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Baillieul M, Rinnert E, Lemaitre J, Michel K, Colas F, Bodiou L, Demésy G, Kakuta S, Rumyantseva A, Lerondel G, Boukerma K, Renversez G, Toury T, Charrier J, Nazabal V. Surface Functionalization with Polymer Membrane or SEIRA Interface to Improve the Sensitivity of Chalcogenide-Based Infrared Sensors Dedicated to the Detection of Organic Molecules. ACS OMEGA 2022; 7:47840-47850. [PMID: 36591173 PMCID: PMC9798758 DOI: 10.1021/acsomega.2c05502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
Priority substances likely to pollute water can be characterized by mid-infrared spectroscopy based on their specific absorption spectral signature. In this work, the detection of volatile aromatic molecules in the aqueous phase by evanescent-wave spectroscopy has been optimized to improve the detection efficiency of future in situ optical sensors based on chalcogenide waveguides. To this end, a hydrophobic polymer was deposited on the surface of a zinc selenide prism using drop and spin-coating methods. To ensure that the water absorption bands will be properly attenuated for the selenide waveguides, two polymers were selected and compared: polyisobutylene and ethylene/propylene copolymer coating. The system was tested with benzene, toluene, and ortho-, meta-, and para-xylenes at concentrations ranging from 10 ppb to 40 ppm, and the measured detection limit was determined to be equal to 250 ppb under these analytical conditions using ATR-FTIR. The polyisobutylene membrane is promising for pollutant detection in real waters due to the reproducibility of its deposition on selenide materials, the ease of regeneration, the short response time, and the low ppb detection limit, which could be achieved with the infrared photonic microsensor based on chalcogenide materials. To improve the sensitivity of future infrared microsensors, the use of metallic nanostructures on the surface of chalcogenide waveguides appears to be a relevant way, thanks to the plasmon resonance phenomena. Thus, in addition to preliminary surface-enhanced infrared absorption tests using these materials and a functionalization via a self-assembled monolayer of 4-nitrothiophenol, heterostructures combining gold nanoparticles/chalcogenide waveguides have been successfully fabricated with the aim of proposing a SEIRA microsensor device.
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Affiliation(s)
- Marion Baillieul
- Univ
Rennes 1, CNRS, ISCR - UMR6226, F-35000Rennes, France
- IFREMER,
Laboratoire Détection, Capteurs et Mesures, 29280Plouzané, France
- Department
of Graphic Arts and Photophysics, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 53210Pardubice, Czech Republic
| | - Emmanuel Rinnert
- IFREMER,
Laboratoire Détection, Capteurs et Mesures, 29280Plouzané, France
| | - Jonathan Lemaitre
- Univ
Rennes 1, CNRS, Institut Foton - UMR 6082, F-22305Lannion, France
| | - Karine Michel
- BRGM,
Direction Eau, Environnement et Ecotechnologies, Unité Bio-Géochimie
environnementale et qualité de l’Eau, 45060Orléans, France
| | - Florent Colas
- IFREMER,
Laboratoire Détection, Capteurs et Mesures, 29280Plouzané, France
| | - Loïc Bodiou
- BRGM,
Direction Eau, Environnement et Ecotechnologies, Unité Bio-Géochimie
environnementale et qualité de l’Eau, 45060Orléans, France
| | - Guillaume Demésy
- Institut
Fresnel, Marseille, Université Aix Marseille, CNRS, 13397Marseille, France
| | - Seyriu Kakuta
- Laboratoire
Lumière, nanomatériaux et nanotechnologies, CNRS ERL
7004, Université de Technologie de
Troyes, 10004Troyes, France
| | - Anna Rumyantseva
- Laboratoire
Lumière, nanomatériaux et nanotechnologies, CNRS ERL
7004, Université de Technologie de
Troyes, 10004Troyes, France
| | - Gilles Lerondel
- Laboratoire
Lumière, nanomatériaux et nanotechnologies, CNRS ERL
7004, Université de Technologie de
Troyes, 10004Troyes, France
| | - Kada Boukerma
- IFREMER,
Laboratoire Détection, Capteurs et Mesures, 29280Plouzané, France
| | - Gilles Renversez
- Institut
Fresnel, Marseille, Université Aix Marseille, CNRS, 13397Marseille, France
| | - Timothée Toury
- Laboratoire
Lumière, nanomatériaux et nanotechnologies, CNRS ERL
7004, Université de Technologie de
Troyes, 10004Troyes, France
| | - Joël Charrier
- Univ
Rennes 1, CNRS, Institut Foton - UMR 6082, F-22305Lannion, France
| | - Virginie Nazabal
- Univ
Rennes 1, CNRS, ISCR - UMR6226, F-35000Rennes, France
- Department
of Graphic Arts and Photophysics, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 53210Pardubice, Czech Republic
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2
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Wu J, Xu G, Guo H, Zhang Y, Xia F, Fang G. Study on Risk Assessment Methods and Zoning of Hazardous Chemicals Leaking into Seas. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:14713. [PMID: 36429435 PMCID: PMC9690714 DOI: 10.3390/ijerph192214713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 11/02/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
In China, studies on the regional risk assessment of hazardous chemicals have been carried out for only a few years, and there are few studies on hazardous chemicals leaking into seas. Previous regional-risk-assessment methods considered a single risk factor for most assessment targets, and comprehensive considerations of risk sources and sensitive resources for a study area are not sufficiently included. Based on previous work, this study established a regional-risk-assessment method for hazardous chemicals leaking into seas. This method considered the hazards of hazardous chemicals and the tolerance of the regional environment by means of a case study in Tianjin. The results showed that the risk level of the enterprise was Grade I, classified as a high-risk source of hazardous chemicals; the main reasons were the strong toxicity and large quantity of hazardous chemicals. This method provides technical support for scientifically assessing marine-environmental-risk levels for hazardous-chemical-leakage areas and for carrying out risk-prevention and restoration assessments of hazardous chemicals leaking into seas.
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Affiliation(s)
- Jiangyue Wu
- National Marine Hazard Mitigation Service, Ministry of Natural Resources of the People’s Republic of China, Beijing 100194, China
| | - Guodong Xu
- National Marine Hazard Mitigation Service, Ministry of Natural Resources of the People’s Republic of China, Beijing 100194, China
| | - Haoshuang Guo
- National Marine Hazard Mitigation Service, Ministry of Natural Resources of the People’s Republic of China, Beijing 100194, China
| | - Yao Zhang
- National Marine Hazard Mitigation Service, Ministry of Natural Resources of the People’s Republic of China, Beijing 100194, China
| | - Fang Xia
- School of Land Science and Technology, China University of Geosciences, Beijing 100083, China
| | - Gang Fang
- Chinese Research Academy of Environmental Sciences, Beijing 100012, China
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3
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Shakeel A, Rizwan K, Farooq U, Iqbal S, Altaf AA. Advanced polymeric/inorganic nanohybrids: An integrated platform for gas sensing applications. CHEMOSPHERE 2022; 294:133772. [PMID: 35104552 DOI: 10.1016/j.chemosphere.2022.133772] [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: 09/09/2021] [Revised: 01/23/2022] [Accepted: 01/25/2022] [Indexed: 05/27/2023]
Abstract
Rapid industrial development, vehicles, domestic activities and mishandling of garbage are the main sources of pollutants, which are destroying the atmosphere. There is a need to continuously monitor these pollutants for the safety of the environment and human beings. Conventional instruments for monitoring of toxic gases are expensive, bigger in size and time-consuming. Hybrid materials containing organic and inorganic components are considered potential candidates for diverse applications, including gas sensing. Gas sensors convert the information regarding the analyte into signals. Various polymeric/inorganic nanohybrids have been used for the sensing of toxic gases. Composites of different polymeric materials like polyaniline (PANI), poly (4-styrene sulfonate) (PSS), poly (3,4-ethylene dioxythiophene) (PEDOT), etc. with various metal/metal oxide nanoparticles have been reported as sensing materials for gas sensors because of their unique redox features, conductivity and facile operation at room temperature. Polymeric nanohybrids showed better performance because of the larger surface area of nanohybrids and the synergistic effect between polymeric and inorganic materials. This review article focuses on the recent developments of emerging polymeric/inorganic nanohybrids for sensing various toxic gases including ammonia, hydrogen, nitrogen dioxide, carbon oxides and liquefied petroleum gas. Advantages, disadvantages, operating conditions and prospects of hybrid composites have also been discussed.
