Article
Engineering, Civil
Michael G. Hutchins, Yueming Qu, Matthew B. Charlton
Summary: The study found that local hydrological information is essential for successful simulation of river water quality. The use of local knowledge significantly improves goodness-of-fit statistics in simulating dissolved oxygen and water temperature. This highlights the importance of incorporating local information for accurate water quality modeling.
JOURNAL OF HYDROLOGY
(2021)
Article
Environmental Sciences
Chakresh Kumar, Anwesha Ghosh, Yash, Manojit Debnath, Punyasloke Bhadury
Summary: This study monitored nine sites along the lower stretch of the River Ganga to understand the impact of untreated sewage and pollutants on water quality during monsoonal precipitation. The environmental variables such as water temperature, dissolved oxygen, pH, and TDS were influenced by the monsoon, with higher levels of dissolved nutrients observed in point source stations. The Water Quality Index values revealed poor water quality in most stations, showing no significant influence from monsoonal precipitation.
ENVIRONMENTAL RESEARCH COMMUNICATIONS
(2021)
Article
Environmental Sciences
Jesus Pablo Garcia-Cambero, Cristina Corpa, Miguel Angel Lucena, Paloma Mendez, Pilar Sierra, David Galan-Madruga, Sonia Aguayo
Summary: This study analyzed and monitored DCF, E2, and EE2 in the Manzanares River in Madrid, Spain. It found that while E2 and EE2 levels were within reported ranges, DCF levels were higher. Zebrafish embryos exposed to the river water showed lethal and sublethal effects, but these were not primarily attributed to the levels of DCF, E2, and EE2 present in the river.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Environmental
Sameer Arora, Ashok K. Keshari
Summary: Dissolved oxygen is a key parameter in assessing river water quality, and machine learning techniques are valuable tools for predicting and simulating water quality parameters. A study in the Delhi stretch of Yamuna River showed that the ANFIS-GP model outperformed the ANFIS-SC model in accurately predicting dissolved oxygen levels.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Xi Chen, Maryna Strokal, Michelle T. H. van Vliet, Xing Fu, Mengru Wang, Lin Ma, Carolien Kroeze
Summary: Nutrient pollution is a widespread issue in rivers in China. This study aims to quantify the spatial variation in in-stream water quality for nutrients and identify their associated sources. The results show that a certain percentage of rivers are highly polluted, with diffuses sources and point sources contributing differently. It is important to consider nutrient forms in models and monitoring programs.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Green & Sustainable Science & Technology
Diana Yaritza Dorado-Guerra, Javier Paredes-Arquiola, Miguel Angel Perez-Martin, Harold Tafur Hermann
Summary: High nutrient discharge from groundwater into surface water has multiple undesirable effects on river water quality, especially in terms of nitrate concentration that is closely related to surface water-groundwater interactions. Anthropogenic activities contribute to higher nitrate concentrations downstream of the river basin, mainly due to diffuse pollution.
Article
Environmental Sciences
F. J. Lopez, E. Pitarch, A. . Botero-Coy, D. Fabregat-Safont, M. Ibanez, J. M. Marin, A. Peruga, N. Ontanon, S. Martinez-Morcillo, A. Olalla, Y. Valcarcel, I. Varo, F. Hernandez
Summary: The study investigated the impact of a wastewater treatment plant from Madrid on the aquatic environment, focusing on pharmaceuticals and pesticides, including their removal efficiency from the water. Results showed that the effluent from the treatment plant had an impact on the water quality of the Manzanares River, with certain pharmaceuticals posing potential risks to aquatic organisms.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Bindu Sulochanan, Lavanya Ratheesh, S. Veena, Shelton Padua, D. Prema, Prathibha Rohit, P. Kaladharan, V Kripa
Summary: Restoration of Rhizophora mucronata stand in the Gurupura Estuary improved water and sediment quality. Increased salinity duration promoted barnacle growth in planted mangroves, but decreased survival rate. The natural mangrove site in Shambavi River had the highest water quality rating, with dissolved inorganic phosphorous being the highest due to non-point pollution sources. These findings suggest that land use management and mangrove restoration can enhance estuarine water quality.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Jia Xing Loi, Adeline Seak May Chua, Mohamad Fairus Rabuni, Chee Keong Tan, Sai Hin Lai, Yasuyuki Takemura, Kazuaki Syutsubo
Summary: This study applied chemometrics to analyze water quality data from three major river basins in Selangor, Malaysia. The results showed spatial and periodic variations in pollution characteristics. Nitrogen species, total suspended solids, and dissolved solids were identified as the major pollution loads, with a significant increasing trend in ammonia pollution. The study highlights the vulnerability of Selangor's water resource system to water pollution and suggests incorporating ammonia treatment facilities into water treatment plants for smooth water supply operations.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Richard J. Cooper, Kevin M. Hiscock
