Article
Environmental Sciences
S. Pulley, A. L. Collins
Summary: Measuring sediment colour using an office document scanner is a quick and cost-effective alternative method for tracing sediment sources. Treatment of samples with hydrogen peroxide can potentially improve source discrimination, leading to more precise management efforts.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Matteo Giardino, Valentina Balestra, Davide Janner, Rossana Bellopede
Summary: Microplastics are small solid polymers with dimensions less than 5 mm that contaminate the environment. Visual count is commonly used for their detection and quantification, but it is time-consuming and prone to errors. To address this issue, a semi-automatic image processing method was developed for quantifying and measuring microplastics on filter membrane substrates, providing accurate and fast results.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Melanie Ourgaud, Nam Ngoc Phuong, Laure Papillon, Christos Panagiotopoulos, Francois Galgani, Natascha Schmidt, Vincent Fauvelle, Christophe Brach-Papa, Richard Sempere
Summary: In this study, the performance of the newly developed laser direct infrared (LDIR) technique for marine microplastics (MPs) analysis was evaluated for the first time. An optimized protocol using an 8 μm porosity polycarbonate filter placed on a Kevley slide was proposed, enabling preconcentration and efficient quantification of MPs. The technique showed high recoveries and negligible blank values for particle sizes ranging from 200 to 500 μm. Application of this technique to Mediterranean marine samples indicated consistent results with the literature, identifying PVC, PE, and PP as the predominant polymer types.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
K. B. Parga Martinez, V. H. da Silva, T. J. Andersen, N. R. Posth, J. Strand
Summary: This study proposes an improved method for separating and quantifying microplastics in sediment, which minimizes particle loss by reducing intermediate steps. The results demonstrate that this sequential extraction method effectively retains particles of different sizes, with a lower risk of loss for smaller particles.
MARINE POLLUTION BULLETIN
(2023)
Editorial Material
Multidisciplinary Sciences
Hector Lopez-Rios, Monica Olvera de la Cruz
Summary: A study has demonstrated that light-sensitive particles can stratify in a solution, altering the color of the entire suspension. This system creates a color-changing ink that has the potential to make electronic paper a viable technology.
Article
Chemistry, Multidisciplinary
Junli Guo, Huijie Xu, Junjian Zhao, Zhida Gao, Zeng-Qiang Wu, Yan-Yan Song
Summary: Chirality, an intriguing feature of life, is associated with significant biological processes. This study presents a sensitive enantiomer identification device based on TiO2 nanochannels with cascade recognition-quantification zones. The device utilizes beta-cyclodextrin for selective recognition and CuMOFs for quantification of enantiomers passing through the nanochannels. The results demonstrate improved identification signal through in situ reactions in the quantification zone.
Review
Environmental Sciences
Fleurine Akoueson, Chaza Chbib, Sebastien Monchy, Ika Paul-Pont, Perine Doyen, Alexandre Dehaut, Guillaume Duflos
Summary: Analysis of organic plastic additives associated with plastic polymers is a growing field, with multi-step pyrolysis coupled with gas chromatography mass spectrometer providing a new method for identification and semi-quantification of OPAs. Various methods have been described in current studies, but there is no gold standard method yet. Future developments should focus on better characterizing the limits of the methods to determine which OPAs can be quantified and in which polymers this is feasible.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
K. M. Haider, F. Lafouge, Y. Carpentier, S. Houot, D. Petitprez, B. Loubet, C. Focsa, R. Ciuraru
Summary: This experimental study investigated the VOC emissions from SS samples taken from a wastewater treatment plant in France. The study found that the SS samples emitted a large spectrum of VOCs, with the highest emissions in SS 60%. The anaerobic digestion and dewatering process decreased the emissions of sulphuric compounds, while aromatic compounds and indoles were emitted significantly from UDSS. The study provides an accurate inventory reference for VOC emissions from SS samples and highlights the impacts of treatment on VOC emission characteristics.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Analytical
Yan Liu, Pingping Fan, Huimin Qiu, Xueying Li, Guangli Hou
Summary: Visible and near infrared spectroscopy has been widely used to determine organic carbon in soils or sediments. However, there is a lack of method to evaluate the spectral analysis. In this study, a method to evaluate the spectral analysis of SOC was proposed and three spectral models were established using different spectrometers. The results showed that the performance of the spectrometers differed, with the low-cost QEPro performing as well as the high-cost FieldSpec 4.
Article
Environmental Sciences
Michaela A. Cashman, Troy Langknecht, Dounia El Khatib, Robert M. Burgess, Thomas B. Boving, Sandra Robinson, Kay T. Ho
Summary: A hybridized method was developed for extracting microplastics from sediments, with cellulose acetate fibers identified as the most abundant type found in Narragansett Bay, Rhode Island, USA. These results provide some of the first data on microplastics in Rhode Island sediments.
MARINE POLLUTION BULLETIN
(2022)
Article
Engineering, Civil
Kang Zhou, Lun-Hai Zhi, Jing-Feng Wang, Xu Hong, Kang Xu, Zhen-Ru Shu
Summary: This paper presents a new stochastic subspace modal identification method that considers the uncertainty quantification of structural modal parameters. The detailed procedure of the proposed approach is demonstrated using a 4-degree-of-freedom simulation model. Numerical simulations on the 4DOF model verify the accuracy and effectiveness of the proposed method for structural responses with high-level noise and non-stationary properties. Field measurements on a 260-m-high supertall building further validate the applicability and effectiveness of the developed modal identification method. The objective of this study is to provide an efficient instrument for accurate modal identification of civil structures.
