Article
Environmental Sciences
Zhenrui Zhang, Shaoda Liu, Xilong Wang, Shurui Huang, Ke Sun, Xinghui Xia
Summary: Humic substances (HSs) significantly influence the transport and bioavailability of hydrophobic organic compounds (HOCs) in soils. This study investigated the sorption behavior of HOCs by different HS fractions in soils from different climatic zones. The results showed that HSs from colder climatic zones exhibited higher sorption affinity and different compositions compared to those from warmer climatic zones. The findings highlights the importance of considering the sorption differences of HOCs to HSs among different climatic zones in predicting HOC fates and bioavailability in soils.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Environmental
Hang Li, Garrett McKay
Summary: The reducibility of DOM by sodium borohydride varied significantly among different DOM samples, with soil humic substances being less reducible than aquatic humic substances. While there were statistically significant correlations between the reducibility of DOM and molecular size descriptors, these descriptors could not differentiate between soil and aquatic DOM isolates with similar bulk properties. The extent of absorbance removal by borohydride is largely determined by the origin of the humic substance isolate (aquatic vs soil) instead of molecular size or charge.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
H. Feng, Y. N. Liang, X. Hu
Summary: Natural organic matter (NOM) has been widely studied due to its unique compositions and configurations. Despite the negative environmental impacts, NOM has shown great potential in environmental conservation and remediation. This review focuses on the applications of NOM in soil remediation, water treatment, phytoremediation, soil erosion control, and photocatalysis, discussing their working principles and recent developments. The review also addresses the challenges and prospects of synthetic humic-like acid (SHLA) in environmental remediation.
MATERIALS TODAY SUSTAINABILITY
(2022)
Article
Engineering, Environmental
Xiaolin Cai, Laurel K. ThomasArrigo, Xu Fang, Sylvain Bouchet, Yanshan Cui, Ruben Kretzschmar
Summary: The presence of polygalacturonic acid and humic acid promoted the reductive dissolution of ferrihydrite, resulting in increased release of arsenic compared to ferrihydrite without organic matter. Arsenic-XAS results showed a higher fraction of solid-phase arsenite in the presence of organic matter.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Environmental Sciences
Daniele Rodrigues Barbosa, Andres Calderin Garcia, Camila da Costa Barros de Souza, Nelson Moura Brasil do Amaral Sobrinho
Summary: Herbicide application is a common practice in agricultural systems for efficient weed control. This study found a close relationship between the herbicide oxyfluorfen accumulation in vegetable production areas and the structural characteristics of humic substances, indicating higher levels of oxyfluorfen in areas with lower slope and higher organic matter and clay content, affecting the recalcitrant properties of humic acids.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Ludovico Pontoni, Valentina Roviello, Marco Race, Luigi Savignano, Eric D. van Hullebusch, Giovanni Esposito, Francesco Pirozzi, Massimiliano Fabbricino
Summary: Natural organic matter (NOM) extracted from Sphagnum peat soil self-organizes into colloidal aggregates of variable sizes in water, stabilized by the exposure of polar functional groups to solvent, forming hydrogen bonds and dipole interactions. The inner part of the aggregates displays hydrophobic features and is further reinforced by p-stacking interactions.
ENVIRONMENTAL RESEARCH
(2021)
Article
Engineering, Environmental
Hang Li, Garrett McKay
Summary: Fluorescence spectroscopy is widely used to study dissolved organic matter (DOM). This study used fluorescence quenchers to evaluate the chemical and spatial heterogeneity of DOM fluorophores. The study found that multiple emitting species contribute to the observed emission, even at a single excitation wavelength. The results provide insights into the spatial distribution of fluorophores within DOM and their relationship with solvent polarity and pH.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Lingfei Ma, Fangyuan Peng, Qingqing Dong, Haipu Li, Zhaoguang Yang
Summary: The main biochemical components in Algogenic organic matter (AOM) were analyzed to investigate their contributions to the formation of disinfection byproducts (DBPs). The results showed that proteins were the key contributor to DBPs in AOM. Therefore, targeted removal of proteins before the chlorination process can effectively reduce DBPs in AOM.