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Affiliation(s)
- Ahmad Shakeel
- Faculty of Civil Engineering and Geosciences, Department of Hydraulic Engineering, Delft University of Technology, Stevinweg 1, 2628, CN, Delft, the Netherlands; Department of Chemical, Polymer & Composite Materials Engineering, University of Engineering & Technology, Lahore, New Campus, 54890, Pakistan.
| | - Komal Rizwan
- Department of Chemistry, University of Sahiwal, Sahiwal, 57000, Pakistan.
| | - Ujala Farooq
- Faculty of Aerospace Engineering, Department of Aerospace Structures and Materials, Delft University of Technology, Kluyverweg 1, 2629, HS, Delft, the Netherlands
| | - Shahid Iqbal
- Department of Chemistry, School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), H-12, Islamabad, 46000, Pakistan
| | - Ataf Ali Altaf
- Department of Chemistry, University of Okara, Okara, 56300, Pakistan
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Sahoo MM, Sahoo NK, Daverey A, Raut S. Co-metabolic biodegradation of 4-bromophenol in a mixture of pollutants system by Arthrobacter chlorophenolicus A6. ECOTOXICOLOGY (LONDON, ENGLAND) 2022; 31:602-614. [PMID: 35059927 DOI: 10.1007/s10646-021-02508-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/19/2021] [Indexed: 06/14/2023]
Abstract
Brominated phenols are listed as priority pollutants together with nitrophenol and chlorophenol are the key components of paper pulp wastewater. However, the biodegradation of bromophenol in a mixed substrate system is very scanty. In the present investigation, simultaneous biodegradation kinetics of three substituted phenols 4-bromophenol (4-BP), 4-nitrophenol (4-NP), and 4-chlorophenol (4-CP) were investigated using Arthrobacter chlorophenolicus A6. A 23 full factorial design was applied with varying 4-BP and 4-CP from 75-125 mg/L and 4-NP from 50-100 mg/L. Almost complete degradation of this mixture of substituted phenols was achieved at initial concentration combinations of 125, 125, and 100 mg/L of 4-CP, 4-BP, and 4-NP, respectively, in 68 h. Statistical analysis of the results revealed that, among the three variables, 4-NP had the most prominent influence on the degradation of both 4-CP and 4-BP, while the concentration of 4-CP had a strong negative interaction effect on the biodegradation of 4-NP. Irrespective of the concentration levels of these three substrates, 4-NP was preferentially biodegraded over 4-CP and 4-BP. Furthermore, 4-BP biodegradation rates were found to be higher than those of 4-CP, followed by 4-NP. Besides, the variation of the biomass yield coefficient of the culture was investigated at different initial concentration combinations of these substituted phenols. Although the actinomycetes consumed 4-NP at a faster rate, the biomass yield was very poor. This revealed that the microbial cells were more stressed when grown on 4-NP compared to 4-BP and 4-CP. Overall, this study revealed the potential of A. chlorophenolicus A6 for the degradation of 4-BP in mixed substrate systems.
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Affiliation(s)
- Mitali Madhusmita Sahoo
- Centre for Biotechnology, Siksha 'O'Anusandhan, Deemed to be University, Bhubaneswar, 751 030, Odisha, India
| | - Naresh Kumar Sahoo
- Department of Chemistry, Environmental Science and Technology Program, Institute of Technical Education and Research, Siksha'O'Anusandhan, Deemed to be University, Bhubaneswar, 751 030, Odisha, India.
| | - Achlesh Daverey
- School of Environment & Natural Resources, Doon University, Dehradun, 248012, Uttarakhand, India
| | - Sangeeta Raut
- Centre for Biotechnology, Siksha 'O'Anusandhan, Deemed to be University, Bhubaneswar, 751 030, Odisha, India
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Impact of P-Chloroaniline on Oxidative Stress and Biomacromolecules Damage in the Clam Ruditapes philippinarums: A Simulate Toxicity Test of Spill Incident. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19095092. [PMID: 35564486 PMCID: PMC9105863 DOI: 10.3390/ijerph19095092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/21/2021] [Accepted: 10/26/2021] [Indexed: 01/25/2023]
Abstract
As a hazardous chemical, p-chloroaniline (PCA) shows intensive adsorption and accumulation after entering the aquatic ecosystem, which can be enriched in organisms and cause damage. With the objective of achieving an integrated and mechanistic view of the toxic effects of PCA in the marine sentinel organism Ruditapes philippinarum, Manila clams were exposed to different concentration of PCA (0.5, 2 and 5 mg/L) for 15 days. Focusing on the gills, first targeting the toxic and digestive gland, the metabolic detoxification organ, we detected dose- and time-related changes inantioxidase activities and biomacromolecular damages in treated clams. Glutathione S-transferase (GST) activity and glutathione (GSH) contents were significantly induced, and superoxide dismutase (SOD) activity increased at the beginning of exposure and then decreased. The malondialdehyde (MDA) and protein methylation (PC) contents which represent lipid peroxidation and carbonylation of proteins, increased first with exposure time and then decreased in the digestive gland. DNA strand break levels were consistently higher than those in the control group. The digestive gland showed more sensitivity to the stress of PCA than the gills. GST and MDA in the gill and GST, GSH, SOD, DNA strand break level in the digestive gland showed significant correlation with PCA exposure, which indicated that these parameters can be used as sensitive biomarkers to indicate toxic effects from chloraniline leakage.
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Solar-Driven Unmanned Hazardous and Noxious Substance Trapping Devices Equipped with Reverse Piloti Structures and Cooling Systems. Polymers (Basel) 2022; 14:polym14030631. [PMID: 35160619 PMCID: PMC8839944 DOI: 10.3390/polym14030631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/04/2022] [Accepted: 02/04/2022] [Indexed: 01/07/2023] Open
Abstract
A solar-driven unmanned hazardous and noxious substance (HNS) trapping device that can absorb, evaporate, condense, and collect HNSs was prepared. The HNS trapping device was composed of three parts: a reverse piloti structure (RPS) for absorption and evaporation of HNSs, Al mirrors with optimized angles for focusing light, and a cooling line system for the condensation of HNSs. The RPS was fabricated by assembling a lower rectangle structure and an upper hollow column. The lower rectangular structure showed a toluene evaporation rate of 6.31 kg/m2 h, which was significantly increased by the installation of the upper hollow column (11.21 kg/m2 h) and led to the formation of the RPS. The installation of Al mirrors on the RPS could further enhance the evaporation rate by 9.1% (12.28 kg/m2 h). The RPS system equipped with an Al mirror could rapidly remove toluene, xylene, and toluene–xylene with high evaporation rates (12.28–8.37 kg/m2 h) and could effectively collect these substances with high efficiencies (81–65%) in an unmanned HNS trapping device. This prototype HNS trapping device works perfectly without human involvement, does not need electricity, and thus is suitable for fast cleanup and collection of HNSs in the ocean.
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7
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Combining Deep Learning with Single-Spectrum UV Imaging for Rapid Detection of HNSs Spills. REMOTE SENSING 2022. [DOI: 10.3390/rs14030576] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Vital transportation of hazardous and noxious substances (HNSs) by sea occasionally suffers spill incidents causing perilous mutilations to off-shore and on-shore ecology. Consequently, it is essential to monitor the spilled HNSs rapidly and mitigate the damages in time. Focusing on on-site and early processing, this paper explores the potential of deep learning and single-spectrum ultraviolet imaging (UV) for detecting HNSs spills. Images of three floating HNSs, including benzene, xylene, and palm oil, captured in different natural and artificial aquatic sites were collected. The image dataset involved UV (at 365 nm) and RGB images for training and comparative analysis of the detection system. The You Only Look Once (YOLOv3) deep learning model is modified to balance the higher accuracy and swift detection. With the MobileNetv2 backbone architecture and generalized intersection over union (GIoU) loss function, the model achieved mean IoU values of 86.57% for UV and 82.43% for RGB images. The model yielded a mean average precision (mAP) of 86.89% and 72.40% for UV and RGB images, respectively. The average speed of 57 frames per second (fps) and average detection time of 0.0119 s per image validated the swift performance of the proposed model. The modified deep learning model combined with UV imaging is considered computationally cost-effective resulting in precise detection accuracy and significantly faster detection speed.
