeping enzyme with molecular mass and pI value of 45 kDa and 4.5, respectively. The optimum pH and temperature for the activity of the FHE are 7 and 25 °C, respectively. We studied the influence of metal ions and inhibitors on the enzyme activity. The enzyme was strongly activated by Mg2+ whereas Hg2+ and phenylmethyl sulfonyl fluoride (PMSF) inhibited the enzyme. The kinetic parameters, Km and Vmax for fenamiphos hydrolysis were estimated to be 584.15 ± 16.22 μM and 6.46 ± 0.13 μM min-1, respectively. The FHE was functionally active against its original substrate (2-phosphoglycerate) with Km value of 5.82 ± 1.42 μM and Vmax of 4.2 ± 0.1 μM min-1. This enzyme has great potential for its application in the detoxification of fenamiphos and its warfare homologs. To our knowledge, this is the first report on the purification of fenamiphos hydrolysing enzyme.
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Affiliation(s)
- Panneerselvan Logeshwaran
- 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 (CRCCARE), ATC Building, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Kannan Krishnan
- 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 (CRCCARE), ATC Building, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Ravi Naidu
- 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 (CRCCARE), ATC Building, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - 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 (CRCCARE), ATC Building, University of Newcastle, Callaghan, NSW, 2308, Australia.
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Blahova J, Dobsikova R, Enevova V, Modra H, Plhalova L, Hostovsky M, Marsalek P, Mares J, Skoric M, Vecerek V, Svobodova Z. Comprehensive fitness evaluation of common carp (Cyprinus carpio L.) after twelve weeks of atrazine exposure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 718:135059. [PMID: 31839289 DOI: 10.1016/j.scitotenv.2019.135059] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 10/17/2019] [Accepted: 10/17/2019] [Indexed: 06/10/2023]
Abstract
Atrazine is frequently detected in surface waters and negatively affect physiological function in aquatic organisms. Even though numerous authors have intensively studied its toxicity, only limited information concerning the long-term fish exposure is available. The aim of this study was evaluation of chronic exposure in common carp. Fish were exposed to a range of atrazine concentrations (0.3 - environmentally relevant concentration; 300; 1000; and 3000 µg/l) for twelve weeks. The potential impact of atrazine exposure was studied using various markers (behaviour; biometrical characteristics; haematological, biochemical and oxidative stress indices and histopathological changes). Most alterations were recorded at the highest concentration (3000 µg/l) which is probably due to a combined effect of both the herbicide exposure and intensive parasite infection development during second week. This group was cancelled after three weeks due to adverse health status, which partly confirmed atrazine immunotoxicity. Chronic exposure resulted in long-term reduction in feed intake followed by a significant decrease in body weight and morphological changes in gill at 1000 µg/l. At the same concentration, significant alterations in haematological (e.g. increase in erythrocyte, leukocyte, lymphocytes and neutrophil counts as well as decrease in monocyte counts) and biochemical (e.g. changes in enzyme activities; increase in glucose; decrease in ammonia) indices were documented, especially during first three weeks. Similar trend, but not so intensive, was observed at 300 µg/l. Moreover, significant changes were observed in various indicators of oxidative stress. These alterations were highly variable with both increasing and decreasing trends depending on dose and analysed tissue. Significant changes, especially in white blood profile, enzyme activities and oxidative stress indices, were proven even at 0.3 µg/l. Obtained results indicate that chronic atrazine exposure of common carp can negatively influence many indicators of health status such as behaviour, immune response, haematological and biochemical profile, oxidative stress indices and organ histopathology.
