Article
Water Resources
Nia Perron, Jennifer L. Baltzer, Oliver Sonnentag
Summary: Careful upscaling of transpiration from point measurements is difficult in spatially heterogeneous landscapes due to variation in local environmental conditions. Increased basal area, drier soils, and the presence of permafrost were found to increase sap velocity in individual trees. When stand-level transpiration was scaled using unspecific transpiration scalars, it was overestimated by 42%.
HYDROLOGICAL PROCESSES
(2023)
Article
Plant Sciences
Katherine D. Dearborn, Cory A. Wallace, Rajit Patankar, Jennifer L. Baltzer
Summary: The study found that permafrost thaw is leading to changes in forest composition and structure in boreal peatlands, with significant variations governed by permafrost presence and organic layer thickness. Mortality of black spruce exceeds recruitment, while recruitment of larch is higher than mortality, especially in permafrost-free wetlands with mineral soil near the surface. These trends suggest a shift from spruce-dominated plateaus to larch-dominated wetlands as permafrost thaw progresses.
JOURNAL OF ECOLOGY
(2021)
Article
Biodiversity Conservation
Maofei Ni, Rong Mao, Xianwei Wang
Summary: This study investigated the response of dissolved organic matter (DOM) quantity and characteristics to nitrogen (N) addition in a permafrost peatland in Northeast China. The results showed that increased N availability reduced dissolved organic carbon concentrations in surface water and soil pore water, and had a greater impact on DOM characteristics in soil pore water than in surface water.
ECOLOGICAL INDICATORS
(2023)
Article
Multidisciplinary Sciences
C. D. Evans, M. Peacock, A. J. Baird, R. R. E. Artz, A. Burden, N. Callaghan, P. J. Chapman, H. M. Cooper, M. Coyle, E. Craig, A. Cumming, S. Dixon, V. Gauci, R. P. Grayson, C. Helfter, C. M. Heppell, J. Holden, D. L. Jones, J. Kaduk, P. Levy, R. Matthews, N. P. McNamara, T. Misselbrook, S. Oakley, S. E. Page, M. Rayment, L. M. Ridley, K. M. Stanley, J. L. Williamson, F. Worrall, R. Morrison
Summary: This study shows that the depth of the water table is the main factor influencing greenhouse gas fluxes in peatlands. By lowering the water table depth by 10 cm, emissions of CO2 and CH4 can be reduced by the equivalent of at least 3 tonnes of CO2 per hectare per year, until the water table depth is less than 30 cm.
Article
Environmental Sciences
Tyler J. Harrow-Lyle, Wai Ying Lam, Erik J. S. Emilson, Robert W. Mackereth, Carl P. J. Mitchell, Stephanie J. Melles
Summary: Methyl mercury (MeHg) concentrations in boreal headwater streams in Ontario, Canada are influenced by natural processes and disturbances such as forestry management. This study used a structural equation modelling approach to assess the impact of catchment characteristics and stream water chemistry on MeHg concentrations in the Dryden - Wabigoon Forest region. The results identified nitrate concentrations, water temperature, and latent watershed characteristics as important drivers of MeHg concentrations. Two plausible pathways for MeHg concentration were described: indirect effect of forest-derived nutrients increasing in-situ MeHg production, and direct supply of MeHg from inundated soils following precipitation and inundation events.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Anna Ferretto, Rob Brooker, Robin Matthews, Pete Smith
Summary: The study highlights the potential risk for drinking water provision in Scotland from peatlands due to climate change, urging the need for frequent monitoring and necessary mitigation measures. Variability among catchments shows some may face substantial seasonal increase in DOC levels. Peatland restoration could be useful in counteracting the projected DOC increase and ensuring safe drinking water provision.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Muhammad Shahbaz, Per Bengtson, Jordan R. Mertes, Bernd Kulessa, Natascha Kljun
Summary: Boreal forests have a significant impact on the global greenhouse gas balance, but the drivers behind persistent CO2 emissions are not well understood. This study investigated the microbial respiration and CO2 and CH4 emissions in dry and wet sampling areas of a mature boreal forest in Norunda, Sweden. The results showed that soil organic matter content and nitrogen availability were the main drivers of microbial respiration, while soil moisture and nitrogen availability determined the reactivity of organic matter. The study suggests that nitrogen availability plays a crucial role in regulating CO2 and CH4 emissions in the Norunda forest.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Forestry
Maija Salemaa, Juha-Pekka Hotanen, Jari Oksanen, Tiina Tonteri, Paivi Merila
Summary: Understorey vegetation in boreal forests plays a significant role in biodiversity. Introducing broadleaved trees in coniferous forests can enhance vascular plant abundance, but high stand density has a counteractive effect. The proportion of broadleaved trees and stand density affect the number and cover of vascular plant species. The response of understorey vegetation to increasing shrub cover often follows a unimodal shape. Increasing the proportion of broadleaved trees can improve nutrient availability in the soil and promote species richness and herb cover. Forest management regimes can determine the characteristics of understorey biodiversity. Habitat and zone-specific instructions in forest management practices can help conserve understorey vegetation and its ecosystem services.
