Article
Environmental Sciences
Xiaojing Wang, Li Li, Yijun Ren, Peng Cao, Aimei Zhu, Jihua Liu, Xuefa Shi
Summary: Thirteen short sediment cores were collected from Bohai Sea, Yellow Sea, and Changjiang Estuary in China to study the early diagenesis of redox sensitive metals (RSMs) in sediment. The recycling process of certain RSMs was closely correlated with each other and influenced by organic carbon oxidation rates. The accumulation of U was significant in the study region, especially in the Yellow River and Changjiang River input, suggesting that these sediments serve as important U sinks.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Geochemistry & Geophysics
Wenshuai Li, Xiao-Ming Liu, Kun Wang, James McManus, Brian A. Haley, Yoshio Takahashi, Mohsen Shakouri, Yongfeng Hu
Summary: This study investigates the importance of potassium budgets and isotope compositions in marine sedimentary rocks for the global potassium cycling, highlighting the interplay between continental weathering and marine sedimentary diagenesis, which influences the distribution of potassium in seawater through the mineral phases, origins, and isotopic compositions in rocks.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Oceanography
Wenyan Zhang, Andreas Neumann, Ute Daewel, Kai Wirtz, Justus E. E. van Beusekom, Annika Eisele, Mengyao Ma, Corinna Schrum
Summary: The benthic oxygen flux in the German Bight is influenced by a complex interplay of hydrodynamics, bioturbation, and bedform morphodynamics, with macrobenthos playing a dominant role in diffusive flux. Bioturbation contributes significantly to oxygen consumption and distribution of particulate organic carbon in sediments, with different roles in sandy versus muddy seabed environments.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Environmental Sciences
S. Sova Barik, Raj K. Singh, Subhasish Tripathy, S. H. Farooq, Pintu Prusty
Summary: This study assessed the bioavailability of metals in the sediments of Chilika, the largest brackish lagoon in Asia, and calculated the population density and abnormality index of benthic foraminifera. The results showed higher metal concentrations in low salinity regions, controlled by river discharge, with seasonal fluctuations of pH and cyclic oxygen deficiency intensifying metal leaching. Moreover, higher morphological abnormalities were observed in high salinity regions due to higher energy conditions near the sea.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Andrea Di Cesare, Lee J. Pinnell, Diego Brambilla, Giulia Elli, Raffaella Sabatino, Maria B. Sathicq, Gianluca Corno, Colin O'Donnell, Jeffrey W. Turner
Summary: Research has shown that bioplastics accumulate antibiotic and metal resistance genes in marine sediments, with the PHA group being particularly enriched in certain ARGs and MRGs. There is a strong correlation between the relative abundance of ARGs and MRGs, and PHA biofilms were found to be colonized by antibiotic-resistant hemolytic Bacillus cereus group bacteria.
ENVIRONMENTAL POLLUTION
(2021)
Article
Multidisciplinary Sciences
Sebastiaan J. J. van de Velde, Andrew W. W. Dale, Sandra Arndt
Summary: We developed a model to trace iron isotopes in marine sediments and studied the influence of bioturbation on the isotopic signature of benthic dissolved iron (DFe) flux. The model was fitted with published data, and effective fractionation factors were calibrated to match literature values. Our results showed that higher bioturbation increased the benthic DFe flux and its delta Fe-56 signature for higher oxygen concentrations, but decreased them for lower oxygen concentrations. Bioturbation also increased the sedimentary DFe release and decreased the delta Fe-56 signature on a global scale.
ROYAL SOCIETY OPEN SCIENCE
(2023)
Article
Geochemistry & Geophysics
S. Bruggmann, S. Severmann, J. McManus
Summary: Concentrations and isotope ratios of chromium (Cr) in marine sediment can be used to reconstruct ocean biogeochemical conditions. The study examines the differences in Cr concentrations between oxic and anoxic sediments, finding that Cr concentrations are lower in oxic sediments. It also highlights the strong dependence of Cr on sedimentary redox conditions and biological productivity.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2023)
Article
Engineering, Environmental
Rachel L. Coppock, Penelope K. Lindeque, Matthew Cole, Tamara S. Galloway, Pinja Nakki, Hannah Birgani, Saskiya Richards, Ana M. Queiros
Summary: The study found that biodiverse and functionally important seabed habitats act as microplastic sinks, with burrowing fauna contributing to this process via well-known benthic-pelagic pathways, the rates of which are modified by plastic exposure.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Biotechnology & Applied Microbiology
Rui Zhao, Ibrahim. F. F. Farag, Steffen. L. L. Jorgensen, Jennifer. F. F. Biddle
Summary: This study investigated the abundance, diversity, and metabolic capacities of CPR bacteria in marine sediments, finding a wide distribution and rich diversity of these bacteria compared to existing marker gene surveys. Through metagenome sequencing, the importance of these bacteria in sediments and their potential role in the early diagenesis of organic matter were revealed.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2022)
Article
Environmental Sciences
Nathaniel Clark, Joanne Vassallo, Patricia Silva, Ana Rita R. Silva, Marta Baccaro, Neja Medvescek, Magdalena Grgic, Abel Ferreira, Marti Busquets-Fite, Kerstin Jurkschat, Anastasios G. Papadiamantis, Victor Puntes, Iseult Lynch, Claus Svendsen, Nico W. van den Brink, Cornelis A. M. van Gestel, Susana Loureiro, Richard D. Handy
