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Shi W, Liu Q, Cao J, Dong J, Wang Z, Xu M. Analysis of the multi-media environmental behavior of polycyclic aromatic hydrocarbons (PAHs) within Haizhou Bay using a fugacity model. MARINE POLLUTION BULLETIN 2023; 187:114603. [PMID: 36652854 DOI: 10.1016/j.marpolbul.2023.114603] [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: 10/20/2022] [Revised: 01/06/2023] [Accepted: 01/07/2023] [Indexed: 06/17/2023]
Abstract
In this study, we aimed to quantify the transport and fate of PAHs in different environmental phases (air, seawater, soil, sediment and fish), verify application of the Level III fugacity model in a bay simulation, and understand the transport and fate of PAHs in the bay environment on a macroscopic scale. The simulated average concentrations of ∑16PAH in the air and soil (23.8 ng/m3 and 1080.91 ng/g, respectively), which is as a background reference data for the Haizhou Bay. In addition, the soil (307 t), fish (29.4 t), and sediment (9.72 t) phases were found to be important reservoirs in the Haizhou Bay. Emissions from road vehicles (658 t) accounted for the largest share of PAH emissions in the area, and atmospheric deposition contributed most to the input of PAHs to the polluted area in the region. Whereas the contribution of river runoff input was small, and degradation loss was the main output pathway.
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Affiliation(s)
- Wenting Shi
- School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, People's Republic of China; Institute of Marine Science and Technology, Shandong University, Qingdao 266237, People's Republic of China
| | - Qing Liu
- School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, People's Republic of China
| | - Jicheng Cao
- School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, People's Republic of China
| | - Jianwei Dong
- School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, People's Republic of China
| | - Zaifeng Wang
- School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, People's Republic of China.
| | - Min Xu
- School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, People's Republic of China.
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2
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Yu X, Zhang X, Chen J, Li Y, Liu X, Feng Y, Sun Y. Source, occurrence and risks of twenty antibiotics in vegetables and soils from facility agriculture through fixed-point monitoring and numerical simulation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 319:115652. [PMID: 35820309 DOI: 10.1016/j.jenvman.2022.115652] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 06/22/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
In this study, a universal method that combined fixed-point monitoring and numerical simulation was used to understand the source, fate and risks of antibiotics in environment. Results showed that the antibiotic concentration in vegetables, soil and manure from 53 fixed-point monitoring sampling sites were ND-18.47, ND-1438.50 and ND-24710.00 μg kg-1, respectively. There were positive correlations between the antibiotic concentrations of vegetables and soil as well as between soil and manure. The average Amountsoil/manure values were 1.48-46.02, indicating that antibiotics built up pseudo persistent residues in soil due to repeated fertilization. The modified level-III fugacity model showed that tetracyclines and fluoroquinolones tend to remain in soil given their sorption and mobility, while sulfonamides were highly distributed in plants, especially in leaves. Norfloxacin, ofloxacin, sulfadiazine, sulfamethoxazole and sulfisoxazole were found to be risk factors in facility agriculture and should be continuously monitored during agricultural production. Most importantly, we used the inversion method to determine the recommended maximum residue limits of antibiotics in soil. This will not only allow for better control of the amount of the antibiotics in the environment, but also act as a potential method to assess the risks of pollutants without maximum residue limits in the environment.
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Affiliation(s)
- Xiaolu Yu
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, PR China
| | - Xinyu Zhang
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, PR China; Sinofert Holdings Limited, Beijing, 100031, PR China
| | - Junhao Chen
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, PR China
| | - Yang Li
- CAIQTEST (Beijing) Co., Ltd, Beijing, 100123, PR China
| | - Xiaoxia Liu
- Beijing Cultivated Land Construction and Protection Centre, Beijing, 100029, PR China
| | - Yang Feng
- Beijing Cultivated Land Construction and Protection Centre, Beijing, 100029, PR China
| | - Ying Sun
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, PR China.
