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Ambaye TG, Hassani A, Vaccari M, Franzetti A, Prasad S, Formicola F, Rosatelli A, Rehman MZU, Mohanakrishna G, Ganachari SV, Aminabhavi TM, Rtimi S. Emerging technologies for the removal of pesticides from contaminated soils and their reuse in agriculture. CHEMOSPHERE 2024; 362:142433. [PMID: 38815812 DOI: 10.1016/j.chemosphere.2024.142433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 06/01/2024]
Abstract
Pesticides are becoming more prevalent in agriculture to protect crops and increase crop yields. However, nearly all pesticides used for this purpose reach non-target crops and remain as residues for extended periods. Contamination of soil by widespread pesticide use, as well as its toxicity to humans and other living organisms, is a global concern. This has prompted us to find solutions and develop alternative remediation technologies for sustainable management. This article reviews recent technological developments for remediating pesticides from contaminated soil, focusing on the following major points: (1) The application of various pesticide types and their properties, the sources of pesticides related to soil pollution, their transport and distribution, their fate, the impact on soil and human health, and the extrinsic and intrinsic factors that affect the remediation process are the main points of focus. (2) Sustainable pesticide degradation mechanisms and various emerging nano- and bioelectrochemical soil remediation technologies. (3) The feasible and long-term sustainable research and development approaches that are required for on-site pesticide removal from soils, as well as prospects for applying them directly in agricultural fields. In this critical analysis, we found that bioremediation technology has the potential for up to 90% pesticide removal from the soil. The complete removal of pesticides through a single biological treatment approach is still a challenging task; however, the combination of electrochemical oxidation and bioelectrochemical system approaches can achieve the complete removal of pesticides from soil. Further research is required to remove pesticides directly from soils in agricultural fields on a large-scale.
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Affiliation(s)
- Teklit Gebregiorgis Ambaye
- Department of Civil, Environmental, Architectural Engineering and Mathematics, University of Brescia, Via Branze 43, Brescia, 25123, Italy; Department of Environment and Resource Engineering, Technical University of Denmark, 2800, Lyngby, Denmark
| | - Aydin Hassani
- Department of Materials Science and Nanotechnology Engineering, Faculty of Engineering, Near East University, 99138 Nicosia, TRNC, Mersin 10, Turkey; Research Center for Science, Technology and Engineering (BILTEM), Near East University, 99138 Nicosia, TRNC, Mersin 10, Turkey
| | - Mentore Vaccari
- Department of Civil, Environmental, Architectural Engineering and Mathematics, University of Brescia, Via Branze 43, Brescia, 25123, Italy
| | - Andrea Franzetti
- Department of Earth and Environmental Sciences-DISAT, University of Milano-Bicocca, Piazza Della Scienza 1 Milano, 20126, Italy
| | - Shiv Prasad
- Division of Environment Science, ICAR-Indian Agricultural Research Institute New Delhi, 110012, India
| | - Francesca Formicola
- Department of Earth and Environmental Sciences-DISAT, University of Milano-Bicocca, Piazza Della Scienza 1 Milano, 20126, Italy
| | - Asia Rosatelli
- Department of Earth and Environmental Sciences-DISAT, University of Milano-Bicocca, Piazza Della Scienza 1 Milano, 20126, Italy
| | - Muhammad Zia Ur Rehman
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, 38040, Pakistan
| | - Gunda Mohanakrishna
- Center for Energy and Environment (CEE), School of Advanced Sciences, KLE Technological University, Hubballi, 580 031, India
| | - Sharanabasava V Ganachari
- Center for Energy and Environment (CEE), School of Advanced Sciences, KLE Technological University, Hubballi, 580 031, India
| | - Tejraj M Aminabhavi
- Center for Energy and Environment (CEE), School of Advanced Sciences, KLE Technological University, Hubballi, 580 031, India.
| | - Sami Rtimi
- Global Institute for Water Environment and Health, 1210 Geneva, Switzerland.