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Affiliation(s)
- Jana Blahova
- Department of Animal Protection, Welfare and Behaviour, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic.
| | - Radka Dobsikova
- Department of Animal Protection, Welfare and Behaviour, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic
| | - Vladimira Enevova
- Department of Animal Protection, Welfare and Behaviour, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic
| | - Helena Modra
- Department of Zoology, Fisheries, Hydrobiology and Apiculture, Faculty of AgriScience, Mendel University in Brno, Czech Republic
| | - Lucie Plhalova
- Department of Animal Protection, Welfare and Behaviour, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic
| | - Martin Hostovsky
- Department of Animal Protection, Welfare and Behaviour, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic
| | - Petr Marsalek
- Department of Animal Protection, Welfare and Behaviour, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic
| | - Jan Mares
- Department of Zoology, Fisheries, Hydrobiology and Apiculture, Faculty of AgriScience, Mendel University in Brno, Czech Republic
| | - Misa Skoric
- Department of Pathological Morphology and Parasitology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic
| | - Vladimir Vecerek
- Department of Animal Protection, Welfare and Behaviour, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic
| | - Zdenka Svobodova
- Department of Animal Protection, Welfare and Behaviour, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic
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Chapman J, Truong VK, Elbourne A, Gangadoo S, Cheeseman S, Rajapaksha P, Latham K, Crawford RJ, Cozzolino D. Combining Chemometrics and Sensors: Toward New Applications in Monitoring and Environmental Analysis. Chem Rev 2020; 120:6048-6069. [PMID: 32364371 DOI: 10.1021/acs.chemrev.9b00616] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
For many years, an extensive array of chemometric methods have provided a platform upon which a quantitative description of environmental conditions can be obtained. Applying chemometric methods to environmental data allows us to identify and describe the interrelations between certain environmental drivers. They also provide an insight into the interrelationships between these drivers and afford us a greater understanding of the potential impact that these drivers can place upon the environment. However, an effective marriage of these two systems has not been performed. Therefore, it is the aim of this review to highlight the advantages of using chemometrics and sensors to identify hidden trends in environmental parameters, which allow the state of the environment to be effectively monitored. Despite the combination of chemometrics and sensors, to capture new developments and applications in the field of environmental sciences, these methods have not been extensively used. Importantly, although different parameters and monitoring procedures are required for different environments (e.g., air, water, soil), they are not distinct, separate entities. Contemporary developments in the use of chemometrics afford us the ability to predict changes in different aspects of the environment using instrumental methods. This review also provides an insight into the prevailing trends and the future of environmental sensing, highlighting that chemometrics can be used to enhance our ability to monitor the environment. This enhanced ability to monitor environmental conditions and to predict trends would be beneficial to government and research agencies in their ability to develop environmental policies and analysis procedures.
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Affiliation(s)
- James Chapman
- School of Science, RMIT University, Melbourne 3001, Australia
| | - Vi Khanh Truong
- School of Science, RMIT University, Melbourne 3001, Australia
| | - Aaron Elbourne
- School of Science, RMIT University, Melbourne 3001, Australia
| | | | | | | | - Kay Latham
- School of Science, RMIT University, Melbourne 3001, Australia
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Wu Y, Xu Z, Xu X, Fan L, Jiang X. Exposure to Metalaxyl Disturbs the Skeletal Development of Zebrafish Embryos. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 104:432-437. [PMID: 32072197 DOI: 10.1007/s00128-020-02806-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 02/11/2020] [Indexed: 06/10/2023]
Abstract
Metalaxyl is broadly applied in agriculture to control peronosporales-caused diseases in plant. To investigate the toxic effects, zebrafish embryos were exposed to metalaxyl at 5, 50 and 500 ng/L for 72 h, the development of larvae were assessed. A significant decreased survival rate, body length, hatching rate (48 h post-fertilization), and a significant increased spinal curvature rate were observed in the 500 ng/L treatment. The lengths of lower jaw, upper jaw and hyomandibular were significantly decreased in the 5, 50 and 500 ng/L groups; while the lower jaw width was significantly increased in the 500 ng/L group. The lengths of palatoquadrate, ceratohyal and ethmoid plate were reduced. Though cyp26a1 mRNA levels showed no significant change, the transcription of bmp2b (in the 500 ng/L group), ihh (in the 50 and 500 ng/L groups), shh (in the 5, 50 and 500 ng/L groups) were significantly up-regulated, which may be related to the abnormal development of the skeleton.