Article
Agronomy
Dorota Pikula, Olga Ciotucha
Summary: Understanding the transformation processes of organic matter in soil is crucial for managing soil organic carbon dynamics. This study found that both crop rotation and manure fertilization had significant effects on soil organic matter fractions and humus humification index. Additionally, mineral nitrogen fertilization and pH conditions also played a role in the composition of humus compounds in the soil.
Article
Environmental Sciences
Erika Jez, Carlo Bravo, Domen Lestan, Simon Gluhar, Ladislau Martin-Neto, Maria De Nobili, Marco Contin
Summary: The study found that CaEDTA remediation significantly decreased the free fraction of humic acids in soils contaminated with potentially toxic metals, while the bound fraction of humic acids and fulvic acids remained unchanged. Disturbance of intermolecular bonds during remediation affected the composition of the free humic acid fraction, confirming a selective removal of non-radical molecules such as carbohydrates while increasing the concentration of free radicals in acidic soil. The restoration of free humic fractions is likely to be a long-term process, indicating that CaEDTA soil washing is moderately conservative in terms of soil organic matter remediation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Environmental
YingXun Du, ShiLin An, Hu He, ShuaiLong Wen, Peng Xing, HongTao Duan
Summary: This study investigates the role of sediments in the biogeochemical transformation of organic matter during algal blooms in a shallow eutrophic lake in China. The results show that sediments have a significant positive effect on nutrients, metals, phytoplankton, particulate organic matter, and dissolved organic matter. The findings highlight the importance of sediments in the carbon cycle and organic carbon formation.
Article
Geochemistry & Geophysics
Xiaoyu Chen, Hyeong Kyu Kwon, Dongjoo Joung, Cheolmin Baek, Tae Gyu Park, Moonho Son, Guebuem Kim
Summary: This study investigated the interactions between dissolved trace elements and humic dissolved organic matter of different origins in two coastal regions of Korea, revealing that both terrestrial and marine DOMH can complex with dissolved trace elements, stabilizing them in the dissolved phase in coastal waters.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Environmental Sciences
Victoria Regina Celso Monteiro Zanona, Carlos Eduardo Rodrigues Barquilha, Maria Cristina Borba Braga
Summary: The main objective of this research was to remove recalcitrant organic matter from landfill leachate by adsorption onto biochar produced from sewage sludge. It was found that the biochar produced at 850 degrees C and 60 min showed the best performance in removing chemical oxygen demand (COD), dissolved organic carbon (DOC), and color from the leachate. Therefore, the pyrolysis of sewage sludge to produce biochar is a promising alternative for sludge treatment and pre-treatment of landfill leachate.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Yajun Tian, Li Feng, Renna Li, Jun Li, Ziwen Du, Liqiu Zhang, Yongze Liu
Summary: In this study, it was found that humic substances exhibited a marked inhibitory effect on the EOM-mediated photodegradation of chlortetracycline (CTC), mainly attributed to the back reduction of CTC oxidation intermediates by the antioxidant moieties in humic substances. Ozonation treatment for humic substances greatly decreased the inhibitory effects, confirming the dominant role of antioxidant moieties in humic substances in inhibiting CTC photodegradation mediated by EOM.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Tamiris Conceicao de Aguiar, Danielle Franca de Oliveira Torchia, Tadeu Augusto van Tol de Castro, Orlando Carlos Huertas Tavares, Samuel de Abreu Lopes, Lucas de Souza da Silva, Rosane Nora Castro, Ricardo Luiz Louro Berbara, Marcos Gervasio Pereira, Andres Calderin Garcia
Summary: This study evaluated the structural patterns of 80 humic acid samples from different soils using spectroscopic characterization and chemometric techniques. Despite their different sources, all samples had similar structural patterns, but different relative quantities of organic C species. The humification process depends on the characteristics of the soil and the local environment. The structural patterns justify the existence of humic substances with self-assembled, hydrophilic, and hydrophobic domains that can undergo transformations under certain conditions, altering the balance of organic carbon in the environment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Hiba ZIND, Leslie MONDAMERT, Quentin B. L. A. N. C. A. R. T. REMAURY, Alexis CLEON, Nathalie K. A. R. P. E. L. V. E. L. LEITNER, Jerome LABANOWSKI
Summary: This study investigated the contamination of pharmaceutical metabolites and transformation products in ten sites along three French rivers, revealing their presence in various compartments at different concentrations. QSAR models were used to predict the ecotoxicity of the studied compounds, showing that some metabolites and TPs may be more toxic than others.