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Brander SM, White JW, DeCourten BM, Major K, Hutton SJ, Connon RE, Mehinto A. Accounting for transgenerational effects of toxicant exposure in population models alters the predicted long-term population status. ENVIRONMENTAL EPIGENETICS 2022; 8:dvac023. [PMID: 36518876 PMCID: PMC9730329 DOI: 10.1093/eep/dvac023] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 08/12/2022] [Accepted: 11/01/2022] [Indexed: 06/04/2023]
Abstract
Acute environmental stressors such as short-term exposure to pollutants can have lasting effects on organisms, potentially impacting future generations. Parental exposure to toxicants can result in changes to the epigenome (e.g., DNA methylation) that are passed down to subsequent, unexposed generations. However, it is difficult to gauge the cumulative population-scale impacts of epigenetic effects from laboratory experiments alone. Here, we developed a size- and age-structured delay-coordinate population model to evaluate the long-term consequences of epigenetic modifications on population sustainability. The model emulated changes in growth, mortality, and fecundity in the F0, F1, and F2 generations observed in experiments in which larval Menidia beryllina were exposed to environmentally relevant concentrations of bifenthrin (Bif), ethinylestradiol (EE2), levonorgestrel (LV), or trenbolone (TB) in the parent generation (F0) and reared in clean water up to the F2 generation. Our analysis suggests potentially dramatic population-level effects of repeated, chronic exposures of early-life stage fish that are not captured by models not accounting for those effects. Simulated exposures led to substantial declines in population abundance (LV and Bif) or near-extinction (EE2 and TB) with the exact trajectory and timeline of population decline dependent on the combination of F0, F1, and F2 effects produced by each compound. Even acute one-time exposures of each compound led to declines and recovery over multiple years due to lagged epigenetic effects. These results demonstrate the potential for environmentally relevant concentrations of commonly used compounds to impact the population dynamics and sustainability of an ecologically relevant species and model organism.
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Affiliation(s)
- Susanne M Brander
- *Correspondence address. Department of Fisheries, Wildlife, and Conservation Sciences, Coastal Oregon Marine Experiment Station, Oregon State University, 2030 SE Marine Science Drive, Newport, OR 97365, USA. Tel: +541-737-5413; E-mail:
| | - J Wilson White
- Department of Fisheries, Wildlife, and Conservation Sciences, Coastal Oregon Marine Experiment Station, Oregon State University, Newport, OR 97365, USA
| | | | - Kaley Major
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, USA
| | - Sara J Hutton
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, USA
| | - Richard E Connon
- Department of Anatomy, Physiology and Cell Biology, School of Veterinary Medicine, University of California, Davis, CA 95656, USA
| | - Alvine Mehinto
- Toxicology Department, Southern California Coastal Water Research Project, Costa Mesa, CA 92626, USA
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Rahman ANA, Mohamed AAR, Dahran N, Farag MFM, Alqahtani LS, Nassan MA, AlThobaiti SA, El-Naseery NI. Appraisal of sub-chronic exposure to lambada-cyhalothrin and/or methomyl on the behavior and hepato-renal functioning in Oreochromis niloticus: Supportive role of taurine-supplemented feed. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2022; 250:106257. [PMID: 35933907 DOI: 10.1016/j.aquatox.2022.106257] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 05/31/2022] [Accepted: 07/27/2022] [Indexed: 06/15/2023]
Abstract
The existing study was designed to inspect the toxicological consequences of two pesticides; lambda-cyhalothrin (LCT) and methomyl (MTM) and their combination on Nile tilapia (Oreochromis niloticus) behaviors, oxidative stress, hepato-renal function indices and microarchitectural alterations. In addition, the efficiency of taurine (TUR) to rescue their toxicity was also considered. Juvenile O. niloticus were assigned into eight groups. The control and TUR groups were fed on a basal diet and TUR-enriched (10 g kg1) diet, respectively. The other groups were fed on a basal diet, and exposed to LCT (0.079 µg L-1), MTM (20.39 µg L-1 and (LCT + MTM). The last three groups were (LCT + TUR), (MTM + TUR), and (LCT + MTM + TUR) and fed on a TUR-enriched diet during exposure to LCT and/or MTM for 60 days. The exposure to LCT and/or MTM resulted in several behavioral alterations and stress via enhanced cortisol and nor-epinephrine levels. A significant elevation of serum 8-hydroxy-2- deoxyguanosine, aspartate and alanine aminotransferases, lactate dehydrogenase, Alkaline phosphatase, urea, creatinine was also observed in these groups. Furthermore, reduced antioxidant enzymes activities, including (catlase, glutathione peroxidase, and superoxide dismutase) with marked histopathological lesions in both liver and kidney tissues were detected. The up-regulated Bax and down-regulated Bcl-2 proteins were expressed in the liver and kidney tissues of LCT and/or MTM -exposed groups. Interestingly, all the observed alterations in behaviors, biochemical indices, and histo-architecture of renal and hepatic tissues were mitigated by TUR supplementation. The findings suggest that feeding O. niloticus dietary TUR may help to reduce the negative effects of LCT and/or MTM, and can also support kidney and liver health in O. niloticus, making it a promising aquaculture feed supplement.