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Lu TH, Chen CY, Wang WM, Liao CM. A Risk-Based Approach for Managing Aquaculture Used Oxytetracycline-Induced TetR in Surface Water Across Taiwan Regions. Front Pharmacol 2022; 12:803499. [PMID: 35002737 PMCID: PMC8733663 DOI: 10.3389/fphar.2021.803499] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 11/22/2021] [Indexed: 11/26/2022] Open
Abstract
Oxytetracycline (OTC), one of the most important antibiotics in aquaculture industry, has been linked to emergence of antibiotic resistant genes in the aquatic environment. Given rapid growth of the aquaculture industry and unregulated use of antibiotics, it is necessary to implement measures to mitigate the impact of antibiotic resistance risk on environmental and human health. However, there is a lack of quantitative models to properly assess risk of antibiotic resistance associated with environmentally relevant antibiotic residues. To address this issue, here we developed a computational framework to assess antibiotic resistance risk posed by low-concentration OTC in aquaculture ponds and rivers across Taiwan regions. To this end, estimated amount of aquaculture used OTC as a crucial input parameter was incorporated into a multimedia fugacity model to predict environmental concentrations of OTC in surface water/sediment. A pharmacodynamic-based dose–response model was used to characterize the OTC concentration–antibiotic resistance relationships. The risk of antibiotic resistance selection in an aquatic environment could be assessed based on a probabilistic risk model. We also established a control measure model to manage the risks of substantial OTC-induced antibiotic resistance impacts. We found that OTC residues were likely to pose a high risk of tetracycline resistance (tetR) genes selection in aquaculture ponds among all the study basins, whereas risk of tetR genes selection in rivers experienced a variably changing fashion. We also showed that it was extremely difficult to moderate the tetR genes selection rates to less than 10% increase in aquaculture ponds situated at northeastern river basins in that the minimum reductions on OTC emission rates during spring, summer, and autumn were greater than 90%. On the other hand, water concentrations of OTC during spring and summer in southwestern rivers should be prioritized to be severely limited by reducing 67 and 25% of OTC emission rate, respectively. Overall, incorporating a computational fugacity model into a risk assessment framework can identify relative higher risk regions to provide the risk-based control strategies for public health decision-making and development of robust quantitative methods to zero-in on environment with high risk of tetR genes selection in relation to aquaculture-used pharmaceutical residues.
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Affiliation(s)
- Tien-Hsuan Lu
- Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei, Taiwan
| | - Chi-Yun Chen
- Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei, Taiwan
| | - Wei-Min Wang
- Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei, Taiwan
| | - Chung-Min Liao
- Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei, Taiwan
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Carrizo JC, Griboff J, Bonansea RI, Nimptsch J, Valdés ME, Wunderlin DA, Amé MV. Different antibiotic profiles in wild and farmed Chilean salmonids. Which is the main source for antibiotic in fish? THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 800:149516. [PMID: 34391145 DOI: 10.1016/j.scitotenv.2021.149516] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/02/2021] [Accepted: 08/03/2021] [Indexed: 06/13/2023]
Abstract
Fish from both aquaculture and wild capture are exposed to veterinary and medicinal antibiotics (ABs). This study explored the occurrence and probable source of 46 antibiotic residues in muscle of farmed salmon and wild trout from Chile. Results showed that at least one AB was detected in all studied samples. Diverse patterns were observed between farmed and wild specimens, with higher ABs concentrations in wild fish. Considering antimicrobial resistance, detected ABs corresponded to the categories B (Restrict), C (Caution) and D (Prudence) established by Antimicrobial Advice Ad Hoc Expert Group (European Medicines Agency). Multivariate statistic was used to verify differences between farmed and wild populations, looking for the probable source of ABs as well. Principal components analysis (PCA) revealed that ciprofloxacin, moxifloxacin, enrofloxacin, amoxicillin, penicillin G, oxolinic acid, sulfamethoxazole, trimethoprim and clarithromycin were associated with wild samples, collected during the cold season. Conversely, norfloxacin, sulfaquinoxaline, sulfadimethoxine, nitrofurantoin, nalidixic acid, penicillin V, doxycycline, flumequine, oxacillin, pipemidic acid and sulfamethizole were associated with wild samples collected during the warm season. All farmed salmon samples were associated with ofloxacin, tetracycline, cephalexin, erythromycin, azithromycin, roxithromycin, sulfabenzamide, sulfamethazine, sulfapyridine, sulfisomidin, and sulfaguanidine. In addition, linear discriminant analysis showed that the AB profile in wild fish differ from farmed ones. Most samples showed ABs levels below the EU regulatory limit for edible fish, except for sulfaquinoxaline in one sample. Additionally, nitrofurantoin (banned in EU) was detected in one aquaculture sample. The differences observed between farmed and wild fish raise questions on the probable source of ABs, either aquaculture or urban anthropic activities. Further research is necessary for linking the ABs profile in wild fish with the anthropic source. However, to our knowledge, this is the first report showing differences in the ABs profile between wild and aquaculture salmonids, which could have both environmental and health consequences.
