Article
Environmental Sciences
Kirklyn B. Davidson, Baillie E. J. Holmes, Ian S. Spooner, Dewey W. Dunnington, Tony R. Walker, Craig B. Lake, Chih-Chieh Su
Summary: The paleolimnological method was used to study a contaminated sediment stabilization basin in Nova Scotia, Canada and found that there was no distinct spatial trend in metal concentrations, high and variable concentrations of Cu and Zn in contaminated sediment, and high sedimentation rate. Temporal trends indicated significantly higher concentrations of Zn and Cu in top sediment samples.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Sylvain Orseau, Nicolas Huybrechts, Pablo Tassi, Damien Pham Van Bang, Fabrice Klein
Summary: A project funded by the port of Bordeaux aims to optimize ship navigation in the macrotidal Gironde Estuary by better understanding hydrodynamic and fine sediment transport. The two-dimensional hydro-sedimentary model includes various forcings and processes, and is shown to accurately reproduce suspended-sediment concentrations in the central Estuary. However, the model's accuracy can be significantly altered by river discharge and changes in turbidity maximum zone migration.
INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH
(2021)
Article
Geology
Maxime Virolle, Benjamin Brigaud, Hugues Fenies, Raphael Bourillot, Eric Portier, Patricia Patrier, Herve Derriennic, Daniel Beaufort
Summary: Estuaries provide a unique environment for studying the interaction between minerals and biofilms, with biofilms playing a key role in influencing sediment stability and sandstone properties in estuarine systems. This study characterizes a modern heterolithic point bar in the Garonne estuarine channel, highlighting the potential for it to serve as a modern analogue for ancient tidally influenced point-bar deposits associated with clay coatings.
JOURNAL OF SEDIMENTARY RESEARCH
(2021)
Article
Environmental Sciences
Zeyan Zhou, Panyue Zhang, Guangming Zhang, Siqi Wang, Yajing Cai, Hongjie Wang
Summary: The study on the vertical microplastic distribution in estuary sediment of Fuhe River in northern China revealed that microplastic content decreased with depth, with the highest content in the topmost sediment layer. The smaller particle size and higher proportion of colored microplastics were found in deeper sediment layers. The spatial distribution of microplastics in sediments was closely related to human activities, with higher content in areas with more intense human activities.
Article
Environmental Sciences
Sara Innangi, Michele Innangi, Mirko Di Febbraro, Gabriella Di Martino, Marco Sacchi, Renato Tonielli
Summary: This study presents a novel model for obtaining high-resolution seafloor maps using backscatter and bathymetric multibeam system data. The linear regression model achieved accurate predictions of grain size distribution. Despite some limitations, this modeling approach is a flexible tool that provides continuous maps of sediment size.
Article
Environmental Sciences
K. Radhakrishnan, V. Sivapriya, A. Rajkumar, N. Akramkhan, P. Prakasheswar, S. Krishnakumar, S. M. Hussain
Summary: The study found that microplastics in the sediments of the Kayamkulam estuary are primarily fiber and film shaped, with 1000 mu m microplastics being dominant, and polyester polypropylene and polyethylene being the main compositions. The distribution of microplastics is influenced by estuarine inundating water and the distance of the sampling site from the open sea.
MARINE POLLUTION BULLETIN
(2021)
Article
Geography, Physical
Xiaohan Zhang, Lizhe Wang, Jun Li, Wei Han, Runyu Fan, Sheng Wang
Summary: This study develops a method based on satellite remote sensing and deep learning to identify nearshore sediments using multispectral images and a quasi-analytical algorithm. The experiments demonstrate that the proposed method achieves high accuracy in signal point extraction and sediment classification.
ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING
(2023)
Article
Environmental Sciences
Fengrun Wu, Tao Wang
Summary: This study investigated the distribution characteristics of microplastics and crab burrows in the intertidal zone, and found that crab burrows have a trapping function for microplastics and increase their abundance in deeper sediment layers. Microplastics were more abundant and smaller in size in large burrows. The abundance of microplastics positively correlated with the area occupied by burrows.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Juan Jose Alava, Tamara N. Kazmiruk, Tristan Douglas, Goetz Schuerholz, Bill Heath, Scott A. Flemming, Leah Bendell, Mark C. Drever
Summary: The study revealed that 93% of sediment samples collected at Cowichan-Koksilah Estuary in British Columbia, Canada contained microplastics, with the abundance of fibers and fragments being correlated with the geographic location of the samples. The size distributions of microplastic fragments and fibers were similar to sediment grain size distributions, indicating that the occurrence of microplastics likely followed existing depositional processes within the estuary.
