Article
Environmental Sciences
Renfei Li, Beidou Xi, Wenbing Tan, Ying Yuan
Summary: Microplastics added to soils in different regions of China significantly alter the composition of soil organic matter, with a more pronounced effect in lower latitudes. The impact of microplastics on soil organic matter is long-lasting under long-term treatment. Additionally, nutrient availability and latitude-related climatic variables are associated with the degree of microplastic input on soil organic matter.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Yongyuan Yang, Chenjia Shao, Yaping Guo, Ze Liu, Kristof Demeestere, Stijn Van Hulle
Summary: The study demonstrated the potential of a one-stage partial nitrification-Anammox process (PNA) to effectively remove nitrogen and organics from leachate, with up to 96% of total nitrogen and 43% of COD being removed. Fluorescence analysis revealed insights into the dynamics of influent fluorophores, seasonal variations, and the preferential removal of protein-like compounds. Oxygen supply was found to promote the degradation of protein-like compounds, with potential implications for aerobic oxidation pathways. Additionally, fluorescence was suggested as a potential indicator for biodegradable organics, showing strong correlations with biodegradable chemical oxidation demand (BCOD).
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Applied
Beatriz Quintanilla-Casas, Asmund Rinnan, Agusti Romero, Francesc Guardiola, Alba Tres, Stefania Vichi, Rasmus Bro
Summary: This study explored the use of excitation-emission fluorescence spectroscopy (EEFS) to predict the bitterness and pungency of virgin olive oil. The results showed that EEFS can be used as a screening tool to support sensory evaluation, as it accurately predicts the bitterness and pungency of virgin olive oil.
Article
Environmental Sciences
Junzhuo Liu, Haiying Lu, Lirong Wu, Philip G. Kerr, Yonghong Wu
Summary: This study revealed the interactions between DOM and periphytic biofilms and their effects on changes in bioactive phosphorus fractions, providing practical information for designing periphytic biofilm based biofertilizers from the perspective of soil DOM.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Ronan Guillossou, Julien Le Roux, Angelique Goffin, Romain Mailler, Gilles Varrault, Emmanuelle Vulliet, Catherine Morlay, Fabrice Nauleau, Sabrina Guerin, Vincent Rocher, Johnny Gasperi
Summary: This study investigated the potential of fluorescence spectroscopy in monitoring the removal of organic micropollutants (OMPs) by activated carbon (AC) adsorption in industrial scale wastewater treatment. Different operational conditions and physico-chemical properties of OMPs affected the removal efficiency. Positive correlations were found between fluorescence indexes and OMP removal, with higher correlation coefficients compared to UV254, indicating the promising application of fluorescence spectroscopy.
Article
Environmental Sciences
Shihao Huang, Xiaoyu Zhu, Jingwan Fang, Xue Zhang, Haojun Zhang, Zhen Zhang, Xiangwei Wu, Xiaomin Zhu
Summary: Biochar generally alters the composition of soil dissolved organic matter (DOM), playing a crucial role in soil elemental cycling. However, little is known about the impact of biochar on soil DOM composition under warming conditions. To address this knowledge gap, we conducted a warming incubation experiment to investigate the influence of biochar with different pyrolysis temperatures and feedstock types on soil DOM components composition. Our results revealed that biochar shifted soil DOM composition and enhanced soil humification, with the effects being dependent on pyrolysis temperature. The impact of biochar on soil microbial processing and its relationship with warming also varied with pyrolysis temperature. Medium-temperature biochar was found to be more effective in promoting soil humification by facilitating the transformation of protein-like components into humic-like components. The composition of soil DOM showed a rapid response to warming, but long-term incubation may attenuate the effects of warming on DOM composition. Our study highlights the essential role of biochar in enhancing soil humification and emphasizes the vulnerability of biochar for soil carbon sequestration under warming conditions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Agronomy
Rongqin Zhang, Ming Li, Xiaodong Gao, Yumin Duan, Yaohui Cai, Huike Li, Xining Zhao, Yanping Wang
Summary: This study determined the dynamics of dissolved organic matter (DOM) in agroecosystems using fluorescence technology. The results showed that inter-planting time and soil depth had significant impacts on DOM content and component accumulation. Inter-planting with white clover improved the accumulation of macro-molecular humic-like DOM.
