Article
Environmental Sciences
Shuangmei Tong, Linsheng Yang, Hongqiang Gong, Li Wang, Hairong Li, Jiangping Yu, Yonghua Li, Yangzong Deji, Cangjue Nima, Shengcheng Zhao, Zongji Gesang, Chang Kong, Xiaoya Wang, Zhuming Men
Summary: The study found that the concentrations of trace elements in drinking water and human urine in plateau region of China generally met the guideline values, with selenium contributing to the excretion of several elements in the body. Different trace elements showed associations with each other, and age and gender appeared to play a role in the excretion of trace elements.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Dominik Voros, Daniela Rimnacova, Lujza Medvecka, Eva Gerslova, Mercedes Diaz-Somoano
Summary: This study aims to assess the environmental impact of sediments near the former Lazy coal mine site in the Upper Silesian Coal Basin, Czech Republic. The results indicate that sediments near the mine water discharge contain high concentrations of Mn, Sr, and Ba, with Ba and Sr precipitating as mineral barite. Additionally, coal materials exhibit beneficial sorption capacity for heavy metals removal.
Article
Biochemistry & Molecular Biology
Jacek Cybulski, Agata Witczak, Kamila Pokorska-Niewiada
Summary: This study evaluated the influence of water and wastewater treatment on reducing the concentrations of trace elements in drinking water in the Western Pomerania Voivodeship in Poland. The results showed that both water treatment and wastewater treatment were effective in reducing the concentrations of harmful elements, while essential elements remained within acceptable limits.
Article
Environmental Sciences
Cheng Peng, Xuchen Yan, Xianyun Wang, Yunying Huang, Lei Jiang, Peng Yuan, Xuefei Wu
Summary: The research found that factors such as pH, temperature, and hydraulic disturbance in the water body can affect the release of odorants from sediments. Low temperature promotes the release of certain odorants, while high-speed continuous hydraulic disturbance significantly increases the level of odorant release.
Article
Environmental Sciences
Siyuan Zhang, Weiru Wang, Fengwen Wang, Daijun Zhang, Neil L. Rose
Summary: The study revealed that concentrations of trace metals in the sediment beneath the water in the Three Gorges Reservoir were generally higher than after exposure, mainly due to the slower settling of suspended solids during the drawdown period.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Jens Hahn, Thanh Bui, Mathias Kessler, Collin J. Weber, Thomas Beier, Antje Mildenberger, Martina Traub, Christian Opp
Summary: Sediment management is an important aspect of reservoir operation. A study on six reservoirs found that sediments in reservoirs tend to accumulate a variety of metal(loid)s, with fine particles being preferentially deposited. The leaching of metals from catchment soils also contributes to the enrichment of metals in stream sediments, especially in forested areas with weakly acid parent material.
APPLIED SCIENCES-BASEL
(2022)
Article
Environmental Sciences
Rinat M. Manasypov, Oleg S. Pokrovsky, Liudmila S. Shirokova, Yves Auda, Nadezhda S. Zinner, Sergey N. Vorobyev, Sergey N. Kirpotin
Summary: The chemical composition of thermokarst lake ecosystem components is important for understanding current climate change and permafrost thaw. Macrophytes play a crucial role in controlling nutrients and toxicants in lake water, with accumulation patterns varying among different plant species. Future climate warming may lead to increased uptake of heavy metals and lithogenic elements by macrophytes, impacting nutrient transport from soils to lakes and rivers.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Chemical
Gangqiang Chen, Yuantao Tang, Yuhang Nan, Fan Yang, Dongyong Wang
Summary: This study investigated the paleo-environment deposition factors of the Lower Permian Fengcheng formation in the Mahu Sag by conducting geochemical analysis on samples. The deposition process was classified into four stages based on elemental indicators, describing the evolution of alkaline lakes. The research confirmed that the deposition of organic matter in P1f is influenced by various factors such as climate, oxygen levels, water salinity, and primary productivity.
Article
Environmental Sciences
Zihao Fu, Zijin Hong, Junling Wei, Yukai Liao, Songlin You, Yifan Wang, Jianjing Lv, Huan Feng, Marek Kolencik, Xuexiu Chang, Yu Qian
Summary: This study investigates the sediment phosphorus fractionation, adsorption kinetics, and adsorption isotherm characteristics of two rivers in China, with the aim of exploring management options for maintaining river water quality. The results show that sediment phosphorus fractions and adsorption characteristics are closely related and can be affected by human disturbance. The findings provide useful guidance for protecting the drinking water source reservoir.