Summary: The EU Water Framework Directive (WFD) is considered a milestone in environmental legislation, but many European water bodies still fail to meet its ambitious goals. This study focuses on the impact of the WFD on the River Wensum in eastern England. By analyzing water quality data from 2000 to 2022, it reveals improvements in wastewater treatment but a deterioration in agricultural pollution indicators. Concentration spikes of organic chemical contaminants and changes in discharge increase the risk of riverine pollution. Despite achieving good or high water quality status for some indicators, compliance with WFD goals for phosphorus and nitrogen is low and projected to persist due to legacy stores and climate change effects.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
William Battaglin, Paul Bradley, Rebecca Weissinger, Brett Blackwell, Jenna Cavallin, Dan Villeneuve, Laura Decicco, Julie Kinsey
Summary: Long-term water-quality monitoring on the Colorado River downstream from Moab Utah revealed the presence of Bioactive Chemicals (BC), such as pesticides and pharmaceuticals. A study was conducted to investigate the impact of a new wastewater treatment plant (WWTP) on BC input to the river. The results showed that the new plant reduced the concentrations of nutrients, hormones, pharmaceuticals, and other BC. The study highlights the effectiveness of improved WWTP technology in reducing both regulated and non-regulated contaminants in the water.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Yadav Sapkota, Sibel Bargu, John R. White
Summary: In 2016, warm air temperatures and high precipitation led to historically early river flood pulse in the Mississippi River, triggering the opening of a flood release valve to protect New Orleans. This research aimed to examine the ecosystem response of this wintertime nutrient flood pulse compared to historical events that occurred months later.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Isabel Echeverribar, Pablo Valles, Juan Mairal, Pilar Garcia-Navarro
Summary: In the simulation of the Ebro River in Spain, it was found that the 1D model was more computationally efficient compared to the 2D model, especially for specific reservoir conditions. Coupling the 1D and 0D models can improve computational efficiency while still producing accurate results, even when controlled by an automatic regulation algorithm.
Article
Geochemistry & Geophysics
Philippe Negrel, Emmanuelle Petelet-Giraud, Catherine Guerrot, Romain Millot
Summary: The Ebro River, one of the largest contributors of freshwater to the Mediterranean, flows through carbonate rocks and evaporites in its basin. Variations in Ca and Sr isotopes reflect the sources and geochemical processes of the river and its tributaries.
Article
Agronomy
Lidia Dzierzbicka-Glowacka, Dawid Dybowski, Maciej Janecki, Ewa Wojciechowska, Beata Szymczycha, Dawid Potrykus, Artur Nowicki, Adam Szymkiewicz, Piotr Zima, Beata Jaworska-Szulc, Stefan Pietrzak, Grazyna Pazikowska-Sapota, Dominika Kalinowska, Nicole Nawrot, Pawel Wielgat, Grazyna Dembska, Karolina Matej-Lukowicz, Katarzyna Szczepanska, Tadeusz Puszkarczuk
Summary: The changes in marine coastal zones are of great significance due to the increasing human population living in these areas. This study presents an innovative toolkit that allows researchers to identify and assess the sources of nutrient and pesticide pollution, calculate their flux, and evaluate their influence on the coastal ecosystem.
AGRICULTURAL WATER MANAGEMENT
(2022)
Article
Water Resources
Antonio Bolinches, Lucia De Stefano, Javier Paredes-Arquiola
HYDROLOGICAL SCIENCES JOURNAL
(2020)
Article
Environmental Sciences
Jesus Pardo-Loaiza, Abel Solera, Rafael J. Bergillos, Javier Paredes-Arquiola, Joaquin Andreu
Summary: Assessing the health of hydrological systems is crucial for the conservation of river ecosystems, with indicators of hydrologic alteration being widely used parameters. This study proposes a methodology to estimate these indicators at the basin scale in regulated systems, illustrated through a case study in the Duero River basin. The results show the possibility of improving the hydrological status of certain subsystems without affecting water demand supplies, aiding decision makers in optimizing water management and enhancing river basins' hydrological conditions.
Article
Green & Sustainable Science & Technology
Diana Yaritza Dorado-Guerra, Javier Paredes-Arquiola, Miguel Angel Perez-Martin, Harold Tafur Hermann
Summary: High nutrient discharge from groundwater into surface water has multiple undesirable effects on river water quality, especially in terms of nitrate concentration that is closely related to surface water-groundwater interactions. Anthropogenic activities contribute to higher nitrate concentrations downstream of the river basin, mainly due to diffuse pollution.
