Article
Water Resources
Anja Hoehne, Karl Mellerowicz, Oliver Lischtschenko, Joerg Lewandowski
Summary: Understanding transport and biogeochemical turnover processes of solutes in riverine systems is essential for ecosystem health. The study presents a novel design concept for a robust fluorescence sensor system that can perform reproducible real-time in situ fluorescence measurements in sediment pore water. The prototype demonstrated robustness and suitability in laboratory and field settings, providing a basis for future sensor systems performing fluorescence spectroscopy analysis in sediment pore water in real time.
ADVANCES IN WATER RESOURCES
(2021)
Article
Engineering, Civil
M. Mencaroni, N. Dal Ferro, D. E. Radcliffe, F. Morari
Summary: A tracer experiment was conducted to estimate soil hydraulic and solute transport parameters, showing that changes in soil pore network and water flow field under shallow water table conditions affected preferential solute transport. Different solute dynamics were observed in contrasting water table managements, with potential implications for groundwater pollution.
JOURNAL OF HYDROLOGY
(2021)
Article
Environmental Sciences
Bo Zhou, Qiongying Liu, Shunyun Chen, Peixun Liu
Summary: This study uses 515 days of temperature data from four measurement points in the Kangding area of the eastern Tibetan Plateau to determine the spatial-temporal distribution of groundwater flow velocities using different heat tracing methods. The impact of thermal parameter uncertainties on flow velocity calculation is evaluated, and a comparison is made between phase, amplitude, and combined amplitude-phase methods. The results show that flow velocity is more affected by volumetric heat capacity than thermal conductivity, and the phase method is more suitable for calculations in the study area, with precipitation significantly impacting flow velocity, especially in areas with varied elevation.
Article
Engineering, Petroleum
Katarzyna Wojtowicz
Summary: The article focuses on the determination of colored fluorescent tracers in reservoir waters using spectrophotometric method, highlighting the sensitivity of fluorescein, rhodamine B, and uranine to changes in buffer pH. It recommends the use of stable tracer solutions and pH control during testing. The study also validates the analytical methods by plotting calibration curves and evaluating the linearity, standard deviation, and relative standard deviation of the tested tracers.
Article
Environmental Sciences
Michael Schubert, Jan Scholten, Matthias Kreuzburg, Eric Petermann, Mariele Lopes de Paiva, Dennis Kohler, Volker Liebetrau, John Rapaglia, Michael Schluter
Summary: This paper evaluates the causes and effects of the failure of the radon approach at a distinct shallow wind-exposed location in the Baltic Sea. The study finds that wind speed and direction have a severe impact on coastal radon distribution patterns in coastal areas dominated by gentle submarine slopes and shallow waters, thus hindering their use for submarine groundwater discharge investigation.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
Article
Engineering, Chemical
Chunli Han, Yubin Wang, Jian Deng, Guangsheng Luo
Summary: In this study, molecular-level amphiphilic tracer particles were synthesized using a continuous-flow microreaction system. These particles were successfully dispersed uniformly in both aqueous and oil phases, and used for measuring velocity profiles in a two-phase flow field.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Geochemistry & Geophysics
J. Michael Martin, Mark E. Everett, Peter S. K. Knappett, Ryan C. Ewing
Summary: Preferential flow between rivers and aquifers in alluvial floodplains plays a key role in shallow groundwater transport, which is crucial for modeling and managing groundwater resources. A sand-dominated structure was observed in a clay wedge separating streamflow and bank storage from an adjacent shallow aquifer. Time-lapse electrical resistivity tomography revealed dynamic changes in electrical resistivity, indicating the presence of preferential flow. This research demonstrates that sand conduits can transport water between the floodplain, river, and shallow aquifer, influencing the regulation and distribution of water, sediments, and contaminants.
NEAR SURFACE GEOPHYSICS
(2023)
Article
Environmental Sciences
Michael Schubert, Kay Knoeller, Jan Scholten, L. Walter Daessle, Mauricio M. Reyes Bravo, Efrain M. Chavez Solis
Summary: This study investigated the submarine groundwater discharge (SGD) into a vulnerable coastal lagoon strongly impacted by evaporation using a multi-tracer approach. The results showed that the radon mass balance method is suitable for localizing and quantifying SGD fluxes in shallow coastal lagoons affected by evaporation. However, the use of water stable isotopes and salinity as SGD indicators was impeded by evaporation. The study also demonstrated the importance of considering tidal impact when conducting sampling campaigns in lagoon water bodies.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Immunology
A. Rodriguez-Pedrouzo, J. Cisneros-Sureda, D. Martinez-Matamoros, D. Rey-Varela, M. Balado, J. Rodriguez, M. L. Lemos, M. Folgueira, C. Jimenez
Summary: Zebrafish is an excellent model for studying bacterial infections in fish. This study used zebrafish as a model to investigate the infection process of Aeromonas salmonicida in fish and evaluated the use of fluorescence microscopy to track the infection in vivo.
MICROBIAL PATHOGENESIS
(2023)
Article
Water Resources
Nariman Mahmoodi, Paul D. Wagner, Jens Kiesel, Nicola Fohrer
Summary: The study assesses the impacts of climate change on streamflow in the Wadi Halilrood Basin in southeastern Iran, finding a slight increase in streamflow in January and March, but decreases in high flow and water yield are projected for future periods. Evapotranspiration is estimated to increase slightly, while water yield is expected to substantially decrease.
