Article
Environmental Sciences
Feifei Wang, Haiwen Wu, Jiangnan Li, Jianli Liu, Qiujin Xu, Lihui An
Summary: Improper disposal of face masks contributes to microplastic contamination. Discarded face masks can release microfibers into aquatic environments, potentially becoming new sources of microplastic pollution. These masks also contain potentially toxic elements. These findings highlight the importance of proper disposal to prevent both microplastic pollution and the spread of COVID-19.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Hao Du, Shushi Huang, Jun Wang
Summary: This article discusses the indispensable role of plastic products, specifically disposable face masks, in our daily lives during the COVID-19 pandemic. It highlights the environmental impact of improper disposal and mismanagement of plastic waste, especially the release of microplastics (MPs) from face masks. The study suggests the implementation of green technologies to reduce the amount of discarded face masks and minimize MPs pollution, as well as recommendations for future research directions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Green & Sustainable Science & Technology
Anurag Deepak, Varun Sharma, Dinesh Kumar
Summary: This paper addresses the environmental burden of existing biomedical waste management in northern India and suggests constructive steps to achieve a less impactful environment through Life Cycle Assessment (LCA). The study finds that an integrated system including incineration with energy recovery, autoclave-shredder, chemical disinfection, and Effluent Treatment Plant (ETP) reduces the environmental burden compared to the present state. The paper suggests that LCA is a beneficial tool for decision-makers and managers to reduce environmental burden and develop a life cycle inventory database for developed economies.
JOURNAL OF CLEANER PRODUCTION
(2022)
Review
Public, Environmental & Occupational Health
Rahaf Alturki, Maali Alharbi, Ftoon AlAnzi, Saleh Albahli
Summary: 2020 brought significant changes to people's lives worldwide due to the outbreak of COVID-19. Precautionary measures such as handwashing, social distancing, and mask wearing were implemented to reduce the spread of the disease. However, many people failed to properly adhere to the face mask rule.
FRONTIERS IN PUBLIC HEALTH
(2022)
Article
Environmental Sciences
Martin Thiel, Diamela de Veer, Nuxia L. Espinoza-Fuenzalida, Camilo Espinoza, Camila Gallardo, Ivan A. Hinojosa, Tim Kiessling, Javiera Rojas, Abril Sanchez, Fernanda Sotomayor, Nelson Vasquez, Roberto Villablanca
Summary: Face masks were found on beaches across Chile, with average densities higher than in Peru but lower than in Kenya. Daily accumulation rates were significantly higher during the summer season compared to fall/winter, likely due to increased beach visitors. Recommendations include providing more PPE-related signs and waste bins, establishing stricter waste disposal regulations, and enhancing educational campaigns promoting proper use and disposal of face masks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Multidisciplinary
Jiuling Yu, Aurora del Carmen Munguia-Lopez, Victor S. Cecon, Kevin L. Sanchez-Rivera, Kevin Nelson, Jiayang Wu, Shreyas Kolapkar, Victor M. Zavala, Greg W. Curtzwiler, Keith L. Vorst, Ezra Bar-Ziv, George W. Huber
Summary: The high use of disposable face masks due to COVID-19 has led to a global waste generation of 4.68-6.24 million tons per year from personal protective equipment. Disposable face masks, primarily composed of polypropylene (PP), are disposed of in landfills despite the high market value of PP. This study presents a solvent-targeted recovery and precipitation (STRAP) method that achieves 90% recovery of high-quality PP from face masks. N,N-Dimethylacetamide effectively removes color from the recovered PP, resulting in clear high-purity PP with similar thermochemical properties and color as virgin PP resin. Techno-economic analysis indicates that economically viable high-purity PP recovery can be achieved at a scale of 5000 tons per year or higher.