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8
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Farea MA, Mohammed HY, Shirsat SM, Sayyad PW, Ingle NN, Al-Gahouari T, Mahadik MM, Bodkhe GA, Shirsat MD. Hazardous gases sensors based on conducting polymer composites: Review. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138703] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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9
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Combining semi-quantitative risk assessment, composite indicator and fuzzy logic for evaluation of hazardous chemical accidents. Sci Rep 2020; 10:18544. [PMID: 33122716 PMCID: PMC7596540 DOI: 10.1038/s41598-020-75583-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 09/29/2020] [Indexed: 11/08/2022] Open
Abstract
In this study, a combination of semi-quantitative risk assessment, composite indicator and fuzzy logic has been developed to identify industrial establishments and processes that represent potential environmental accidents associated with hazardous chemicals. The proposed method takes into consideration the root causes of risk probability of hazardous chemical accidents (HCAs), such as unsafe onsite storing and usage, inadequate operation training, poor safety management and analysis, equipment failure, and factors affected by the potential consequences of the accidents, including human health, water resources, and building and construction. These issues have been aggregated in a system of criteria and sub-criteria, demonstrated by a list of non-overlapping and exhaustive categorical terms. Semi-quantitative risk assessment is then applied to develop a framework for screening industrial establishments that exhibit potential HCAs. Fuzzy set theory with triangular fuzzy number deals with the uncertainty associated with the data input and reduces the influence of subjectivity and vagueness to the final results. The proposed method was tested among 77 industrial establishments located within the industrial zones of Ho Chi Minh City, Vietnam. Eighteen establishments were categorized as high HCA risk, 36 establishments were categorized as medium HCA risk, and 23 ones were of low HCA risk. The results are compatible with the practical chemical safety situation of the establishments and are consistent with expert evaluation.
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10
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Seo D, Shin S, Oh S, Lee M, Seo S. Rapid eco-toxicity analysis of hazardous and noxious substances (HNS) using morphological change detection in Dunaliella tertiolecta. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.102063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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11
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Recent trends in the development of biomass-based polymers from renewable resources and their environmental applications. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.10.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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12
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Soares J, Fernandes R, Brito D, Oliveira H, Neuparth T, Martins I, Santos MM. Environmental risk assessment of accidental marine spills: A new approach combining an online dynamic Hazardous and Noxious substances database with numerical dispersion, risk and population modelling. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 715:136801. [PMID: 32007875 DOI: 10.1016/j.scitotenv.2020.136801] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 01/16/2020] [Accepted: 01/17/2020] [Indexed: 06/10/2023]
Abstract
The foreseen rise on maritime transportation of Hazardous and Noxious Substances (HNS) increases the likelihood of accidents, leading to a higher risk of chemical spillage that can have severe ecological impacts. Considering the lack of information on HNS spills, the response to these events is less well established than those involving oil. Moreover, a paramount knowledge of the physicochemical and ecotoxicological properties of the substance involved is required for an effective environmental risk assessment and response to an HNS spill. In the present work, a new online interface, in which a dynamic HNS database feeds a chemical numerical dispersion model, was developed with the aim to improve predictions regarding the behaviour and environmental risk of HNS spills on marine ecosystems. Potential impacts to pelagic organisms were characterized by coupling model outputs with toxicity risk ratios. Furthermore, a simple population model was developed, foreseeing impacts at the ecological level. The integration of the developed tools establishes an innovative framework, which aims to improve predictions related to HNS plumes' behaviour and potential hazards to the marine environment and associated ecosystem services. Further, this new approach fosters an improved preparedness and response to coastal pollution incidents, enhancing effective decision making and management by competent authorities.
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Affiliation(s)
- J Soares
- CIMAR/CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Endocrine Disruptors and Emerging Contaminants Group, University of Porto,, Avenida General Norton de Matos S/N, 4450-208 Matosinhos, Portugal.
| | - R Fernandes
- Bentley Systems Portugal, Alameda dos Oceanos n° 63, escritório 3.1, 1990-208 Lisboa, Portugal
| | - D Brito
- Bentley Systems Portugal, Alameda dos Oceanos n° 63, escritório 3.1, 1990-208 Lisboa, Portugal
| | - H Oliveira
- CIMAR/CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Endocrine Disruptors and Emerging Contaminants Group, University of Porto,, Avenida General Norton de Matos S/N, 4450-208 Matosinhos, Portugal
| | - T Neuparth
- CIMAR/CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Endocrine Disruptors and Emerging Contaminants Group, University of Porto,, Avenida General Norton de Matos S/N, 4450-208 Matosinhos, Portugal
| | - I Martins
- CIMAR/CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Endocrine Disruptors and Emerging Contaminants Group, University of Porto,, Avenida General Norton de Matos S/N, 4450-208 Matosinhos, Portugal
| | - M M Santos
- CIMAR/CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Endocrine Disruptors and Emerging Contaminants Group, University of Porto,, Avenida General Norton de Matos S/N, 4450-208 Matosinhos, Portugal; FCUP - Department of Biology, Faculty of Sciences, University of Porto (U. Porto), Rua do Campo Alegre n° 1021/1055, 4169-007 Porto, Portugal.
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Huang H, Wang C, Liu S, Sun Z, Zhang D, Liu C, Jiang Y, Zhan S, Zhang H, Xu R. Single spectral imagery and faster R-CNN to identify hazardous and noxious substances spills. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 258:113688. [PMID: 32004855 DOI: 10.1016/j.envpol.2019.113688] [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: 07/25/2019] [Revised: 11/25/2019] [Accepted: 11/27/2019] [Indexed: 06/10/2023]
Abstract
The automatic identification (location, segmentation, and classification) by UAV- based optical imaging of spills of transparent floating Hazardous and Noxious Substances (HNS) benefits the on-site response to spill incidents, but it is also challenging. With a focus on the on-site optical imaging of HNS, this study explores the potential of single spectral imaging for HNS identification using the Faster R-CNN architecture. Images at 365 nm (narrow UV band), blue channel images (visible broadband of ∼400-600 nm), and RGB images of typical HNS (benzene, xylene, and palm oil) in different scenarios were studied with and without Faster R-CNN. Faster R-CNN was applied to locate and classify the HNS spills. The segmentation using Faster R-CNN-based methods and the original masking methods, including Otsu, Max entropy, and the local fuzzy thresholding method (LFTM), were investigated to explore the optimal wavelength and corresponding image processing method for the optical imaging of HNS. We also compared the classification and segmentation results of this study with our previously published studies on multispectral and whole spectral images. The results demonstrated that single spectral UV imaging at 365 nm combined with Faster R-CNN has great potential for the automatic identification of transparent HNS floating on the surface of the water. RGB images and images using Faster R-CNN in the blue channel are capable of HNS segmentation.