JOURNAL OF SOILS AND SEDIMENTS
(2022)
Article
Geosciences, Multidisciplinary
Guoru Wei, Chunlai Zhang, Qing Li, Hongtao Wang, Rende Wang, Yajing Zhang, Yixiao Yuan
Summary: Northern China has 12 main deserts that can be divided into western, central, and eastern deserts. Physical weathering is more prominent in the western and central deserts, while chemical weathering is more prominent in the eastern deserts. Most major trace elements are more depleted in the eastern deserts compared to the western deserts, but moderately depleted in the central deserts. The potential source rocks of the central and western deserts are composed of intermediate igneous rocks, while the sediments in the eastern deserts are derived from the mixing of different types of rocks.
Article
Engineering, Environmental
Magdalena Szara-Bak, Agnieszka Baran, Agnieszka Klimkowicz-Pawlas, Joanna Tkaczewska, Barbara Wojtasik
Summary: This study aimed to assess ecological risks related to trace elements in the bottom sediment of the Ro(z) over dotnow reservoir using various indicators, finding that cadmium, nickel, and chromium are of concern. While the sediments are contaminated with nickel and chromium, they have low bioaccumulation factors and relatively low toxicity towards tested organisms. Biotesting and chemical analysis can help identify potential risks to aquatic organisms, highlighting the need for bioindicators exposed to trace elements in situ for accurate risk assessment.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2021)
Article
Spectroscopy
Chen Zhang, Xuejun Tan, Xue Yang, Li Wang
Summary: This study investigated the interactions between organic matters in sediments and trace metals in river estuary, revealing that both protein-like molecules and marine humic acids can react with Cu2+ and Cd2+. Protein-like molecules were more sensitive and Cu2+ had stronger binding ability compared to marine humic acids. Cd2+ showed higher environmental risks due to its higher migration and transformation. Thermodynamic results indicated that the reaction between WEOM and trace metals was spontaneous, exothermic, and favored at low temperatures.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Geosciences, Multidisciplinary
Qian Cao, Minghui Qi, Xiawei Li, Daifu Wang, Yuwei Deng, Chongyu Wu
Summary: The study analyzed the reservoir space development characteristics and geochemical parameters of the Permian Longtan Formation in the southeast of the Sichuan Basin at Well X1. The results showed that the deposition environment was warm and humid, with a small deposition rate. The clay mineral content and organic matter content played a major role in controlling the reservoir space development.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Malene Thygesen, Jorg Schullehner, Birgitte Hansen, Torben Sigsgaard, Denitza D. Voutchkova, Soren Munch Kristiansen, Carsten B. Pedersen, Soren Dalsgaard
Summary: This study explored the associations between 17 geogenic trace elements found in Danish drinking water and the risk of developing ADHD in a cohort of 284,309 individuals born between 1994 and 2007. Results showed that certain trace elements were associated with an increased risk of ADHD, while others had an inverse association. However, when considering region as a covariate, most of the associations were no longer significant or changed direction. Further analysis revealed interactions with region for certain trace elements in their association with ADHD.
JOURNAL OF TRACE ELEMENTS IN MEDICINE AND BIOLOGY
(2021)
Article
Environmental Sciences
Omar Celis-Hernandez, Andrew B. Cundy, Ian W. Croudace, Raymond D. Ward
Summary: Industrial and commercial port activities are recognized as a significant source of pollution to estuaries. This study focuses on the estuarine environment of Southampton Water, UK, investigating the contamination of trace metals and metalloids in sediments, their sources, and potential biological impacts. The findings suggest that the distribution of these contaminants is influenced by sediment composition and anthropogenic activities, with Cu, Zn, and Pb concentrations exceeding background levels. The Exxon oil refinery, Southampton port, marinas, and industrial and domestic runoff emerge as notable point sources of these elements. Pollution indices calculations highlight the environmental degradation caused by these pollutants, calling for further research to assess the current impact on the local ecology.
MARINE POLLUTION BULLETIN
(2022)
Article
Geology
Laura Stutenbecker, Romain Delunel, Fritz Schlunegger, Tiago Adriao Silva, Branimir Segvic, Stephanie Girardclos, Maarten Bakker, Anna Costa, Stuart N. Lane, Jean-Luc Loizeau, Peter Molnar, Naki Akcar, Marcus Christl
SEDIMENTARY GEOLOGY
(2018)
Article
Environmental Sciences
Elena Gascon Diez, Neil D. Graham, Jean-Luc Loizeau
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2018)
Article
Geochemistry & Geophysics
Gabriela Schwarz-Zanetti, Donat Fah, Sylvain Gache, Philipp Kastli, Jeanluc Loizeau, Virgilio Masciadri, Gregor Zenhausern
JOURNAL OF SEISMOLOGY
(2018)
Article
Geology
Tiago A. Silva, Stephanie Girardclos, Laura Stutenbecker, Maarten Bakker, Anna Costa, Fritz Schlunegger, Stuart N. Lane, Peter Molnar, Jean-Luc Loizeau
Article
Environmental Sciences
M. Bakker, A. Costa, T. A. Silva, L. Stutenbecker, S. Girardclos, J. -L. Loizeau, P. Molnar, F. Schlunegger, S. N. Lane
WATER RESOURCES RESEARCH
(2018)
Article
Environmental Sciences
Stamatina Makri, Andrea Lami, Brigitte Lods-Crozet, Jean-Luc Loizeau
JOURNAL OF PALEOLIMNOLOGY
(2019)
Article
Multidisciplinary Sciences
S. N. Lane, M. Bakker, A. Costa, S. Girardclos, J-L. Loizeau, P. Molnar, T. Silva, L. Stutenbecker, F. Schlunegger
SCIENTIFIC REPORTS
(2019)
Review
Limnology
Andrea Gallorini, Jean-Luc Loizeau
Summary: Mercury methylation in aquatic environments is a key process that introduces this neurotoxin into the food chain, primarily driven by sulfate-reducing bacteria in sediments. Research has shown that methylation can also occur in oxic layers with high content of particulate organic matter and localized depletion of dissolved oxygen.