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Affiliation(s)
- Yuqiong Wu
- College of Tea and Food Science, Wuyi University, Wuyishan, 354300, Fujian, China.
| | - Zhenyi Xu
- College of Tea and Food Science, Wuyi University, Wuyishan, 354300, Fujian, China
| | - Xiaobin Xu
- College of Tea and Food Science, Wuyi University, Wuyishan, 354300, Fujian, China
| | - Li Fan
- College of Tea and Food Science, Wuyi University, Wuyishan, 354300, Fujian, China
| | - Xianbiao Jiang
- College of Tea and Food Science, Wuyi University, Wuyishan, 354300, Fujian, China
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Paijens C, Bressy A, Frère B, Moilleron R. Biocide emissions from building materials during wet weather: identification of substances, mechanism of release and transfer to the aquatic environment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:3768-3791. [PMID: 31656996 DOI: 10.1007/s11356-019-06608-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 09/24/2019] [Indexed: 05/14/2023]
Abstract
Biocides are added to or applied on building materials to prevent microorganisms from growing on their surface or to treat them. They are leached into building runoff and contribute to diffuse contamination of receiving waters. This review aimed at summarizing the current state of knowledge concerning the impact of biocides from buildings on the aquatic environment. The objectives were (i) to assess the key parameters influencing the leaching of biocides and to quantify their emission from buildings, (ii) to determine the different pathways from urban sources into receiving waters and (iii) to assess the associated environmental risk. Based on consumption data and leaching studies, a list of substances to monitor in receiving water was established. Literature review of their concentrations in the urban water cycle showed evidences of contamination and risk for aquatic life, which should put them into consideration for inclusion to European or international monitoring programs. However, some biocide concentration data in urban and receiving waters is still missing to fully assess their environmental risk, especially for isothiazolinones, iodopropynyl carbamate, zinc pyrithione and quaternary ammonium compounds, and little is known about their transformation products. Although some models supported by actual data were developed to extrapolate emissions on larger scales (watershed or city scales), they are not sufficient to prioritize the pathways of biocides from urban sources into receiving waters during both dry and wet weathers. Our review highlights the need to reduce emissions and limit their transfer into rivers and reports several solutions to address these issues.
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Affiliation(s)
- Claudia Paijens
- Leesu, UMR-MA-102, Ecole des Ponts ParisTech, Université Paris-Est Créteil, AgroParisTech, 6 et 8 avenue Blaise Pascal - Cité Descartes, 77455, Champs-sur-Marne Cedex 2, France
- Laboratoire Central de la Préfecture de Police, 39 bis rue de Dantzig, 75015, Paris, France
| | - Adèle Bressy
- Leesu, UMR-MA-102, Ecole des Ponts ParisTech, Université Paris-Est Créteil, AgroParisTech, 6 et 8 avenue Blaise Pascal - Cité Descartes, 77455, Champs-sur-Marne Cedex 2, France.
| | - Bertrand Frère
- Laboratoire Central de la Préfecture de Police, 39 bis rue de Dantzig, 75015, Paris, France
| | - Régis Moilleron
- Leesu, UMR-MA-102, Université Paris-Est Créteil, Ecole des Ponts ParisTech, AgroParisTech, 61 avenue du Général de Gaulle, 94010, Créteil Cedex, France
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Jijie R, Solcan G, Nicoara M, Micu D, Strungaru SA. Antagonistic effects in zebrafish (Danio rerio) behavior and oxidative stress induced by toxic metals and deltamethrin acute exposure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 698:134299. [PMID: 31505357 DOI: 10.1016/j.scitotenv.2019.134299] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/30/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
In natural environments, the aquatic organisms are exposed to complex mixtures of chemicals which may originate from natural sources or from anthropogenic activities. In this context, the aim of the study was to assess the potential effects that might occur when aquatic organisms are simultaneously exposed to multiple chemicals. For that, we have studied the acute effects of cadmium (0.2 μg L-1), nickel (10 μg L-1) and deltamethrin (2 μg L-1) as individual toxicants and as mixture on the behavioral responses, oxidative stress (SOD and GPx), body electrolytes and trace metals profiles of zebrafish (Danio rerio). So far the scientific literature did not report about the combined effects of pesticides and toxic metals on zebrafish behavior using a 3D tracking system. Compared with other studies, in the present paper we investigated the acute effects of two heavy metals associated with a pesticide on zebrafish, in the range of environmentally relevant concentrations. Thus, the environmental concentrations of cadmium and nickel in three rivers affected by urban activities and one river with protected areas as background control were measured. The observations that resulted in our study demonstrated that deltamethrin toxicity was significantly decreased in some of the behavioral variables and oxidative stress when combined with CdNi mixture. Consequently, our study supports previous works concerning the combined toxicity of environmental chemicals since their simultaneous presence in the aqueous environment may lead to higher or lower toxicological effects on biota than those reported from a single pollutant. Therefore, the evaluation of toxic effects of a single contaminant does not offer a realistic estimate of its impact against aqueous ecosystems. This study also supports the idea that the interactions between different chemical compounds which do not exceed the maximum permitted limits in environment may have benefits for aquatic life forms or be more toxic.
