Article
Environmental Sciences
Kristina G. Hopkins, Jacqueline S. Welles, Emily J. Pindilli, Gregory B. Noe, Peter R. Claggett, Labeeb Ahmed, Marina J. Metes
Summary: Floodplains provide critical ecosystem services by regulating floodwaters and retaining sediments and nutrients. A study was conducted to quantify the services that floodplains provide to downstream communities within the Chesapeake Bay and Delaware River watersheds. The study included the quantification and valuation of sediment and nutrient retention, as well as flood regulation services provided by floodplains.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Zi Xun Kua, Cassandra M. Davis, Lauren A. Townley, John C. Stella, Stephen B. Shaw
Summary: Despite the lack of studies using directly observed data to evaluate the effectiveness of agricultural best management practices (BMPs) at the watershed scale, this study used extensive ambient water quality data, stream biotic health data, and BMP implementation data in the Chesapeake Bay watershed to assess the role of BMPs. The results showed that BMPs had a small but discernible contribution in reducing total phosphorus, but did not show clear contributions in reducing total nitrogen. The study also found limited connection between extent of BMP implementation and biotic health, highlighting the need for better monitoring design.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Ecology
Donald Scavia, Isabella Bertani, Jeremy M. Testa, Aaron J. Bever, Joel D. Blomquist, Marjorie A. M. Friedrichs, Lewis C. Linker, Bruce D. Michael, Rebecca R. Murphy, Gary W. Shenk
Summary: This study highlights the importance of ecological forecasting as a tool for ecosystem management, emphasizing the integration of multiple data sources, quantification of uncertainties, and adoption of flexible frameworks to improve predictive accuracy and management relevance. Through a case study in the Chesapeake Bay, it is found that the selection of forecast metrics and drivers significantly impacts the results, and the importance of measurement error in predictions is also emphasized.
ECOLOGICAL APPLICATIONS
(2021)
Article
Water Resources
Zachary J. Clifton, Matthew J. Cashman, Allen C. Gellis, Michelle P. Katoski, Lucas A. Nibert, Gregory B. Noe
Summary: This study used a sediment budget approach to determine the sources, storage, and delivery of sediment in the Smith Creek watershed. The results showed that streambanks and pastures were major sources of sediment. The study also indicated that the storage of sediment in the watershed may have been underestimated due to unaccounted geomorphic features. The findings provide a framework for managers to address the sediment problem in Smith Creek and similar tributaries to the Chesapeake Bay.
HYDROLOGICAL PROCESSES
(2022)
Article
Environmental Sciences
W. R. Boynton, M. A. C. Ceballos, C. L. S. Hodgkins, D. Liang, J. M. Testa
Summary: This study conducted measurements of sediment-water fluxes in Chesapeake Bay and Maryland Coastal Bays, and analyzed the primary controlling factors and relative contribution of sediment-water fluxes to nutrient cycling. Hotspots for sediment-water fluxes were identified, and statistical models showed that temperature, bottom water oxygen and nutrient concentration, and sediment organic matter were important controlling variables. Long-term variations in fluxes exhibited weak evidence of trends, while interannual variability was related to water column and sediment variables. Additionally, the importance of recycled nutrients in these shallow systems was revealed.
ESTUARIES AND COASTS
(2023)
Article
Environmental Sciences
C. Krahforst, L. A. Sherman, K. Kehm
Summary: Trace metals in sediments from the Chester River were investigated to understand their distributions and potential sources. The concentrations of lead, arsenic, nickel, chromium, and copper exceeded sediment toxicity guidelines in a significant proportion of samples. Enrichment factors for cadmium, silver, lead, arsenic, and zinc were elevated above natural background levels. Nickel, copper, zinc, and cadmium showed significant differences in enrichment factors between different segments of the river. Cadmium and arsenic enrichments were most likely from the application of fertilizers in the watershed, while active marinas were identified as important sources of metal enrichment, especially for copper.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
C. E. Renshaw, E. N. Dethier, J. D. Landis, J. M. Kaste
Summary: The input of organic matter into stream channels is an important energy source for headwater ecosystems and plays a crucial role in the global carbon cycle. The study focuses on quantifying the mobilization, transport, and storage of organic-rich fine sediment in a Strahler fourth-order stream during intermediate-sized storm events. It is found that the channel bed is consistently a source of suspended load to the channel margins, and the trapping of suspended load by riparian margins limits sediment transport distance and decouples the channel from local terrestrial organic matter exchange.