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Affiliation(s)
- Hui Huang
- Ocean College, Zhejiang University, Zhoushan, Zhejiang, 316021, China; East China Sea Environmental Monitoring Center, Shanghai, 310058, China
| | - Chao Wang
- Ocean College, Zhejiang University, Zhoushan, Zhejiang, 316021, China
| | - Shuchang Liu
- College of Science, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Zehao Sun
- Ocean College, Zhejiang University, Zhoushan, Zhejiang, 316021, China
| | - Dejun Zhang
- Ocean College, Zhejiang University, Zhoushan, Zhejiang, 316021, China
| | - Caicai Liu
- East China Sea Environmental Monitoring Center, Shanghai, 310058, China
| | - Yang Jiang
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, China
| | - Shuyue Zhan
- Ocean College, Zhejiang University, Zhoushan, Zhejiang, 316021, China.
| | - Haofei Zhang
- East China Sea Environmental Monitoring Center, Shanghai, 310058, China
| | - Ren Xu
- East China Sea Environmental Monitoring Center, Shanghai, 310058, China
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14
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Chen J, Zheng H, Wei L, Wan Z, Ren R, Li J, Li H, Bian W, Gao M, Bai Y. Factor diagnosis and future governance of dangerous goods accidents in China's ports. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 257:113582. [PMID: 31753640 DOI: 10.1016/j.envpol.2019.113582] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 11/04/2019] [Accepted: 11/04/2019] [Indexed: 06/10/2023]
Abstract
Dangerous goods are particularly hazardous, as they can be flammable, explosive, and toxic. These characteristics make them vulnerable to accidents, and such mishaps during port operations can lead to massive economic losses and even deaths. It is, therefore, necessary and important to analyze and study the dangerous goods accidents at ports, so as to identify major factors and prevent them. Formal concept analysis (FCA) is a powerful tool for rule extraction. This paper introduces FCA along with relevant documents and case studies to analyze the dangerous goods accidents at China's ports, building a concept lattice model of dangerous goods accidents at China's ports, and reduces the condition attributes to come up with three key attributes of dangerous goods accidents at China's ports: warehousing management, facilities and equipment, goods registration and extract four effective diagnostic rules for dangerous goods accidents at ports. This paper proposes corresponding governance strategies to the rules of dangerous goods accidents, which can significantly prevent and manage dangerous goods accidents at China's ports in the future. In the future, the concept scale can be introduced to study the problem that the influencing factor is multi-valued attribute so as to expand the scope of research.
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Affiliation(s)
- Jihong Chen
- College of Transport and Communications, Shanghai Maritime University, Shanghai, 201306, China.
| | - Huiying Zheng
- College of Transport and Communications, Shanghai Maritime University, Shanghai, 201306, China.
| | - Ling Wei
- School of Mathematics, Northwest University, Xi'an, 710127, PR China; Institute of Concepts, Cognition and Intelligence, Northwest University, Xi'an, 710127, China.
| | - Zheng Wan
- College of Transport and Communications, Shanghai Maritime University, Shanghai, 201306, China.
| | - Ruisi Ren
- School of Mathematics, Northwest University, Xi'an, 710127, PR China; Institute of Concepts, Cognition and Intelligence, Northwest University, Xi'an, 710127, China.
| | - Jie Li
- Department of Safety Science and Engineering, School of Ocean Science and Engineering, Shanghai Maritime University, China.
| | - Haoqiang Li
- College of Transport and Communications, Shanghai Maritime University, Shanghai, 201306, China.
| | - Wentao Bian
- College of Transport and Communications, Shanghai Maritime University, Shanghai, 201306, China.
| | - Manjia Gao
- College of Transport and Communications, Shanghai Maritime University, Shanghai, 201306, China.
| | - Yun Bai
- Center for Advanced Infrastructure and Transportation, Rutgers University, Piscataway, NJ, 08854, USA.
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15
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Jägerbrand AK, Brutemark A, Barthel Svedén J, Gren IM. A review on the environmental impacts of shipping on aquatic and nearshore ecosystems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 695:133637. [PMID: 31422318 DOI: 10.1016/j.scitotenv.2019.133637] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 06/28/2019] [Accepted: 07/26/2019] [Indexed: 06/10/2023]
Abstract
There are several environmental and ecological effects of shipping. However, these are rarely assessed in total in the scientific literature. Thus, the aim of this study was to summarize the different impacts of water-based transport on aquatic and nearshore ecosystems and to identify knowledge gaps and areas for future research. The review identified several environmental and ecological consequences within the main impact categories of water discharges, physical impacts, and air emissions. However, although quantitative data on these consequences are generally scarce the shipping contribution to acidification by SOx- and NOx-emissions has been quantified to some extent. There are several knowledge gaps regarding the ecological consequences of, for example, the increasing amount of chemicals transported on water, the spread of non-indigenous species coupled with climate change, and physical impacts such as shipping noise and artificial light. The whole plethora of environmental consequences, as well as potential synergistic effects, should be seriously considered in transport planning.
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Affiliation(s)
- Annika K Jägerbrand
- Calluna AB, Hästholmsvägen 28, SE-131 30 Nacka, Sweden; Department of Construction Engineering and Lighting Science, School of Engineering, Jönköping University, P.O. Box 1026, SE-551 11 Jönköping, Sweden.
| | | | | | - Ing-Marie Gren
- Department of Economics, Swedish University of Agricultural Sciences, Box 7013, SE-750 07 Uppsala, Sweden
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16
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Li H, Meng F, Duan W, Lin Y, Zheng Y. Biodegradation of phenol in saline or hypersaline environments by bacteria: A review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 184:109658. [PMID: 31520955 DOI: 10.1016/j.ecoenv.2019.109658] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 07/27/2019] [Accepted: 09/05/2019] [Indexed: 06/10/2023]
Abstract
With the continuous demand from industry for chemical raw materials, a large amount of high-salinity wastewater containing phenol is discharged into the aquatic environment, and the leakage of dangerous chemicals into the sea may lead to phenol pollution of the ocean. Phenol is a common chemical posing serious environmental hazard. Biodegradation is an effective, low-cost, environment-friendly method of removing phenol from water, but in hypersaline environments, traditional freshwater organisms are less efficacious. Here, at least 17 genera of bacteria from three phyla are found that can degrade phenol in different saline environments. The sources and taxonomy of halotolerant and halophilic bacteria are reviewed. Moreover, the pathway of phenol removal, kinetics of biodegradation, influencing factors, and recent treatment processes of wastewater are discussed.
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Affiliation(s)
- Hao Li
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao, 266100, China
| | - Fanping Meng
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao, 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China.
| | - Weiyan Duan
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao, 266100, China
| | - Yufei Lin
- National Marine Hazard Mitigation Service, Ministry of Natural Resource of the People's Republic of China, Beijing, 100194, China
| | - Yang Zheng
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao, 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; National Marine Hazard Mitigation Service, Ministry of Natural Resource of the People's Republic of China, Beijing, 100194, China
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17
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Ivorra L, Cruzeiro C, Chan SK, Tagulao KA, Cardoso PG. Uptake and depuration kinetics of dicofol metabolite 4,4'-dichlorobenzophenone, in the edible Asiatic clam Meretrix meretrix. CHEMOSPHERE 2019; 235:662-669. [PMID: 31276879 DOI: 10.1016/j.chemosphere.2019.06.155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 06/19/2019] [Accepted: 06/20/2019] [Indexed: 06/09/2023]
Abstract
Uptake and depuration kinetics of 4,4'-dichlorobenzophenone (main metabolite of dicofol) in the edible clam Meretrix meretrix were evaluated through a mesocosm experiment. M. meretrix was exposed to different dicofol concentrations (environmental concentration, D1 = 50 ng/L; supra-environmental concentration, D2 = 500 ng/L) for 15 days, followed by the same depuration period. To accomplish this goal, an analytical method was successfully optimized for 4,4'-DCBP using QuEChERS as extraction method with a range of concentrations 0.3-76.8 ng/g ww quantified by gas chromatography coupled to tandem mass spectrometry. Our results demonstrated different kinetics of accumulation depending on the two dicofol treatments. For D1, the uptake kinetic was best fitted using a plateau followed by one phase association kinetic model, while for D2 a one phase association kinetic model suited better. Similar bioconcentration factors were obtained for both concentrations but only animals exposed to D2, showed 4,4'-DCBP levels above the limits of quantification after 24 h exposure. These animals also showed lower uptake rate (ku) than organisms exposed to D1. During the depuration period, only organisms exposed to D1 successfully depurated after 24 h. On the other hand, although animals exposed to D2 presented higher elimination factor, they did not reach the original levels after depuration. Moreover, values detected in these clams were higher than the Maximum Residue Level (10 ng/g) established by the European legislation. This indicates that longer periods of depuration time than the ones used in this study, may be needed in order to reach safe levels for human consumption. This work also demonstrated that studies on metabolite kinetics during uptake/depuration experiments, could be a new alternative to understand the impact and metabolism of pesticides in the marine environment.
