Article
Environmental Sciences
Francesco Ulloa-Cedamanos, Anne Probst, Vanessa Dos-Santos, Thierry Camboulive, Franck Granouillac, Jean-Luc Probst
Summary: Hydrological variations play a significant role in influencing water chemistry in the karstic critical zone. This study monitored the karstic Baget Catchment over two years to establish a typology of flood events and observed different physico-chemical patterns in response to hydrological variations. The study found that the karstic catchment exhibited impulsive responses to flood events, influenced by rainfall magnitude, preceding hydroclimatic conditions, and lithological contributions.
Article
Geochemistry & Geophysics
F. Ulloa-Cedamanos, A. Probst, I. Moussa, J. -L. Probst
Summary: The chemical weathering of rocks at the Earth's surface is crucial in the global carbon cycle, with karst systems being complex areas with multiple mineral sources that contribute to weathering processes. Carbonate dissolution and silicate weathering are the main sources of chemical weathering in a mountainous karstic catchment area, with gypsum dissolution and sulphuric acid weathering making smaller contributions. Factors such as hydrological conditions, temperature, vegetation, epikarst, and water dynamics influence the inter-annual and inter-seasonal variations of chemical weathering rates and CO2 consumption. Furthermore, the study highlights the importance of runoff intensity in karst hydrosystems, where carbonate dissolution drives a large portion of the total weathering CO2 uptake.
Article
Engineering, Civil
Michael Zilberbrand, Alexander Gimburg, Arthur Doroshev, Vladimir Mirlas, Yaakov Anker
Summary: The study found that the main processes shaping runoff chemistry in the central mountain rim of Israel are dissolution of dry fallout and salts from previous small-scale runoff events. Calcium and sulfate concentrations in the runoff are defined mainly by the dissolution of dust minerals, while sodium and chloride concentrations come from rain and dissolution of halite. Magnesium is mainly connected to dissolution of dolomite outcrops.
JOURNAL OF HYDROLOGY
(2022)
Review
Environmental Sciences
M. D. Covington, J. B. Martin, L. E. Toran, J. L. Macalady, N. Sekhon, P. L. Sullivan, A. A. Garcia, J. B. Heffernan, W. D. Graham
Summary: Earth's Critical Zone (CZ), influenced by underlying bedrock, is extensively studied for silicate-dominated landscapes but less so for carbonate landscapes. However, carbonate rocks cover around 15% of Earth's surface and provide essential resources. This study reviews the state of knowledge of the carbonate CZ, explores contrasts in different carbonate settings, and calls for integrative studies to develop a conceptual framework for the role of carbonates in the CZ.
Article
Geochemistry & Geophysics
Johanna Noireaux, Pamela L. Sullivan, Jerome Gaillardet, Pascale Louvat, Grit Steinhoefel, Susan L. Brantley
Summary: The study examines boron isotopes in different watershed components to understand water-rock interactions in a shale dominated watershed. Results show similarities in boron isotopes between bedrock and soil, while surface waters are enriched in boron compared to other compartments. Modeling suggests that surface water and groundwater isotopic fractionation is mainly due to water-rock interactions.
Article
Geosciences, Multidisciplinary
Sylvain Pasquet, Jean Marcais, Jorden L. Hayes, Peter B. Sak, Lin Ma, Jerome Gaillardet
Summary: Weathering and erosion processes are essential for CZ evolution and availability of natural resources. This study proposes a novel workflow using near-surface geophysics to characterize the architecture of the deep CZ at a catchment scale on a volcanic tropical island, revealing complex weathering patterns.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Patrick J. Frings, Marcus Oelze, Franziska Schubring, Daniel A. Frick, Friedhelm von Blanckenburg
Summary: Metal and metalloid stable isotope ratios are important proxies for weathering, element cycling, and export in the Critical Zone. By studying sites with varying erosion rates and regolith residence times, it was found that three key parameters influence these isotope ratios, particularly in the case of silicon. The research also highlights how the composition of clay minerals plays a significant role in expressing fractionation factors related to silicon isotope ratios.