WATER RESOURCES RESEARCH
(2022)
Article
Environmental Sciences
Yuichi Horii, Kotaro Minomo, James C. W. Lam, Nobuyoshi Yamashita
Summary: The study investigated mass loading and spatial distribution of volatile methylsiloxanes (VMSs) in Tokyo Bay, Japan, revealing elevated mass loadings of VMSs in certain rivers inflowing to the bay. The historical pollution profiles of VMSs in estuarine sediments suggest a correlation with the historical use of VMSs and potential impact on the aquatic environment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Arghajeet Saha, Gourab K. K. Saha, Raj Cibin, Sheri Spiegal, Peter J. A. Kleinman, Tamie L. L. Veith, Charles. M. White, Patrick. J. Drohan, Teferi Tsegaye
Summary: Manureshed management aims to guide the sustainable use of manure resources by matching crop demand areas with areas generating livestock manure. This study quantified the potential water quality benefits of manureshed-oriented management in the Susquehanna River Basin through scenario-based analyses. Different manureshed management scenarios were compared with a business-as-usual scenario, and phosphorus-based management was found to be more effective in improving water quality.
JOURNAL OF ENVIRONMENTAL QUALITY
(2023)
Article
Environmental Sciences
Dao Nguyen Khoi, Pham Thi Loi, Nguyen Thi Thuy Trang, Nguyen Dinh Vuong, Shibo Fang, Pham Thi Thao Nhi
Summary: The study addressed the impact of climate variability and land-use change on streamflow and pollutant loadings in the 3S River Basin over a 30-year period. Climate variability was found to have a significant effect on streamflow and pollutant loadings, with the Sekong and Srepok River Basins showing stronger responses to climate variability compared to land-use change. The findings of the study provide valuable information for decision makers in developing sustainable water resources management strategies.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Warit Charoenlerkthawin, Matharit Namsai, Komkrit Bidorn, Chaipant Rukvichai, Balamurugan Panneerselvam, Butsawan Bidorn
Summary: The Wang River is a major tributary of the Chao Phraya River in Thailand, providing sediment to the Chao Phraya Delta. Three major dams along the river impact sediment load differently, with downstream sediment reduction countered by sediment supply from the lower basin. The location of dams and sediment load variation along the river are key factors influencing the impact of dam construction.
Article
Green & Sustainable Science & Technology
Ebenezer Boakye, F. O. K. Anyemedu, Emmanuel A. Donkor, Jonathan A. Quaye-Ballard
Summary: Accurate information on sediment yield in the Pra River Basin, Ghana is crucial for proper catchment and water resources management. This study found high sediment yields in the basin, with significant differences between contributing drainage basins. Rivers in galamsey prone basins had higher sediment pollution levels. The study highlights the importance of considering land use activities and catchment characteristics in predicting sediment yield variations.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2022)
Article
Environmental Sciences
Aaron Ridall, Jeroen Ingels
Summary: Wastewater treatment plants are responsible for around 25% of microplastics in the marine environment. A study conducted in the St. Andrew Bay system in Northwestern Florida assessed the abundance of microplastics in sediments at wastewater treatment plant outflow sites and non-polluted sites over six seasons. The study found that microplastic abundances were highest at a wastewater treatment plant site and increased with distance from the input source. Additionally, microplastic abundances showed seasonal dynamics, with the highest abundance in winter and the lowest in spring. The findings highlight the importance of understanding and addressing microplastic pollution in coastal ecosystems, particularly in the face of climate change.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Feiyang Xia, Quanwei Yao, Jun Zhang, Dunqiu Wang
Summary: This study investigated the occurrence and seasonal variation of microplastics in the sediments of Liangfeng River in China. Results showed higher abundance of microplastics in sediments during the dry season compared to the rainy season, with polyethylene being the most abundant polymer. Small-sized microplastics can potentially migrate and redistribute via resuspension at different temporal and spatial scales.