Article
Environmental Sciences
Marisa Haenni, Christophe Dagot, Olivier Chesneau, Delphine Bibbal, Jerome Labanowski, Michele Vialette, Damien Bouchard, Fabrice Martin-Laurent, Louisiane Calsat, Sylvie Nazaret, Fabienne Petit, Anne-Marie Pourcher, Anne Togola, Morgane Bachelot, Edward Topp, Didier Hocquet
Summary: Antimicrobial resistance (AMR) is a major global public health concern, and the Government of France commissioned a report to provide policy makers with evidential basis for actions to mitigate AMR in the environment. The study identified wastewater treatment plants as the major source of contamination on French territory, with organic waste products as a more diffuse and incidental contamination of aquatic environments.
ENVIRONMENT INTERNATIONAL
(2022)
Article
Microbiology
Olha Matviichuk, Leslie Mondamert, Claude Geffroy, Margaux Gaschet, Christophe Dagot, Jerome Labanowski
Summary: This study suggests that there is a significant difference in the antibiotic content, resistome, and microbiome composition between river biofilms collected upstream and downstream of a wastewater treatment plant. While microbial community composition and antibiotic content may influence antibiotic resistance genes in downstream samples, the direct correlation between antibiotics and resistance genes was not observed. The findings highlight the complexity of factors contributing to antibiotic resistance and emphasize the need for specific concentration limits for antibiotics and resistance determinants in wastewater treatment plant effluents to prevent their environmental spread.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Multidisciplinary Sciences
Jean-Luc Bertrand-Krajewski, Remy Bournique, Vivien Lecomte, Noemie Pernin, Laure Wiest, Christine Bazin, Agnes Bouchez, Elodie Brelot, Benoit Cournoyer, Teofana Chonova, Christophe Dagot, Pascal Di Majo, Adriana Gonzalez-Ospina, Audrey Klein, Jerome Labanowski, Yves Levi, Yves Perrodin, Sandra Rabello-Vargas, Liana Reuilly, Audrey Roch, Axel Wahl
Summary: The Bellecombe pilot site - SIPIBEL - was established in 2010 to study the characteristics, treatability, and impacts of hospital effluents in an urban wastewater treatment plant. The pilot site consists of a hospital, a wastewater treatment plant, and a receiving water body. The extensive database includes various measurements and indicators.
Article
Environmental Sciences
Marilia Camotti Bastos, Danilo dos Santos Rheinheimer, Thibaut Le Guet, Jocelina Vargas Brunet, Elodie Aubertheau, Leslie Mondamert, Jerome Labanowski
Summary: The study evaluated pharmaceutical contamination levels and the presence of resistance genes in biofilms from a South Brazilian watershed. Urban activities and intensive animal breeding were identified as important sources of contamination, with agricultural activities contributing through the transfer of pharmaceuticals from animal waste application. The most contaminated site was located in an urban area, and the quality of the biofilms served as a useful tool for environmental pollution monitoring.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Environmental Sciences
Roukaya Al Haj Ishak Al Ali, Leslie Mondamert, Jalal Halwani, Joelle Jandry, Nadine Nassif, Amin Shaban, Jean-Marc Berjeaud, Jerome Labanowski
Summary: The Akkar plain in Lebanon, as the second largest agricultural area, has seen an increase in the concentration of OCPs and OPPs in groundwater due to the uncontrolled use of pesticides by farmers. This poses a significant health risk for the population consuming well water during the rainy season.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Environmental Sciences
Danilo Rheinheimer Dos Santos, Marilia Camotti Bastos, Jose Augusto Monteiro De Castro Lima, Thibaut Le Guet, Jocelina Vargas Brunet, Gracieli Fernandes, Renato Zanella, Osmar Damian Prestes, Leslie Mondamert, Jerome Labanowski
Summary: Spatial-temporal monitoring of pesticides and pharmaceuticals in water was conducted using different matrix choices. The effectiveness of epilithic biofilms, active water sampling, and passive sampler-POCIS were compared. Nine sites with different rural anthropic pressures and untreated urban areas were monitored. Epilithic biofilms were found to be a viable alternative for analyzing pesticides and pharmaceuticals in water sources, especially when combined with POCIS.
