Article
Environmental Sciences
Ying Long, Lan Song, Yaqing Shu, Bing Li, Willie Peijnenburg, Chunmiao Zheng
Summary: Little information is available on the evolution of chemicals in terms of types, concentrations, and distribution over the years. This study aims to establish an emerging contaminants database in the pearl river basin by reviewing the spatial and temporal distribution of emerging contaminants with limited toxicology data. The findings show that seven groups of emerging contaminants are abundant in the region, with higher concentrations detected prior to 2011. Antibiotics, phenolic compounds, and acidic pharmaceuticals are prevalent in water, while phenolic compounds are a major concern in soil. Flame retardants and plastics are extensively studied in organisms. The fluctuation of field concentrations and frequencies over time renders the current data unsuitable for regulation purposes.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Environmental Sciences
Marianne Kock-Schulmeyer, Antoni Ginebreda, Mira Petrovic, Monica Giulivo, Oscar Aznar-Alemany, Ethel Eljarrat, Jennifer Valle-Sistac, Daniel Molins-Delgado, M. Silvia Diaz-Cruz, Luis Simon Monllor-Alcaraz, Nuria Guillem-Argiles, Elena Martinez, Lopez de Alda Miren, Marta Llorca, Marinella Farre, Juan Manuel Pena, Ladislav Mandaric, Sandra Perez, Bruno Majone, Alberto Bellin, Eleni Kalogianni, Nikolaos Th. Skoulikidis, Radmila Milacic, Damia Barcelo
Summary: The worldwide growing use of chemicals poses potential risks to human health and ecosystems. Mediterranean rivers differ from Northern and Central European rivers in terms of hydrological regime, climate conditions, and socio-economic factors, leading to variations in pollutant categories, water quality, and environmental fate.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Green & Sustainable Science & Technology
M. M. J. G. C. N. Jayasiri, Sudhir Yadav, N. D. K. Dayawansa, Catherine R. Propper, Virender Kumar, Grant R. Singleton
Summary: The excessive use of agrochemicals is leading to significant environmental deterioration, with water quality in Sri Lanka being heavily impacted by pesticide contamination, which varies greatly across seasons and locations.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Yiqing Zhang, Azhar Rashid, Shanshan Guo, Yuanchun Jing, Qiaoting Zeng, Yan Li, Bob Adyari, Jun Yang, Lina Tang, Chang-Ping Yu, Qian Sun
Summary: The distribution and fate of contaminants of emerging concern (CECs) in the Houxi River were studied in relation to hydrological conditions, land use characteristics, and spatial contiguity. It was found that land use types related to anthropogenic activities were positively correlated with the presence and concentration of CECs. Significant annual variations were observed in both the concentrations and detection frequencies of CECs, with higher concentrations and detection frequencies downstream compared to upstream. Spatial variations were mainly influenced by downstream sites, and strong spatial autocorrelation was observed among connected sites. The results provide valuable insights for policymakers in managing and prioritizing CEC contaminants in the Houxi watershed.
Article
Geosciences, Multidisciplinary
Mu Xiao, Dennis P. Lettenmaier
Summary: The study utilized a macroscale hydrology model and an atmospheric river catalog to evaluate snow accumulation in the Upper Colorado River basin affected by atmospheric rivers. It was found that most atmospheric rivers affecting UCRB first pass through the Sierra Nevada region, resulting in greater snow accumulation there.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Engineering, Environmental
Muhammad Mohsin, Juergen Pilz
Summary: Extreme weather changes globally lead to disasters like droughts. Developing probability models and long-term planning can reduce the detrimental effects of droughts. A new model for predicting interarrival times of droughts is proposed in this paper based on Bivariate Affine-Linear Exponential distribution, with reliable forecasting and estimation of return periods for future planning.
STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
(2021)
Article
Geosciences, Multidisciplinary
Subhrendu Gangopadhyay, Connie A. Woodhouse, Gregory J. McCabe, Cody C. Routson, David M. Meko
Summary: The ongoing drought in the Upper Colorado River Basin has been found to be extremely severe, especially when compared to the tree-ring records from as early as 762 CE. Using gridded drought-atlas data and streamflow data, researchers have developed a streamflow reconstruction model for the Lees Ferry gage, revealing a second-century drought that surpasses the severity of the current drought and documented medieval period droughts. Limited data also support the occurrence of this exceptional second-century drought through analysis of individual tree-ring records and other paleoclimatic data.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Environmental Sciences
Joane M. M. Correa, Ananda L. Sanson, Celia F. Machado, Sergio F. Aquino, Robson J. C. F. Afonso
Summary: This study used GC-MS to evaluate 12 emerging contaminants in surface water from Paraopeba River Basin. The results showed spatial distribution patterns of compounds and the impact of rainfall, and assessed the risk of human exposure.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Biodiversity Conservation
Lise Comte, Julian D. Olden, Stacy Lischka, Brett G. Dickson
Summary: Freshwater ecosystems are facing a severe biodiversity crisis, and it is crucial to develop reliable indicators to assess ecological integrity and identify specific threats and pathways of impairment. In this study, the Colorado River Basin is used as a case study to assess the ecological integrity of riverine ecosystems using a spatial framework that considers various human activities, pathways, and extent of influence. The study quantifies and maps threat indices for different stream segments and identifies disparities in terms of overall degree of threat and priorities for different parts of the Basin. The results demonstrate the potential of multi-faceted threat mapping in informing spatial planning decision processes and assessing ecological integrity in the absence of extensive in situ measurements.
ECOLOGICAL INDICATORS
(2022)
Article
Environmental Sciences
Jeongwoo Hwang, Hemant Kumar, Albert Ruhi, Arumugam Sankarasubramanian, Naresh Devineni
Summary: Dams have a significant impact on the frequencies of natural streamflow in highly regulated river networks, leading to changes in river flow regimes with varying trends along different sections of the river.
WATER RESOURCES RESEARCH
(2021)
Article
Environmental Sciences
Bingqing Sun, Jiaqiang Du, Fangfang Chong, Lijuan Li, Xiaoqian Zhu, Guangqing Zhai, Zebang Song, Jialin Mao
Summary: Using the Yellow River Basin as the study area, the changes in regional terrestrial ecosystem carbon storage were assessed and the main influencing factors were explored. The results showed that the total carbon storage in the basin in 2020 was approximately 8.84 x 10^9 t, with soil carbon storage accounting for the largest proportion. The forest ecosystem was the main contributor to the increase in carbon storage, and elevation, temperature, and precipitation were the main factors influencing the spatial pattern of carbon storage.
Article
Ecology
Li Wang, Jia Fu, Xiaopan Ji, Ping Tan, Yike Li
Summary: This study analyzed the spatio-temporal variations of wilderness and identified conservation priorities based on ecosystem services, using the Lhasa River Basin in the Qinghai-Tibet Plateau of China as an example. The results showed a persistent decline in wilderness from 1990 to 2020, with 33.56% of the remaining wilderness requiring special attention. These findings are of critical importance for future conservation strategies.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2023)
Article
Geography, Physical
Mengmeng Hong, Juanle Wang, Baomin Han
Summary: Under the pressure of SDG15.3.1 compliance, addressing land salinization degradation in the Yellow River Basin is crucial due to its role as China's granary. A salinization inversion model was constructed for each zoning unit in the basin based on geographical factors, and a feature space inversion process was utilized for automatic salinization inversion using the Google Earth Engine platform. The resulting salinization distribution maps of the basin in 2015 and 2020 were analyzed, along with the causes and spatiotemporal variations of salinization, leading to proposed prevention and control suggestions. This study can be expanded to larger and more complex geographical regions.
INTERNATIONAL JOURNAL OF DIGITAL EARTH
(2023)
Article
Geosciences, Multidisciplinary
Olivia L. Miller, Matthew P. Miller, Patrick C. Longley, Jay R. Alder, Lindsay A. Bearup, Tom Pruitt, Daniel K. Jones, Annie L. Putman, Christine A. Rumsey, Tim McKinney
Summary: This study provides estimates of projected baseflow changes in the Upper Colorado River Basin under different climatic conditions, showing potential declines in total baseflow supplied to the Lower Colorado River Basin, with a possible increase under warm/wet conditions. Additionally, the results highlight the impacts of climate-driven changes in high-elevation hydrology on basinwide water availability.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Review
Multidisciplinary Sciences
Aurora Ghirardelli, Paolo Tarolli, Mangalaa Kameswari Rajasekaran, Amogh Mudbhatkal, Mark G. Macklin, Roberta Masin
Summary: The Ganga basin is facing increasing anthropogenic pressure due to high demographic and economic growth rates. Despite the rise in human activities, the pollution status of the Ganga remains poorly understood. This systematic literature review highlights the prevalence of organic pollutants in surface water and sediment of the Ganga basin, with a focus on emerging contaminants and the need for more comprehensive studies in under-investigated areas.
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)