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Affiliation(s)
- Roxana Jijie
- Alexandru Ioan Cuza University of Iasi, Department of Research, Faculty of Biology, Bd. Carol I, 20A, 700505 Iasi, Romania
| | - Gheorghe Solcan
- University of Agricultural Science and Veterinary Medicine "Ion Ionescu de la Brad", Department of Molecular Biology, Histology and Embriology, Faculty of Veterinary Medicine, 8, Mihail Sadoveanu Alley, 700489 Iasi, Romania
| | - Mircea Nicoara
- Alexandru Ioan Cuza University of Iași, Doctoral School of Geosciences, Faculty of Geography-Geology, B-dul Carol I, 700505 Iasi, Romania; Alexandru Ioan Cuza University of Iasi, Department of Biology, Faculty of Biology, Bd. Carol I, 20A, 700505 Iasi, Romania.
| | - Dragos Micu
- Romanian Waters National Authority, Dobrogea - Black Sea Basin Administration, Mircea cel Batran Blvd. 127, RO-900592 Constanta, Romania
| | - Stefan-Adrian Strungaru
- Alexandru Ioan Cuza University of Iasi, Department of Research, Faculty of Biology, Bd. Carol I, 20A, 700505 Iasi, Romania; Alexandru Ioan Cuza University of Iași, Doctoral School of Geosciences, Faculty of Geography-Geology, B-dul Carol I, 700505 Iasi, Romania.
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Okada E, Allinson M, Barral MP, Clarke B, Allinson G. Glyphosate and aminomethylphosphonic acid (AMPA) are commonly found in urban streams and wetlands of Melbourne, Australia. WATER RESEARCH 2020; 168:115139. [PMID: 31605832 DOI: 10.1016/j.watres.2019.115139] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 09/13/2019] [Accepted: 09/27/2019] [Indexed: 05/27/2023]
Abstract
Glyphosate is the most widely-used pesticide for weed control in agriculture and in urban and residential areas. This is the first study to quantify glyphosate and AMPA levels in surface water in Australia from different land uses. Glyphosate and AMPA was measured in surface water from 10 rural streams, 30 urban stormwater wetlands and 9 urban streams located in and around the city of Melbourne, Australia on five occasions between October 2017 and February 2018. Glyphosate and AMPA were present in most of the urban surface water samples. The frequency of detection of glyphosate was 77% in wetlands and 79% in urban streams, whereas it was only detected in 4% of the rural streams. Similarly, AMPA detection was 91% in wetlands and 97% in urban streams, whereas it was only present in 6% of the rural stream samples. In both urban streams and wetlands, the highest average glyphosate concentrations occurred in November (1.8 ± 2.2 μg L-1). Overall, wetlands and streams associated with urban land use are vulnerable to glyphosate contamination. These results highlight the importance of screening for contaminants in urban stormwater to identify the source of pollutants that may end up in aquatic ecosystems and the risks therefrom.