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Affiliation(s)
- Lucia Ivorra
- Institute of Science and Environment, ISE, University of Saint Joseph, SAR, Macao, China
| | - Catarina Cruzeiro
- Department of Life Sciences, CFE, Centre for Functional Ecology, University of Coimbra, Coimbra, Portugal; Helmholtz Zentrum München, German Research Centre for Environmental Health, GmbH, Research Unit Comparative Microbiome Analysis, Ingolstaedter Landstrasse 1, 85764, Neuherberg, Germany
| | - Shek Kiu Chan
- Institute of Science and Environment, ISE, University of Saint Joseph, SAR, Macao, China
| | - Karen Araño Tagulao
- Institute of Science and Environment, ISE, University of Saint Joseph, SAR, Macao, China.
| | - Patricia G Cardoso
- CIIMAR/CIMAR, Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Matosinhos, Portugal
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18
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Li F, Duan W, Du S, Meng F, Peng X, Peng L, Lin Y, Wu J, Wang G. Toxicological Assessment of Intermediates in Natural Attenuation of p-Xylene to Marine Microalgae. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2019; 103:441-446. [PMID: 31201469 DOI: 10.1007/s00128-019-02646-6] [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: 02/27/2019] [Accepted: 06/04/2019] [Indexed: 06/09/2023]
Abstract
The toxic effects of p-xylene, 4-methylbenzyl alcohol, p-methyl benzaldehyde, and p-toluic acid on two marine microalgae (Phaeodactylum tricornutum Bohlin, and Skeletonema costatum) were investigated. p-Xylene was the most toxic to Pha. tricornutum with a 96 h EC50 value of 6.76 mg L-1. Based on the 96 h EC50 values for two microalgae, the toxicity of the four chemicals, in descending order, was: p-xylene, p-methyl benzaldehyde, 4-methylbenzyl alcohol, then p-toluic acid. The results showed that the toxicity of the transformed products of p-xylene was lower than that of p-xylene.
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Affiliation(s)
- Feng Li
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao, Shandong, People's Republic of China
| | - Weiyan Duan
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao, Shandong, People's Republic of China
| | - Shuhao Du
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao, Shandong, People's Republic of China
| | - Fanping Meng
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao, Shandong, People's Republic of China.
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, Shandong, People's Republic of China.
| | - Xiaoling Peng
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao, Shandong, People's Republic of China
| | - Lihong Peng
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao, Shandong, People's Republic of China
| | - Yufei Lin
- National Marine Hazard Mitigation Service, Ministry of Natural Resources of the People'S Republic of China, Beijing, People's Republic of China
| | - Jiangyue Wu
- National Marine Hazard Mitigation Service, Ministry of Natural Resources of the People'S Republic of China, Beijing, People's Republic of China
| | - Guoshan Wang
- National Marine Hazard Mitigation Service, Ministry of Natural Resources of the People'S Republic of China, Beijing, People's Republic of China
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19
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Huang H, Liu S, Wang C, Xia K, Zhang D, Wang H, Zhan S, Huang H, He S, Liu C, Li X. On-site visualized classification of transparent hazards and noxious substances on a water surface by multispectral techniques. APPLIED OPTICS 2019; 58:4458-4466. [PMID: 31251256 DOI: 10.1364/ao.58.004458] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 05/06/2019] [Indexed: 06/09/2023]
Abstract
This paper investigated the use of spectra and multispectral images for on-site visualized classification of transparent hazards and noxious substances (HNS), such as benzene, xylene, and palm oil, floating on a water surface with the potential use for rapid classification of multiple HNS during a leak accident. Partial least-squares discrimination analysis (PLS-DA) and least-squares support vector machine (LS-SVM) models achieved a classification accuracy of 100% for spectral reflectance (325-900 nm) and multispectral image at nine wavelengths. Wavelength division and selection were applied for spectra and spectral images, respectively, to reduce the difficulty in data collection and to simplify the redundant bands. This was followed by PLS-DA and LS-SVM modeling. The LS-SVM model based on the least wavelengths (365, 410, 450, and 850 nm) of multispectral images was suggested as the most effective method for on-site visualized classification of transparent HNS on a water surface.
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20
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Floating Xylene Spill Segmentation from Ultraviolet Images via Target Enhancement. REMOTE SENSING 2019. [DOI: 10.3390/rs11091142] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Automatic colorless floating hazardous and noxious substances (HNS) spill segmentation is an emerging research topic. Xylene is one of the priority HNSs since it poses a high risk of being involved in an HNS incident. This paper presents a novel algorithm for the target enhancement of xylene spills and their segmentation in ultraviolet (UV) images. To improve the contrast between targets and backgrounds (waves, sun reflections, and shadows), we developed a global background suppression (GBS) method to remove the irrelevant objects from the background, which is followed by an adaptive target enhancement (ATE) method to enhance the target. Based on the histogram information of the processed image, we designed an automatic algorithm to calculate the optimal number of clusters, which is usually manually determined in traditional cluster segmentation methods. In addition, necessary pre-segmentation processing and post-segmentation processing were adopted in order to improve the performance. Experimental results on our UV image datasets demonstrated that the proposed method can achieve good segmentation results for chemical spills from different backgrounds, especially for images with strong waves, uneven intensities, and low contrast.
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21
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Duan W, Meng F, Peng X, Lin Y, Wang G, Wu J. Kinetic analysis and degradation mechanism for natural attenuation of xylenes under simulated marine conditions. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 168:443-449. [PMID: 30408745 DOI: 10.1016/j.ecoenv.2018.10.103] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 10/28/2018] [Accepted: 10/29/2018] [Indexed: 06/08/2023]
Abstract
Microcosm experiments were conducted to examine the attenuation of selected chemicals, i.e. m-xylene (MX), o-xylene (OX) and p-xylene (PX), under simulated marine conditions. Natural attenuation and the contribution of oxidation, photodegradation, biodegradation and volatilization to total attenuation were evaluated. The development of attenuation was in agreement with pseudo-first-order kinetics for all xylenes. The half-lives of MX, OX, and PX under optimal conditions were 0.76, 0.74 and 0.88 days, respectively. Attenuation kinetics were proposed to analyze the natural attenuation of xylenes. The leading attenuation type of MX, OX, and PX was volatilization, and the attenuation rate constants (KV) were 0.5587, 0.6733, and 0.4821 d-1, respectively. Biodegradation of OX (Kb: 0.0003 d-1) was extremely inhibited. The attenuation kinetics presented the attenuation of xylenes in microcosm. The reaction kinetics could be applied to analyze the natural attenuation of chemicals. MX and OX can be converted to one another under certain conditions. Toluene and ethylbenzene were detected for OX in the OP (oxidation and photodegradation) experiment under simulated marine conditions. 4-Methylbenzyl alcohol, p-methyl benzaldehyde and p-toluic acid, as the major intermediates, were identified during the natural attenuation of PX using GC/MS.
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Affiliation(s)
- Weiyan Duan
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao, Shandong Province, PR China
| | - Fanping Meng
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao, Shandong Province, PR China; College of Environmental Science and Engineering, Ocean University of China, Shandong Province, PR China.