AMERICAN JOURNAL OF SCIENCE
(2021)
Article
Environmental Sciences
Andre Baldermann, Martin Dietzel, Volker Reinprecht
Summary: Research has shown that factors such as sediment composition, weathering regime, and hydrochemistry have significant impacts on the initiation and progression of landslides. Infiltration of low mineralized meteoric water and percolating, highly mineralized water play crucial roles in triggering and advancing landslides.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Geochemistry & Geophysics
Xiaobai Ruan, Albert Galy
Summary: Chemical weathering plays a crucial role in the long-term carbon cycle, with different environments such as alpine periglacial and monsoonal climates having significant impacts on water chemistry. The presence of mass wasting deposits, such as landslides, talus, and rock glaciers, can influence water chemistry by contributing to the dissolved load of water samples. The periglacial critical zone in the alpine environment enhances chemical weathering by providing fresh mineral surfaces for water-rock interaction, leading to characteristic water chemistry in these regions.
Article
Water Resources
Jean Riotte, Laurent Ruiz, Stephane Audry, Benjamin Baud, Jean-Pierre Bedimo Bedimo, Laurie Boithias, Jean-Jacques Braun, Bernard Dupre, Jean-Louis Duprey, Mikael Faucheux, Christelle Lagane, Jean-Christophe Marechal, Hemanth Moger, Mandalagiri Subbarayappa Mohan Kumar, Harshad Parate, Olivier Ribolzi, Emma Rochelle-Newall, Buvaneshwari Sriramulu, Murari Varma, Muddu Sekhar
Summary: This study fills the gap in hydro-geochemical data in tropical dry climate regions, revealing the long-term evolution of hydrogeological cycles and groundwater storage in tropical dry forests. The dataset has already provided a better understanding of water and element cycling in these forests for the global scientific community.
HYDROLOGICAL PROCESSES
(2021)
Article
Environmental Sciences
Barbara D. Lima, Laercio L. Martins, Eliane S. de Souza, Marcos A. Pudenzi, Georgiana F. da Cruz
Summary: In a spill simulation experiment lasting 210 days using two Brazilian oils subjected to tropical conditions, it was found that isoprenoids and nalkanes experienced significant loss due to evaporation after 40 days. Polycyclic aromatic hydrocarbons also showed a decrease in concentration, mainly attributed to evaporation. Additionally, exposure to sunlight led to the production of oxygenated polar compounds, prompting the suggestion of new parameters for estimating oil spill time under tropical conditions.
MARINE POLLUTION BULLETIN
(2021)
Article
Geography, Physical
Sarah S. Benjaram, Jean L. Dixon, Andrew C. Wilcox
Summary: This study investigates the relationship between chemical weathering, persistence of soil cover, and topography in two neighboring mountain ranges in western Montana, USA. The findings reveal that weathering intensity is 1.5 times greater in the continuously soil-mantled landscape compared to the bedrock-rich system, and the soil thickness in the bedrock-rich system is roughly half of that in the continuously soil-mantled landscape.
Article
Geochemistry & Geophysics
Venkata Sailaja Pappala, Carli A. Arendt, Russell S. Harmon
Summary: This study determined the major constituent concentrations in the Matanuska River and other glacial rivers in southcentral Alaska. The findings suggest that chemical weathering processes and carbon feedback implications vary spatially, with carbonate dominace near the glacier terminus and carbonate-silicate weathering in the lower reaches of the river. The results highlight the importance of spatial sampling in proglacial systems to understand chemical signatures and carbon feedback.
Article
Environmental Sciences
Di Wang, Guilin Han, Bogen Li, Mingming Hu, Yuchun Wang, Jinke Liu, Jie Zeng, Xiaoqiang Li
Summary: This study investigates the water chemistry and weathering processes in the Xiaojiang River, a major tributary of the Three Gorges Reservoir. The results show that the river water is dominated by Ca2+-HCO3-. Surface water has the lowest total dissolved solid compared to other layers. Principal component analysis divides the major ions into two components, with one representing weathering end-members and the other representing mixed atmospheric and anthropogenic inputs. Carbonate weathering dominates the cationic composition, while atmospheric input and silicate weathering contribute similarly. Compared to other tributaries, the Xiaojiang River experiences more intense chemical weathering processes. The weathering rates of carbonates and silicates are also quantified. These findings contribute to our understanding of watershed weathering and the global carbon cycle.