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Affiliation(s)
- Juan Cruz Carrizo
- CONICET, CIBICI and Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Dpto. Bioquímica Clínica, Ciudad Universitaria, Medina Allende esq. Haya de la Torre s/n, 5000 Córdoba, Argentina
| | - Julieta Griboff
- CONICET, CIBICI and Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Dpto. Bioquímica Clínica, Ciudad Universitaria, Medina Allende esq. Haya de la Torre s/n, 5000 Córdoba, Argentina
| | - Rocío Inés Bonansea
- CONICET, ICYTAC and Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Dpto. Química Orgánica, Ciudad Universitaria, Bv. Juan Filloy s/n, 5000 Córdoba, Argentina
| | - Jorge Nimptsch
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, 5090000 Valdivia, Chile
| | - María Eugenia Valdés
- CONICET, ICYTAC and Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Dpto. Química Orgánica, Ciudad Universitaria, Bv. Juan Filloy s/n, 5000 Córdoba, Argentina
| | - Daniel Alberto Wunderlin
- CONICET, ICYTAC and Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Dpto. Química Orgánica, Ciudad Universitaria, Bv. Juan Filloy s/n, 5000 Córdoba, Argentina
| | - María Valeria Amé
- CONICET, CIBICI and Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Dpto. Bioquímica Clínica, Ciudad Universitaria, Medina Allende esq. Haya de la Torre s/n, 5000 Córdoba, Argentina.
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5
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Roy Choudhury A, Park JY, Kim DY, Choi J, Acharya S, Park JH. Exposure to Oxy-Tetracycline Changes Gut Bacterial Community Composition in Rainbow Trout: A Preliminary Study. Animals (Basel) 2021; 11:ani11123404. [PMID: 34944183 PMCID: PMC8698040 DOI: 10.3390/ani11123404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/15/2021] [Accepted: 11/27/2021] [Indexed: 12/12/2022] Open
Abstract
The extensive use of antibiotics is evident in most of the livestock and aquaculture management for inhibiting pathogen infection. Korean aquaculture depends on the usage of oxy-tetracycline for growing rainbow trout. Hence, this study was conducted to evaluate the changes in gut bacterial community profiles of rainbow trout exposed to oxy-tetracycline and predict the metabolic functioning of the bacterial community. The gut bacterial community composition of oxy-tetracycline treated fish was assessed by amplicon sequencing targeting the 16S rRNA gene of bacteria and comparing with the control group that did not receive any antibiotic. The principle coordinate analysis and non-metric multidimensional scaling analysis had shown two distinct clusters that implies the changes in community composition. In phyla level, the relative abundances of Tenericutes and Firmicutes were observed to be significantly higher in oxy-tetracycline treated fish compared to the control. Furthermore, the prediction based metabolic profiling revealed the processes that are affected due to the shift in community profiles. For example, metabolic functioning of membrane efflux system, amino acid metabolism and glycolysis were significantly higher in oxy-tetracycline treated fish compared to the control. This study describes alteration in gut bacterial community composition and potential metabolic profiles of the community that might be responsible for surviving in antibiotic rich environment.