FOREST ECOLOGY AND MANAGEMENT
(2023)
Article
Ecology
Katherine M. Standen, Jennifer L. Baltzer
Summary: The study demonstrates that changes in plant community in boreal peatlands are influenced by permafrost thaw and active layer thickness, shifting the community composition from slower-growing shrubs to faster-growing graminoids and forbs. Further analysis reveals that the variability in community-level traits is primarily driven by species turnover, emphasizing the importance of these changes on ecosystem productivity.
ECOLOGY AND EVOLUTION
(2021)
Article
Water Resources
Olena Volik, Richard Petrone, Eric Kessel, Adam Green, Jonathan Price
Summary: The study assessed the variability of water-use efficiency in different types of peatlands in the Athabasca oil sands region, finding that WUE increases under wetter conditions but is offset by a decrease in air temperature. Wildfire has a negative effect on WUE.
HYDROLOGICAL PROCESSES
(2021)
Article
Microbiology
Krista Peltoniemi, Sylwia Adamczyk, Hannu Fritze, Kari Minkkinen, Taina Pennanen, Timo Penttila, Tytti Sarjala, Raija Laiho
Summary: The study suggests that fungal biomass production in drained peatland forests is influenced by factors such as water table level and recovery time, with extramatrical mycelia biomass production comparable to that in mineral-soil forests. Furthermore, the composition of ectomycorrhizal fungal communities changes with site fertility.
ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Ecology
Amy E. Pickard, Marcella Branagan, Mike F. Billett, Roxane Andersen, Kerry J. Dinsmore
Summary: This study examines the impact of peatland land management on aquatic carbon concentrations and fluxes in northern Scotland. It finds that drainage significantly affects the hydrological and biogeochemical functioning of peatland, while restoration measures can reduce carbon flux, but further monitoring is needed.
Article
Environmental Sciences
K. E. Mothi Promila, K. E. Mothi Kumar, Praveen Sharma
Summary: This study used time series Landsat TM and IRS LISS III data to estimate the influences of degraded lands on ecosystem services in Haryana, India. The results showed a decline in degraded lands over the study period, but the dynamicity of the degraded land category is concerning. The study also found a decrease in the ecosystem service value of grasslands due to land degradation. Overall, the findings highlight the importance of maintaining the integrity and sustainability of degraded lands and land use.
ENVIRONMENTAL EARTH SCIENCES
(2023)
Article
Agronomy
Jianjian Kong, Xingjia Xiang, Jian Yang
Summary: The study found that wildfires significantly impacted soil nutrient ratios and had lasting effects on fine root growth. However, the relationship between soil and fine roots weakened over time post-fire. Wildfires strengthened the connection between fine roots and soil nutrient ratios but reduced the impact of soil nutrient supply on fine root growth.
Article
Environmental Sciences
Soumendra N. Bhanja, Junye Wang, Roland Bol
Summary: This study investigates the microbial enzyme-mediated decomposition of litter and soil organic matter in boreal forest regions through modeling and compares the results with field observations and satellite estimates. The findings are important for understanding future climate change feedbacks and reducing uncertainties.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Ecology
Holly J. Curtinrich, Stephen D. Sebestyen, Natalie A. Griffiths, Steven J. Hall
Summary: Iron plays a crucial role in stabilizing carbon, phosphorus, and nutrient cations in terrestrial-aquatic interfaces and potentially releasing them through redox cycling. The impact of Fe redox cycling on carbon and nutrient dynamics is significant in peatlands, and warmer temperatures can promote the release of carbon and nutrients in these ecosystems.
