Article
Engineering, Civil
Ramon Naranjo, David Smith, Evan Lindenbach
Summary: This study used field observations and numerical models to simulate seepage losses in the Truckee Canal system during the 2018 and 2019 irrigation seasons. The results showed that seepage rates ranged from 0.16 to 4.6 m3/d m-1, and the total annual volumetric losses estimated for 2018 and 2019 were 1.6 x 10-2 to 1.2 x 10-2 km3. The estimated seepage losses accounted for 32% to 41% of the inflow volumes.
JOURNAL OF HYDROLOGY
(2023)
Article
Engineering, Civil
Mahmood Sadat-Noori, Christian Anibas, Martin S. Andersen, William Glamore
Summary: Subsurface flow is crucial for wetland functioning and ecosystem services, with various methods such as radon, heat, and Darcy's equation used to quantify flow rates. While radon provides total subsurface flow, other methods like head gradient and heat tracer may underestimate flow in dynamic coastal systems like tidal wetlands. Employing a multi-tracer approach is important for accurately quantifying hydrological export of dissolved constituents in coastal wetlands.
JOURNAL OF HYDROLOGY
(2021)
Article
Environmental Sciences
Charles J. Paradis, Kendyl N. Hoss, Cullen E. Meurer, Jiyan L. Hatami, Martin A. Dangelmayr, Aaron D. Tigar, Raymond H. Johnson
Summary: This study conducted a field tracer test to investigate the potential mechanisms controlling the mobility of uranium in contaminated groundwater. The results showed that uranium did not mobilize from the solid to the aqueous phase during the tracer test, but oxidative immobilization of iron and manganese was observed. The study suggested that desorption of U(VI) was the predominant mobilization mechanism, although it was not solely dependent on concentration. The study ruled out oxidative dissolution and concentration-dependent desorption as common mobilization mechanisms and highlighted the importance of advection, dispersion, and the mineral phase of uranium.
JOURNAL OF CONTAMINANT HYDROLOGY
(2022)
Article
Energy & Fuels
Aleksandr S. Kazachenko, Natalya Yu Vasilieva, Olga Yu Fetisova, Valentine V. Sychev, Evgeniy Elsuf'ev, Yuriy N. Malyar, Noureddine Issaoui, Angelina Miroshnikova, Valentina S. Borovkova, Anna S. Kazachenko, Yaroslava D. Berezhnaya, Andrey M. Skripnikov, Dmitry Zimonin, Vladislav A. Ionin
Summary: This study reports a new method for synthesizing sulfur derivatives of betulin using solid catalysts, and the obtained products were comprehensively characterized. The results demonstrate that Amberlyst 15 (R) catalyst can effectively catalyze the synthesis of sulfur derivatives in the presence of both sulfamic acid and ammonium sulfamate.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Environmental Sciences
V. F. Bense, T. Kruijssen, M. P. van der Ploeg, B. L. Kurylyk
Summary: Assessing aquitard hydraulic properties is difficult but critical for understanding recharge and discharge in aquifer systems. This study compares traditional methods for estimating hydraulic conductivity to new methods using numerical modeling, head monitoring, and heat source inference, showing that the latter yields accurate results efficiently.
WATER RESOURCES RESEARCH
(2022)
Article
Chemistry, Physical
W. S. Abo El-Yazeed, M. Eladl, Awad Ahmed, Amr Awad Ibrahim
Summary: The study investigates the relationship between activity and acidity by incorporating Sulfamic acid with tin oxide, revealing an increase in surface acidity with increasing thermal treatment temperature, but a decrease with further calcination temperature increase. Lewis and Bronsted acid sites play important roles in catalytic activity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Environmental
Miguel Angel Marazuela, Giovanni Formentin, Klaus Erlmeier, Thilo Hofmann
Summary: This study assessed the persistence of the artificial sweetener acesulfame potassium (ACE) in wastewater treatment and the aquatic environment, and found it to be a useful tracer for wastewater inputs. ACE concentration was also found to be influenced by temperature, with higher concentrations observed in the cold season compared to the warm season.