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Affiliation(s)
- Aritra Roy Choudhury
- Bio-Evaluation Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Korea; (A.R.C.); (J.-Y.P.); (D.Y.K.); (J.C.)
| | - Ji-Young Park
- Bio-Evaluation Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Korea; (A.R.C.); (J.-Y.P.); (D.Y.K.); (J.C.)
| | - Do Young Kim
- Bio-Evaluation Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Korea; (A.R.C.); (J.-Y.P.); (D.Y.K.); (J.C.)
| | - Jeongyun Choi
- Bio-Evaluation Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Korea; (A.R.C.); (J.-Y.P.); (D.Y.K.); (J.C.)
| | - Satabdi Acharya
- Department of Bioactive Material Science, College of Natural Science, Jeonbuk National University, Jeonju 54896, Korea;
| | - Jung-Ho Park
- Bio-Evaluation Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Korea; (A.R.C.); (J.-Y.P.); (D.Y.K.); (J.C.)
- Department of Bioprocess Engineering, University of Science and Technology (UST) of Korea, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Korea
- Correspondence:
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6
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Jara B, Tucca F, Srain BM, Méjanelle L, Aranda M, Fernández C, Pantoja-Gutiérrez S. Antibiotics florfenicol and flumequine in the water column and sediments of Puyuhuapi Fjord, Chilean Patagonia. CHEMOSPHERE 2021; 275:130029. [PMID: 33984897 DOI: 10.1016/j.chemosphere.2021.130029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 01/28/2021] [Accepted: 02/13/2021] [Indexed: 06/12/2023]
Abstract
Chile is a major global producer of farmed salmon in the fjords of Patagonia, and therefore a major consumer of antibiotics. We tested whether the antibiotics florfenicol and flumequine persisted in the large Puyuhuapi Fjord after the six months following mandatory concerted treatment by all salmon farms present in the fjord. Antibiotics were detected in 26% of analyzed samples, but only within the particulate phase, with concentrations of florfenicol of up to 23.1 ng L-1, where detected. Flumequine was present in one sample at trace concentration, and neither antibiotic was detected in the dissolved phase nor in surface sediments. A fugacity-based model predicted that flumequine should theoretically remain in surface sediments at the sub-Minimal Inhibiting Concentrations (sub-MIC) previously shown to promote selection for antibiotic resistance in bacteria. Our observations suggest that surface sediments might act as a reservoir for antibiotic resistomes of bacteria, and that bacteria bearing antibiotic resistance genes could eventually become a risk for human health through the consumption of marine products.
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Affiliation(s)
- Bibiana Jara
- Programa de Postgrado en Oceanografía, Departamento de Oceanografía, Universidad de Concepción, Concepción, Chile; Facultad de Ciencias, Universidad de Magallanes, Punta Arenas, Chile; Departamento de Oceanografía and Centro de Investigación Oceanográfica COPAS Sur-Austral (PIA ANID), Universidad de Concepción, Concepción, Chile; Laboratory of Ecogeochemistry of Benthic Environments - UMR 8222 Centre National de Recherche Scientifique - Sorbonne Université, Banyuls sur Mer, Paris, France
| | - Felipe Tucca
- Norwegian Institute for Water Research (NIVA Chile), Puerto Varas, Chile
| | - Benjamín M Srain
- Departamento de Oceanografía and Centro de Investigación Oceanográfica COPAS Sur-Austral (PIA ANID), Universidad de Concepción, Concepción, Chile
| | - Laurence Méjanelle
- Laboratory of Ecogeochemistry of Benthic Environments - UMR 8222 Centre National de Recherche Scientifique - Sorbonne Université, Banyuls sur Mer, Paris, France
| | - Mario Aranda
- Departamento de Ciencia y Tecnología de los Alimentos, Universidad de Concepción, Concepción, Chile
| | - Camila Fernández
- Departamento de Oceanografía and Centro de Investigación Oceanográfica COPAS Sur-Austral (PIA ANID), Universidad de Concepción, Concepción, Chile; LOMIC UMR7621, Observatoire Océanologique, Banyuls sur Mer, Sorbonne Université and CNRS, France
| | - Silvio Pantoja-Gutiérrez
- Departamento de Oceanografía and Centro de Investigación Oceanográfica COPAS Sur-Austral (PIA ANID), Universidad de Concepción, Concepción, Chile.