ENVIRONMENTAL POLLUTION
(2021)
Article
Limnology
Long Jiang, Xinyu Lu, Guifen Wang, Mo Peng, Aihong Wei, Yonggang Zhao, Karline Soetaert
Summary: This study investigated the impacts of anthropogenic activities and hydrological factors on nutrient loading in the Jiangsu coastal waters of China. The results showed that anthropogenic nutrient loading had a greater influence on the interannual nutrient variability compared to hydrological factors. The study also highlighted the importance of considering human stress in assessing water quality and implementing restoration efforts in eutrophic ecosystems.
LIMNOLOGY AND OCEANOGRAPHY
(2023)
Article
Environmental Sciences
Jeremy M. Testa, Vyacheslav Lyubchich, Qian Zhang
ESTUARIES AND COASTS
(2019)
Article
Limnology
Vincent Roubeix, Camille Minaudo, Jordi Prats, Nathalie Reynaud, Qian Zhang, Florentina Moatar, Pierre-Alain Danis
Review
Environmental Sciences
Gregory B. Noe, Matthew J. Cashman, Katie Skalak, Allen Gellis, Kristina G. Hopkins, Doug Moyer, James Webber, Adam Benthem, Kelly Maloney, John Brakebill, Andrew Sekellick, Mike Langland, Qian Zhang, Gary Shenk, Jeni Keisman, Cliff Hupp
WILEY INTERDISCIPLINARY REVIEWS-WATER
(2020)
Article
Environmental Sciences
Heather E. Preisendanz, Tamie L. Veith, Qian Zhang, James Shortle
Summary: The study reveals significant temporal inequality in nutrient and sediment transport across the Chesapeake Bay watershed, with greater inequality for total phosphorus and total suspended sediment compared to total nitrogen and flow. These findings emphasize the importance of targeting specific time periods and flow conditions to achieve load reduction goals in impaired watersheds. The proposed 'temporal targeting framework' provides a useful and convenient method for watershed planners to create load targeting tables specific to a watershed and constituent.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Engineering, Environmental
Qian Zhang, Thomas R. Fisher, Emily M. Trentacoste, Claire Buchanan, Anne B. Gustafson, Renee Karrh, Rebecca R. Murphy, Jennifer Keisman, Cuiyin Wu, Richard Tian, Jeremy M. Testa, Peter J. Tango
Summary: Understanding the temporal and spatial roles of nutrient limitation is crucial for successful management strategies in Chesapeake Bay. Analysis of historical data shows expanded areas of nitrogen limitation and reduced nutrient saturation in response to long-term reductions in nitrogen load. However, nutrient limitation patterns remain largely unchanged in the majority of the mainstem, indicating the need for further reduction in nutrient loads to achieve a less nutrient-saturated ecosystem.
Article
Environmental Sciences
Qian Zhang, James S. Webber, Douglas L. Moyer, Jeffrey G. Chanat
Summary: The FN2Q approach is an extension of the flow-normalization procedure of the well-established WRTDS method, providing daily estimates of low-flow and high-flow FN flux for summarizing trends in river water quality. Application of the method to the South Fork Shenandoah River shows a decline in total nitrogen flux, primarily driven by a decrease in low-flow class, which is correlated with wastewater effluent loads. The high-flow flux exhibited a spike around 2007, likely due to increased delivery of particulate nitrogen associated with sediment transport.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
S. Y. Chang, Q. Zhang, D. K. Byrnes, N. B. Basu, K. J. Van Meter
Summary: Efforts to reduce nitrogen inputs in the Chesapeake Bay have shown some progress, with recent improvements in water quality attributed to decreases in nitrogen surplus magnitudes. Despite slow improvement, goals to reduce nitrogen loads by 25% across the region may be met within the next two decades even with no additional changes in current management practices. Time lags in achieving water quality goals may vary across different watersheds, with the longest delays seen in highly agricultural areas where legacy nitrogen continues to impact water quality.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Engineering, Environmental
Rebecca R. Murphy, Jennifer Keisman, Jon Harcum, Renee R. Karrh, Mike Lane, Elgin S. Perry, Qian Zhang
Summary: The study finds that nutrient loads in Chesapeake Bay are mostly improving after accounting for variations in freshwater flow, with reductions from nearby point sources slightly more effective in explaining estuarine nutrient trends than reductions from rivers. Both types of loads from multiple locations across the watershed are together necessary and responsible for the improving estuarine nutrient conditions.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Qian Zhang, Joel T. Bostic, Robert D. Sabo
Summary: This study combines clustering and classification methods to investigate the regional patterns and drivers of total nitrogen trends in the Chesapeake Bay Non-Tidal Monitoring Network. Results show that improved agricultural nutrient management has led to declines in agricultural nonpoint sources and water-quality improvement. The developed models are also used to predict fine spatial information for the entire Chesapeake Bay watershed, facilitating targeted watershed management.