Article
Environmental Sciences
Andrea L. Popp, Alvaro Pardo-Alvarez, Oliver S. Schilling, Andreas Scheidegger, Stephanie Musy, Morgan Peel, Philip Brunner, Roland Purtschert, Daniel Hunkeler, Rolf Kipfer
Summary: This study introduces a new approach to understand the relationship between groundwater mixing ratios and travel times using in-situ noble gas analyses. The results from a groundwater pumping test conducted in Switzerland demonstrate the importance of interpreting age dating tracers and the influence of different water sources on estimated travel times.
WATER RESOURCES RESEARCH
(2021)
Article
Environmental Sciences
N. K. LeRoux, B. L. Kurylyk, M. A. Briggs, D. J. Irvine, J. J. Tamborski, V. F. Bense
Summary: The study examines the application of heat tracing in coastal sediments with tidal head oscillations, finding that conventional methods may not accurately estimate flux variability within tidal cycles. However, numerical models incorporating dynamic hydraulic gradients and thermal signals can accurately assess high-frequency water flux time series, providing an opportunity to better understand sub-daily flux oscillations and associated reactive processes.
WATER RESOURCES RESEARCH
(2021)
Article
Polymer Science
Aleksandr S. S. Kazachenko, Natalia Yu. Vasilieva, Yaroslava D. D. Berezhnaya, Olga Yu. Fetisova, Valentina S. S. Borovkova, Yuriy N. N. Malyar, Irina G. G. Sudakova, Valentin V. V. Sychev, Noureddine Issaoui, Maxim A. A. Lutoshkin, Anton A. A. Karacharov
Summary: This study investigates the use of ion-exchange resins as catalysts for the sulfation of cellulose. It is found that anion exchangers form water-insoluble products, while cation exchangers form water-soluble products. Among the catalysts tested, Amberlite IR 120 is the most effective. The study also shows that an increase in sulfate groups in cellulose derivatives reduces thermal stability.
Article
Engineering, Environmental
Liping Tan, Tao Liu, Yimin Zhang, Nannan Xue, Pengcheng Hu
Summary: To address the issues with low saturated adsorption capacity and poor selective separation of vanadium and iron in vanadium shale acid leaching solution, a modified resin called DS418 resin was prepared by surface modification of D418 resin with sulfamic acid. Experimental results showed that DS418 resin had a saturated adsorption capacity of 112.36 mg/g, which was twice as much as that of D418 resin. Additionally, DS418 resin achieved a high adsorption rate of 92.19% for vanadium and a desorption rate of 98.37%.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Polymer Science
Xueyan Liu, Chuxing Zhu, Kang Yu, Wei Li, Yingchun Luo, Yi Dai, Hao Wang
Summary: This study presents an accurate method for determining the moisture content in flavor microcapsules using headspace gas chromatography. The method involves measuring the gas chromatography signals of water vapor in a headspace vial containing flavor microcapsules. The results showed good precision and accuracy, making it suitable for testing the moisture content of flavor microcapsules and related products.
Article
Engineering, Civil
Mark R. Williams, Scott J. McAfee
Summary: This research focused on quantifying hydrological processes in a drained landscape in Indiana, USA, using hydrometric data and stable isotope signatures. The study found that near-surface soil water reflected seasonal precipitation variations, while groundwater was recharged during winter. Groundwater was identified as the primary source of water to the tile drain, with hydrograph response controlled by antecedent wetness. Comparing tile drain celerities across environmental conditions revealed varying mechanisms controlling hydrograph response.
JOURNAL OF HYDROLOGY
(2021)
Article
Environmental Sciences
Danielle K. Hare, Susanne A. Benz, Barret L. Kurylyk, Zachary C. Johnson, Neil C. Terry, Ashley M. Helton
Summary: This study presents a web tool application called PASTA that analyzes paired air and stream temperature signals, using publicly available stream temperature data and large-scale climate observations, to evaluate spatiotemporal patterns in stream thermal sensitivity and relative groundwater influence. The tool fits sinusoidal curves of daily stream and air temperatures to indicate groundwater influence characteristics and performs linear regressions for stream versus air temperatures to indicate stream thermal sensitivity.