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Abstract
While marine aquaculture, or mariculture, has been growing rapidly and globally in recent decades, many environmental concerns remain to be fully addressed to achieve its long-term goal of sustainable development. This paper aims to provide a synthesized perspective on these issues by reviewing and discussing the characterization, transport, and current modelling and management tools associated with effluents released from mariculture sites. Specifically, we examined the effluent characteristics and behavior from source-to-sink, including the composition and load of effluent discharge, its transport and transformation processes in the water column and at the seabed, and its impacts on the pelagic and benthic environments. We then focused on management-related issues, including the setting of the regulatory mixing zone, the establishment of environmental standards, monitoring measures, and modelling techniques to depict the current state-of-the-art modes in a global context. Our study shows that while substantial progress has been made in understanding the nature of the mariculture effluent, as well as in monitoring and modelling its transport and fate, the regulatory framework still lags behind in many countries where the mariculture industry is relevant. This is particularly evident in the lack of consistent criteria for the definition of regulatory mixing zones and the associated environmental standards for water quality and benthic impacts. Besides, as new predictive models are emerging quickly, their proper evaluation and validation are imperative in view of their increasing application in regulatory practices. This review is intended to provide references for advancing regulatory management of mariculture effluents, as well as for promoting sustainable mariculture development.
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Khan HK, Rehman MYA, Malik RN. Fate and toxicity of pharmaceuticals in water environment: An insight on their occurrence in South Asia. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 271:111030. [PMID: 32778310 DOI: 10.1016/j.jenvman.2020.111030] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 06/12/2020] [Accepted: 06/28/2020] [Indexed: 05/05/2023]
Abstract
Pharmaceutically active compounds are newly recognized micropollutants which are ubiquitous in aquatic environment mainly due to direct discharge of treated and untreated wastewater from wastewater treatment plants. These contaminants have attracted mounted attention due to their toxic effects on aquatic life. They disrupt biological processes in non-target lower organisms upon exposure. Biodegradation, photo-degradation, and sorption are key processes which determine their fate in the environment. A variety of conventional and advanced treatment processes had been extensively investigated for the removal of pharmaceuticals from wastewater. However, due to structural complexity and varying operating parameters, complete removal seems ideal. Generally, due to high energy requirement of advanced treatment technology, it is considered cost ineffective. Transport of pharmaceutical compounds occurs via aquatic channels whereas sediments and aquatic colloids play a significant role as sinks for these contaminants. The current review provides a critical understanding of fate and toxicity of pharmaceutical compounds and highlights their vulnerability and occurrence in South Asia. Antibiotics, analgesics, and psychiatric drugs were found predominantly in the water environment of South Asian regions. Despite significant advances in understanding pharmaceuticals fate, toxicity, and associated risks since the 1990s, still substantial data gaps in terms of monitoring, human health risks, and legislation exist which presses the need to develop a more in-depth and interdisciplinary understanding of the subject.
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Affiliation(s)
- Hudda Khaleeq Khan
- Environmental Health Laboratory, Department of Environmental Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Muhammad Yasir Abdur Rehman
- Environmental Health Laboratory, Department of Environmental Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Riffat Naseem Malik
- Environmental Health Laboratory, Department of Environmental Sciences, Quaid-i-Azam University, Islamabad, Pakistan.