Article
Geosciences, Multidisciplinary
Sara Suarez-Alminana, Joaquin Andreu, Abel Solera, Jaime Madrigal
Summary: This study proposed several approaches for real-time drought management to improve the predictive capacity of currently used methodologies, and validated them in the Jucar River Basin. The results showed that using seasonal forecasts can significantly enhance the predictive capacity of drought prediction, especially when using the ARMAX and ANN models.
INTERNATIONAL JOURNAL OF DISASTER RISK REDUCTION
(2022)
Article
Environmental Sciences
Andres Sahuquillo, Eduardo Cassiraga, J. Jaime Gomez-Hernandez, Joaquin Andreu, Manuel Pulido-Velazquez, David Pulido-Velazquez, Oscar D. Alvarez-Villa, Teodoro Estrela
Summary: Aquifers are widely available and easy to access, but their overexploitation can lead to significant issues such as declining water levels, reduced river flows, seawater intrusion, and wetland degradation. The conjunctive use of surface and subsurface waters through strategies like artificial recharge and alternate conjunctive use can help mitigate these problems and provide economic and environmental benefits.
Article
Environmental Sciences
Joel Hernandez-Bedolla, Abel Solera, Javier Paredes-Arquiola, Sonia Tatiana Sanchez-Quispe, Constantino Dominguez-Sanchez
Summary: This study developed a novel stochastic model to analyze the impact of temperature and precipitation on river basins, and conducted a case study on the Jucar River Basin in Spain. We used a Markov model to determine daily rainfall occurrences and developed a multisite multivariate autoregressive model to represent the short-term memory of temperature. The reduction of parameters and normalization of temperature were important factors in this approach.
Article
Environmental Sciences
Jesus Pardo-Loaiza, Rafael J. Bergillos, Abel Solera, Javier Paredes-Arquiola, Joaquin Andreu
Summary: This article presents a novel methodology to assess the spatial and temporal variations of water resources exploitation within regulated river basins. It highlights the importance of basin management models in accurately estimating the spatial variability of the water exploitation index and the effects of environmental flows on water availability and consumed water resources. The study reveals the necessity of regulating water resources to meet the demands of the basin throughout the year, and the significant impact of environmental flows on water stress levels.
Article
Environmental Sciences
Jheimy Pacheco, Abel Solera, Alex Aviles, Maria Dolores Tonon
Summary: This study analyzed the relationships between droughts, vegetation, and El Nino-Southern Oscillation (ENSO) in a sub-basin of the tropical Andes. The results showed significant negative correlations between meteorological drought and vegetation, with ENSO playing a major role in this relationship.
Article
Environmental Sciences
Diana Yaritza Dorado-Guerra, Gerald Corzo-Perez, Javier Paredes-Arquiola, Miguel Angel Perez-Martin
Summary: Aquifer-stream interactions have a significant impact on water quality in Mediterranean areas. Machine learning models, such as random forest and XGBoost, combined with feature selection methods, can effectively simulate nitrate concentration in Mediterranean streams. These models can identify the main drivers of nitrate pollution and provide a holistic approach for analyzing the ecological, hydrological, and environmental variables that influence water quality. The models achieved high accuracy in predicting nitrate concentration in surface water and allowed the observation of different relationships between drivers. This research provides a valuable tool for identifying and addressing pollution risks in specific areas.
ENVIRONMENTAL RESEARCH COMMUNICATIONS
(2022)
Article
Engineering, Civil
Christiand Olortegui Artica, Javier Paredes Arquiola, Lia Ramos Fernandez, Camila Leandra Cruz Grimaldo, Wilian Salazar Coronel, Lisveth Flores del Pino
Summary: This study used reliability indicators to simulate management scenarios in the Lurin River Basin and proposed suggestions for improving water resource management in the area.
AQUA-WATER INFRASTRUCTURE ECOSYSTEMS AND SOCIETY
(2023)
Article
Environmental Sciences
Diana Yaritza Dorado-Guerra, Javier Paredes-Arquiola, Miguel Angel Perez-Martin, Gerald Corzo-Perez, Liliana Rios-Rojas
Summary: This study aims to assess the impact of climate change on surface water quality, evaluate the relationship between water quality and flow, and simulate pollution reduction scenarios. Based on climate change scenarios, SW with poor nitrate, ammonium, phosphorus, and BOD5 status is expected to increase in the future, requiring additional measures to maintain the current state of water bodies.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Civil
S. Suarez-Alminana, J. Paredes-Arquiola, J. Andreu, A. Solera
Summary: This study analyzes the impact of climate change on water quality in the Jucar River Basin through future estimations of hydrological inputs and water temperature. Results indicate that in the future horizons of 2050 and 2080, a greater number of water bodies in the middle and lower parts of the basin will exhibit higher pollution levels, with degradation of BDO5 and NH4+ being highly dependent on water temperature.
INGENIERIA DEL AGUA
(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)