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Affiliation(s)
- Elena Okada
- Centre for Environmental Sustainability and Remediation, School of Science, RMIT University, GPO Box 2476, Melbourne, Victoria, 3001, Australia; INTA Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce, Route 226 Km 73.5, 7620, Balcarce, Argentina.
| | - Mayumi Allinson
- Department of Chemical Engineering, The University of Melbourne, Victoria, 3010, Australia
| | - María P Barral
- INTA Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce, Route 226 Km 73.5, 7620, Balcarce, Argentina
| | - Bradley Clarke
- School of Chemistry, The University of Melbourne, Victoria, 3010, Australia
| | - Graeme Allinson
- Centre for Environmental Sustainability and Remediation, School of Science, RMIT University, GPO Box 2476, Melbourne, Victoria, 3001, Australia
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Sardiña P, Leahy P, Metzeling L, Stevenson G, Hinwood A. Emerging and legacy contaminants across land-use gradients and the risk to aquatic ecosystems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 695:133842. [PMID: 31426001 DOI: 10.1016/j.scitotenv.2019.133842] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/07/2019] [Accepted: 08/07/2019] [Indexed: 05/22/2023]
Abstract
Information on potentially harmful emerging and legacy chemicals is essential to understand the risks to the environment and inform regulatory actions. The objective of this study was to assess the occurrence, concentration, and distribution of emerging and legacy contaminants across a gradient of land-use intensity and determine the risk posed to aquatic ecosystems. The land-use intensity gradient considered was: background/undeveloped < low-intensity agriculture < high-intensity agriculture < urban residential < urban industrial. Twenty-five sites were sampled for surface water, sediment, and soil. A total of 218 chemicals were analyzed: pesticides, per- and poly-fluoroalkyl substances (PFAS), polybrominated biphenyls and polybrominated diphenyl ethers (PBDEs), phthalates, and short-chain chlorinated paraffins (SCCPs). The risk posed by the analyzed chemicals to the aquatic environment was measured using hazard quotients (HQs), which were calculated by dividing the maximum measured environmental concentration by a predicted no-effect concentration for each chemical. A HQ > 1 was considered to indicate a high risk of adverse effects from the given chemical. A total of 68 chemicals were detected: 19 pesticides, 18 PFAS, 28 PBDEs, two phthalates, and SCCPs (as total SCCPs). There were no significant differences in the overall chemical composition between land uses. However, the insecticide bifenthrin, PFAS, PBDEs, and phthalates were more frequently found in samples from residential and/or industrial sites, suggesting urban land uses are hotspots and potential large-scale sources of these chemicals. Nineteen chemicals had a HQ > 1; most had a restricted spatial distribution limited to high-intensity agriculture and industrial sites in Melbourne. Bifenthrin and the perfluorooctanesulfonic acid (PFOS) had the highest HQs in residential and industrial sites, suggesting an increased risk to aquatic ecosystems in urban settings. The results of this study will enhance future research, predictive methods, and effective targeting of monitoring, and will help guide regulatory management actions and mitigation solutions.
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Affiliation(s)
- Paula Sardiña
- Environment Protection Authority Victoria, Ernest Jones Drive, Macleod, Victoria 3085, Australia.
| | - Paul Leahy
- Environment Protection Authority Victoria, Ernest Jones Drive, Macleod, Victoria 3085, Australia.
| | - Leon Metzeling
- Environment Protection Authority Victoria, Ernest Jones Drive, Macleod, Victoria 3085, Australia.
| | - Gavin Stevenson
- National Measurement Institute, 105 Delhi Road, North Ryde, NSW 2113, Australia.
| | - Andrea Hinwood
- Environment Protection Authority Victoria, Ernest Jones Drive, Macleod, Victoria 3085, Australia.
