Article
Geosciences, Multidisciplinary
Nikita Kaushal, Nivedita Sanwlani, Jani T. I. Tanzil, Nagur Cherukuru, Syamil Sahar, Moritz Mueller, Aazani Mujahid, Jen N. Lee, Nathalie F. Goodkin, Patrick Martin
Summary: Terrigenous dissolved organic matter (tDOM) carried by rivers is an important carbon flux to the coastal ocean, rich in light-absorbent chromophoric dissolved organic matter (CDOM). Luminescence green-to-blue (G/B) ratios in coral cores correlate strongly with remote sensing-derived CDOM absorption, indicating control by rainfall and solar radiation.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Engineering, Marine
Mariel Gullian-Klanian, Gerardo Gold-Bouchot, Maria Jose Sanchez-Solis
Summary: This study characterized the fluorescent components of DOM produced by 12 heterotrophic bacteria isolated from aquaculture systems, revealing different production patterns of protein-like and humic-like substances in intracellular and extracellular fractions. Some bacteria showed promise in supplying essential amino acids, while others played a major role in nutrient exchange and the global carbon cycle.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Environmental Sciences
L. O. Vidal, T. Lambert, L. C. Cotovicz Jr, M. C. Bernardes, R. Sobrinho, F. Thompson, G. D. Garcia, B. A. Knoppers, P. Gatts, C. R. Regis, G. Abril, C. E. Rezende
Summary: This study investigated the sources and transformations of dissolved organic matter (DOM) in the Paraiba do Sul River and mangrove waters, and found that river discharge and salinity gradient affect the composition and contribution of DOM. Tidal fluctuations were also found to impact carbon input and DOM composition in the mangrove creek.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Ruchi Bhattacharya, Christopher L. Osburn
Summary: The study in a coastal river basin in the SE USA showed that high flow events were characterized by elevated flux of humic acid-like CDOM and lower in-stream autochthonous production. In contrast, low flow events were marked by an increased abundance of microbial, humic CDOM that can be easily processed within the estuary. The findings suggest that similar coastal watersheds may contribute substantial amounts of reactive CDOM to the estuaries during high flow conditions, impacting coastal C dynamics.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Yasong Wang, Bilin Liu, Weichao Wu, Liang Liu, Yinghui Wang, Yunping Xu
Summary: The concentration and composition of dissolved organic matter (DOM) in water samples collected from the Kuroshio-Oyashio confluence region were examined. The concentration of dissolved organic carbon (DOC) ranged from 30.54 to 113.21 μmol L-1, with higher concentrations observed in surface waters. Different fluorescent components in the water samples were identified and their intensities varied among different years. Water temperature was found to be correlated with the composition and intensity of DOM.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Eurico J. D'Sa, Hyun-Cheol Kim, Sun-Yong Ha, Ishan Joshi
Summary: The Ross Sea in the Southern Ocean is a highly productive region that plays a significant role in deep water formation and carbon cycling. The study of dissolved organic carbon (DOC) concentrations and chromophoric dissolved organic matter (CDOM) absorption and fluorescence properties during the austral summer revealed regional differences in CDOM characteristics, indicating the influence of marine productivity on optical properties of organic matter.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Environmental Sciences
Jian Xu, Zhengjun Jian, Yeqiao Wang, Chaoyang Fang, Qiwu Hu
Summary: This study investigated the spatial distribution and seasonal variations of DOC and CDOM in Poyang Lake from 2014 to 2016. The results showed that DOC and CDOM concentrations were higher in the southern part of the lake and in spring and summer. The absorption coefficient of CDOM was linearly correlated with DOC concentration. Water level, precipitation, and vegetation cover pattern were found to have determining effects on the spatial heterogeneity of DOC and CDOM. The main source of CDOM in Poyang Lake was terrestrial input.