Article
Engineering, Environmental
Caroline E. Pierce, Olha S. Furman, Sarah L. Nicholas, Jill Coleman Wasik, Caitlin M. Gionfriddo, Ann M. Wymore, Stephen D. Sebestyen, Randall K. Kolka, Carl P. J. Mitchell, Natalie A. Griffiths, Dwayne A. Elias, Edward A. Nater, Brandy M. Toner
Summary: We investigated the composition and spatial correlation of sulfur and mercury pools in peatland soil profiles. Our findings suggest that organic sulfur species play an important role in mercury methylation processes.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
David M. Costello, Scott D. Tiegs, Luz Boyero, Cristina Canhoto, Krista A. Capps, Michael Danger, Paul C. Frost, Mark O. Gessner, Natalie A. Griffiths, Halvor M. Halvorson, Kevin A. Kuehn, Amy M. Marcarelli, Todd Royer, Devan M. Mathie, Ricardo J. Albarino, Clay P. Arango, Jukka Aroviita, Colden Baxter, Brent J. Bellinger, Andreas Bruder, Francis J. Burdon, Marcos Callisto, Antonio Camacho, Fanny Colas, Julien Cornut, Veronica Crespo-Perez, Wyatt F. Cross, Alison M. Derry, Michael M. Douglas, Arturo Elosegi, Elvira Eyto, Veronica Ferreira, Carmen Ferriol, Tadeusz Fleituch, Jennifer J. Follstad Shah, Andre Frainer, Erica A. Garcia, Liliana Garcia, Pavel E. Garcia, Darren P. Giling, R. Karina Gonzales-Pomar, Manuel A. S. Graca, Hans-Peter Grossart, Francois Guerold, Luiz U. Hepp, Scott N. Higgins, Takuo Hishi, Carlos Iniguez-Armijos, Tomoya Iwata, Andrea E. Kirkwood, Aaron A. Koning, Sarian Kosten, Hjalmar Laudon, Peter R. Leavitt, Aurea L. Lemes da Silva, Shawn J. Leroux, Carri J. LeRoy, Peter J. Lisi, Frank O. Masese, Peter B. McIntyre, Brendan G. McKie, Adriana O. Medeiros, Marko Milisa, Yo Miyake, Robert J. Mooney, Timo Muotka, Jorge Nimptsch, Riku Paavola, Isabel Pardo, Ivan Y. Parnikoza, Christopher J. Patrick, Edwin T. H. M. Peeters, Jesus Pozo, Brian Reid, John S. Richardson, Jose Rincon, Geta Risnoveanu, Christopher T. Robinson, Anna C. Santamans, Gelas M. Simiyu, Agnija Skuja, Jerzy Smykla, Ryan A. Sponseller, Franco Teixeira-de Mello, Sirje Vilbaste, Veronica D. Villanueva, Jackson R. Webster, Stefan Woelfl, Marguerite A. Xenopoulos, Adam G. Yates, Catherine M. Yule, Yixin Zhang, Jacob A. Zwart
Summary: Microbes play a critical role in plant litter decomposition and the fate of carbon in rivers and riparian zones. The process of nutrient immobilization, whereby microbes acquire nitrogen and phosphorus from the environment during the decomposition of low-nutrient plant litter, is influenced by nutrient loading and changing climate. However, environmental controls on immobilization are poorly understood due to the complex interplay between environmental factors and plant litter chemistry.
GLOBAL BIOGEOCHEMICAL CYCLES
(2022)
Article
Water Resources
James B. Shanley, Ann T. Chalmers, Jon C. Denner, Stewart F. Clark, Stephen D. Sebestyen, Serena Matt, Thor E. Smith
Summary: The Sleepers River Research Watershed is a research area in Vermont, USA, established in 1957 by the U.S. Department of Agriculture. The U.S. Geological Survey currently operates and expands the hydrological foundation of the area. This data note introduces five freely available data releases in the watershed.
HYDROLOGICAL PROCESSES
(2022)
Article
Ecology
Sarah J. Shelley, Deanne J. Brice, Colleen M. Iversen, Randy K. Kolka, Stephen D. Sebestyen, Natalie A. Griffiths
Summary: Bryophytes play a crucial role in carbon accumulation in peatland ecosystems. Intrinsic and extrinsic factors both influence moss decomposition, with intrinsic characteristics driving early decay stages and extrinsic factors becoming more important over time. Longer-term studies are needed to fully understand the complexities of moss decay and inform carbon and climate models.