| | - Xiaoling Peng
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao, Shandong Province, PR China
| | - Yufei Lin
- National Marine Hazard Mitigation Service, Ministry of Natural Resource of the People's Republic of China, Beijing, PR China
| | - Guoshan Wang
- National Marine Hazard Mitigation Service, Ministry of Natural Resource of the People's Republic of China, Beijing, PR China
| | - Jiangyue Wu
- National Marine Hazard Mitigation Service, Ministry of Natural Resource of the People's Republic of China, Beijing, PR China
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22
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Ruan Y, Dou Y, Chen J, Warren A, Li J, Lin X. Evaluation of phenol-induced ecotoxicity in two model ciliate species: Population growth dynamics and antioxidant enzyme activity. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 166:176-185. [PMID: 30269012 DOI: 10.1016/j.ecoenv.2018.09.091] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 09/08/2018] [Accepted: 09/21/2018] [Indexed: 06/08/2023]
Abstract
The application of identical exposure dosages in different species generally leads to a limited understanding of dose-response patterns because of species-specific factors. To evaluate phenol-induced ecotoxicity, antioxidant enzyme activity and population growth dynamics were compared in two model ciliates, the marine species Euplotes vannus and the freshwater species Paramecium multimicronucleatum. Dosage ranges of phenol exposure were based on tolerance limits of test ciliates as determined by their carrying capacity (K) and growth rate (r). When the exposure duration of phenol increased from 48 h to 96 h, the median effective dose (ED50) for P. multimicronucleatum decreased faster than that for E. vannus, and the ratio of the former to the latter declined from 2.75 to 0.30. When E. vannus was exposed to increasing concentrations of phenol (0-140 mg l-1), r rose initially and then dropped significantly at concentrations higher than 40 mg l-1, whereas K decreased linearly over the entire range. For P. multimicronucleatum, both r and K declined gradually over the range 0-200 mg l-1 phenol. Dose-response patterns of activities of three individual antioxidant enzymes, and the integrative index of the three enzymes, presented a biphasic (inverse U-shaped) curve at each of four durations of exposure, i.e. 12 h, 24 h, 36 h and 48 h. Cluster analyses and multidimensional scaling analyses of antioxidant enzyme activities revealed differences in the temporal succession of physiological states between the two model ciliates. In brief, combining ED50 with growth dynamic parameters is helpful for designing exposure dosages of toxicants in ecotoxicity tests.
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Affiliation(s)
- Yuanyuan Ruan
- Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, South China Normal University, Guangzhou 510631, China
| | - Yingfeng Dou
- Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, South China Normal University, Guangzhou 510631, China
| | - Jingyi Chen
- Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, South China Normal University, Guangzhou 510631, China
| | - Alan Warren
- Department of Life Sciences, Natural History Museum, Cromwell Road, London SW7 5BD, UK
| | - Jiqiu Li
- Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, South China Normal University, Guangzhou 510631, China.
| | - Xiaofeng Lin
- Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, South China Normal University, Guangzhou 510631, China
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23
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Numerical Simulation of Propagation Characteristics of Hazardous Noxious Substances Spilled from Transport Ships. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8122409] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study numerically investigates the propagation characteristics of hazardous noxious substances (HNSs) spilled from transport ships and suggests the metal model for predicting the HNS propagation velocity varied with the current velocity and HNS density. The commercial computational fluid dynamics (CFD) code ANSYS FLUENT (V. 17.2) was used for two-dimensional simulation based on the Reynolds-averaged Navier–Stokes (RANS) equation together with the standard k–ε model. The scalar transport equation was also solved to estimate the spatial and transient behaviors of HNS. The main parameters to analyze the near-field propagation characteristics of HNSs spilled from the ship were layer thickness, HNS concentration, and propagation velocity. It was found that advection becomes more dominant in propagating an HNS layer that becomes thinner as the current velocity increases. When the current velocity increased beyond a certain level (~0.75 m/s), the mixing effect made the HNS layer less dense but thicker. Consequently, lower-density HNS causes increased HNS concentrations at sea level. As the current velocity increased, the concentration distribution became homogeneous regardless of HNS density. In particular, the second-order response surface model provided for three variables on the basis of the numerical results for 15 cases with the use of the general least-squares regression method, showing a good fit. This model would be useful in estimating the propagation velocity of HNS spilled from a ship.
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24
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Peng X, Guo F, Zhang X, Shi N, Wu Y. Optimization of preparation of monolithic carbon foam from rice husk char for benzene leakage emergency. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:26046-26058. [PMID: 29968218 DOI: 10.1007/s11356-018-2640-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Accepted: 06/24/2018] [Indexed: 06/08/2023]
Abstract
In the aim of BTEX leakage emergency, monolithic carbon foam (MCF) was designed and prepared via a simple method. Rice husk char (RHC) was chosen as raw material, polyurethane sponge (PUS) was used as sacrificed template to form inner channel, and corn starch and ZnO were employed as binder and reinforcing filler, respectively. The optimized preparation parameter was determined by adopting of Taguchi experimental design method. Both MCF-RHC and MCF-CAC were made from RHC and commercial activated carbon (CAC) under the same condition, and three reported monolithic carbon adsorbents were selected for comparative study with MCFs. The surface and structural properties were characterized by XRD, SEM, and N2 adsorption/desorption isotherm analyses. XRD analysis results reveal that MCF-RHC was the composites of carbon, SiO2, and ZnO, and MCF-RHC and MCF-CAC have good potential in organic adsorption. Hierarchical structure of MCF was constructed by inner macro-channel from burning up of PUS and micro- and meso-pores from resultant carbon composite, and these inner macro-channels play a more important role in benzene rapid adsorption. Specific surface area of MCF-RHC was 465.5 m2 g-1, which included micro- and meso-pores, which mainly come from RHC during the carbonization process. Adsorption kinetics study demonstrated that the benzene equilibrium uptake of MCF-RHC and MCF-CAC was similar, and both of data well fitted the pseudo-second-order kinetic model. However, MCF-RHC has the ability to absorb benzene more quickly, which meets the demand of absorbent utilizing in benzene leakage emergency.
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Affiliation(s)
- Xiao Peng
- College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, No. 29 13th Avenue, Economic and Technologic Development Zone, Tianjin, 300457, People's Republic of China
| | - Fengnan Guo
- College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, No. 29 13th Avenue, Economic and Technologic Development Zone, Tianjin, 300457, People's Republic of China
| | - Xuan Zhang
- College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, No. 29 13th Avenue, Economic and Technologic Development Zone, Tianjin, 300457, People's Republic of China
| | - Ning Shi
- College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, No. 29 13th Avenue, Economic and Technologic Development Zone, Tianjin, 300457, People's Republic of China
| | - Yan Wu
- College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, No. 29 13th Avenue, Economic and Technologic Development Zone, Tianjin, 300457, People's Republic of China.
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25
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Gouveia V, Almeida CMR, Almeida T, Teixeira C, Mucha AP. Indigenous microbial communities along the NW Portuguese Coast: Potential for hydrocarbons degradation and relation with sediment contamination. MARINE POLLUTION BULLETIN 2018; 131:620-632. [PMID: 29886989 DOI: 10.1016/j.marpolbul.2018.04.063] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 03/12/2018] [Accepted: 04/25/2018] [Indexed: 06/08/2023]
Abstract
Hydrocarbon degradation (HD) potential by autochthonous microorganisms in the coastal sediments of the NW area of Portugal (coastal sandy beaches and estuaries of the rivers Minho and Douro) was evaluated, investigating if water and sediment contamination/characteristics influence it. Sediments were characterized for microbial abundance (by DAPI), HD microorganisms' abundance (by MPN), microbial community structure (by ARISA), hydrocarbons (by FTIR and SPME-GC-MS), hazardous and noxious substances (SPME-GC-MS) and metals (by AAS). To our knowledge, this is the first time all these pollutants, including the selected HNS, were measured simultaneously in sediments of the selected coastal area. Higher contaminants concentrations were, generally, registered in Douro samples. A clear differentiation of the microbial community structure between beaches and estuaries was observed, as well as, between Douro and Minho river estuaries. BIO-ENV analysis indicated both sediment characteristics (e.g. OM content) and contaminants presence/concentrations (e.g. tetrachloroethylene presence) affected the structure of the microbial community along the studied areas. In all the selected sites, the characterized autochthonous microbial communities showed potential for hydrocarbons degradation, with HD microorganisms being found in all collected sediments. These microorganisms can be a valuable asset to recover contaminated areas, but sediment characteristics and contaminants presence/levels need to be taken into account as they can affect their bioremediation potential and the success of their application as biotechnological tool.