Article
Environmental Sciences
Robert D. Sabo, Breck Sullivan, Cuiyin Wu, Emily Trentacoste, Qian Zhang, Gary W. Shenk, Gopal Bhatt, Lewis C. Linker
Summary: Understanding the drivers of water quality in local watersheds is crucial for targeted restoration practices. This study examines the nutrient balance components and their trends, such as agricultural surplus, atmospheric deposition, and point source loads, to identify the leading drivers of nutrient loading trends in the Chesapeake Bay watershed. The study finds that while there have been positive developments in reducing pollution sources, recent increases in agricultural surpluses indicate potential reversals in water quality gains.
ENVIRONMENTAL RESEARCH COMMUNICATIONS
(2022)
Article
Biodiversity Conservation
A. R. Zahran, Q. Zhang, P. Tango, E. P. Smith
Summary: This paper develops a barometer that indexes water quality in the Chesapeake Bay and summarizes it over spatial regions and temporal periods. The barometer is based on risk assessment and hydrology, and calculates three different metrics of water quality relative to numerical criteria. The barometer score is a geometric mean of these three metrics. The paper evaluates water quality using dissolved oxygen measurements collected in the Chesapeake Bay during the summer seasons from 1985 to 2020, and reports the barometer score at different levels.
ECOLOGICAL INDICATORS
(2022)
Article
Engineering, Environmental
Qian Zhang, Thomas R. Fisher, Claire Buchanan, Anne B. Gustafson, Renee R. Karrh, Rebecca R. Murphy, Jeremy M. Testa, Richard Tian, Peter J. Tango
Summary: Analyzing historical data from the Chesapeake Bay's tidal tributaries revealed enhanced nutrient limitation at four of the six stations, indicating long-term water quality improvements. This research presents a new analytical tool for detecting signs of ecosystem recovery following nutrient reductions.
Article
Environmental Sciences
Qian Zhang, Joel D. Blomquist, Rosemary M. Fanelli, Jennifer L. D. Keisman, Douglas L. Moyer, Michael J. Langland
Summary: From 1985 to 2017, the nitrogen load in Chesapeake Bay has decreased, but the phosphorus and sediment loads have not improved. Future efforts should focus on managing agricultural nonpoint sources. Although the water quality in Chesapeake Bay has improved, further reductions are necessary to meet the goals.
WILEY INTERDISCIPLINARY REVIEWS-WATER
(2023)
Article
Environmental Sciences
Jinzhao Xiang, Tingwei Cui, Xuyan Li, Qian Zhang, Bing Mu, Rongjie Liu, Wenjing Zhao
Summary: This study quantitatively evaluated the impact of a 3-year pollution control action on water quality in the Bohai Sea using satellite observations. The results showed a significant improvement in water quality during the action period, with clearer and bluer water. The study highlights the important role of satellite remote sensing in coastal ecosystem management.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Ryan E. Langendorf, Vyacheslav Lyubchich, Jeremy M. Testa, Qian Zhang
Summary: This study demonstrates the use of environmental monitoring programs to better understand and manage complex ecosystems, using surface water dissolved oxygen criteria attainment in the Chesapeake Bay as a case study. The research revealed contrasting controls on dissolved oxygen across different regions, with factors such as summer freshwater and sediment inputs impacting attainment differently in landward and open waters, and algae biomass showing opposite effects in surface and deep waters.
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)