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES
(2023)
Article
Engineering, Environmental
Olha Matviichuk, Leslie Mondamert, Claude Geffroy, Christophe Dagot, Jerome Labanowski
Summary: Waterborne bacteria in biofilms are continuously exposed to pharmaceutical residues in the freshwater environment. The amount of antibiotics in the biofilms away from discharge points favors the maintenance and enrichment of resistant strains and the selection of new mutants over time. This study highlights the presence of environmental selection pressure in rivers beyond urban areas and the need to consider antibiotic risks beyond hotspots.
Review
Water Resources
Baruc Goussanou, A. V. O. Akowanou, H. E. J. Deguenon, M. M. A. Daouda, M. B. Djihouessi, M. P. Aina, J. Labanowski
Summary: In low-income countries, untreated fecal sludge is often discharged directly into the environment, posing risks to both public health and the environment. Planted drying beds (PDBs) offer a promising and cost-effective solution for treating fecal sludge. This paper presents a literature review on the use of PDBs in Africa, highlighting the need for standardized implementation methodologies, research on new native species, and testing of different species combinations in the beds to improve efficiency.
JOURNAL OF WATER SANITATION AND HYGIENE FOR DEVELOPMENT
(2023)
Article
Microbiology
Roukaya Al Haj Ishak Al Ali, Leslie Mondamert, Jean-Marc Berjeaud, Joelle Jandry, Alexandre Crepin, Jerome Labanowski
Summary: This research focused on the impact of chemical pollutants on bacterial pathogenicity, using quantitative structure-activity relationship (QSAR) models to predict the effect of compounds on bacterial growth and motility. The results showed that the model has some uncertainty and suggested the need for more compounds and interactions to improve accuracy.
Article
Microbiology
Rayan Bouchali, Laurence Marjolet, Leslie Mondamert, Teofana Chonova, Sebastien Ribun, Elodie Laurent, Agnes Bouchez, Jerome Labanowski, Benoit Cournoyer
Summary: The study investigated the ability of bacteria in wastewater treatment plant (WWTP) outflows to colonize rock surfaces and contribute to the formation of river epilithic biofilms. The bacterial communities of biofilms developing on rocks exposed to treated wastewaters (TWW) from a hospital and a domestic clarifier, as well as surface waters of the stream at different distances from the WWTP outlet, were compared. The results revealed differences in bacterial contents and species composition among the biofilms depending on the source of treated wastewater. The analysis also highlighted the presence of multi-resistant bacteria and correlations between bacterial species and pharmaceutical concentrations in the biofilms.
Article
Biochemistry & Molecular Biology
Sufi Desrini, Julien Ducloux, Guillaume Hamion, Charles Bodet, Jerome Labanowski, Mustofa Mustofa, Titik Nuryastuti, Christine Imbert, Marion Girardot
Summary: The extracts of five invasive plants were investigated for their antifungal and antibiofilm activities against various Candida species. The study found that the ethanol and ethanol-water extracts of Reynoutria japonica leaves and Baccharis halimifolia effectively inhibited the growth of Candida albicans and the formation of its biofilm. The essential oil of B. halimifolia leaves, particularly the compound β-caryophyllene oxide, showed the strongest activity against mature biofilms of C. albicans. This study highlighted the antibiofilm potential of B. halimifolia and its essential oil.
CHEMISTRY & BIODIVERSITY
(2023)