Article
Engineering, Environmental
Michael J. Ormsby, Hannah L. White, Rebecca Metcalf, David M. Oliver, Nicholas A. Feasey, Richard S. Quilliam
Summary: Plastic waste in low- and middle-income countries has become a major part of landfills and dump sites. This type of pollution provides a surface for the growth of biofilm, including pathogenic bacteria and viruses. The study shows that pathogenic Salmonella can survive on plastic and glass surfaces for at least 28 days, and temperature is a key factor in their persistence. The presence of pathogens on plastic waste poses a higher risk to public health, especially in areas with frequent exposure to plastic pollution.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Environmental Sciences
Guillermo Garcia-Garcia, Maria Angeles Martin-Lara, Monica Calero, Francisco Ortega, Gabriel Blazquez
Summary: Since the COVID-19 pandemic began, a large number of face masks have been used and disposed of, resulting in significant environmental impact. However, pyrolysis of face masks has emerged as a sustainable solution, as it can produce liquid oil for diesel substitution and solid char for activated carbon substitution. This study used Life-Cycle Assessment methodology to examine the environmental impacts of various pyrolysis treatment scenarios for surgical masks and FFP2 masks, comparing them to landfilling. The results showed that using the produced oil as a diesel substitute greatly reduces the environmental impact, with thermal pyrolysis performing better than catalytic pyrolysis. Freshwater and marine ecotoxicity were found to be the highest environmental impact categories in all scenarios.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Mohammad Saberian, Jie Li, Shannon Kilmartin-Lynch, Mahdi Boroujeni
Summary: This study proposes an innovative way to reduce pandemic-generated waste by recycling used face masks with other waste materials for civil constructions. Experimental results show that blends of shredded face masks and recycled concrete aggregate can meet the requirements for pavements base/subbase applications.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Hemal Chowdhury, Tamal Chowdhury, Sadiq M. Sait
Summary: This study estimated the annual face mask utilization and plastic pollution from mismanaged face masks in coastal regions of 46 countries, highlighting that with lower waste management facilities, the number of plastic debris entering the ocean will rise, and calling for significant investments from global communities in improving waste management facilities.
MARINE POLLUTION BULLETIN
(2021)
Review
Medicine, General & Internal
Mina Bakhit, Natalia Krzyzaniak, Anna Mae Scott, Justin Clark, Paul Glasziou, Chris Del Mar
Summary: This study aimed to identify and synthesize the downsides of wearing face masks in any setting through a systematic review and meta-analysis. The findings showed that while there is high compliance in wearing face masks, it can also lead to discomfort. Further research is needed to explore the risks and potential alternatives for mask wearing.
Article
Engineering, Environmental
Suman Mor, Khaiwal Ravindra
Summary: Municipal Solid Waste (MSW) is disposed of in an unorganized and disordered manner, leading to severe environmental consequences and health hazards. Landfills in India require a large amount of land and only 21% of MSW is properly managed. Landfills contribute significantly to greenhouse gas emissions and are expected to cause a substantial increase in global emissions in the future.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Environmental Sciences
Jean-Pierre Alcaraz, Laurence Le Coq, Jeremie Pourchez, Dominique Thomas, Sandrine Chazelet, Isabelle Boudry, Maud Barbado, Sophie Silvent, Claire Dessale, Fabienne Antoine, Catherine Guimier-Pingault, Laurent Cortella, Sophie Rouif, Nathalie Bardin-Monnier, Augustin Charvet, Olivier Dufaud, Lara Leclerc, Yoann Montigaud, Coralie Laurent, Paul Verhoeven, Aurelie Joubert, Ala Bouhanguel, Yves Andres, Joel Gaffe, Donald K. Martin, Christophe Huet, Sandrine Boisset, Max Maurin, Pascal Rumeau, Frederic Charlot, Emmanuel Richaud, Alexandre Moreau-Gaudry, Vincent Bonneterre, Philippe Cinquin, Caroline Landelle
Summary: The French consortium was established to address the mask shortage during the Covid-19 pandemic by finding ways to reuse medical masks. Their workflow provided a successful method for safely reusing medical masks, contributing to waste management and providing better protection than cloth masks.
Review
Environmental Sciences
Sukhendu Dey, Palas Samanta, Deblina Dutta, Debajyoti Kundu, Apurba Ratan Ghosh, Sunil Kumar
Summary: Face masks, essential for survival during the COVID-19 pandemic, contribute to a significant amount of waste and environmental pollution, particularly plastic pollution. Improper disposal and mismanagement of face mask waste pose challenges and could result in the release of microfibers and microplastics into the marine environment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Vishal Chaudhary, Akash Gautam, Poonam Silotia, Sumira Malik, Roana de Oliveira Hansen, Mohammad Khalid, Ajit Khosla, Ajeet Kaushik, Yogendra Kumar Mishra
Summary: This review introduces the use of smart face mask respirators (FMR) and explores the use of modern materials and nanotechnology to solve problems with traditional face masks. Smart FMRs have many intelligent features that can address issues such as breathing problems, skin issues, single use, and environmental pollution associated with traditional face masks. The review also discusses potential applications for smart FMRs in the future, such as integration with the Internet of Nano-things, 5G wireless communications, and artificial intelligence.