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Affiliation(s)
- Vanessa Gouveia
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - C Marisa R Almeida
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal.
| | - Tânia Almeida
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Catarina Teixeira
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Ana P Mucha
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
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26
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Wang Y, Meng F, Lin Y, Duan W, Liu Q. Four types of attenuation of phenol and cresols in microcosms under simulated marine conditions: A kinetic study. CHEMOSPHERE 2017; 185:595-601. [PMID: 28719879 DOI: 10.1016/j.chemosphere.2017.07.045] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Revised: 07/05/2017] [Accepted: 07/10/2017] [Indexed: 06/07/2023]
Abstract
Phenol, o-cresol, m-cresol, and p-cresol were selected to conduct microcosm experiments to examine their attenuation under simulated marine conditions, aiming at estimating natural attenuation and the contribution of oxidation, photolysis, biodegradation, and volatilisation to total attenuation of phenol and three cresols in the marine environment. The development of attenuation in microcosms showed the relevance of the pseudo-first-order kinetic for all phenols. The half-lives of phenol, o-cresol, m-cresol, and p-cresol attenuation under optimal conditions were 7.9, 4.3, 5.3, and 4.4 d, respectively. Attenuation kinetics was proposed to analyse the natural attenuation of phenol and cresols. The leading attenuation type of phenol, o-cresol, and p-cresol was volatilisation, and the attenuation rate constants (Kv) were 0.0356, 0.0687, and 0.0710 d-1. Photolysis (Kp: 0.0584 d-1) was the major attenuation type for m-cresol. Biodegradation of phenol (Kb: 0.0021 d-1) and m-cresol (Kb: 0.0049 d-1) were extremely inhibited. The rank between the contributions of the four types of attenuation to total attenuation differed between phenol and the three cresols. The attenuation kinetics proposed in this study possibly demonstrated the attenuation of the phenol and cresols in microcosm. This new reaction kinetics can be used in the analysis of natural attenuation of chemical substances.
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Affiliation(s)
- Yuejie Wang
- Key Laboratory of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, PR China
| | - Fanping Meng
- Key Laboratory of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, PR China.
| | - Yufei Lin
- National Marine Hazard Mitigation Service, State Oceanic Administration of China, Beijing, PR China
| | - Weiyan Duan
- Key Laboratory of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, PR China
| | - Qunqun Liu
- Key Laboratory of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, PR China
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Zhang H, Duan H, Zuo J, Song M, Zhang Y, Yang B, Niu Y. Characterization of post-disaster environmental management for Hazardous Materials Incidents: Lessons learnt from the Tianjin warehouse explosion, China. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 199:21-30. [PMID: 28525808 DOI: 10.1016/j.jenvman.2017.05.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Revised: 04/06/2017] [Accepted: 05/07/2017] [Indexed: 06/07/2023]
Abstract
Hazardous Materials Incidents (HMIs) have attracted a growing public concern worldwide. The health risks and environmental implications associated with HMIs are almost invariably severe, and underscore the urgency for sound management. Hazardous Materials Explosion incidents (HMEIs) belong to a category of extremely serious HMIs. Existing studies placed focuses predominately on the promptness and efficiency of emergency responses to HMIs and HMEIs. By contrast, post-disaster environmental management has been largely overlooked. Very few studies attempted to examine the post-disaster environmental management plan particularly its effectiveness and sufficiency. In the event of the Tianjin warehouse explosion (TWE), apart from the immediate emergency response, the post-disaster environmental management systems (P-EMSs) have been reported to be effective and sufficient in dealing with the environmental concerns. Therefore, this study aims to critically investigate the P-EMSs for the TWE, and consequently to propose a framework and procedures for P-EMSs in general for HMIs, particularly for HMEIs. These findings provide a useful reference to develop P-EMSs for HMIs in the future, not only in China but also other countries.
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Affiliation(s)
- Hui Zhang
- Smart City Research Institute, College of Civil Engineering, Shenzhen University, 518060, Shenzhen, China
| | - Huabo Duan
- Smart City Research Institute, College of Civil Engineering, Shenzhen University, 518060, Shenzhen, China.
| | - Jian Zuo
- School of Architecture & Built Environment, Entrepreneurship, Commercialisation and Innovation Centre (ECIC), The University of Adelaide, SA, 5001, Australia
| | - MingWei Song
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Yukui Zhang
- South China Institute of Environmental Sciences, MEP, 510655, Guangzhou, China
| | - Bo Yang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Yongning Niu
- Smart City Research Institute, College of Civil Engineering, Shenzhen University, 518060, Shenzhen, China.
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Duan W, Meng F, Lin Y, Wang G. Toxicological effects of phenol on four marine microalgae. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2017; 52:170-176. [PMID: 28432996 DOI: 10.1016/j.etap.2017.04.006] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Revised: 04/03/2017] [Accepted: 04/06/2017] [Indexed: 06/07/2023]
Abstract
The toxic effects of phenol on four marine microalgae (Dunaliella salina, Platymonas subcordiformis, Phaeodactylum tricornutum Bohlin, and Skeletonema costatum) were evaluated. The 96h EC50 values were 72.29, 92.97, 27.32, and 27.32mgL-1, respectively, which were lower than those values of freshwater microalgae reported in the literature. During a 96-h exposure to a sub-lethal concentration of phenol (1/2 96h EC50) with green alga (D. salina) and diatom (S. costatum), reactive oxygen species (ROS) accumulation, and chlorophyll a (Chl a) content decrease were simultaneously observed in diatom cells after 48h treatment. On the contrary, other chlorophylls in both algae were unaffected. Under transmission electron microscopy (TEM), the phenol-induced ultrastructure alterations included disappearance, or shrinkage, of nucleolus and enlargement of vacuoles, which may result in programmed cell death (PCD). The increase in number of lipid droplets may be related to phenol detoxification. These results indicate that the sensitivity of marine microalgae to phenol was dependent on some biotic factors such as cell size, ROS production, and phenol degradation ability in algal cells.
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Affiliation(s)
- Weiyan Duan
- Key Laboratory for Marine Environment and Ecology of Ministry of Education, Ocean University of China, Qingdao, Shandong Province, PR China
| | - Fanping Meng
- Key Laboratory for Marine Environment and Ecology of Ministry of Education, Ocean University of China, Qingdao, Shandong Province, PR China.
| | - Yufei Lin
- National Marine Hazard Mitigation Service, State Oceanic Administration of China, Beijing, PR China
| | - Guoshan Wang
- National Marine Hazard Mitigation Service, State Oceanic Administration of China, Beijing, PR China
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Cunha I, Torres T, Oliveira H, Martins R, McGowan T, Sheahan D, Santos MM. Using early life stages of marine animals to screen the toxicity of priority hazardous and noxious substances. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:10510-10518. [PMID: 28281073 DOI: 10.1007/s11356-017-8663-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 02/20/2017] [Indexed: 06/06/2023]
Abstract
This study provides toxicity values for early life stages (ELS) of two phylogenetically distinct marine animal taxa, the sea urchin (Paracentrotus lividus), a deuterostome invertebrate, and the turbot (Scophthalmus maximus), a vertebrate (teleost), when challenged by six hazardous and noxious substances (HNS): aniline, butyl acrylate, m-cresol, cyclohexylbenzene, hexane and trichloroethylene. The aim of the study was to provide preliminary information on toxic effects of representative and relevant priority HNS to assess the risk posed by spills to marine habitats and therefore improve preparedness and the response at the operational level. Selection criteria to include each compound in the study were (1) inclusion in the HASREP (2005) list; (2) presence on the priority list established by Neuparth et al. (2011); (3) paucity of toxicological data (TOXnet and ECOTOX) for marine organisms; (4) behaviour in the water according to the categories defined by the European Behaviour classification system (GESAMP 2002), by selecting compounds with different behaviours in water; and (5) physicochemical and toxicological properties, where available, in order to anticipate the most toxic compounds. Aniline and m-cresol were the most toxic compounds with no observed apical effect concentration (NOAEC) values for sea urchin ranging between 0.01 and 0.1 mg/L, followed by butyl acrylate and cyclohexylbenzene with NOAECs ranging between 0.1 and 1.0 mg/L and trichloroethylene with NOAEC values that were in the range between 1 and 10 mg/L, reflecting their behaviour in water, mostly vapour pressure, but also solubility and log Kow. Hexane was toxic only for turbot embryos, due to its neurotoxic effects, and not for sea urchin larvae, at concentrations in the range between 1 and 10 mg/L. The concentrations tested were of the same order of magnitude for both species, and it was observed that sea urchin embryos (length of the longest arm) are more sensitive than turbot eggs larvae (hatching and cumulative mortality rates) to the HNS tested (except hexane). For this specific compound, concentrations up to 70 mg/L were tested in sea urchin larvae and no effects were observed on the length of the larvae. Both tests were found to be complementary depending on behaviour in water and toxicity target of the compounds analysed.