Article
Engineering, Environmental
Binessi Edouard Ifon, Claude Kiki, Kayode Hassan Lasisi, Fidele Suanon, Bob Adyari, Valentin Wotto, Chang-Ping Yu, Anyi Hu
Summary: The study found that xenobiotic compounds have significant impacts on the compositional variation of dissolved organic matter (DOM) in aquatic environments, especially in anthropogenically-impacted water bodies.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Christin Wilske, Peter Herzsprung, Oliver J. Lechtenfeld, Norbert Kamjunke, Jurgen W. Einax, Wolf von Tumpling
Summary: Long-term changes in dissolved organic matter (DOM) quality, particularly in humic-rich raw waters, can significantly impact drinking-water processing. Seasonal variations in DOM quality in standing waters were investigated in a German reservoir using Fourier-transform ion cyclotron resonance mass spectrometry (FTICR MS) and 2D fluorescence. The study revealed that some components of DOM are easily photo-degradable and may act as coagulants in flocculation processes, while others may serve as potential precursors for disinfection byproducts.
Article
Chemistry, Applied
Monica Palomino-Vasco, Maria Isabel Acedo-Valenzuela, Maria Isabel Rodriguez-Caceres, Nielene Mora-Diez
Summary: Wine samples were analyzed using a UHPLC-FD method to determine their biogenic amines and amino acids profile, with tyrosine identified as the most influential compound. A new method for tyrosine determination through excitation-emission matrices was proposed, and its accuracy was verified with an Elliptical Joint Confidence Region test. This method was used to monitor the winemaking process, providing a faster and cheaper way to track the process.
Article
Engineering, Environmental
Lingfang Fu, Liying Bin, Zhaobo Luo, Zehong Huang, Ping Li, Shaosong Huang, Dieudonne Nyobe, Fenglian Fu, Bing Tang
Summary: Spectroscopic parameters can be used to predict the change in toxicity caused by polar organic pollutants in industrial wastewater. The study examines the spectral changes and toxicity of treated textile wastewater using four commonly-used solid-phase extraction cartridges. Non-target screening results indicate source differences in organic micropollutants, which are related to the spectral features and spectral variations of the wastewater after solid-phase extraction.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Shuo Chen, YingXun Du, Parnab Das, Alexander F. Lamore, Natasha T. Dimova, Mark Elliott, Eben North Broadbent, Jesse Alan Roebuck, Rudolf Jaffe, YueHan Lu
Summary: Agricultural land use has a significant impact on the quality and quantity of dissolved organic matter (DOM) exported from terrestrial to aquatic ecosystems. Through increasing DOC export and changing the composition of DOM pools, agricultural land use alters stream water DOM. The structural equation modeling approach helps in understanding the complex interactions between agricultural activities, hydroclimatic drivers, and stream water DOM.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Homin Kye, Kiho Kim, Youmi Jung, Yirga Weldu Abrha, Seong-Nam Nam, Il-hwan Choi, Joon-Wun Kang, Yeojoon Yoon
Summary: The characteristics of marine dissolved organic matter vary spatially and seasonally, affecting oxidation processes, especially ozonation. Characterizing marine dissolved organic matter can help improve the effectiveness of oxidation processes.
