Article
Environmental Sciences
Samia Richards, Lakshminarayana Rao, Stephanie Connelly, Anjali Raj, Lakshmi Raveendran, Shahana Shirin, Priyanka Jamwal, Rachel Helliwell
Summary: This study evaluates the effectiveness of a rooftop rainwater harvesting system in reducing the pressure on groundwater supply at a public school in rural India. The stored rainwater quality and the application of low-cost treatment methods were assessed, indicating that chlorine dosing was effective in reducing microbial abundance over time. The results showed that the installed rainwater harvesting system has reduced water supply pressure by up to 25% with proper chlorination, allowing for greater savings and multiple uses of the stored water.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Review
Public, Environmental & Occupational Health
A. M. Nielsen, L. A. T. Garcia, K. J. S. Silva, L. P. Sabogal-Paz, M. M. Hincapie, L. J. Montoya, L. Galeano, A. Galdos-Balzategui, F. Reygadas, C. Herrera, S. Golden, J. A. Byrne, P. Fernandez-Ibanez
Summary: Chlorination has been commonly used for providing safe drinking water, but there are challenges in effective implementation. A literature review focusing on three Latin American countries found that guidance on household-based chlorination may not incentivize users enough. Moreover, variations in water quality are often overlooked in recommending chlorine doses. User preferences, chlorine product quality, and availability also pose barriers to the sustainable use of chlorination.
INTERNATIONAL JOURNAL OF HYGIENE AND ENVIRONMENTAL HEALTH
(2022)
Article
Engineering, Environmental
Arsalan Afkhami, Mattia Marotta, Dorian Dixon, Nigel G. Ternan, Luis Javier Montoya-Jaramillo, Margarita Hincapie, Laila Galeano, Pilar Fernandez-Ibanez, Patrick S. M. Dunlop
Summary: The study tested different commercial filter types with varying micron ratings for turbidity removal efficiency, finding that pleated filters could be cleaned and reused efficiently, while spun and wound filters were single-use only. Combining filters of different micron ratings improved filtration efficiency, and washing steps were effective in extending filter lifespan.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Review
Engineering, Environmental
Sajeeve Latif, Mohammad A. Alim, Ataur Rahman
Summary: Harvested rainwater requires pre-treatment and disinfection before human consumption. A sustainable and cost-effective disinfection method, such as hypochlorite, is needed for rural rainwater harvesting systems. Proper dosing and residual effects of disinfectant are important considerations for effective treatment.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Engineering, Environmental
Gabrielle M. String, Marta Domini, Hanaa Badr, Hannah Brodsky, Yarmina Kamal, Tyler Tatro, Miranda Johnston, Anthonia Ogudipe, Trang Nha Vu, Marlene K. Wolfe, Daniele S. Lantagne
Summary: The study found that biofilms grow rapidly in jerricans (presence confirmed in 3 weeks), and there was an increase in chlorine demand over time as free chlorine residual decreased from 1.16 to 0.59 mg L-1 in treated waters with 5 NTU. Biofilm growth was significantly inhibited by water treatment with chlorine, and cleaning with NaOCl or NaOCl/rocks also had inhibitory effects. Cleaning with rocks increased surface roughness, which promoted biofilm growth.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2021)
Review
Biochemistry & Molecular Biology
Antonio Medici, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: The development of commercial products should focus on reducing risks by placing risk assessment at the center of the design. Unfortunately, many operators in various production sectors still adhere to the philosophy of risk management rather than changing their approach. This is also true in the production of solar filters, where risks associated with their environmental fate were underestimated. It is important to understand the complete picture of organic sunscreens and their byproducts under different conditions and their ecotoxicological profile.
Article
Chemistry, Analytical
Giovanni Luongo, Marco Guida, Antonietta Siciliano, Giovanni Libralato, Lorenzo Saviano, Angela Amoresano, Lucio Previtera, Giovanni Di Fabio, Armando Zarrelli
Summary: The study found that DCF produces 14 degradation by-products during the chlorination process, some of which exhibit high toxicity. Ecotoxicological bioassays revealed that these by-products have significant effects on microalgae and crustaceans.
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
(2021)
Article
Engineering, Environmental
Srija Madduri, Hemant S. Sodaye, A. K. Debnath, A. K. Adak, T. L. Prasad
Summary: This study demonstrates a systematic methodology for chemically converting brackish water RO membranes into NF and UF membranes using NaOCl. The changes in physicochemical properties of the membranes during conversion are analyzed, and the depolymerization of polyamide upon NaOCl exposure is observed. These findings are important for chemical recycling/treatment of EoL membranes on a plant scale.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Biochemical Research Methods
Jessica C. E. Vilhena, Ana Amorim, Lourenco Ribeiro, Irlon M. Ferreira, Maira Pombo
Summary: This study compared the effectiveness of low-cost reagents in obtaining high-quality diatom slides for microphytobenthos research, with H2O2, HNO3, and NaClO showing the best performance.