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Choi S, Sim W, Jang D, Yoon Y, Ryu J, Oh J, Woo JS, Kim YM, Lee Y. Antibiotics in coastal aquaculture waters: Occurrence and elimination efficiency in oxidative water treatment processes. JOURNAL OF HAZARDOUS MATERIALS 2020; 396:122585. [PMID: 32298861 DOI: 10.1016/j.jhazmat.2020.122585] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 03/11/2020] [Accepted: 03/24/2020] [Indexed: 06/11/2023]
Abstract
The influents and effluents of coastal flow-through aquacultures in Korea were monitored for four selected antibiotics (amoxicillin-AMX, florfenicol-FLO, oxolinic acid-OXO, and oxytetracycline-OTC). A number of 177 samples were obtained from 16 aquaculture facilities for a monitoring period of two years. OTC was detected in 93 samples with a median concentration of 116 ng/L. OXO, FLO, and AMX were also detected in 36, 34, and 22 samples with median concentrations of 90, 44, and 63 ng/L, respectively. After antibiotics were applied to fish tanks, the aquaculture effluents were found to contain antibiotics up to several hundred μg/L, indicating that some control measures are required. Bench-scale experiments showed that chlorine and ozone fully eliminated AMX and OTC but not FLO at ≤2 mg/L of oxidant dosage. Reactive halogen species formed in the marine water matrix enhanced the antibiotic degradation. UV254 most effectively eliminated FLO, achieving 60-70 % elimination at 1000 mJ/cm2 of UV fluence. Sequential use of chlorine followed by UV254 demonstrated significant elimination of all four selected antibiotics. The obtained kinetic information for the reactions of these oxidants and UV with the antibiotics and marine aquaculture water constituents could be useful for designing and optimizing the aquaculture water treatment processes.
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Affiliation(s)
- Sangki Choi
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Woohyung Sim
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Dong Jang
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Younggun Yoon
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Jungmoon Ryu
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Jeongbum Oh
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Jeong-Seok Woo
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Young Mo Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimri-ro, Seongdong-gu, Seoul, 133-791, Republic of Korea
| | - Yunho Lee
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea.
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Peng YY, Gao F, Yang HL, Wu HWJ, Li C, Lu MM, Yang ZY. Simultaneous removal of nutrient and sulfonamides from marine aquaculture wastewater by concentrated and attached cultivation of Chlorella vulgaris in an algal biofilm membrane photobioreactor (BF-MPBR). THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 725:138524. [PMID: 32302854 DOI: 10.1016/j.scitotenv.2020.138524] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 03/24/2020] [Accepted: 04/05/2020] [Indexed: 06/11/2023]
Abstract
Microalgae based wastewater treatment has attracted increasing attention for its many advantages in recent years. In this study, a novel microalgae biofilm membrane photobioreactor (BF-MPBR) was developed for the efficient microalgae cultivation and the removal of nutrient and sulfonamides (SAs) from marine aquaculture wastewater. Two BF-MPBRs with hydraulic retention time (HRT) of 1 day and 2 days respectively were continuously operated for 70 days without harvesting microalgae. Concentrated and attached culture of marine Chlorella vulgaris was achieved in these continuous flow BF-MPBRs due to the suspended solid carriers and microfiltration membrane module in the reactors. The algal biomass productivity achieved in BF-MPBRs with HRT of 1 day and 2 days were 14.02 and 22.03 mg L-1 day-1, respectively. In addition, at the end of the cultivation, 60.4% and 45.0% of microalgae were fixed into algal biofilm in BF-MPBRs with 1 day and 2 day HRT, respectively. Compared with batch cultivation, more efficient nutrient and SAs removal performance was achieved in BF-MPBRs, although the HRT of the BF-MPBRs used in this study was only 1 or 2 days. During the stable operation stage of the BF-MPBRs, the reduction in dissolved inorganic nitrogen (DIN), dissolved inorganic phosphorus (DIP), sulfadiazine (SDZ), sulfamethazine (SMZ) and sulfamethoxazole (SMX) were found in the range of 91.0-99.6%, 92.1-98.4%, 61.0-79.2%, 50.0-76.7% and 60.8-82.1%, respectively. Therefore, nutrient and SAs were simultaneously and efficiently removed from marine aquaculture wastewater by microalgae cultivation in BF-MPBR.