Article
Mathematics, Applied
Rahmat Ellahi, Ahmed Zeeshan, Aamir Waheed, Nasir Shehzad, Sadiq M. Sait
Summary: The heat transfer study of carbon nanotubes-water nanofluid over a vertical truncated wavy cone is analyzed in this paper. It is found that the thickness of thermal boundary layer decreases with the increase of the volume fraction of carbon nanotubes. The results are in good accordance with the current literature.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2023)
Review
Chemistry, Inorganic & Nuclear
Tanzeela Anis, Syed Mujtaba ul Hassan, Ahmat Khurshid, M. Fakhar-e-Alam, Faisal Shahzad, A. Ali, Jamil Ahmad, Nazia Hossain
Summary: This review provides a comprehensive overview of hollow, multifunctional structures for biomedical applications, with a focus on the use of nanotechnology and its unique prospects in personalized treatment, multimodal imaging, multimodal therapy, and targeted drug delivery. The performance of different materials and synthesis strategies are discussed, and the development of more sophisticated systems in the future is anticipated.
JOURNAL OF CLUSTER SCIENCE
(2023)
Article
Operations Research & Management Science
Khaled A. Al Utaibi, Robia Arif, Sadiq M. Sait, Ayesha Sohail, Mahnoor Awan
Summary: This article discusses the interpretation of rise and fall and associated bifurcations in the fields of marketing, business, and finance using differential equations and dynamical systems. By incorporating delayed dynamics, financial delays can be better understood. The parametric approximation of these equations can be achieved using robust optimization tools like the genetic algorithm. The manuscript explores the concept of delay in the fashion industry's investment frequency and models its stability through detailed dynamical analysis. It reports the criteria for stability and instability of delay differential equations governing investment trends, as well as the occurrence criteria for bifurcations. The importance of Hopf bifurcation is highlighted as it allows investors to identify unstable regions and avoid risky circumstances.
INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE AND ENGINEERING MANAGEMENT
(2023)
Article
Chemistry, Inorganic & Nuclear
Sumaira Nosheen, Sadia Sagar Iqbal, Aneela Sabir, Abdulaziz Alturki, Nazia Hossain, Ali Bahadar
Summary: Novel spinel ferrites nanocomposites containing aluminum chromium zinc nanoferrites were successfully fabricated and characterized in this study. The effects of dopants on the magnetic and electrical properties of the nanocomposites were investigated, showing potential applications in high frequency electromagnetic waves absorbing devices.
JOURNAL OF CLUSTER SCIENCE
(2023)
Review
Energy & Fuels
Monirul Islam Miskat, Protap Sarker, Hemal Chowdhury, Tamal Chowdhury, Md Salman Rahman, Nazia Hossain, Piyal Chowdhury, Sadiq M. Sait
Summary: Bangladesh is rich in solar resources and solar power is considered the most desirable energy source for mitigating its high energy demand. This study provides an overview of renewable energy and specifically focuses on the potential of solar energy in Bangladesh. It explores the current scenario of solar energy applications, investigates the technical and theoretical potential, and discusses renewable energy policies and ongoing projects. The study also compares Bangladesh's solar power scenario with other regions worldwide and highlights the potential of artificial intelligence in enhancing solar energy.
Article
Thermodynamics
Tamal Chowdhury, Hemal Chowdhury, Kazi Sifatul Islam, Ayyoob Sharifi, Richard Corkish, Sadiq M. Sait
Summary: Due to frequent natural disasters, energy systems need to be more resilient and affordable. Researchers conducted a study on the resilience benefits of a PV/battery system in a health care center in the Rohingya refugee camp and found that the system successfully handled power outages and reduced CO2 emissions effectively.
Article
Physics, Applied
Ambreen A. Khan, Iqra Saleem, R. Ellahi, Sadiq M. Sait, K. Vafai
Summary: This study investigates the impact of thermal and magnetohydrodynamics on Powell-Eyring fluid over a curved surface using the Cattaneo-Christov heat flux. The mathematical framework is transformed into a set of nonlinear partial differential equations, which are further simplified into nonlinear ordinary differential equations. By employing the optimal homotopy asymptotic method, analytical solutions to these equations are obtained. The study analyzes the effects of various parameters and compares the results with existing literature, showing excellent agreement.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2023)
Article
Thermodynamics
M. M. Bhatti, Sadiq M. Sait, R. Ellahi, Mikhail A. Sheremet, Hakan Oztop
Summary: The study focuses on entropy generation and thermal analysis of magnetic hybrid nanofluid containing silver and gold nanoparticles. Blood is used as the base fluid in a wavy asymmetric channel, considering the effects of viscous dissipation. Mathematical models are developed and solved using perturbation method and numerical integration. The results show that the introduction of gold and silver nanoparticles enhances the velocity field in a smaller segment of the channel, and the temperature profile is influenced by various factors. The research has originality and significance in understanding the role of hybrid nanoparticles in entropy generation and magnetic fields. Pharmaceutical technology can benefit from this research for better drug delivery systems and micropumps.