Article
Engineering, Civil
Xin-Chu Wang, Fu-Jun Yue, Si-Liang Li, Xiao-Zheng Li, Yun-Chao Lang, Jian Hu, Hu Ding, Cong-Qiang Liu
Summary: Coastal zones are ecologically and environmentally significant. This study analyzed water samples from various sources in the Tianjin coastal zone to understand the spatial variations and key influencing factors of the nitrogen geochemical cycle. The results show that weathering dominates upstream water properties, while seawater intrusion determines downstream and midstream water chemical components. Dam regulation, evaporation, and precipitation also affect water chemical components, but to a lesser extent.
JOURNAL OF HYDROLOGY
(2022)
Article
Environmental Sciences
Zhong-Jun Wang, Fu-Jun Yue, Ji Lu, Yu-Chun Wang, Cai-Qing Qin, Hu Ding, Li-Li Xue, Si-Liang Li
Summary: In karst areas, the sources, transformations, and transport processes of nitrate in groundwater during rainfall events are complex. This study found that nitrate in karst groundwater mainly originates from chemical fertilizers and is influenced by denitrification. Rainwater transports nitrogen from the soil to groundwater through fissures, fractures, and conduits.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Agronomy
Zhong-Jun Wang, Fu-Jun Yue, Yu-Chun Wang, Cai-Qing Qin, Hu Ding, Li-Li Xue, Si-Liang Li
Summary: The results of this study indicate that heavy rainfall events have a significant impact on nitrogen patterns in karst areas. Chemical fertilizer is the dominant source of nitrate, and surface runoff is the main factor contributing to nitrogen loss in karst regions.
AGRICULTURAL WATER MANAGEMENT
(2022)
Article
Soil Science
Caiqing Qin, Si-Liang Li, Guang-Hui Yu, Adrian M. Bass, Fu-Jun Yue, Sheng Xu
Summary: Soil in karst zones plays a crucial role in balancing the global carbon budget and regulating climate change. This study investigates the vertical variation of soil carbon and its response to land-use change in a typical karst region in SW China. The results highlight the dynamic nature of soil carbon in karst zones and the need to consider it in estimating carbon sink and global carbon budget.
Article
Engineering, Civil
Xin-Chu Wang, Fu-Jun Yue, Si-Liang Li, Xiao-Zheng Li, Yun-Chao Lang, Jian Hu, Hu Ding, Cong-Qiang Liu
Summary: Coastal zones are ecologically and environmentally significant. This study analyzed water samples from various sources in the Tianjin coastal zone to understand the spatial variations and key influencing factors of the nitrogen geochemical cycle. The results show that weathering dominates upstream water properties, while seawater intrusion determines downstream and midstream water chemical components. Dam regulation, evaporation, and precipitation also affect water chemical components, but to a lesser extent.
JOURNAL OF HYDROLOGY
(2022)
Article
Environmental Sciences
Chen-Yang Shou, Ye Tian, Bin Zhou, Xu-Jin Fu, Yun-Ji Zhu, Fu-Jun Yue
Summary: The impact of rainfall on water quality is crucial in semi-arid regions. This study investigates the influence of rainfall changes on nitrogen and phosphorous concentrations in a water diversion project. The results demonstrate that rainfall controls river flow and affects the concentrations of TN and TP in rivers and reservoirs.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Environmental Sciences
Meng Lu, Xiao-Dan Wang, Fu-Jun Yue, Zi-Han Liu, Zhi-Yu Shi, Ping Zhang
Summary: Due to the excessive exploitation of traditional energy sources, the attention paid to water energy has increased. Utilizing reservoirs in karst areas often leads to water quality issues, particularly nitrate accumulation. The expansion of the Muzhu Reservoir in a karst area resulted in a change in hydro-chemistry type and a decrease in rock background components in the water, leading to nitrate accumulation. Monitoring nitrate accumulation in karst reservoirs is important for maintaining water quality.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Geography, Physical
Si-Liang Li, Xin Liu, Fu-Jun Yue, Zhifeng Yan, Tiejun Wang, Songjing Li, Cong-Qiang Liu
Summary: Nitrogen dynamics in ecosystems have significant impacts on the Earth's surface system. Exploring the sources and transformation of nitrogen in different Critical Zones is crucial for understanding biogeochemical cycles and promoting sustainable development.