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Stehle S, Bline A, Bub S, Petschick LL, Wolfram J, Schulz R. Aquatic pesticide exposure in the U.S. as a result of non-agricultural uses. ENVIRONMENT INTERNATIONAL 2019; 133:105234. [PMID: 31654914 DOI: 10.1016/j.envint.2019.105234] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 09/27/2019] [Accepted: 09/30/2019] [Indexed: 06/10/2023]
Abstract
Non-agricultural uses of pesticides are common in the U.S. and may thus lead to exposure of non-target ecosystems such as urban waterways. However, surface water exposure resulting from agricultural pesticide uses has received substantially more attention during the last decades. Here we conducted a literature review and meta-analysis of peer-reviewed studies to identify measured environmental concentrations (MEC) of pesticides in perennial surface water bodies due to non-agricultural uses in the U.S. Acute and chronic Aquatic Life Benchmarks (ALBacute, ALBchronic) for water-phase concentrations and regulatory threshold levels (RTLSED) for sediment concentrations were used for risk evaluations. Based on 10,755 MECs retrieved from 70 scientific studies, results show that a multitude of pesticide compounds (approx. 150) have been detected at 609 urban surface water sites. Particularly herbicides and insecticides were among the most frequently detected compounds in the water phase, whereas insecticides dominated detections in sediments. While overall acute (5.64% ALBacute exceedances; n = 9034 MEC) and chronic (9.31% ALBchronic exceedances; n = 9036 MEC) risks were comparably low in the water phase, 35% of sediment concentrations (n = 1621 MEC) exceeded RTLSED. Insecticides and particularly pyrethroids were identified as the main drivers of benchmark exceedances in both the water phase and sediments. In addition to pesticide type, a linear model analysis identified further drivers important for risks such as sampling methods. Overall insecticide risks in non-agricultural surface waters were significantly (by a factor of 1.9) lower than those already known from agricultural surface waters in the U.S. However, substantially higher risks in sediments were identified for urban compared with agricultural waterbodies. The present study provides the first comprehensive assessment of pesticides in urban surface waters in the U.S. with overall results indicating common occurrence and non-negligible risks particularly due to urban insecticide uses.
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Affiliation(s)
- Sebastian Stehle
- iES Landau, Institute for Environmental Sciences, University of Koblenz-Landau, Fortstrasse 7, D-76829 Landau, Germany; Eusserthal Ecosystem Research Station, University of Koblenz-Landau, Birkenthalstrasse 13, 76857 Eusserthal, Germany.
| | - Abigail Bline
- Fielding School of Public Health, University of California Los Angeles, 650 Charles E. Young Drive South, Los Angeles, CA 90095, USA
| | - Sascha Bub
- iES Landau, Institute for Environmental Sciences, University of Koblenz-Landau, Fortstrasse 7, D-76829 Landau, Germany
| | - Lara Luisa Petschick
- iES Landau, Institute for Environmental Sciences, University of Koblenz-Landau, Fortstrasse 7, D-76829 Landau, Germany
| | - Jakob Wolfram
- iES Landau, Institute for Environmental Sciences, University of Koblenz-Landau, Fortstrasse 7, D-76829 Landau, Germany
| | - Ralf Schulz
- iES Landau, Institute for Environmental Sciences, University of Koblenz-Landau, Fortstrasse 7, D-76829 Landau, Germany
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Wu Y, Zhang Y, Chen M, Yang Q, Zhuang S, Lv L, Zuo Z, Wang C. Exposure to low-level metalaxyl impacts the cardiac development and function of zebrafish embryos. J Environ Sci (China) 2019; 85:1-8. [PMID: 31471016 DOI: 10.1016/j.jes.2019.03.019] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 03/21/2019] [Accepted: 03/21/2019] [Indexed: 06/10/2023]
Abstract
Metalaxyl is an anilide pesticide that is widely used to control plant diseases caused by Peronosporales species. In order to study the toxic effects, zebrafish embryos were exposed to metalaxyl at nominal concentrations of 5, 50 and 500 ng/L for 72 hr, and the cardiac development and functioning of larvae were observed. The results showed that metalaxyl exposure resulted in increased rates of pericardial edema, heart hemorrhage and cardiac malformation. The distance between the sinus venosus and bulbus arteriosus, stroke volume, cardiac output and heart rate were significantly increased in larvae exposed to 50 and 500 ng/L metalaxyl compared to solvent control larvae. Significant upregulation in the transcription of tbx5, gata4 and myh6 was observed in the 50 and 500 ng/L treatments, and that of nkx2.5 and myl7 was observed in the 5, 50 and 500 ng/L groups. These disturbances may be related to cardiac developmental and functional defects in the larvae. The activity of Na+/K+-ATPase and Ca2+-ATPase was significantly increased in zebrafish embryos exposed to 500 ng/L metalaxyl, and the mRNA levels of genes related to ATPase (atp2a11, atp1b2b, and atp1a3b) (in the 50 and 500 ng/L groups) and calcium channels (cacna1ab) (in the 500 ng/L group) were significantly downregulated; these changes might be associated with heart arrhythmia and functional failure.