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Affiliation(s)
- Afaf N Abdel Rahman
- Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Zagazig University, P.O. Box 44511, Sharkia, Zagazig, Egypt.
| | - Amany Abdel-Rahman Mohamed
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, P.O. Box 44511, Zagazig, Egypt.
| | - Naief Dahran
- Department of Anatomy, Faculty of Medicine, University of Jeddah, Jeddah, Saudi Arabia
| | - Mohamed F M Farag
- Department of Clinical Pathology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Leena S Alqahtani
- Department of Biochemistry, College of Science, University of Jeddah, Jeddah 23445, Saudi Arabia
| | - Mohamed A Nassan
- Department of Clinical Laboratory Sciences, Turabah University College, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Saed Ayidh AlThobaiti
- Biology Department, Turabah University College, Taif University, Taif 21995, Saudi Arabia
| | - Nesma I El-Naseery
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Zagazig University, P.O. Box 44511, Zagazig, Egypt
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Derby AP, Huff Hartz KE, Fuller NW, Landrum PF, Reeve JD, Poynton HC, Connon RE, Lydy MJ. Effects of temperature and salinity on bioconcentration and toxicokinetics of permethrin in pyrethroid-resistant Hyalella azteca. CHEMOSPHERE 2022; 299:134393. [PMID: 35337826 DOI: 10.1016/j.chemosphere.2022.134393] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/24/2022] [Accepted: 03/19/2022] [Indexed: 06/14/2023]
Abstract
Recent studies demonstrated pyrethroid resistance associated with voltage-gated sodium channel mutations in populations of the epibenthic amphipod, Hyalella azteca. Resistant populations were able to tolerate and bioconcentrate pyrethroids at concentrations significantly higher than toxic levels for non-resistant populations. In conjunction with elevated bioconcentration potential, environmental alteration particularly as a result of global climate change is anticipated to significantly alter abiotic parameters including temperature and salinity. These changes are expected to influence uptake and biotransformation of contaminants. Thus, the aims of the current study were a) to examine the bioconcentration potential of permethrin in two pyrethroid-resistant clades of H. azteca and b) assess the influence of temperature and salinity changes on toxicokinetic parameters. Two pyrethroid-resistant clades of H. azteca were exposed to 14C-permethrin at three salinities (0.2, 1.0 and 6.0 practical salinity units (PSU)) and temperatures (18, 23 and 28 °C). Tests were conducted for up to 36 h and uptake, elimination and biotransformation rates were calculated. Both populations demonstrated bioconcentration factors (BCFs) between five and seven times greater than published data for non-resistant H. azteca, with significant differences between clades. Calculated BCF values were comparable to field populations of resistant H. azteca, emphasizing the potential for elevated pyrethroid bioconcentration in the natural environment and increased exposure for predators consuming pyrethroid-resistant aquatic invertebrates. Alterations to temperature and salinity had no statistically significant effect on uptake or parent compound half-life in either population, though biotransformation was elevated at higher temperatures in both populations. Salinity had a variable effect between the two populations, with lower BCF values at 1.0 PSU in clade D H. azteca and greater BCFs at 6.0 PSU in clade C H. azteca. This is the first study to demonstrate the potential for future climate scenarios to influence toxicokinetics in pyrethroid-resistant aquatic organisms.