Summary: This study investigated the fate and bioaccumulation of silver sulfide nanoparticles and silver nitrate in an aquatic ecosystem. The results showed that the silver from silver sulfide nanoparticles was less bioavailable compared to silver nitrate.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Geochemistry & Geophysics
Allison L. Bryan, Alexander J. Dickson, Fern Dowdall, William B. Homoky, Don Porcelli, Gideon M. Henderson
Summary: The study found that cadmium in continental margin sediments exists mainly in organically bound and sulfide forms, with isotopic compositions lighter compared to seawater. These observations indicate a downward diffusive flux of seawater cadmium and redox-driven removal of cadmium during sulfide precipitation.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Environmental Sciences
Florian Scholz, Jun Cheng, Zhouling Zhang, Paul Vosteen, Christopher Siebert, Martin Frank
Summary: Barium (Ba) isotopes can serve as a tracer for riverine freshwater input to the ocean and marine biogeochemical cycling. This study investigates the processes affecting Ba cycling in Kiel Bight, a fjord in the Baltic Sea. The results show that Ba concentrations and isotope ratios vary with depth and are influenced by mixing of freshwater and seawater, as well as biological processes and sediment-water interactions. These findings have implications for understanding nutrient dynamics and the isotopic balance of Ba in the ocean.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Biology
Alison T. Cribb, Sebastiaan J. van de Velde, William M. Berelson, David J. Bottjer, Frank A. Corsetti
Summary: The radiation of bioturbation during the Ediacaran-Cambrian transition was hypothesized to increase oxygenation in sediments and promote the expansion of the benthic zone. However, the effects of bioturbation on sediment oxygen are not well-studied. We categorized trace fossils as either biomixing or bioirrigation fossils and used modeling to simulate oxygen penetration depths. Our findings suggest that biomixing was the dominant bioturbation behavior and extensive oxygenation of shallow marine sediments globally is unlikely.
Article
Geochemistry & Geophysics
Jack G. Murphy, Anne-Sofie C. Ahm, Peter K. Swart, John A. Higgins
Summary: The records of lithium isotopic composition in seawater preserved in shallow-marine carbonate sediments are valuable for studying the links between silicate weathering, clay formation, global carbon cycle, and Earth's climate over geological time. This study presents measurements of lithium isotopic composition in Neogene shallow-marine carbonates and demonstrates the effects of mineralogy and diagenetic alteration on the variability of bulk sediment δ Li-7 values. The findings suggest that robust 'snapshots' of seawater δ Li-7 values in the past can be obtained from shallow-water marine carbonate sediments.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Environmental Sciences
Quan Chen, Shu Xu, Jingfu Wang, Dengjun Wang, Zhihui Dai, Peng Liao, Jiaojiao Yang, Wen Guo, Shiming Ding, Jingan Chen
Summary: Investigated the patterns of trace metals (TMs) biogeochemical processes in sediments of a deep reservoir. The results showed that the activity of TMs in sediments under different microenvironmental conditions led to their heterogeneous distribution. The correlation of TMs within microniches in horizontal was usually different from that in vertical, indicating distinct biogeochemical process patterns. The 2D-HR data provided an update complement to better interpret the biogeochemical process patterns of TMs in sediments, with implications for water management and sediment pollution.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Marine & Freshwater Biology
Vincent P. Percuoco, Linda H. Kalnejais, Laurent V. Officer
ESTUARINE COASTAL AND SHELF SCIENCE
(2015)
Article
Limnology
Matthew H. Long, Matthew A. Charette, William R. Martin, Daniel C. McCorkle
LIMNOLOGY AND OCEANOGRAPHY-METHODS
(2015)
Article
Geochemistry & Geophysics
Qian Liu, Matthew A. Charette, Crystaline F. Breier, Paul B. Henderson, Daniel C. McCorkle, William Martin, Minhan Dai
GEOCHIMICA ET COSMOCHIMICA ACTA
(2017)
Article
Geochemistry & Geophysics
Jennifer L. Morford, William R. Martin, Caitlin M. Carney
Article
Geochemistry & Geophysics
Jennifer L. Morford, William R. Martin, Caitlin M. Carney
GEOCHIMICA ET COSMOCHIMICA ACTA
(2009)
Article
Geochemistry & Geophysics
Jennifer L. Morford, William R. Martin, Roger Francois, Caitlin M. Carney
GEOCHIMICA ET COSMOCHIMICA ACTA
(2009)
Article
Geochemistry & Geophysics
David R. Griffith, William R. Martin, Timothy I. Eglinton
GEOCHIMICA ET COSMOCHIMICA ACTA
(2010)
Article
Limnology
Qian Liu, Matthew A. Charette, Paul B. Henderson, Daniel C. McCorkle, William Martin, Minhan Dai
LIMNOLOGY AND OCEANOGRAPHY
(2014)
Article
Chemistry, Multidisciplinary
Linda H. Kalnejais, William R. Martin, Michael H. Bothner
Article
Ecology
William R. Martin
ENCYCLOPEDIA OF OCEAN SCIENCES, VOL 4: SEAFLOOR PROCESSES, 3RD EDITION
(2019)
Article
Geochemistry & Geophysics
Jennifer L. Morford, William R. Martin, Linda H. Kalnejais, Roger Francois, Michael Bothner, Ida-Maja Karle
GEOCHIMICA ET COSMOCHIMICA ACTA
(2007)
Article
Oceanography
WR Martin, FL Sayles
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
(2004)
Article
Ecology
J Morford, L Kalnejais, W Martin, R François, IM Karle
JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
(2003)
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)