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Affiliation(s)
- Yuan-Yuan Peng
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316000, China
| | - Feng Gao
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316000, China.
| | - Hong-Li Yang
- College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316000, China
| | - Hang-Wei-Jing Wu
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316000, China
| | - Chen Li
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316000, China
| | - Miao-Miao Lu
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316000, China
| | - Zi-Yan Yang
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316000, China
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Wang Y, Fan L, Khan SJ, Roddick FA. Fugacity modelling of the fate of micropollutants in aqueous systems - Uncertainty and sensitivity issues. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 699:134249. [PMID: 31522051 DOI: 10.1016/j.scitotenv.2019.134249] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 08/15/2019] [Accepted: 09/01/2019] [Indexed: 06/10/2023]
Abstract
The application of multimedia fugacity models is useful to facilitate understanding of the behaviour of emerging contaminants during wastewater treatment, as well as after their release to the environment. In this paper, twenty-two fugacity modelling applications (reported over 1995-2019) describing the distribution of organic micropollutants in wastewater treatment plants and surface water bodies were analysed in terms of model application and modelling strategy. Disparities and similarities in strategies including selection of micropollutants, data sources for internal and external model inputs, sensitivity and uncertainty analysis, as well as model validation were discussed. This review confirmed that fugacity modelling is very applicable for providing qualitative predictions of the fate and removal of organic micropollutants in the various aqueous systems. However, it was also noted that there are issues related to the uncertainties and sensitivities of fugacity models such as the sources of model inputs and selection of default settings. The issues associated with the uncertainties in the investigated fugacity models are pointed out. Recommendations are given regarding the selection of the sources of model inputs, sensitivity analysis strategies and model validation methods. This review presents the challenges and opportunities for improving multimedia fugacity models, and so paves the way for future research in this field.
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Affiliation(s)
- Yufei Wang
- School of Engineering, RMIT University, GPO Box 2476, Melbourne, VIC 3001, Australia
| | - Linhua Fan
- School of Engineering, RMIT University, GPO Box 2476, Melbourne, VIC 3001, Australia
| | - Stuart J Khan
- School of Civil and Environmental Engineering, UNSW, Sydney, NSW 2052, Australia
| | - Felicity A Roddick
- School of Engineering, RMIT University, GPO Box 2476, Melbourne, VIC 3001, Australia.
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Zeng Q, Liao C, Terhune J, Wang L. Impacts of florfenicol on the microbiota landscape and resistome as revealed by metagenomic analysis. MICROBIOME 2019; 7:155. [PMID: 31818316 PMCID: PMC6902485 DOI: 10.1186/s40168-019-0773-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 12/02/2019] [Indexed: 05/26/2023]
Abstract
BACKGROUND Drug-resistant fish pathogens can cause significant economic loss to fish farmers. Since 2012, florfenicol has become an approved drug for treating both septicemia and columnaris diseases in freshwater fish. Due to the limited drug options available for aquaculture, the impact of the therapeutical florfenicol treatment on the microbiota landscape as well as the resistome present in the aquaculture farm environment needs to be evaluated. RESULTS Time-series metagenomic analyses were conducted to the aquatic microbiota present in the tank-based catfish production systems, in which catfish received standard therapeutic 10-day florfenicol treatment following the federal veterinary regulations. Results showed that the florfenicol treatment shifted the structure of the microbiota and reduced the biodiversity of it by acting as a strong stressor. Planctomycetes, Chloroflexi, and 13 other phyla were susceptible to the florfenicol treatment and their abundance was inhibited by the treatment. In contrast, the abundance of several bacteria belonging to the Proteobacteria, Bacteroidetes, Actinobacteria, and Verrucomicrobia phyla increased. These bacteria with increased abundance either harbor florfenicol-resistant genes (FRGs) or had beneficial mutations. The florfenicol treatment promoted the proliferation of florfenicol-resistant genes. The copy number of phenicol-specific resistance genes as well as multiple classes of antibiotic-resistant genes (ARGs) exhibited strong correlations across different genetic exchange communities (p < 0.05), indicating the horizontal transfer of florfenicol-resistant genes among these bacterial species or genera. Florfenicol treatment also induced mutation-driven resistance. Significant changes in single-nucleotide polymorphism (SNP) allele frequencies were observed in membrane transporters, genes involved in recombination, and in genes with primary functions of a resistance phenotype. CONCLUSIONS The therapeutical level of florfenicol treatment significantly altered the microbiome and resistome present in catfish tanks. Both intra-population and inter-population horizontal ARG transfer was observed, with the intra-population transfer being more common. The oxazolidinone/phenicol-resistant gene optrA was the most prevalent transferred ARG. In addition to horizontal gene transfer, bacteria could also acquire florfenicol resistance by regulating the innate efflux systems via mutations. The observations made by this study are of great importance for guiding the strategic use of florfenicol, thus preventing the formation, persistence, and spreading of florfenicol-resistant bacteria and resistance genes in aquaculture.