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Affiliation(s)
- Andrew P Derby
- Center for Fisheries, Aquaculture and Aquatic Sciences and Department of Zoology, Southern Illinois University, Carbondale, IL, 62901, USA
| | - Kara E Huff Hartz
- Center for Fisheries, Aquaculture and Aquatic Sciences and Department of Zoology, Southern Illinois University, Carbondale, IL, 62901, USA
| | - Neil W Fuller
- Center for Fisheries, Aquaculture and Aquatic Sciences and Department of Zoology, Southern Illinois University, Carbondale, IL, 62901, USA
| | - Peter F Landrum
- Center for Fisheries, Aquaculture and Aquatic Sciences and Department of Zoology, Southern Illinois University, Carbondale, IL, 62901, USA
| | - John D Reeve
- Department of Zoology, Southern Illinois University, Carbondale, IL, 62901, USA
| | - Helen C Poynton
- School for the Environment; University of Massachusetts; Boston, Massachusetts, 02125, USA
| | - Richard E Connon
- School of Veterinary Medicine, University of California, Davis, Davis, CA, 95616, USA
| | - Michael J Lydy
- Center for Fisheries, Aquaculture and Aquatic Sciences and Department of Zoology, Southern Illinois University, Carbondale, IL, 62901, USA.
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Fuller N, Huff Hartz KE, Johanif N, Magnuson JT, Robinson EK, Fulton CA, Poynton HC, Connon RE, Lydy MJ. Enhanced trophic transfer of chlorpyrifos from resistant Hyalella azteca to inland silversides (Menidia beryllina) and effects on acetylcholinesterase activity and swimming performance at varying temperatures. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 291:118217. [PMID: 34583267 DOI: 10.1016/j.envpol.2021.118217] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 09/16/2021] [Accepted: 09/20/2021] [Indexed: 06/13/2023]
Abstract
Chlorpyrifos, an organophosphate (OP) insecticide, is prevalent in aquatic systems globally and is often implicated in aquatic toxicity during storm events. Chlorpyrifos induces toxicity by inhibition of acetylcholinesterase (AChE) activity, which has been related to alterations to fish swimming performance. Resistance to organophosphate insecticides, including chlorpyrifos, is prevalent in populations of the epibenthic amphipod Hyalella azteca in areas with known OP exposure. Previous studies have demonstrated an elevated bioaccumulation potential of insecticide-resistant prey items, however the potential for trophic transfer of chlorpyrifos from OP-resistant prey items and associated neurotoxic effects in fish predators has not been studied. Consequently, the present study aimed to determine the potential for trophic transfer of chlorpyrifos from OP-resistant H. azteca to a known predator, the inland silverside, Menidia beryllina at two temperatures (18 and 23 °C) to simulate temperature changes associated with global climate change (GCC). Fish were fed either 14C-chlorpyrifos-dosed H. azteca or control animals for 7 d, after which total bioaccumulation, percent parent chlorpyrifos, brain AChE activity and swimming performance (ramp-Ucrit) were determined. Fish fed chlorpyrifos-dosed H. azteca bioaccumulated chlorpyrifos ranging from 29.9 to 1250 ng/g lipid, demonstrating the potential for trophic transfer. Lower bioaccumulation and greater biotransformation were observed in M. beryllina at 23 °C as compared to 18 °C, though this was not statistically significant. A significant 36.5% reduction in brain AChE activity was observed in fish fed chlorpyrifos-dosed H. azteca at 23 °C only, which may be attributed to increased biotransformation of parent chlorpyrifos to more potent AChE-inhibiting metabolites. Dietary chlorpyrifos exposure had no significant effect on swimming performance in M. beryllina, though ramp-Ucrit was significantly increased by 25% at 23 as compared to 18 °C. These findings confirm the potential for trophic transfer of chlorpyrifos from OP-resistant prey to fish predators and the potential for elevated temperatures to exacerbate the neurotoxic effects of chlorpyrifos.