ENVIRONMENTAL EARTH SCIENCES
(2023)
Article
Oceanography
Quentin Devresse, Kevin W. Becker, Ahmad Fehmi Dilmahamod, Eva Ortega-Retuerta, Anja Engel
Summary: This study investigated the optical properties of dissolved organic matter in two cyclonic eddies in the Eastern Tropical North Atlantic (ETNA). The results revealed suitable indicators for tracing the transport of freshly produced organic matter and remineralized organic matter within offshore eddies.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2023)
Article
Environmental Sciences
Heejun Han, Hyung Bo Kim, Jeonghyun Kim, Guebuem Kim, Jeomshik Hwang, SungHyun Nam
Summary: In August 2020, dissolved organic carbon (DOC) and the optical properties of dissolved organic matter (CDOM and FDOM) were measured in the northwestern Pacific marginal seas to understand their distribution and drivers. The concentrations of DOC and CDOM/FDOM in surface waters were primarily influenced by the Changjiang River, but high concentrations were also observed in the central Yellow Sea region due to continental shelf-water. The East/Japan Sea showed low DOC concentrations and high FDOM values. The distribution of DOM was influenced by the mixing of multiple water masses, and optical signatures of DOM can be used to trace its origins and characteristics.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Weixiang Ren, Xiaodong Wu, Bingfa Chen, Jianying Chao, Xuguang Ge, Jiuyun Yang, Hui Yang
Summary: Chromophoric dissolved organic matter (CDOM) is a key component that affects the ecological functioning of lakes. The optical characteristics of CDOM in the upstream and downstream lakes of the Taihu Lake Basin were systematically studied, revealing differences in CDOM composition. Soil or surface erosion was identified as the main factor contributing to higher abundance of C1 in the upstream lakes, while increased biological activities accounted for higher abundance of C3 in the downstream lakes. Rainfall erosion during the wet season led to an increase in CDOM. Photodegradation and flocculation degree played a significant role in reducing CDOM, with downstream lakes exhibiting higher levels. Optical analysis of CDOM provides a promising method for monitoring water quality in lakes.
CHINESE GEOGRAPHICAL SCIENCE
(2022)
Article
Environmental Sciences
E. Jerusalen-Lleo, M. Nieto-Cid, I. Fuentes-Santos, Thorsten Dittmar, X. A. Alvarez-Salgado
Summary: Our knowledge of the composition of ocean dissolved organic matter (DOM) is limited due to its molecular diversity, low individual compound concentration, and high ionic strength of ocean waters. Solid phase extraction (SPE) using styrene divinyl benzene polymer cartridges (PPL) is the most commonly used method to concentrate DOM. In this study, we investigate the efficiency and selectivity of SPE-PPL in extracting DOM from Arctic, Mediterranean, and Antarctic waters in the Cape Vert Frontal Zone (CVFZ). We found that the extraction efficiencies varied for different DOM pools and displayed significant differences among water masses.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Yixue Zhang, Ying Wu, Jing Zhang, Yi Xu, Ke Huang, Jie Jin, Jinlong Dai, Qi Ye, Jian Li, Zhenqiu Zhang
Summary: Through in situ observations and incubation experiments in the Central Indian Ocean and Bay of Bengal, the complexity of marine organic matter (OM) pools and the impact of different regulators on carbon storage are revealed in the tropical eastern Indian Ocean.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Xiaohui Zhang, Fang Cao, Ying Huang, Jianwu Tang
Summary: This study investigates the dissolved organic matter (DOM) in coastal tidal marsh-estuary systems in the Changjiang River Estuary (CRE). The DOM composition varies with hydrological regimes, seasons, and environmental conditions, and is influenced by removal processes such as photochemical and microbial degradations. The study reveals the dynamics of DOM and its optical properties, as well as the impact of photochemistry and microbial alterations on DOM removal. Principal component analysis (PCA) helps to understand the processes regulating DOM dynamics and differentiate between different marshes and samples affected by episodic weather events. The study highlights the significance of large rivers like the Changjiang River in estuarine marsh DOM dynamics.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Geosciences, Multidisciplinary
Andrea Malits, Chiara Monforte, Clara Iachetti, Marina Gerea, Maite Latorre
Summary: Dissolved organic matter (DOM) in the eastern Beagle Channel was analyzed to understand its distribution, source, and transformation in relation to microbial abundances and physicochemical gradients. DOM evolution was studied during tidal cycles in two distinct water masses. Fluorescent signals were used to differentiate labile and non-labile material, while various proxies were employed to assess biological activity and trace the quality and origin of DOM. The results showed increased chlorophyll concentration and protein-like fluorophores indicating the onset of a bloom event. Humic-like material from terrestrial sources was found throughout the water column, with higher amounts in the inner sector. The accumulation of humic-like material in bottom waters suggested the functioning of a microbial carbon pump fueled by terrestrial DOM sources.