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Affiliation(s)
- Qifan Zeng
- Department of Animal Sciences, Auburn University, Auburn, AL, 36830, USA
- Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Science, Ocean University of China, Qingdao, 266003, Shandong, China
| | - Chao Liao
- Department of Animal Sciences, Auburn University, Auburn, AL, 36830, USA
- Department of Food Science and Technology, University of California Davis, Davis, CA, 95616, USA
| | - Jeffery Terhune
- Department of Fisheries and Allied Aquacultures, 203 Swingle Hall, Auburn University, Auburn, AL, 36849, USA
| | - Luxin Wang
- Department of Animal Sciences, Auburn University, Auburn, AL, 36830, USA.
- Department of Food Science and Technology, University of California Davis, Davis, CA, 95616, USA.
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Chen LL, Tseng CH, Tseng WJ. Development of a system dynamics model for polycyclic aromatic hydrocarbons and its application to assess the benefits of pollution reduction. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 166:231-236. [PMID: 30273845 DOI: 10.1016/j.ecoenv.2018.09.072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 09/12/2018] [Accepted: 09/15/2018] [Indexed: 06/08/2023]
Abstract
A dynamic multimedia transport (DMT) model for polycyclic aromatic hydrocarbons (PAHs) was constructed using the system dynamics software STELLA to simulate the transmission and flow of PAHs in different media. Humans are primarily exposed to PAHs via ingestion. Thus, this study used the DMT model to simulate the concentrations of PAHs in food media and the human body and assess the risk of harm to humans. On the basis of the hypothesis of PAH reduction in the Taiwanese steel industry, two scenarios were used (cases I and II), and integration indicators such as the Air Resource Co-Benefit Model of air pollutants, greenhouse gases, and PAHs reduction was established for the cost-benefit analysis of the reduction scenarios. This study not only established Taiwan's PAHs dynamic multimedia transmission model successfully but also performed a reduction scenario on the steel industry. In the year 2025, the total costs for cases I and II will be USD 690 and USD 694 million per year, respectively, and the total benefits will be USD 492 and 1669 million per year, respectively. Therefore, case II is preferable to case I in terms of benefit ratio (2.40 vs. 2.35, respectively).
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Affiliation(s)
- Ling-Ling Chen
- Institute of Environment Engineering and Management, National Taipei University of Technology, 1, Sec. 3, Zhongxiao E. Rd., Taipei 10608, Taiwan.
| | - Chao-Heng Tseng
- Institute of Environment Engineering and Management, National Taipei University of Technology, 1, Sec. 3, Zhongxiao E. Rd., Taipei 10608, Taiwan.
| | - Wei-Jen Tseng
- Institute of Environment Engineering and Management, National Taipei University of Technology, 1, Sec. 3, Zhongxiao E. Rd., Taipei 10608, Taiwan.
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