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Affiliation(s)
- Neil Fuller
- Center for Fisheries, Aquaculture and Aquatic Sciences and Department of Zoology, Southern Illinois University, Carbondale, IL, 62901, USA
| | - Kara E Huff Hartz
- Center for Fisheries, Aquaculture and Aquatic Sciences and Department of Zoology, Southern Illinois University, Carbondale, IL, 62901, USA
| | - Nadhirah Johanif
- School for the Environment, University of Massachusetts Boston, Boston, MA, 02125, USA
| | - Jason T Magnuson
- Department of Environmental Sciences, University of California, Riverside, Riverside, CA, 92591, USA
| | - Eleni K Robinson
- Center for Fisheries, Aquaculture and Aquatic Sciences and Department of Zoology, Southern Illinois University, Carbondale, IL, 62901, USA
| | - Corie A Fulton
- Center for Fisheries, Aquaculture and Aquatic Sciences and Department of Zoology, Southern Illinois University, Carbondale, IL, 62901, USA
| | - Helen C Poynton
- School for the Environment, University of Massachusetts Boston, Boston, MA, 02125, USA
| | - Richard E Connon
- School of Veterinary Medicine, Department of Anatomy, Physiology and Cell Biology University of California, Davis, CA, 95616, USA
| | - Michael J Lydy
- Center for Fisheries, Aquaculture and Aquatic Sciences and Department of Zoology, Southern Illinois University, Carbondale, IL, 62901, USA.
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Derby AP, Fuller NW, Huff Hartz KE, Segarra A, Connon RE, Brander SM, Lydy MJ. Trophic transfer, bioaccumulation and transcriptomic effects of permethrin in inland silversides, Menidia beryllina, under future climate scenarios. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 275:116545. [PMID: 33578317 DOI: 10.1016/j.envpol.2021.116545] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 01/15/2021] [Accepted: 01/17/2021] [Indexed: 06/12/2023]
Abstract
Global climate change (GCC) significantly affects aquatic ecosystems. Continual use of pyrethroid insecticides results in contamination of these ecosystems and concurrent GCC raises the potential for synergistic effects. Resistance to pyrethroids has been documented in Hyalella azteca, a common epibenthic amphipod and model organism. Resistant H. azteca can bioconcentrate elevated amounts of pyrethroids and represent a threat to consumers via trophic transfer. In the present study, a predator of H. azteca, the inland silverside (Menidia beryllina), was used to examine the impacts of GCC on pyrethroid bioaccumulation via trophic transfer from resistant prey organisms. M. beryllina were fed 14C-permethrin dosed pyrethroid-resistant H. azteca for 14 days at three salinities (6, 13 and 20 practical salinity units (PSU)) and two temperatures (18 and 23 °C). Fish were analyzed for total body residues, percent parent compound and percent metabolites. Gene expression in liver and brain tissue were evaluated to assess whether dietary bioaccumulation of permethrin would impact detoxification processes, metabolism, and general stress responses. M. beryllina bioaccumulated significant amounts of permethrin across all treatments, ranging from 39 to 557 ng g-1 lipid. No statistically significant effect of temperature was found on total bioaccumulation. Salinity had a significant effect on total bioaccumulation, owing to greater bioaccumulation at 6 PSU compared to 13 and 20 PSU, which may be due to alterations to xenobiotic elimination. Permethrin bioaccumulation and the interaction with temperature and salinity elicited significant transcriptional responses in genes relating to detoxification, growth, development, and immune response. Given the increased prevalence of pesticide-resistant aquatic invertebrates, GCC-induced alterations to temperature and salinity, and the predicted increase in pesticide usage, these findings suggest trophic transfer may play an important role in pesticide bioaccumulation and effects in predatory fish.