JOURNAL OF MARINE SYSTEMS
(2023)
Article
Environmental Sciences
Xiangyu Wang, Ruilin Wu, Yong He
Summary: This study found fluorescence differences between agricultural and urban river reaches through the use of Danhe River and Mihe River. It identified three fluorescence components and showed that C2 can be considered as an indicator of agricultural sewage, while C3 is an indicator of domestic sewage.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Jennifer L. Williamson, Andrew Tye, Dan J. Lapworth, Don Monteith, Richard Sanders, Daniel J. Mayor, Chris Barry, Mike Bowes, Michael Bowes, Annette Burden, Nathan Callaghan, Gareth Farr, Stacey Felgate, Alice Fitch, Stuart Gibb, Pete Gilbert, Geoff Hargreaves, Patrick Keenan, Vassilis Kitidis, Monika Juergens, Adrian Martin, Ian Mounteney, Philip D. Nightingale, M. Gloria Pereira, Justyna Olszewska, Amy Pickard, Andrew P. Rees, Bryan Spears, Mark Stinchcombe, Debbie White, Peter Williams, Fred Worrall, Chris Evans
Summary: This study provides a comprehensive assessment of riverine dissolved organic carbon (DOC) export in Great Britain, revealing that smaller river systems draining peat-rich areas are underestimated in global syntheses. The study also highlights the significant influence of upland conifer plantation forestry on the spatial distribution of DOC exports. These findings have implications for future assessments of CO2 sequestration potential and climate change mitigation strategies.
Article
Geosciences, Multidisciplinary
Dan Lapworth, Thomas Boving, Bentje Brauns, Jane Dottridge, Paul Hynds, Seifu Kebede, David Kreamer, Bruce Misstear, Abhijit Mukherjee, Viviana Re, James Sorensen, Claudia Ruz Vargas
Summary: Improving our understanding of groundwater quality threats is crucial for protecting and managing groundwater resources effectively. Enhanced groundwater quality monitoring is needed to identify and mitigate the impacts of pollution on groundwater from past, present, and future sources.
HYDROGEOLOGY JOURNAL
(2023)
Article
Environmental Sciences
Ruth L. Airs, Rachael Beale, Luca Polimene, Yin Chen, Michaela A. Mausz, David J. Scanlan, Claire E. Widdicombe, Glen A. Tarran, E. Malcolm S. Woodward, Carolyn Harris, Andrea McEvoy
Summary: Glycine betaine (GBT) is a nitrogenous osmolyte found throughout the marine environment. This study presents a seasonal dataset of GBT concentrations in marine suspended particulate material, showing peaks in summer and autumn. The GBT concentrations are associated with specific phytoplankton groups or species, suggesting different environmental drivers for different periods of the GBT seasonality.
Correction
Environmental Sciences
Ruth L. Airs, Rachael Beale, Luca Polimene, Yin Chen, Michaela A. Mausz, David J. Scanlan, Claire E. Widdicombe, Glen A. Tarran, E. Malcolm S. Woodward, Carolyn Harris, Andrea McEvoy
Article
Environmental Sciences
Thomas R. Anderson, Wendy C. Gentleman, B. B. Cael, Joel J. -M. Hirschi, Robert L. Eastwood, Daniel J. Mayor
Summary: Sinking detritus particles play a crucial role in regulating global climate by transporting organic carbon into the deep ocean. We propose a new model that shows how the surface area of these particles increases during degradation, leading to faster remineralisation rates and reduced carbon sequestration. Our findings highlight the importance of further research to better understand the dynamics of particle surface area and microbial activity in order to improve global biogeochemical models.