Article
Ecology
Colleen M. Iversen, John Latimer, Deanne J. Brice, Joanne Childs, Holly M. Vander Stel, Camille E. Defrenne, Jake Graham, Natalie A. Griffiths, Avni Malhotra, Richard J. Norby, Keith C. Oleheiser, Jana R. Phillips, Verity G. Salmon, Stephen D. Sebestyen, Xiaojuan Yang, Paul J. Hanson
Summary: Warming is found to exponentially increase plant-available ammonium and phosphate in a peatland ecosystem, with no effect from elevated CO2 levels. The dynamics of nutrient availability are influenced by peat depth and microtopography. Future predictions of peatland nutrient availability should take into account dynamic changes in nutrient acquisition by plants and microbes, as well as peat depth and microtopography.
Review
Biodiversity Conservation
Rachel M. Pilla, Natalie A. Griffiths, Lianhong Gu, Shih-Chieh Kao, Ryan McManamay, Daniel M. Ricciuto, Xiaoying Shi
Summary: Inland waters play an important role in connecting terrestrial landscape and oceans, but their contribution to global carbon budgets is often overlooked. This study synthesizes recent estimates of carbon fluxes in different types of inland waterbodies and highlights the impact of anthropogenic pressures on these fluxes. The study also recommends research priorities for better understanding and quantification of carbon fluxes in response to climate and landscape changes.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Environmental Sciences
Kevin A. Ryan, Thomas Adler, Ann T. Chalmers, Julia Perdrial, Stephen Sebestyen, James B. Shanley, Aron Stubbins
Summary: Tree-derived dissolved organic matter (DOM) is an important carbon flux in forested watersheds. This study assessed the optical properties and factors controlling DOM quality in a temperate deciduous forest. The results showed that throughfall and stemflow had higher concentrations of dissolved organic carbon and calcium than rainwater. A multiway model was developed to characterize DOM optical properties, and different tree species and seasons were found to influence DOM quality.
Article
Engineering, Environmental
Colin P. R. McCarter, Stephen D. Sebestyen, Jill K. Coleman Wasik, Coleman Wasik, Daniel R. Engstrom, Randall K. Kolka, Jeff D. Jeremiason, Edward B. Swain, Bruce A. Monson, Brian A. Branfireun, Steven J. Balogh, Edward A. Nater, Susan L. Eggert, Paris Ning, Carl P. J. Mitchell
Summary: This study presents empirical evidence of the relationship between declining sulfate deposition and changes in mercury methylation and water quality in peatlands. The results show that when sulfate additions stopped, the export of methylmercury quickly returned to baseline levels in the peatland-dominated catchment.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Civil
Mariel W. Jones, Stephen D. Sebestyen, Salli F. Dymond, G. H. Crystal Ng, Xue Feng
Summary: The relationship between snowmelt and spring streamflow is changing under warming temperatures and diminishing snowpack. The hydrologic connectivity across catchment landscape elements, such as snowpack and surface wetlands, plays a critical role in controlling the routing of snowmelt to streams. The effects of soil frost on the movement of water from a snowpack to a stream are not fully understood.
JOURNAL OF HYDROLOGY
(2023)
Article
Geochemistry & Geophysics
Juliana D. ' Andrilli, Carlos M. Romero, Phoebe Zito, David C. Podgorski, Robert A. Payn, Stephen D. Sebestyen, Andrew R. Zimmerman, Fernando L. Rosario -Ortiz
Summary: Patterns in Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) data provide insights into the characteristics of organic matter influenced by natural processes. This study reevaluates the molecular lability boundary (MLB) approach to assess organic matter lability, incorporating new data and considering different experimental conditions. The findings suggest the need to reframe the MLB approach to include lability indices for biotic, thermal, and photochemical processes, and provide a broader perspective on ecosystem form and function trends.
ORGANIC GEOCHEMISTRY
(2023)
Article
Environmental Sciences
Natalie A. Griffiths, Peter S. Levi, Jeffery S. Riggs, Christopher R. DeRolph, Allison M. Fortner, Jason K. Richards
Summary: The deployment of the unmanned surface vehicle (USV)-water quality measurement platform (the AquaBOT) provided longitudinal profiling of water quality in low-to mid-order streams. The AquaBOT data showed spatial patterns and heterogeneity in water quality parameters, such as nitrate concentration, and had higher spatial resolution compared to grab sampling data.
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)