JOURNAL OF LIMNOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Nicolas Waldmann, Kristian Vasskog, Guy Simpson, Emmanuel Chapron, Eivind Wilhelm Nagel Storen, Louise Hansen, Jean-Luc Loizeau, Atle Nesje, Daniel Ariztegui
Summary: This paper presents a detailed study on a rock fall event and associated tsunami wave that occurred in Lake Lovatnet, Norway in September 1936. By combining historical measurements, geological data, and numerical modeling, the research aims to provide a comprehensive background on the effects of such events and generate information for better mitigation strategies in the future.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Microbiology
Emilie Lyautey, Chloe Bonnineau, Patrick Billard, Jean-Luc Loizeau, Emmanuel Naffrechoux, Ahmed Tlili, Edward Topp, Benoit J. D. Ferrari, Stephane Pesce
Summary: Lake sediments serve as natural receptors to a variety of anthropogenic contaminants, impacting the diversity, structure, and functions of microbial communities, as well as their genetic potential for resistance to metals and antibiotics. Spatial variations in the contamination levels were observed among sampling sites, with heavily contaminated sites showing lower microbial diversity but higher abundance of antibiotic resistance genes.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Environmental Sciences
Clement Baratange, Severine Paris-Palacios, Isabelle Bonnard, Laurence Delahaut, Dominique Grandjean, Laurence Wortham, Stephanie Sayen, Andrea Gallorini, Jean Michel, David Renault, Florian Breider, Jean-Luc Loizeau, Claudia Cosio
Summary: In this study, the effects of carbamazepine (CBZ) and mercury (Hg) on zebra mussels were evaluated. It was found that the co-exposure of these two pollutants had the most significant impact, reducing the levels of various metabolites and causing structural changes in cells and organelles. Single exposures to CBZ or Hg had smaller effects, but still resulted in changes in metabolites and cellular structures. Additionally, both single and co-exposures increased the antioxidant response in gills and digestive glands. These findings highlight the importance of considering molecular toxicity pathways in predicting the effects of pollutants on organisms in complex environmental conditions.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Andrea Gallorini, Jean-Luc Loizeau
Summary: This study investigates MeHg and THg concentrations in lake snow of Lake Geneva and suggests that lake snow can be a micro-niche for Hg methylation similar to marine snow. The study also proposes a conceptual model and mass balance model to explain the behavior of MeHg in lake snow and estimate the time required to reach a steady state in the water column.
Article
Geology
Lucia Guerra, Mateo A. Martini, Hendrik Vogel, Eduardo L. Piovano, Irka Hajdas, Ricardo Astini, Antoine De Haller, Andrea Moscariello, Jean-Luc Loizeau, Daniel Ariztegui
Summary: This study analyzed the sediment and stratigraphic records of Laguna La Salada Grande in the central Andes of Northwestern Argentina to explore the paleoenvironmental changes and their causes. The results showed that the lake experienced a phase of deep water with organic matter enrichment since the Late Pleistocene, followed by a highly fluctuating shallower phase with frequent detrital influxes. Irregular high-energy discharge events, possibly triggered by convective atmospheric activity, were observed between 31,000 and 25,000 years ago. Furthermore, the study found a close link between the lake and the paleoclimate changes associated with the South American summer monsoon dynamics.
Article
Geosciences, Multidisciplinary
S. Halac, L. Mengo, L. Guerra, A. Lami, S. Musazzi, J. L. Loizeau, D. Ariztegui, E. L. Piovano
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2020)
Article
Geosciences, Multidisciplinary
Anna Costa, Peter Molnar, Laura Stutenbecker, Maarten Bakker, Tiago A. Silva, Fritz Schlunegger, Stuart N. Lane, Jean-Luc Loizeau, Stephanie Girardclos
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2018)