JOURNAL OF MICROBIOLOGICAL METHODS
(2021)
Article
Engineering, Environmental
Yang Deng
Summary: When designing sustainable household water treatment systems, it is important to consider treatment capability, environmental friendliness, user experience, economic viability, and social acceptance. To achieve this, advanced materials, innovative technologies, and user-centered design approaches should be employed. Additionally, efforts should be made to reduce environmental and energy footprints, manage residuals, increase user willingness to use and pay, and foster social acceptance and market adoption.
Article
Engineering, Chemical
Zeyuan Gao, Zhi-Ping Zhao, Weiwei Cai
Summary: This study simulated reactions between PACs and NaClO under current online membrane cleaning practices. The results showed that NaClO-induced PAC variations weakened PAC adsorption capacities and increased PAC deposition on membrane surfaces. Applying altered PACs in PAC/UF water treatment system led to aggravated membrane fouling and decreased surface water treatment performances.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Environmental Sciences
R. C. Nogueira, M. Nigro, J. Veuthey, M. D. F. Thior, C. O. D. Amour, J. Voillat
Summary: This study evaluates the performance of a low-cost technology that produces chlorine and injects it into community water tanks in rural Benin. The study finds that some of the tanks have structural issues, preventing the system from functioning properly. Water samples show that 60% of the samples collected before chlorination have microbiological contamination, while all samples from properly chlorinated systems are free of contamination. However, water from tanks with structural problems continues to be distributed to the population despite contamination.
JOURNAL OF WATER AND HEALTH
(2022)
Review
Dentistry, Oral Surgery & Medicine
Rayssa Sabino-Silva, Ihan Vitor Cardoso, Filipe Colombo Vitali, Ana Maria Hecke Alves, Beatriz Dulcineia Mendes Souza, Eduardo Antunes Bortoluzzi, Lucas da Fonseca Roberti Garcia, Cleonice da Silveira Teixeira
Summary: This study investigated the prevalence of postoperative pain after endodontic treatment using low and high concentrations of sodium hypochlorite (NaOCl). The overall prevalence of postoperative pain was 45% in the low concentration group and 39% in the high concentration group.
CLINICAL ORAL INVESTIGATIONS
(2023)
Article
Biochemistry & Molecular Biology
Giovanni Luongo, Lorenzo Saviano, Giovanni Libralato, Marco Guida, Antonietta Siciliano, Lucio Previtera, Giovanni Di Fabio, Armando Zarrelli
Summary: Recent studies have shown the frequent detection of antihypertensive agents in wastewater treatment plants and surface waters, with investigations into the degradation pathway for one of these drugs. Ecotoxicity tests revealed increased toxicity of degradation byproducts compared to the parent compound.
Article
Agriculture, Multidisciplinary
Lihui Zhang, Min Zhang, Arun S. Mujumdar, Kun Liu
Summary: The study showed that ultrasound combined with sodium hypochlorite treatment significantly reduced the concentration of NaClO solution and decreased the counts of E. coli, S. aureus, and P. aeruginosa. This treatment disrupted bacterial cell membrane, leading to cytoplasmic leakage, while increasing cell membrane permeability.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2022)
Article
Engineering, Chemical
Julie E. Powers, Cynthia McMurry, Sarah Gannon, Adam Drolet, Jared Oremo, Linden Klein, Yoshika Crider, Jennifer Davis, Amy J. Pickering
Summary: The study introduced a novel in-line chlorine doser that showed high potential for increasing access to safe drinking water in low-income settings through field testing in Kisumu County, Kenya.
Article
Environmental Sciences
Emily K. Rousham, Muhammad Asaduzzaman, T. I. M. Amin Uddin Mozmader, Mohammed Badrul Amin, Mahdia Rahman, Muhammed Iqbal Hossain, Md Rayhanul Islam, Zahid Hayat Mahmud, Leanne Unicomb, Mohammad Aminul Islam
Summary: The study revealed a high prevalence of ESBL-EC colonization in humans, but it was not significantly associated with poultry exposure. In these community settings, bidirectional transmission of antibiotic resistance between humans, poultry, and the environment is likely to occur, highlighting the importance of One Health mitigation strategies.