MARINE POLLUTION BULLETIN
(2021)
Article
Engineering, Civil
Nicolas Huybrechts, Hassan Smaoui, Sylvain Orseau, Pablo Tassi, Fabrice Klein
Summary: An automatic procedure to identify the bed friction coefficient is tested on a 2D hydrodynamic model of the Gironde estuary. Optimization algorithm improves prediction accuracy and different hydrological configurations require adaptation of the bed friction coefficient for accurate water level prediction.
JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING
(2021)
Article
Environmental Sciences
Xiaofeng Lu, Yu Dong, Qing Liu, Hongfei Zhu, Xingxing Xu, Jing Liu, Yi Wang
Summary: A hydrodynamic-water quality model was used to analyze the distribution of total nitrogen (TN) and total phosphorus (TP) in the wetland sediments of Liaohe Estuary National Wetland Park. The model accurately predicted the spatial and temporal variation patterns and pollutant distribution in the sediments. The simulation results showed that water flow through the wetland aids in purifying pollutants, with a more significant effect during the flood season. The TN content in the sediments decreased from southwest to northeast in the surface layer, following the flow direction of surface water, while the TP content decreased with increasing depth.
Article
Soil Science
Shuntao Chen, Dengzhou Gao, Jinbo Zhang, Yanling Zheng, Xiaofei Li, Hongpo Dong, Guoyu Yin, Ping Han, Xia Liang, Min Liu, Christoph Mueller, Lijun Hou
Summary: This study investigated the spatial changes in gross nitrogen transformation rates and related functional gene abundances in the intertidal zone of the Yangtze Estuary. The results suggest that gross nitrogen transformation rates vary significantly in estuarine and intertidal wetlands, with higher rates observed in freshwater and low-salinity areas. Sedimentary total organic carbon, nitrite, ferrous iron, and microbial functional gene abundances jointly mediate the gross nitrogen transformations. This research provides a better understanding of nitrogen cycling and management strategies in estuarine and coastal environments.
Article
Environmental Sciences
Ajoy Saha, M. E. Vijaykumar, B. K. Das, S. Samanta, M. Feroz Khan, Tania Kayal, Chayna Jana, Arnab Roy Chowdhury
Summary: In this study, the abundance of five sediment phosphorus fractions in the Netravathi-Gurupur estuary in India was determined using a sequential extraction method. The total phosphorus content varied between 435-810 mg/kg (non-monsoon) and 258-699 mg/kg (monsoon). Inorganic phosphorus was the dominant fraction, with Fe-P being the most abundant fraction. The sediment may act as a source of phosphorus, with bioavailable phosphorus constituting a significant portion of the total phosphorus content.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Ming Xu, Xing-hao Huang, Peng Gao, Hao-qiang Chen, Quan Yuan, Yun-xiang Zhu, Xiao-xiao Shen, Yan-yan Zhang, Zhao-xia Xue
Summary: In this study, the long-term spatiotemporal changes in hydrodynamics, antibiotics, antibiotic resistance genes (ARGs), class 1 integron gene (intI1), and microbial communities in a semi-enclosed estuary during ecological restoration were investigated. The restoration reduced common pollutants in the water, while ARGs showed noticeable seasonal and spatial variations. The distribution of ARGs and dominant antibiotic-resistant bacteria (ARB) were significantly affected by biological treatment and aerators in the estuary. Furthermore, microbial communities and intl1 were found to be key factors related to ARG dissemination.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Wenfeng Li, Jia Duo, Rehemanjiang Wufuer, Shuzhi Wang, Xiangliang Pan