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Affiliation(s)
- Andrew P Derby
- Center for Fisheries, Aquaculture and Aquatic Sciences and Department of Zoology, Southern Illinois University, Carbondale, IL, 62901, USA
| | - Neil W Fuller
- Center for Fisheries, Aquaculture and Aquatic Sciences and Department of Zoology, Southern Illinois University, Carbondale, IL, 62901, USA
| | - Kara E Huff Hartz
- Center for Fisheries, Aquaculture and Aquatic Sciences and Department of Zoology, Southern Illinois University, Carbondale, IL, 62901, USA
| | - Amelie Segarra
- School of Veterinary Medicine, University of California, Davis, Davis, CA, 95616, USA
| | - Richard E Connon
- School of Veterinary Medicine, University of California, Davis, Davis, CA, 95616, USA
| | - Susanne M Brander
- Department of Fisheries and Wildlife, Coastal Oregon Marine Experiment Station, Oregon State University, Newport, OR, 97365, USA
| | - Michael J Lydy
- Center for Fisheries, Aquaculture and Aquatic Sciences and Department of Zoology, Southern Illinois University, Carbondale, IL, 62901, USA.
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Vidal LG, Vannuci-Silva M, Alonso MB, Feo ML, Corcellas C, Bisi TL, Flach L, Fragoso ABL, Lima Silva FJ, Carvalho VL, de Meirelles ACO, Domit C, Barbosa LA, Cremer MJ, Azevedo AF, Torres JPM, Malm O, Lailson-Brito J, Eljarrat E. Pyrethroid insecticides along the Southwestern Atlantic coast: Guiana dolphin (Sotalia guianensis) as a bioindicator. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 728:138749. [PMID: 32570306 DOI: 10.1016/j.scitotenv.2020.138749] [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: 01/15/2020] [Revised: 04/14/2020] [Accepted: 04/14/2020] [Indexed: 06/11/2023]
Abstract
The presence of pyrethroid compounds in hepatic tissue of Guiana dolphins (Sotalia guianensis) is reported for the first time. Twelve pyrethroids were determined in 50 animals from eight locations of the Brazilian coast. The highest average concentration of total pyrethroids (∑PYR) was 1166 ng.g-1 lw, with values ranging from 148 to 5918 ng.g-1 lw, in Ilha Grande Bay, Rio de Janeiro State, while the Espírito Santo State had the highest median, 568 ng.g-1 lw. Permethrin was the predominant compound in most areas, contributing for 42% to 81% of the ∑PYR, whereas cypermethrin was the most abundant compound in Guanabara and Sepetiba bays (79% and 81%, respectively), both located in Rio de Janeiro State. Biological factors were not correlated with pyrethroids concentration. Tetramethrin and es/fenvalerate compounds were negatively correlated to the age, suggesting degradation/metabolization capacity in these animals that increases throughout life. Despite being metabolized and excreted, the wide use of these pollutants is reflected in relevant concentrations found in Guiana dolphins. This is the first study evaluating pyrethroids in a representative number of hepatic samples and covering >2600 km of coast. The overall lack of information on pyrethroids in cetaceans highlights the importance of understanding the profile and distribution of these pollutants in dolphins which exclusively inhabit the Southwestern Atlantic coast.