Article
Engineering, Marine
Timoci Koliyavu, Chloe Martias, Awnesh Singh, Stephane Mounier, Philippe Gerard, Cecile Dupouy
Summary: Heavy rain events were found to impact the biogeochemical outflows and ecosystem health in the coastal waters of small Pacific Islands. Analysis revealed higher values of most components (along with most tested variables) at the southwest coast during the wet season, consistent with surface currents outflow. Additionally, the positive correlation of dissolved organic carbon (DOC) with nutrients suggests the utilization of DOM as an energy source.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Environmental Sciences
M. D. Perez-Murcia, E. Martinez-Sabater, M. A. Domene, A. Gonzalez-Cespedes, M. A. Bustamante, F. C. Marhuenda-Egea, X. Barber, D. B. Lopez-Lluch, R. Moral
Summary: The study found that the degradation of peptides and proteins during composting can affect the biodegradation of remaining organic matter, while thermogravimetric analysis revealed that more recalcitrant compounds become predominant as the composting process progresses.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Ibrahim EL-Nahhal, Roland Redon, Michel Raynaud, Yasser EL-Nahhal, Stephane Mounier
Summary: This study investigated the impact of suspended particulate organic matter on fluorescence signal of mixtures of different water types using fluorescence spectroscopy and multilinear regression. The results showed that the presence of SPOM affected the fluorescence signal of DOM and the parameters of the MLR model, with effluent wastewater SPOM being the most resistant to photodegradation. The developed models can be used to predict the fluorescence signal of anthropogenic effluent DOM during transport in river systems to coastal zones.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Spectroscopy
Carla Pereira de Morais, Gustavo Nicolodelli, Milene Corso Mitsuyuki, Stephane Mounier, Debora Marcondes Bastos Pereira Milori
Summary: In this study, experimental parameters were optimized for multi-element analysis of river sediment samples using design of experiments (DOE), demonstrating the efficiency of DOE in optimizing key parameters for sediment analysis by LIBS.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2021)
Article
Engineering, Marine
Timoci Koliyavu, Chloe Martias, Awnesh Singh, Stephane Mounier, Philippe Gerard, Cecile Dupouy
Summary: Heavy rain events were found to impact the biogeochemical outflows and ecosystem health in the coastal waters of small Pacific Islands. Analysis revealed higher values of most components (along with most tested variables) at the southwest coast during the wet season, consistent with surface currents outflow. Additionally, the positive correlation of dissolved organic carbon (DOC) with nutrients suggests the utilization of DOM as an energy source.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Automation & Control Systems
Isaac Wilfried Sanou, Roland Redon, Xavier Luciani, Stephane Mounier
Summary: This article describes three online NN-CPD algorithms based on sparse dictionary learning for tracking chemical components in water. The methods take into account unknown factors and the variation of tensor rank, and utilize previous information to decompose upcoming new tensors. In addition, real-time acquisition of fluorescence data in a semi-controlled environment is also achieved in this study.
CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS
(2022)
Article
Environmental Sciences
Kahina Djaoudi, Javier Angel. Tesan Onrubia, Amine Boukra, Lucas Guesnay, Aurelie Portas, Raphaelle Barry-Martinet, Bernard Angeletti, Stephane Mounier, Veronique Lenoble, Jean-Francois Briand
Summary: This study reveals the influence of copper levels in seawater on the biofilms and metal adsorption on microplastics. The research found that copper-enriched seawater can shape biofilm communities, with diatoms playing a crucial role. The biofilms formed at the most contaminated site exhibited higher metal accumulation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Optics
Murillo Cruz Matos, Amanda Maria Tadini, Fernando Rodrigues da Conceicao, Amilcar Machulek Junior, Carlos Renato Menegatti, Stephane Mounier, Anderson Rodrigues Lima Caires, Gustavo Nicolodelli
Summary: This study evaluated the potential application of fluorescence spectroscopy in monitoring dissolved organic matter (DOM) in slaughterhouse wastewater. The results showed that fluorescence analysis can effectively identify proteins, chlorophylls, and humic substances in the wastewater. It also confirmed that the industrial effluent did not impact the quality of the receiving water body.
Article
Engineering, Environmental
Aleksandar I. Goranov, Amanda M. Tadini, Ladislau Martin-Neto, Alberto C. C. Bernardi, Patricia P. A. Oliveira, Jose R. M. Pezzopane, Debora M. B. P. Milori, Stephane Mounier, Patrick G. Hatcher
Summary: Soil organic matter plays an important role in the global carbon and nitrogen cycles. Different sample preparation techniques for characterizing soil organic matter have been compared, and it was found that the analysis window of negative-mode ESI-FT-ICR-MS can be biased towards different groups of molecules. It was also observed that soil organic matter from soils and aquatic environments behave differently.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Biochemical Research Methods
Vinicius S. Santos, Bernardo R. Moura, Gustavo Metzker, Marinonio L. Cornelio, Odair P. Ferreira, Stephane J. L. Mounier, Houssam Hajjoul, Mauricio Boscolo, Marcia C. Bisinoti, Altair B. Moreira
Summary: This study investigates the enhancement of fluorescence intensity due to the interaction of a humic-like substance (HLS 1%) extracted from process water and Cd(II) ions. The results suggest a photoinduced charge transfer between Cd(II) ions and carboxylic acid groups in HLS 1%, leading to an increase in fluorescence intensity and lifetime.