Summary: This study investigated the concentrations of microplastic particles in sediment samples collected from the Yangtze River and its major tributaries. The study found that the abundance of microplastic particles varied in different locations, with small particles being predominant. The shape of microplastic particles also differed between upstream and downstream samples.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Analytical
Maria Cuartero, Gaston Crespo, Thomas Cherubini, Nadezda Pankratova, Fabio Confalonieri, Francesco Massa, Mary-Lou Tercier-Waeber, Melina Abdou, Jorg Schafer, Eric Bakker
ANALYTICAL CHEMISTRY
(2018)
Article
Chemistry, Analytical
Teba Gil-Diaz, Jorg Schafer, Alexandra Coynel, Cecile Bossy, Lionel Dutruch, Gerard Blanc
ENVIRONMENTAL CHEMISTRY
(2018)
Article
Environmental Sciences
Josette Garnier, Antsiva Ramarson, Vincent Thieu, Julien Nemery, Sylvain Thery, Gilles Billen, Alexandra Coynel
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2018)
Article
Oceanography
Daniel Cossa, Xavier Durrieu de Madron, Jorg Schafer, Stephane Guedron, Nicolas Marusczak, Sabine Castelle, Jean-Jacques Naudin
PROGRESS IN OCEANOGRAPHY
(2018)
Article
Environmental Sciences
Melina Abdou, Lionel Dutruch, Jorg Schafer, Benat Zaldibar, Rebeca Medrano, Urtzi Izagirre, Teba Gil-Diaz, Cecile Bossy, Charlotte Catrouillet, Ruoyu Hu, Alexandra Coynel, Antoine Lerat, Antonio Cobelo-Garcia, Gerard Blanc, Manu Soto
SCIENCE OF THE TOTAL ENVIRONMENT
(2018)
Editorial Material
Environmental Sciences
Antonio Cobelo-Garcia, Jorg Schafer, Ishai Dror
SCIENCE OF THE TOTAL ENVIRONMENT
(2018)
Article
Environmental Sciences
Anthony Bertucci, Fabien Pierron, Pierre-Yves Gourves, Christophe Klopp, Gauthier Lagarde, Clement Pereto, Vincent Dufour, Patrice Gonzalez, Alexandra Coynel, Helene Budzinski, Magalie Baudrimont
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2018)
Article
Environmental Sciences
Melina Abdou, Benat Zaldibar, Rebeca Medrano, Jorg Schafer, Urtzi Izagirre, Lionel Dutruch, Alexandra Coynel, Gerard Blanc, Manu Soto
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2020)
Article
Environmental Sciences
Antoine Lerat-Hardy, Alexandra Coynel, Lionel Dutruch, Clement Pereto, Cecile Bossy, Teba Gil-Diaz, Marion-Justine Capdeville, Gerard Blanc, Jorg Schafer
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Environmental Sciences
Thomas Gardes, Maxime Debret, Yoann Copard, Alexandra Coynel, Julien Deloffre, Matthieu Fournier, Sidonie Revillon, Jean Nizou, Anne-Lise Develle, Pierre Sabatier, Stephane Marcotte, Edouard Patault, Quentin Faivre, Florence Portet-Koltalo
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Environmental Sciences
Clement Pereto, Alexandra Coynel, Antoine Lerat-Hardy, Pierre-Yves Gourves, Jorg Schafer, Magalie Baudrimont
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Chemistry, Analytical
Antonio Cobelo-Garcia, Mirsya E. Mulyani, Jorg Schafer
Summary: The determination of palladium in environmental samples by ICP-MS is challenging due to extensive interferences, but an interference-free methodology for the determination of Pd in natural waters has been successfully achieved by online matrix separation and preconcentration. This method allows for the detection of dissolved Pd in natural samples at low, ambient concentrations, providing valuable data for understanding the behavior of Pd in natural waters.
Article
Environmental Sciences
Andre-Marie Dendievel, Brice Mourier, Aymeric Dabrin, Hugo Delile, Alexandra Coynel, Antoine Gosset, Yohan Liber, Jean-Francois Berger, Jean-Philippe Bedell
ENVIRONMENT INTERNATIONAL
(2020)
Article
Geosciences, Multidisciplinary
Andre-Marie Dendievel, Brice Mourier, Alexandra Coynel, Olivier Evrard, Pierre Labadie, Sophie Ayrault, Maxime Debret, Florence Koltalo, Yoann Copard, Quentin Faivre, Thomas Gardes, Sophia Vauclin, Helene Budzinski, Cecile Grosbois, Thierry Winiarski, Marc Desmet
EARTH SYSTEM SCIENCE DATA
(2020)