Article
Biodiversity Conservation
Antonio Jonay Jovani-Sancho, Patrick O'Reilly, Gusti Anshari, Xin Yi Chong, Neil Crout, Christopher D. D. Evans, Stephanie Evers, Jing Ye Gan, Christopher N. Gibbins, Evi Gusmayanti, Jamaludin Jamaludin, Adi Jaya, Susan Page, Yosep Yosep, Caroline Upton, Paul Wilson, Sofie Sjogersten
Summary: This study aimed to quantify the soil CH4 and N2O fluxes from smallholder agricultural systems in Southeast Asia's tropical peatlands and assess their environmental controls. The results showed that water table depth strongly determined CH4 emissions, while mean total dissolved nitrogen in soil water strongly correlated with N2O emissions. These new emissions data could contribute to the development of more reliable country-level emission factors for national greenhouse gas inventory reporting. Rating: 8/10.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Limnology
Chris D. Evans, Stacey L. Felgate, Steffi Carter, Mark Stinchcombe, Edward Mawji, Andrew P. Rees, Inma Lebron, Richard Sanders, Paul Brickle, Daniel J. Mayor
Summary: The interface between freshwater and marine systems, estuaries, can act as a filter of the land-ocean carbon flux, removing terrestrially derived dissolved organic carbon (DOC). However, the fate of peat-derived DOC within estuaries remains poorly understood due to various factors. The study of DOC and inorganic nutrients in minimally disturbed Falkland Island estuaries revealed limited evidence of estuarine DOC removal, but observed hot zones of biogeochemical activity and in situ DOC production. This suggests that estuaries receiving high organic matter inputs can serve as analogues for natural biogeochemical functioning in temperate estuaries.
LIMNOLOGY AND OCEANOGRAPHY
(2023)
Article
Chemistry, Multidisciplinary
Xue-Gang Chen, Dagmara Rusiecka, Martha Gledhill, Angela Milne, Amber L. Annett, Antony J. Birchill, Maeve C. Lohan, Simon Ussher, E. Malcolm S. Woodward, Eric P. Achterberg
Summary: This article reports on the seasonal distributions of dissolved zinc, nickel, copper, cadmium, aluminum, and nutrients on the Northeast Atlantic continental margin. The variations in surface water trace metals and nutrient concentrations were mainly regulated by seasonal changes in biological processes. The stoichiometry of trace metals and nutrients on the continental shelf was additionally affected by fluvial inputs.