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Affiliation(s)
- Yuqiong Wu
- Wuyi University, College of Tea and Food Science, Wuyishan 354300, China.
| | - Ying Zhang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361005, China.
| | - Meng Chen
- Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, Xiamen University, Xiamen 361005, China
| | - Qihong Yang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361005, China
| | - Shanshan Zhuang
- Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, Xiamen University, Xiamen 361005, China
| | - Liangju Lv
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361005, China
| | - Zhenghong Zuo
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361005, China
| | - Chonggang Wang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361005, China.
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Sharma A, Kumar V, Shahzad B, Tanveer M, Sidhu GPS, Handa N, Kohli SK, Yadav P, Bali AS, Parihar RD, Dar OI, Singh K, Jasrotia S, Bakshi P, Ramakrishnan M, Kumar S, Bhardwaj R, Thukral AK. Worldwide pesticide usage and its impacts on ecosystem. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-1485-1] [Citation(s) in RCA: 370] [Impact Index Per Article: 74.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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50
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Rojas-Hucks S, Gutleb AC, González CM, Contal S, Mehennaoui K, Jacobs A, Witters HE, Pulgar J. Xenopus laevis as a Bioindicator of Endocrine Disruptors in the Region of Central Chile. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2019; 77:390-408. [PMID: 31422435 DOI: 10.1007/s00244-019-00661-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Accepted: 08/06/2019] [Indexed: 06/10/2023]
Abstract
One of the direct causes of biodiversity loss is environmental pollution resulting from the use of chemicals. Different kinds of chemicals, such as persistent organic pollutants and some heavy metals, can be endocrine disruptors, which act at low doses over a long period of time and have a negative effect on the reproductive and thyroid system in vertebrates worldwide. Research on the effects of endocrine disruptors and the use of bioindicators in neotropical ecosystems where pressure on biodiversity is high is scarce. In Chile, although endocrine disruptors have been detected at different concentrations in the environments of some ecosystems, few studies have been performed on their biological effects in the field. In this work, Xenopus laevis (African clawed frog), an introduced species, is used as a bioindicator for the presence of endocrine disruptors in aquatic systems with different degrees of contamination in a Mediterranean zone in central Chile. For the first time for Chile, alterations are described that can be linked to exposure to endocrine disruptors, such as vitellogenin induction, decreased testosterone in male frogs, and histological changes in gonads. Dioxin-like and oestrogenic activity was detected in sediments at locations where it seem to be related to alterations found in the frogs. In addition, an analysis of land use/cover use revealed that urban soil was the best model to explain the variations in frog health indicators. This study points to the usefulness of an invasive species as a bioindicator for the presence of endocrine-disruptive chemicals.
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Affiliation(s)
- Sylvia Rojas-Hucks
- Departamento de Ecología y Biodiversidad, Facultad Ciencias de la Vida, Universidad Andres Bello, República 440, Santiago, Chile.
| | - Arno C Gutleb
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST), 5 avenue des Hauts-Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Carlos M González
- Escuela de Medicina Veterinaria, Facultad Ciencias de la Vida, Universidad Andres Bello, República 440, Santiago, Chile
| | - Servane Contal
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST), 5 avenue des Hauts-Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Kahina Mehennaoui
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST), 5 avenue des Hauts-Fourneaux, Esch-sur-Alzette, Luxembourg
| | - An Jacobs
- Department Environmental Health and Risk, Team Applied Bio and Molecular Sciences (ABS), Flemish Institute for Technological Research (VITO), Boeretang 200, 2400, Mol, Belgium
| | - Hilda E Witters
- Department Environmental Health and Risk, Team Applied Bio and Molecular Sciences (ABS), Flemish Institute for Technological Research (VITO), Boeretang 200, 2400, Mol, Belgium
| | - José Pulgar
- Departamento de Ecología y Biodiversidad, Facultad Ciencias de la Vida, Universidad Andres Bello, República 440, Santiago, Chile
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