ENVIRONMENTAL HEALTH PERSPECTIVES
(2021)
Review
Chemistry, Multidisciplinary
Laura H. Kwong, Rob Wilson, Shailabh Kumar, Yoshika Susan Crider, Yasmin Reyes Sanchez, David Rempel, Ajay Pillarisetti
Summary: It is recommended for the general public to wear masks to slow the spread of COVID-19, with a focus on selecting materials with tested filtration efficiency and breathability. Standard methods should be followed and detailed material characteristics reported to improve the usability of future study results.
Article
Environmental Sciences
Mahbubur Rahman, Tania Jahir, Farzana Yeasmin, Farzana Begum, Mosammot Mobashara, Khobair Hossain, Rizwana Khan, Rezwana Hossain, Fosiul Alam Nizame, Anika Jain, Elli Leontsini, Leanne Unicomb, Stephen P. Luby, Peter J. Winch
Summary: Community health workers in the WASH Benefits trial in Bangladesh experienced positive working conditions and benefits both socially and financially, leading to retention and job satisfaction. They gained self-confidence, respect, and family support, becoming valuable resources for health and social advice in their communities.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Article
Public, Environmental & Occupational Health
Leanne E. Unicomb, Fosiul Alam Nizame, Mohammad Rofi Uddin, Papreen Nahar, Patricia J. Lucas, Nirnita Khisa, S. M. Salim Akter, Mohammad Aminul Islam, Mahbubur Rahman, Emily K. Rousham
Summary: South Asia faces challenges with antimicrobial resistance due to over-the-counter antibiotic sales and noncompliance among healthcare providers. This paper focuses on developing SBCC interventions to promote appropriate antibiotic use. The study identified behaviors amenable to change among households and drug shop staff, emphasizing the importance of seeking registered physician consultations and ensuring completion of antibiotic courses.
Article
Engineering, Environmental
Jesse D. Contreras, Mahfuza Islam, Andrew Mertens, Amy J. Pickering, Laura H. Kwong, Benjamin F. Arnold, Jade Benjamin-Chung, Alan E. Hubbard, Mahfuja Alam, Debashis Sen, Sharmin Islam, Mahbubur Rahman, Leanne Unicomb, Stephen P. Luby, John M. Colford, Ayse Ercumen
Summary: The study found that household latrine access is not effective in reducing fecal contamination in the rural environment. While there were some reductions in stored water and child hands, the effects were small and inconsistent. Additional factors such as follow-up time, season, wealth, and community characteristics did not consistently modify the intervention effects.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Daniel W. Smith, Sonia Sultana, Yoshika S. Crider, Syed Anjerul Islam, Jenna M. Swarthout, Frederick G. B. Goddard, Atonu Rabbani, Stephen P. Luby, Amy J. Pickering, Jennifer Davis
Summary: The delivery of safe water in cities of lower- and middle-income countries remains a challenge. A study conducted in Dhaka, Bangladesh, found that landlords had similar or higher demand for in-line chlorination services compared to point-of-use treatment products and manual chlorine dispensers. This suggests that making in-line chlorination financially viable for the lowest-income consumers may require cost reductions or subsidies.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Environmental Sciences
Robert N. Phalen, Jonathan Patterson, John Cuadros Olave, Samuel A. Mansfield, Jared S. Shless, Yoshika S. Crider, Helen O. Pitchik, Alliya S. Qazi, Ashley Styczynski, Roger LeMesurier, Daniel Haik, Laura H. Kwong, Christopher LeBoa, Arnab Bhattacharya, Youssef K. Hamidi
Summary: This study examines the effects of repeated use of medical exam gloves on latex and nitrile gloves, following CDC guidelines. Latex gloves performed well within the guidelines, while nitrile gloves showed significant changes in elastic modulus. Further research is needed to investigate the impact of disinfection products on nitrile exam gloves' mechanical integrity.
JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HYGIENE
(2022)
Article
Environmental Sciences
Jared S. Shless, Yoshika S. Crider, Helen O. Pitchik, Alliya S. Qazi, Ashley Styczynski, Roger LeMesurier, Daniel Haik, Laura H. Kwong, Christopher LeBoa, Arnab Bhattacharya, Youssef K. Hamidi, Robert N. Phalen
Summary: The COVID-19 pandemic has led to shortages of personal protective equipment, prompting recommendations for limited disinfection cycles and extended glove use. This study evaluated the impact of different disinfectants on glove integrity and found that ten applications of diluted bleach had the least effect on glove damage. Additional testing is needed to inform strategies for extended glove use during shortages.
JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HYGIENE
(2022)
Article
Microbiology
Maya L. Nadimpalli, Val F. Lanza, Maria Camila Montealegre, Sonia Sultana, Erica R. Fuhrmeister, Colin J. Worby, Lisa Teichmann, Lea Caduff, Jenna M. Swarthout, Yoshika S. Crider, Ashlee M. Earl, Joe Brown, Stephen P. Luby, Mohammad Aminul Islam, Timothy R. Julian, Amy J. Pickering
Summary: The development of the gut microbiome has long-term health benefits. A study in Bangladesh found that automated water chlorination effectively reduced child diarrhea and antibiotic use. Although water chlorination increased the abundance of certain bacterial genera associated with improved gut health, there were no significant effects on overall richness or diversity of taxa. The study also found that clinically relevant antibiotic resistance genes were more abundant in the gut microbiome of children exposed to chlorinated water. Despite this, the study supports the use of chlorination to increase access to safe drinking water globally.
NATURE MICROBIOLOGY
(2022)
Review
Engineering, Environmental
Megan Lindmark, Katya Cherukumilli, Yoshika S. Crider, Perrine Marcenac, Matthew Lozier, Lee Voth-Gaeddert, Daniele S. Lantagne, James R. Mihelcic, Qianjin Marina Zhang, Craig Just, Amy J. Pickering
Summary: This article reviews 27 evaluations of passive chlorinators and identifies challenges and research priorities for scaling up the deployment of passive chlorinators, including strengthening chlorine supply chains, validating business models and financial sustainability, leveraging monitoring tools, and designing passive chlorinators compatible with handpumps. The article also proposes a set of evaluation indicators for standardized assessment of the technical performance and financial sustainability of passive chlorinators, and highlights the limitations of chlorine-based disinfection and the importance of addressing chemical contamination in drinking water supplies.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Medicine, General & Internal
Jesse D. Contreras, Mahfuza Islam, Andrew Mertens, Amy J. Pickering, Benjamin F. Arnold, Jade Benjamin-Chung, Alan E. Hubbard, Mahbubur Rahman, Leanne Unicomb, Stephen P. Luby, John M. Colford, Ayse Ercumen
Summary: This study evaluated the long-term effects of a sanitation intervention on diarrhea and acute respiratory infection (ARI) prevalence among children. The results showed that the prevalence of diarrhea was reduced by 11.9% in the sanitation group compared to the control group, after 1.5 to 3.5 years of intervention implementation. However, there was no difference in ARI prevalence between the two groups.
Article
Infectious Diseases
Mahbubur Rahman, Mahfuza Islam, Solaiman Doza, Abu Mohammed Naser, Abul Kasham Shoab, Julia Rosenbaum, Md. Shariful Islam, Leanne Unicomb, Thomas F. Clasen, Ayse Ercumen
Summary: Pit latrines, the most common latrine technology in rural Bangladesh, can contaminate aquifers if untreated effluent is released from the pits. Sand barriers installed around the latrine pit can reduce contamination, but they can also accelerate pit fill-up. This study aimed to evaluate the decomposition of fecal sludge and survival of soil-transmitted helminth ova in latrines with and without sand barriers in coastal Bangladesh. The results showed that sand barriers increased the frequency of pit emptying and had higher counts of helminth ova, indicating the need for further research on latrine technologies that can isolate pathogens and achieve rapid decomposition.
PLOS NEGLECTED TROPICAL DISEASES
(2022)
Article
Engineering, Environmental
Yoshika S. Crider, Sanjeena Sainju, Rubika Shrestha, Guillaume Clair-Caliot, Ariane Schertenleib, Bal Mukunda Kunwar, Madan R. Bhatta, Sara J. Marks, Isha Ray
Summary: Over 2 billion people lack access to safe drinking water, but passive chlorination technologies have the potential to improve how rural households gain access to safe drinking water.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Public, Environmental & Occupational Health
Mehjabin Tishan Mahfuz, Farhana Sultana, Erin C. Hunter, Farjana Jahan, Farhana Akand, Shifat Khan, Mosammat Mobashhara, Mahbubur Rahman, Mahbub-Ul Alam, Leanne Unicomb, Stephen P. Luby, Peter J. Winch
Summary: Teachers in Bangladesh recognize the importance of school-based puberty and menstruation education for students' perception and preparedness. However, barriers such as pressure from school authorities and community, lack of time and pre-service training hinder the successful delivery of such programs. Improving education on these topics feasibly and sustainably should involve revising the national curriculum, providing adequate training and support for teachers, and incorporating content into national examinations for prioritization.
GLOBAL HEALTH ACTION
(2021)
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)