JOURNAL OF WATER AND CLIMATE CHANGE
(2021)
Article
Water Resources
Tibebe B. Tigabu, Paul D. Wagner, Georg Hoermann, Jens Kiesel, Nicola Fohrer
Summary: This study assesses the impact of climate change on groundwater contribution to streamflow and other major water balance components in two tributary catchments of Lake Tana in Ethiopia. Results show that groundwater contribution is projected to decrease while surface runoff is projected to increase, indicating that relying solely on rainfall trends may not accurately reflect future water availability.
JOURNAL OF WATER AND CLIMATE CHANGE
(2021)
Article
Biodiversity Conservation
Chaogui Lei, Paul D. Wagner, Nicola Fohrer
Summary: The influence of catchment characteristics on water quality varies with space and time, with soil properties, land use composition, and configuration being key factors. Spatial variation of water quality is better explained at larger scales and in summer, with different important variables at different scales and for different water quality variables.
ECOLOGICAL INDICATORS
(2021)
Article
Environmental Sciences
Uta Ulrich, Matthias Pfannerstill, Guido Ostendorp, Nicola Fohrer
Summary: The research on the environmental fate of pesticides showed that transformation products of herbicides were more widespread and in higher concentrations than their parent compounds in various water bodies. Particularly, metazachlor sulfonic acid, metazachlor oxalic acid, and flufenacet oxalic acid were detected in almost every drainage and stream sample. This transformation process leads to more mobile and persistent molecules, causing higher detection frequencies and concentrations, even occurring a year or more after application. Vulnerability of shallow groundwater and private drinking water wells to leaching compounds was proven by detection of metazachlor-TP.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Lishani Wijewardene, Naicheng Wu, Yueming Qu, Kun Guo, Beata Messyasz, Stefan Lorenz, Tenna Riis, Uta Ulrich, Nicola Fohrer
Summary: Agrochemicals such as pesticides and nutrients play a significant role in shaping the species composition and functional features of phytoplankton communities in freshwater aquatic ecosystems. Local environmental variables have the highest impact on phytoplankton composition, followed by nutrients and pesticide toxicity. Functional diversity and redundancy of phytoplankton communities are affected by pesticide toxicity and nutrient concentrations, highlighting the importance of multiple stressors on aquatic ecosystems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Antonia J. McGinn, Paul D. Wagner, Htike Htike, Khin Kyu Kyu, Nicola Fohrer
Summary: This study investigates the changes in land and water resources of the Chindwin River catchment in Myanmar over a twenty-year period. The findings show a decrease in forest area, a decrease in agricultural area, and an increase in settlement and mining areas. The hydrologic model analysis reveals that the decrease in forests leads to a decrease in evapotranspiration and an increase in water yield, while the increase in mining areas contributes to an increase in water yield.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Xiuming Sun, Naicheng Wu, Georg Hoermann, Claas Faber, Beata Messyasz, Yueming Qu, Nicola Fohrer
Summary: With the increasing demand for assessing ecological status, understanding the relationship between planktic diversity and environmental factors is crucial. The study introduced a new index, the first ordination value from NMDS, to represent community similarity variance. Results highlighted antecedent precipitation index as the main hydrological variable and water temperature, Si2+, and PO4-P as key chemical controlling factors influencing diatom community variation in agricultural rivers. The generalized linear models showed better prediction for Shannon index and NMDS, emphasizing their importance in explaining the relationship between stream biota and environmental factors.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Xiaonuo Chen, Xiaojun Wang, Yuying Li, Yinlei Yao, Yun Zhang, Yeqing Jiang, Xiaohui Lei, Han Liu, Naicheng Wu, Nicola Fohrer
Summary: This study investigated the changes in periphyton community and environmental factors in an artificial canal, and found that seasonal variability was more significant, with Bacillariophyta being the dominant phylum and water temperature and nutrient concentration being the key factors.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Editorial Material
Water Resources
Nicola Fohrer, Paul D. Wagner, Jens Kiesel, Marcelo Haas, Bjoern Guse
HYDROLOGICAL PROCESSES
(2022)
Article
Environmental Sciences
Zhenyu Zhang, Georg Hoermann, Jinliang Huang, Nicola Fohrer
Summary: Understanding land use/cover change (LUCC) in watersheds is crucial for sustainable development. The machine learning-based CA-Markov model comprehensively evaluates the factors influencing LUCC, identifies patterns under different scenarios, and can serve as a helpful tool for watershed management.
Article
Environmental Studies
Mehdi Aalipour, Naicheng Wu, Nicola Fohrer, Yusef Kianpoor Kalkhajeh, Bahman Jabbarian Amiri
Summary: Changes in land use and land cover significantly influence river water quality. This study utilized spatial data from 39 catchments in the southern basin of the Caspian Sea to investigate the impact of landscape structure on water quality. The findings reveal that landscape structure metrics, particularly the shape index, contiguity index, and fractal metric, can predict variations in total dissolved solids (TDS) and magnesium (Mg) concentrations. Optimizing landscape structure metrics in land use planning can help reduce river pollution and improve water quality.
Article
Geosciences, Multidisciplinary
Nariman Mahmoodi, Jens Kiesel, Paul D. Wagner, Nicola Fohrer
Summary: This study analyzes the impact of groundwater demand and climate change on groundwater sustainability and hydrologic regime alterations in a wadi system in central Iran. Results suggest that groundwater recharge is expected to decrease in the far future scenario, which may not meet the increasing water demand.
HYDROLOGY AND EARTH SYSTEM SCIENCES
(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)