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
(2023)
Article
Thermodynamics
Saeed Ghorbani, Amin Emamian, Amin Amiri Delouei, R. Ellahi, Sadiq M. Sait, Mohamed Bechir Ben Hamida
Summary: The purpose of this study is to investigate heat transfer and electrokinetic non-Newtonian flow in a rectangular microchannel in the developed and transient states. The Carreau-Yasuda model was used to capture the non-Newtonian behavior of the fluid, and the governing equations were numerically solved by considering the volumetric force term of electric current. The results show that the electrokinetic diameter, Brinkman number, and Peclet number have significant effects on the velocity and temperature distribution, with the maximum velocity occurring at an electrokinetic diameter of 400.
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
(2023)
Article
Materials Science, Multidisciplinary
Ahmad Zeeshan, Munir Ahmad, Rahmat Ellahi, Sadiq M. Sait, Nasir Shehzad
Summary: The hydromagnetic flow of immiscible nanofluids between two parallel plates has been investigated. Two regions filled with different base fluids and nanoparticles were considered. Analytic solutions to the nonlinear coupled differential equations were obtained, and the effects of various parameters on the velocity and temperature profiles were illustrated graphically.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Computer Science, Artificial Intelligence
Betul Sultan Yildiz, Sumit Kumar, Natee Panagant, Pranav Mehta, Sadiq M. Sait, Ali Riza Yildiz, Nantiwat Pholdee, Sujin Bureerat, Seyedali Mirjalili
Summary: The present study introduces a novel hybrid optimizer named AOA-NM (Arithmetic optimization-Nelder Mead) to optimize engineering design and manufacturing problems. By incorporating the Nelder-Mead local search methodology into the basic AOA framework, the study aims to overcome the local optima trap and improve solution quality. Numerical validation and comparative analysis with other metaheuristics demonstrate the efficacy and robustness of the proposed AOA-NM algorithm in handling challenging practical issues.
KNOWLEDGE-BASED SYSTEMS
(2023)
Article
Materials Science, Characterization & Testing
Dildar Gurses, Pranav Mehta, Sadiq M. Sait, Sumit Kumar, Ali Riza Yildiz
Summary: In this article, a new prairie dog optimization algorithm (PDOA) is analyzed for the optimum economic design of three well-known heat exchangers. The optimization of these heat exchangers, including knowledge of thermo-hydraulic designs, design parameters, and critical constraints, is achieved using a multi strategy enhanced PDOA combining PDOA with Gaussian mutation and chaotic local search (MSPDOA). The results show that MSPDOA has the best performance compared to other algorithms and can be adapted for various real-world engineering optimization cases.
Article
Materials Science, Characterization & Testing
Sadiq M. Sait, Pranav Mehta, Dildar Gurses, Ali Riza Yildiz
Summary: This article addresses the economic optimization challenge of plate-fin heat exchangers using the cheetah optimization algorithm. The study reveals that the cheetah algorithm can minimize the overall cost of the plate-fin heat exchanger with a 100% success rate. Therefore, it suggests adopting the cheetah optimizer for solving optimization challenges in different fields.
Article
Green & Sustainable Science & Technology
S. M. Mezbahul Amin, Nazia Hossain, Molla Shahadat Hossain Lipu, Shabana Urooj, Asma Akter
Summary: Energy resiliency is crucial for the proper functioning of data centers, especially in developing countries with inadequate power supply infrastructure. This study fills the research gap by examining the energy resilience and sustainability of data centers using photovoltaic and battery microgrids. The results demonstrate the economic potential of these microgrids and their environmental benefits.
Article
Green & Sustainable Science & Technology
Faraz Sufyan, Mehmood Ali, Sadia Khan, Nazia Hossain
Summary: This study investigated the production of bioenergy, specifically biohythane (a combination of biohydrogen and biomethane), from cow dung and untreated domestic wastewater sludge. The experimental results showed that the highest yields of biohydrogen and biomethane were obtained under specific temperature and pH conditions. Microorganisms played a crucial role in accelerating the conversion reaction, with different bacteria contributing differently under different pH conditions. The study also successfully modeled the experimental data, demonstrating the best-fit results for biohythane production. Overall, this research presented an effective pathway for utilizing untreated domestic wastewater sludge and showcased the potential of biohythane production across a wide range of pH conditions.
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)