Article
Environmental Sciences
E. Elena Garcia-Martin, Richard Sanders, Chris D. Evans, Vassilis Kitidis, Dan J. Lapworth, Bryan M. Spears, Andy Tye, Jennifer L. Williamson, Chris Balfour, Mike Best, Michael Bowes, Sarah Breimann, Ian J. Brown, Annette Burden, Nathan Callaghan, Nancy B. Dise, Gareth Farr, Stacey L. Felgate, James Fishwick, Mike Fraser, Stuart Gibb, Pete J. Gilbert, Nina Godsell, Africa P. Gomez-Castillo, Geoff Hargreaves, Carolyn Harris, Oban Jones, Paul Kennedy, Anna Lichtschlag, Adrian P. Martin, Rebecca May, Edward Mawji, Ian Mounteney, Philip D. Nightingale, Justyna P. Olszewska, Stuart C. Painter, Christopher R. Pearce, M. Gloria Pereira, Kate Peel, Amy Pickard, John A. Stephens, Mark Stinchcombe, Barry Thornton, E. Malcolm S. Woodward, Deborah Yarrow, Daniel J. Mayor
Summary: The concentrations of particulate organic carbon (POC) and particulate organic nitrogen (PON) were evaluated in 13 British estuaries, and their sources were assessed using stable carbon and nitrogen isotopes. The results showed a high variability in POC and PON concentrations within the estuaries, indicating inputs and losses of organic material. The land cover of the catchment area appeared to influence the contribution of POC to the total organic carbon flux from the estuary to coastal waters.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2023)
Article
Environmental Sciences
J. E. Hatton, H. C. Ng, L. Meire, E. M. S. Woodward, M. J. Leng, C. D. Coath, A. Stuart-Lee, T. Wang, A. L. Annett, K. R. Hendry
Summary: Glaciers and ice sheets are rapidly warming due to climate change, and research suggests that glacial meltwaters provide important nutrients to downstream ecosystems. However, the fate of these nutrients in fjord environments is still uncertain. A study in southwest Greenland used concentration data and isotopic compositions to investigate silicon cycling in two contrasting fjords. The results suggest that glacially derived amorphous silica may play a role in modifying coastal waters within fjords.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2023)
Article
Engineering, Chemical
Jo Herschan, Aime Tsinda, Kenan Okurut, Rosalind Malcolm, Daniel J. Lapworth, Katherine Pond
Summary: The World Health Organization promotes the use of Water Safety Plans (WSPs) as the most effective way to manage drinking-water supplies. However, WSPs are not widely adopted in small drinking-water supplies in Sub Saharan Africa, including Rwanda. This research aims to identify good practices and gaps for the implementation of WSPs in small drinking-water supplies in Rwanda. Through interviews with key stakeholders, it was found that although there is low awareness and usage of WSPs, certain activities aligned with the WSP methodology are already being carried out. However, greater focus on community engagement, risk review, and data management is needed to fully align with the WSP approach.
Article
Environmental Sciences
Wenhao Wang, Heather Goring-Harford, Korinna Kunde, E. Malcolm S. Woodward, Maeve C. Lohan, Douglas P. Connelly, Rachael H. James
Summary: Chromium isotopic composition in ancient marine sediments can be used to infer changes in past seawater oxygenation or biological productivity. The relative contribution of external sources and internal cycling on the distribution of dissolved chromium in the oceans is still debated. In this study, water column profiles were obtained for dissolved chromium concentrations and chromium isotopes in the sub-tropical North Atlantic. The results suggest that benthic inputs and the formation of colloid aggregates of Fe-(oxyhydr)oxides play important roles in shaping the distribution of chromium.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Engineering, Marine
Rowena Stern, Kathryn Picard, Jessica Clarke, Charlotte E. Walker, Claudia Martins, Clare Marshall, Ana Amorim, E. Malcolm S. Woodward, Claire Widdicombe, Glen Tarran, Martin Edwards
Summary: This study evaluates the value of genetic methods in plankton monitoring and reveals that genetic methods can detect some special plankton communities that cannot be found by microscopic methods. Most of these detected plankton are mixotrophic or heterotrophic. In addition, quantitative real-time PCR detection reveals the growth pattern of two potentially harmful plankton species.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Oceanography
Kathryn B. Cook, Anna Belcher, Daniel Bondyale Juez, Gabriele Stowasser, Sophie Fielding, Ryan A. Saunders, Mohamed A. Elsafi, George A. Wolff, Sabena J. Blackbird, Geraint A. Tarling, Daniel J. Mayor
Summary: Zooplankton play an important role in ocean biogeochemistry, and their role in controlling atmospheric CO2 concentrations needs to be better understood. Pelagic mesozooplankton and micronekton communities influence the fate of organic matter through various ways, including consumption of primary producers and the active flux of carbon through diel vertical migration (DVM). The study provides insight into the biomass and metabolic budgets of mesopelagic animals, highlighting the need for a better understanding of lipid-storing animals and their influence on carbon budgeting in the pelagic.
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
(2023)
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)