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Affiliation(s)
- Isabel Cunha
- Interdisciplinary Centre of Marine and Environmental Research (CIMAR/CIIMAR), University of Porto, Rua dos Bragas 289, 4050-123, Porto, Portugal.
| | - Tiago Torres
- Interdisciplinary Centre of Marine and Environmental Research (CIMAR/CIIMAR), University of Porto, Rua dos Bragas 289, 4050-123, Porto, Portugal
| | - Helena Oliveira
- Interdisciplinary Centre of Marine and Environmental Research (CIMAR/CIIMAR), University of Porto, Rua dos Bragas 289, 4050-123, Porto, Portugal
| | - Rosário Martins
- Interdisciplinary Centre of Marine and Environmental Research (CIMAR/CIIMAR), University of Porto, Rua dos Bragas 289, 4050-123, Porto, Portugal
- Health and Environmental Research Center (CISA), Superior School of Health Technology of Porto, Polytechnic Institute of Porto, Porto, Portugal
| | - Thomas McGowan
- Centre for Environment, Fisheries and Aquaculture Science (CEFAS), Lowestoft Laboratory, Lowestoft, UK
| | - David Sheahan
- Centre for Environment, Fisheries and Aquaculture Science (CEFAS), Lowestoft Laboratory, Lowestoft, UK
| | - Miguel Machado Santos
- Interdisciplinary Centre of Marine and Environmental Research (CIMAR/CIIMAR), University of Porto, Rua dos Bragas 289, 4050-123, Porto, Portugal.
- Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal.
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Tornero V, Hanke G. Chemical contaminants entering the marine environment from sea-based sources: A review with a focus on European seas. MARINE POLLUTION BULLETIN 2016; 112:17-38. [PMID: 27444857 DOI: 10.1016/j.marpolbul.2016.06.091] [Citation(s) in RCA: 142] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 06/22/2016] [Accepted: 06/27/2016] [Indexed: 05/02/2023]
Abstract
Anthropogenic contaminants reach the marine environment mostly directly from land-based sources, but there are cases in which they are emitted or re-mobilized in the marine environment itself. This paper reviews the literature, with a predominant focus on the European environment, to compile a list of contaminants potentially released into the sea from sea-based sources and provide an overview of their consideration under existing EU regulatory frameworks. The resulting list contains 276 substances and for some of them (22 antifouling biocides, 32 aquaculture medicinal products and 34 warfare agents) concentrations and toxicity data are additionally provided. The EU Marine Strategy Framework Directive Descriptor 8, together with the Water Framework Directive and the Regional Sea Conventions, provides the provisions against pollution of marine waters by chemical substances. This literature review should inform about the current state of knowledge regarding marine contaminant sources and provide support for setting-up of monitoring approaches, including hotspots screening.
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Affiliation(s)
- Victoria Tornero
- European Commission, Joint Research Centre (JRC), Institute for Environment and Sustainability (IES), Water Resources Unit, Enrico Fermi 2749, 21027 Ispra, Italy.
| | - Georg Hanke
- European Commission, Joint Research Centre (JRC), Institute for Environment and Sustainability (IES), Water Resources Unit, Enrico Fermi 2749, 21027 Ispra, Italy
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Cunha I, Oliveira H, Neuparth T, Torres T, Santos MM. Fate, behaviour and weathering of priority HNS in the marine environment: An online tool. MARINE POLLUTION BULLETIN 2016; 111:330-338. [PMID: 27389461 DOI: 10.1016/j.marpolbul.2016.06.090] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 06/22/2016] [Accepted: 06/27/2016] [Indexed: 06/06/2023]
Abstract
Literature data and data obtained with modelling tools were compiled to derive the physicochemical behaviour of 24 priority Hazardous and Noxious Substances (HNS), as a proxy to improve environmental, public health and political issues in relation to HNS spills. Parameters that rule the HNS behaviour in water and those that determine their distribution and persistence in the environment, such as fugacity, physicochemical degradation, biodegradation, bioaccumulation/biotransformation and aquatic toxicity, were selected. Data systematized and produced in the frame of the Arcopol Platform project was made available through a public database (http://www.ciimar.up.pt/hns/substances.php). This tool is expected to assist stakeholders involved in HNS spills preparedness and response, policy makers and legislators, as well as to contribute to a current picture of the scientific knowledge on the fate, behaviour, weathering and toxicity of priority HNS, being essential to support future improvements in maritime safety and coastal pollution response before, during and after spill incidents.
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Affiliation(s)
- Isabel Cunha
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal
| | - Helena Oliveira
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal.
| | - Teresa Neuparth
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal
| | - Tiago Torres
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal
| | - Miguel Machado Santos
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal; FCUP, Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal.
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32
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Dooly G, Omerdic E, Coleman J, Miller L, Kaknjo A, Hayes J, Braga J, Ferreira F, Conlon H, Barry H, Marcos-Olaya J, Tuohy T, Sousa J, Toal D. Unmanned vehicles for maritime spill response case study: Exercise Cathach. MARINE POLLUTION BULLETIN 2016; 110:528-538. [PMID: 27339741 DOI: 10.1016/j.marpolbul.2016.02.072] [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: 10/12/2015] [Revised: 02/22/2016] [Accepted: 02/26/2016] [Indexed: 06/06/2023]
Abstract
This paper deals with two aspects, namely a historical analysis of the use of unmanned vehicles (UAVs ROVs, AUVs) in maritime spill incidents and a detailed description of a multi-agency oil and HNS incident response exercise involving the integration and analysis of unmanned vehicles environmental sensing equipment. The exercise was a first in terms of the level of robotic systems deployed to assist in survey, surveillance and inspection roles for oil spills and harmful and noxious substances.
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Affiliation(s)
- Gerard Dooly
- Mobile & Marine Robotics Research Centre, University of Limerick, Limerick, Ireland.
| | - Edin Omerdic
- Mobile & Marine Robotics Research Centre, University of Limerick, Limerick, Ireland
| | - Joseph Coleman
- Mobile & Marine Robotics Research Centre, University of Limerick, Limerick, Ireland
| | - Liam Miller
- Mobile & Marine Robotics Research Centre, University of Limerick, Limerick, Ireland
| | - Admir Kaknjo
- Mobile & Marine Robotics Research Centre, University of Limerick, Limerick, Ireland
| | - James Hayes
- Mobile & Marine Robotics Research Centre, University of Limerick, Limerick, Ireland
| | - Jóse Braga
- Underwater Systems and Technology Laboratory, University of Porto, Porto, Portugal
| | - Filipe Ferreira
- Underwater Systems and Technology Laboratory, University of Porto, Porto, Portugal
| | - Hugh Conlon
- Shannon Foynes Port Company, Harbour Office, Foynes, Co. Limerick, Ireland
| | - Hugh Barry
- Irish Coast Guard, Department of Transport, Tourism and Sport, Dublin, Ireland
| | - Jesús Marcos-Olaya
- Tecnalia Foundation, Technology and Research Centre, San Sebastian, Spain
| | - Thomas Tuohy
- National Maritime College of Ireland, Ringaskiddy, Co. Cork, Ireland
| | - João Sousa
- Underwater Systems and Technology Laboratory, University of Porto, Porto, Portugal
| | - Dan Toal
- Mobile & Marine Robotics Research Centre, University of Limerick, Limerick, Ireland
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34
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Fegade SL. Comment on ‘Novel biodegradable polyurethanes reinforced with green nanofibers for applications in tissue engineering. Synthesis and characterization’. CAN J CHEM ENG 2015. [DOI: 10.1002/cjce.22250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Swapnil L. Fegade
- Ohio Coal Research Center, Russ College of Engineering and Technology; Ohio University; Athens OH 45701 USA
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35
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Galadima A, Muraza O. Catalytic Upgrading of Bioethanol to Fuel Grade Biobutanol: A Review. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b01443] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ahmad Galadima
- Center of Research Excellence in Nanotechnology, ‡Chemical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Oki Muraza
- Center of Research Excellence in Nanotechnology, ‡Chemical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
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