WATER RESOURCES RESEARCH
(2023)
Article
Water Resources
Hayley Wallace, E. J. Wexler, Spencer Malott, Clare E. Robinson
Summary: The study compared field measurements and model estimates of lacustrine groundwater discharge rates, emphasizing the importance of well-defined hydrogeological characteristics for regional scale model applications. Particle tracking analysis showed that groundwater discharge along different shoreline areas has varying potential to transport pollutants to the lake.
HYDROLOGICAL PROCESSES
(2021)
Article
Environmental Sciences
N. Roy, J. Molson, J. -M. Lemieux, D. Van Stempvoort, A. Nowamooz
WATER RESOURCES RESEARCH
(2016)
Article
Geosciences, Multidisciplinary
W. D. Robertson, D. R. Van Stempvoort, J. W. Roy, S. J. Brown, J. Spoelstra, S. L. Schiff, D. R. Rudolph, S. Danielescu, G. Graham
Article
Engineering, Environmental
Hyoun-Tae Hwang, S. K. Frey, Young-Jin Park, K. D. M. Pintar, D. R. Lapen, J. L. Thomas, J. Spoelstra, S. L. Schiff, S. J. Brown, E. A. Sudicky
Article
Environmental Sciences
D. R. Van Stempvoort, J. Struger, S. J. Brown
JOURNAL OF GREAT LAKES RESEARCH
(2019)
Article
Environmental Sciences
Dale R. Van Stempvoort, Susan J. Brown, Shirley Anne Smyth
Article
Engineering, Environmental
L. Mark Hewitt, James W. Roy, Steve J. Rowland, Greg Bickerton, Amila DeSilva, John Headley, Craig B. Milestone, Alan G. Scarlett, Susan Brown, Christine Spencer, Charles E. West, Kerry M. Peru, Lee Grapentine, Jason M. E. Ahad, Hooshang Pakdel, Richard A. Frank
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2020)
Article
Environmental Sciences
Dale R. Van Stempvoort, D. Ross MacKay, Susan J. Brown, Pamela Collins
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Engineering, Environmental
Dale R. Van Stempvoort, Susan J. Brown, John Spoelstra, Dorothy Garda, William D. Robertson, Shirley Anne Smyth
Article
Environmental Sciences
Victoria R. Propp, Amila O. De Silva, Christine Spencer, Susan J. Brown, Sara D. Catingan, James E. Smith, James W. Roy
Summary: The study found various CECs in leachate of historic landfills, with some landfills having PFAS concentrations similar to modern landfills and elevated levels of certain substances increasing with landfill age, indicating historic landfills may be long-term sources of CECs to groundwater.
ENVIRONMENTAL POLLUTION
(2021)
Article
Water Resources
Dale R. Van Stempvoort, D. Ross MacKay, Geoff Koehler, Pamela Collins, Susan J. Brown
Summary: This study establishes a well-defined and comprehensive conceptual model of the subsurface hydrology in TDADC, with seven key concepts being tested in a rural area in southern Ontario, Canada using data collection involving chemical and isotopes tracers in various water samples. The model covers the role of groundwater in baseflow, the dominance of 'pre-event' water in stormflow, and the importance of both macropores and matrix, among other factors.
HYDROLOGICAL PROCESSES
(2021)
Article
Environmental Sciences
Dale R. Van Stempvoort, William D. Robertson, Ross MacKay, Pamela Collins, Susan J. Brown, Serban Danielescu, Timothy Pascoe
Summary: This study addresses the role of groundwater in the nutrient balance for a restricted bay of a Precambrian Shield lake. The findings indicate seepage of septic plumes to the bay, but significant attenuation of septic-derived nutrients in the subsurface.
JOURNAL OF GREAT LAKES RESEARCH
(2021)
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)