PROGRESS IN PHYSICAL GEOGRAPHY-EARTH AND ENVIRONMENT
(2022)
Article
Environmental Studies
Yanan Wen, Min Xiao, Zhaochuan Chen, Wenxi Zhang, Fujun Yue
Summary: Dissolved organic matter (DOM) in urban rivers was studied to reveal its spatiotemporal variations and influencing factors. The results showed significant seasonal differences in DOM concentration, with higher levels in urban suburbs due to anthropogenic inputs. Different land use types affected the composition of riverine DOM, with a higher abundance of protein-like DOM in urban rivers. DOM in the watershed was influenced by both terrestrial and autochthonous sources, with human activities playing a major role.
Article
Water Resources
Liu Hao, Zhicai Zhang, Xi Chen, Qinbo Cheng, Siliang Li, Fujun Yue, Tao Peng, Lin Zhang
Summary: This study investigates the intra-event concentration-discharge (C-Q) relationships in underground channel flows in a 1.25 km(2) karst catchment in southwest China. The study finds that the C-Q relationships of different solutes are influenced by hydrological connectivity, which is crucial for assessing hydrochemical processes and fertilization management in this area.
HYDROLOGICAL PROCESSES
(2023)
Article
Engineering, Environmental
Fu-Jun Yue, Si-Liang Li, Susan Waldron, David M. Oliver, Xi Chen, Pan Li, Tao Peng, Cong-Qiang Liu
Summary: Karst terrain seasonal monsoonal rainfall often leads to high concentrations of nitrate-N in streams, which pose risks to the environment and human health. The relationship between rainfall events and nitrate export in karst terrain is not well understood. To study this, individual rainfall events were analyzed using sensor technology. The results showed that most rainfall events exhibited nitrate-discharge hysteresis with anticlockwise patterns, indicating long-distance nitrate export during short event periods. Factors such as hydrological connectivity and source availability influenced the hysteresis. Multiple linear regression models based on antecedent conditions and rainfall characteristics could predict nitrate loading during rainfall events. Management strategies should consider antecedent and rainfall conditions to reduce nitrogen loading in karst areas.
Article
Environmental Studies
Yangyang Wu, Jinli Yang, Siliang Li, Chunzi Guo, Xiaodong Yang, Yue Xu, Fujun Yue, Haijun Peng, Yinchuan Chen, Lei Gu, Zhenghua Shi, Guangjie Luo
Summary: This study investigates the spatiotemporal shifts in vegetation in the Miaoling area from 2000 to 2020 using the normalized difference vegetation index (NDVI), trend analysis, and the Mann-Kendall mutation test. It explores the contributions of climate change and human activities to regional vegetation changes and their drivers. The study finds that precipitation seasonality has the strongest positive correlation with NDVI, while vapor pressure deficit has a negative correlation. Human activities play a dominant role in influencing the vegetation, with the night light index having the most explanatory power on NDVI.
Article
Environmental Sciences
Meng Lu, Fu-Jun Yue, Xiao-Dan Wang, Zi-Han Liu, Zhi-Yu Shi, Ping Zhang
Summary: Karst groundwater is an important source of drinking water. However, it is often polluted by nitrate in agricultural regions, particularly in valley depression areas with strong hydrological connectivity. This study used high-resolution sampling and stable isotope analysis to identify nitrate sources and found that agricultural activities were the main cause of nitrate pollution. Therefore, effective prevention and control strategies should focus on fertilization methods and timing, as well as the spatial distribution of sinkholes.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Environmental
Xinwei Ren, Fu-Jun Yue, Jianhui Tang, Cai Li, Si-Liang Li
Summary: Excessive levels of NO3- can cause environmental issues, particularly in coastal areas. Accurate source tracing is crucial for effective pollution control and policy development. This study collected water samples from major river estuaries in the Bohai Sea of North China and used stable isotope analysis to determine the sources of NO3-.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Environmental Studies
Yangyang Wu, Lei Gu, Siliang Li, Chunzi Guo, Xiaodong Yang, Yue Xu, Fujun Yue, Haijun Peng, Yinchuan Chen, Jinli Yang, Zhenghua Shi, Guangjie Luo
Summary: This study explores the impact of the construction and operation of the GH highway on vegetation and NDVI, and finds that the construction has significantly affected the surrounding vegetation ecology and the correlation between temperature and vegetation cover is stronger than that between precipitation and vegetation.
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)