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Affiliation(s)
- Lara G Vidal
- Aquatic Mammal and Bioindicator Laboratory Professora Izabel Gurgel (MAQUA), School of Oceanography, Rio de Janeiro State University (UERJ), Rua São Francisco Xavier, 524/ 4002-E, Maracanã, 20550-013 Rio de Janeiro, RJ, Brazil; Radioisotope Laboratory Eduardo Penna Franca (LREPF), Biophysics Institute Carlos Chagas Filho (IBCCF), Federal University of Rio de Janeiro (UFRJ), Brazil
| | - Monizze Vannuci-Silva
- Aquatic Mammal and Bioindicator Laboratory Professora Izabel Gurgel (MAQUA), School of Oceanography, Rio de Janeiro State University (UERJ), Rua São Francisco Xavier, 524/ 4002-E, Maracanã, 20550-013 Rio de Janeiro, RJ, Brazil
| | - Mariana B Alonso
- Aquatic Mammal and Bioindicator Laboratory Professora Izabel Gurgel (MAQUA), School of Oceanography, Rio de Janeiro State University (UERJ), Rua São Francisco Xavier, 524/ 4002-E, Maracanã, 20550-013 Rio de Janeiro, RJ, Brazil; Radioisotope Laboratory Eduardo Penna Franca (LREPF), Biophysics Institute Carlos Chagas Filho (IBCCF), Federal University of Rio de Janeiro (UFRJ), Brazil
| | - Maria L Feo
- Water, Environmental and Food Chemistry, Department of Environmental Chemistry, IDAEA, CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Cayo Corcellas
- Water, Environmental and Food Chemistry, Department of Environmental Chemistry, IDAEA, CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Tatiana L Bisi
- Aquatic Mammal and Bioindicator Laboratory Professora Izabel Gurgel (MAQUA), School of Oceanography, Rio de Janeiro State University (UERJ), Rua São Francisco Xavier, 524/ 4002-E, Maracanã, 20550-013 Rio de Janeiro, RJ, Brazil
| | - Leonardo Flach
- Instituto Boto Cinza, Rua Dom Pedro I, Itacuruçá, 23870-000 Mangaratiba, RJ, Brazil
| | - Ana Bernadete Lima Fragoso
- Programa de Pós-Graduação em Ciências Naturais/Projeto Cetáceos da Costa Branca-Universidade do Estado do Rio Grande do Norte (UERN)/Projeto Golfinho Rotador. Mossoró, Rio Grande do Norte, Brazil
| | - Flávio J Lima Silva
- Programa de Pós-Graduação em Ciências Naturais/Projeto Cetáceos da Costa Branca-Universidade do Estado do Rio Grande do Norte (UERN)/Projeto Golfinho Rotador. Mossoró, Rio Grande do Norte, Brazil
| | - Vítor Luz Carvalho
- Associação de Pesquisa e Preservação de Ecossistemas Aquáticos (AQUASIS), Caucaia, Ceará, Brazil
| | | | - Camila Domit
- Ecology and Conservation Laboratory, Marine Studies Center (CEM), Federal University of Paraná (UFPR), Av Beira Mar s/n, Pontal do Sul, Pontal do Paraná, 83255-000, PR, Brazil
| | - Lupércio A Barbosa
- Environmental Awareness Organization (ORCA), Rua São Paulo, 23, Praia da Costa, Vila Velha, ES 29101-315, Brazil
| | - Marta J Cremer
- Ecology and Conservation Laboratory for marine and coastal tetrapods, University of Joinville Region (UNIVILLE), São Francisco do Sul, Rod. Duque de Caxias, 6365, Iperoba, São Francisco do Sul, 89240-000, SC, Brazil
| | - Alexandre F Azevedo
- Aquatic Mammal and Bioindicator Laboratory Professora Izabel Gurgel (MAQUA), School of Oceanography, Rio de Janeiro State University (UERJ), Rua São Francisco Xavier, 524/ 4002-E, Maracanã, 20550-013 Rio de Janeiro, RJ, Brazil
| | - João Paulo M Torres
- Aquatic Mammal and Bioindicator Laboratory Professora Izabel Gurgel (MAQUA), School of Oceanography, Rio de Janeiro State University (UERJ), Rua São Francisco Xavier, 524/ 4002-E, Maracanã, 20550-013 Rio de Janeiro, RJ, Brazil
| | - Olaf Malm
- Radioisotope Laboratory Eduardo Penna Franca (LREPF), Biophysics Institute Carlos Chagas Filho (IBCCF), Federal University of Rio de Janeiro (UFRJ), Brazil
| | - José Lailson-Brito
- Aquatic Mammal and Bioindicator Laboratory Professora Izabel Gurgel (MAQUA), School of Oceanography, Rio de Janeiro State University (UERJ), Rua São Francisco Xavier, 524/ 4002-E, Maracanã, 20550-013 Rio de Janeiro, RJ, Brazil
| | - Ethel Eljarrat
- Water, Environmental and Food Chemistry, Department of Environmental Chemistry, IDAEA, CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain.
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