Article
Environmental Sciences
Carlos Edo, Francisca Fernandez-Pinas, Roberto Rosal
Summary: Composted Organic Fraction of Municipal Solid Waste (OFMSW) is commonly used in agriculture as a source of organic matter and nutrients. In this study, the plastic impurities in the refined compost from five different OFMSW facilities were investigated. The results showed that smaller plants with door-to-door collection systems produced compost with less plastic contamination, while compost from large facilities fed by street bin collection had higher plastic contents. No residual debris from compostable bioplastics was found in any of the samples. These findings suggest that the use of compostable polymers and the implementation of door-to-door collection systems can help reduce plastic impurities in OFMSW compost.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Ecology
Stephen G. Chastain, Karen E. Kohfeld, Marlow G. Pellatt, Carolina Olid, Maija Gailis
Summary: Tidal salt marshes are highly efficient carbon sinks, but their potential for mitigating global warming remains uncertain due to inadequate sampling, inaccurate area estimations, and inappropriate dating methods. This study provides the first estimates of organic carbon storage and accumulation rates in salt marshes along the Pacific coast of Canada, revealing relatively low carbon stocks but higher accumulation rates compared to global averages, with significant variations between high and low marsh habitats.
Article
Food Science & Technology
Andreja Urbanek Krajnc, Jan Senekovic, Silvia Cappellozza, Maja Mikulic-Petkovsek
Summary: This study analyzed the color, taste, and chemical composition of mulberry soroses. The main sugars in mulberries were glucose and fructose, while the main organic acids were citric acid, malic acid, fumaric acid, and tartaric acid. The predominant phenolic compounds were chlorogenic acid and other phenolic acids. The main anthocyanins were cyanidin-3-glucoside and cyanidin-3-rutinoside. Different color types of mulberries exhibited different chemical characteristics.
Article
Environmental Sciences
Anette T. Mensah, Sebastien Allard, Florence Berne, Sylvie Soreau, Herve Gallard
Summary: In this study, a Membrane Introduction Mass Spectrometry (MIMS) analytical method was developed to differentiate and monitor brominated trihalamines in synthetic and natural chlorinated seawater. The results showed that MIMS was able to unambiguously differentiate and monitor brominated trihalamines in chlorinated seawater, which was not possible by using UV measurement, titration and colorimetric methods.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Francis Gbogbo, Samuel D. Otoo
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2015)
Article
Environmental Sciences
Francis Gbogbo, Samuel D. Otoo, Robert Quaye Huago, Obed Asomaning
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2017)
Article
Ornithology
Carlos Congrains, Antonio F. Carvalho, Elder A. Miranda, Graeme S. Cumming, Dominic A. W. Henry, Shiiwua A. Manu, Jacinta Abalaka, Cristiano D. Rocha, Moussa S. Diop, Joaozinho Sa, Hamilton Monteiro, Lars H. Holbech, Francis Gbogbo, Silvia N. Del Lama
JOURNAL OF AVIAN BIOLOGY
(2016)
Article
Environmental Sciences
Francis Gbogbo, Samuel Darlynton Otoo, Obed Asomaning, Robert Quaye Huago
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2017)
Article
Public, Environmental & Occupational Health
F. Gbogbo, M. O. Kyei
ZOONOSES AND PUBLIC HEALTH
(2017)
Article
Multidisciplinary Sciences
Francis Gbogbo, Anna Arthur-Yartel, Josephine A. Bondzie, Winfred-Peck Dorleku, Stephen Dadzie, Bethel Kwansa-Bentum, Julliet Ewool, Maxwell K. Billah, Angela M. Lamptey
Article
Ecology
Francis Gbogbo, William Oduro, Samuel Kingsley Oppong
AFRICAN JOURNAL OF ECOLOGY
(2010)
Article
Ornithology
Francis Gbogbo, Gideon Kwarteng Acheampong, John-Mark Yaw Atiemo, Quist Elorm Crepindale
Article
Biodiversity Conservation
Timothy K. Aikins, Francis Gbogbo, Erasmus H. Owusu
Article
Biodiversity Conservation
Francis Gbogbo, Joseph Kobina Daniels
HUMAN DIMENSIONS OF WILDLIFE
(2019)
Article
Biochemistry & Molecular Biology
Francis Gbogbo, Jacinta E. Rainhill, Samuel S. Koranteng, Erasmus H. Owusu, Winfred-Peck Dorleku
BIOLOGICAL TRACE ELEMENT RESEARCH
(2020)
Article
Multidisciplinary Sciences
Emmanuel R. Blankson, Patricia Nakie Tetteh, Prince Oppong, Francis Gbogbo
Summary: This study revealed the widespread occurrence of microplastics in water, sediment, Bagrid Catfish, and Black-chinned Tilapia from the urban riverine system of Densu River in Ghana. The stagnant water system of the Dam promoted the floating of larger-sized microplastics, while the flowing waters of the Delta did not show any selectivity in the deposition of microplastics. The number of microplastics ingested by the two fish species studied was lower compared to marine fish species in coastal Ghana.
Article
Ecology
Francis Gbogbo, Kwame Tabiri, Musah Yahaya
INTERNATIONAL JOURNAL OF ECOLOGY & DEVELOPMENT
(2017)
Article
Economics
F. Gbogbo, H. Nunoo
INTERNATIONAL JOURNAL OF ECOLOGICAL ECONOMICS & STATISTICS
(2015)