JOURNAL OF FLUORESCENCE
(2022)
Article
Environmental Sciences
Nicolas Layglon, Veronique Lenoble, Louis Longo, Sebastien D'Onofrio, Stephane Mounier, Jean-Ulrich Mullot, Davide Sartori, Dario Omanovic, Cedric Garnier, Benjamin Misson
Summary: This study compares the kinetics of cadmium remobilization and the amplitude of its transfers with different marine sediments. The results show that the process of cadmium re-dissolution is highly reproducible. The intensity of sediment resuspension impacts the amplitude of cadmium remobilization, potentially exceeding the maximum allowable cadmium concentration set by the European Union Water Framework Directive.
MARINE POLLUTION BULLETIN
(2022)
Article
Plant Sciences
Flavia Dory, Laurent Cavalli, Evelyne Franquet, Stephane Mounier, Patrick Hohener, Benjamin Misson, Mathieu Martin, Quentin Arnault, Thierry Tatoni, Celine Bertrand
Summary: This study analyzed the physical, chemical, and biological data of a high-altitude oligotrophic lake during different periods of the year and found seasonal shifts in the relationship between dissolved organic matter properties and plankton community traits. The research suggests that climate change will alter the control exerted by phytoplankton over bacterioplankton in high-altitude lakes.
JOURNAL OF ECOLOGY
(2023)
Article
Environmental Sciences
Carla Pereira De Morais, Diego Victor Babos, Vinicius Camara Costa, Jordan Brizi Neris, Gustavo Nicolodelli, Milene Corso Mitsuyuki, Frederico Fabio Mauad, Stephane Mounier, Debora Marcondes Bastos Pereira Milori
Summary: Double pulse laser-induced breakdown spectroscopy (DP LIBS) has been studied for the quantitative analysis of trace elements in sediments. Different spectral treatments and calibration strategies were investigated to improve the accuracy of determinations. The developed models showed satisfactory sensitivity and precision for the quantification of these potentially toxic elements, allowing for a partial ecological risk assessment of the sediments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Geochemistry & Geophysics
Amanda M. Tadini, Gustavo Nicolodelli, Houssam Hajjoul, DeboraM. B. P. Milori, Stephane Mounier
Summary: This study evaluated the molecular properties of humic and fulvic acid from Amazon soil and found that the humification index is dependent on fluorophores' ratio in soils with and without Cu(II) ions. Results also showed the presence of static quenching and suggested that fluorescence suppression alters the molecular properties of humic fractions with the addition of Cu(II) ions.
APPLIED GEOCHEMISTRY
(2022)
Article
Geochemistry & Geophysics
Jose L. Clabel Huaman, Amanda Maria Tadini, Giorgio Saverio Senesi, Stephane Mounier, Debora M. B. P. Milori, Gustavo Nicolodelli
Summary: This study investigated the elemental and molecular composition of Amazon soil profiles using laser-induced breakdown spectroscopy (LIBS), Raman spectroscopy, and fluorescence spectroscopy. LIBS detected emission lines from various elements, while fluorescence analysis confirmed that carbon mainly accumulated in the transition horizon as humified organic matter. Raman peaks at 465 cm(-1) and 800 cm(-1) corresponded to stretching and bending modes of Si-O and Si-OH bonds, respectively. The combined use of these spectroscopic techniques proved to be a promising approach for studying Amazon soils.
Article
Environmental Sciences
Gael Durrieu, Nicolas Layglon, Sebastien D'Onofrio, Benjamin Oursel, Dario Omanovic, Cedric Garnier, Stephane Mounier
Summary: This study examines the input of trace elements from a small urban river in Toulon, France during both base flow and flood events. The findings indicate that flood events lead to an increase in dissolved and particulate trace element concentrations, as well as higher pollutant loading.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
