Microalgal assemblages response to water quality remediation in coastal waters of Perth, Australia
Environ Pollut. 2024 Apr 27:124017. doi: 10.1016/j.envpol.2024.124017. Online ahead of print.ABSTRACTNutrient reduction is an essential environmental policy for water quality remediation, but climate change can offset the ecological benefits of nutrient reduction and lead to the difficulty of environmental evaluation. Here, based on the records of three lipid microalgal biomarkers and stable isotopes of carbon and nitrogen in two sediment cores from the embayment of Perth, Australia, we reconstructed the microalgal biomasses (diatoms, dinoflagellates and coccolithophores) over the past century and evaluated the ecological ...
Source: Environmental Pollution - April 30, 2024 Category: Environmental Health Authors: Chongran Zhou Dongyan Liu John Keesing Ning Zhao Oscar Serrano Pere Masqu é Zineng Yuan Yonghao Jia Yujue Wang Source Type: research
Current status of microbial source tracking applications in constructed wetlands serving as nature-based solutions for water management and wastewater treatment
Environ Pollut. 2024 Apr 27:124076. doi: 10.1016/j.envpol.2024.124076. Online ahead of print.ABSTRACTMicrobial source tracking (MST) has been recognised as an effective tool for determining the origins and sources of faecal contamination in various terrestrial and aquatic ecosystems. Thus, it has been widely applied in environmental DNA (eDNA) surveys to define specific animal- and human-associated faecal eDNA. In this context, identification of and differentiation between anthropogenic and zoogenic faecal pollution origins and sources are pivotal for the evaluation of waterborne microbial contamination transport and the a...
Source: Environmental Pollution - April 30, 2024 Category: Environmental Health Authors: Adam M Paruch Lisa Paruch Source Type: research
Daily Scale Air Quality Index Forecasting using Bidirectional Recurrent Neural Networks: Case Study of Delhi, India
Environ Pollut. 2024 Apr 27:124040. doi: 10.1016/j.envpol.2024.124040. Online ahead of print.ABSTRACTThis research was established to accurately forecast daily scale air quality index (AQI) which is an essential environmental index for decision-making. Researchers have projected different types of models and methodologies for AQI forecasting, such as statistical techniques, machine learning (ML), and most recently deep learning (DL) models. The modelling development was adopted for Delhi city, India which is a major city with air pollution issues simialir to entire urban cities of India especially during winter seasons. Th...
Source: Environmental Pollution - April 30, 2024 Category: Environmental Health Authors: Chaitanya Baliram Pande Nand Lal Kushwaha Omer A Alawi Saad Sh Sammen Lariyah Mohd Sidek Zaher Mundher Yaseen Subodh Chandra Pal Okan Mert Katipo ğlu Source Type: research
Experimental and simulation studies on the improvement of coal dust pollution by an aqueous solution of sodium α-alkenylsulfonate and amino acid-based surfactants
Environ Pollut. 2024 Apr 27:124041. doi: 10.1016/j.envpol.2024.124041. Online ahead of print.ABSTRACTThe use of surfactants is crucial for the prevention and control of coal dust pollution in coal mining operation areas, yet there still exist many challenges in the control of coal dust pollution. In this paper, the green biomass-based amino acid surfactant sodium myristoyl glutamate (SMG) and the anionic surfactant sodium α-alkenyl sulfonate (AOS) were selected to investigate the improvement of coal dust wettability by single and binary solutions from the macroscopic and microscopic perspectives. Molecular simulations wer...
Source: Environmental Pollution - April 30, 2024 Category: Environmental Health Authors: Huajun Liu Wen Nie Qifan Tian Qiu Bao Wenjin Niu Ruoxi Li Xiaohan Zhang Stephen Nyabire Akanyange Source Type: research
Vortex-assisted dispersive micro-solid-phase extraction using silica-supported Fe < sub > 2 < /sub > O < sub > 3 < /sub > -modified khat ( < em > C < /em > atha edulis) biochar nanocomposite followed by GC-MS for the determination of organochlorine pesticides in juice samples
J Environ Sci Health B. 2024 Apr 30:1-14. doi: 10.1080/03601234.2024.2336572. Online ahead of print.ABSTRACTIn this paper, dispersive micro-solid phase extraction technique was developed for the purpose of extracting and preconcentrating organochlorine pesticide residues in juice samples before their separation and quantitative analysis by gas chromatography-mass spectrometry. A sorbent composed of a silica-supported Fe2O3-modified khat leftover biochar nanocomposite (SiO2-Fe2O3-KLBNC) was implemented in the process. To improve the dispersion of the sorbent in the solution, vortex mixer was employed. Experimental parameter...
Source: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes - April 30, 2024 Category: Environmental Health Authors: Kero Assefa Ago Abera Gure Shimeles Addisu Kitte Jemere Kochito Yerosan Buzayo Balcha Source Type: research
The Roles of Neuropeptide Y in Respiratory Disease Pathogenesis via the Airway Immune Response
Acta Med Okayama. 2024 Apr;78(2):95-106. doi: 10.18926/AMO/66912.ABSTRACTThe lungs are very complex organs, and the respiratory system performs the dual roles of repairing tissue while protecting against infection from various environmental stimuli. Persistent external irritation disrupts the immune responses of tissues and cells in the respiratory system, ultimately leading to respiratory disease. Neuropeptide Y (NPY) is a 36-amino-acid polypeptide and a neurotransmitter that regulates homeostasis. The NPY receptor is a seven-transmembrane-domain G-protein-coupled receptor with six subtypes (Y1, Y2, Y3, Y4, Y5, and Y6). O...
Source: Acta Medica Okayama - April 30, 2024 Category: General Medicine Authors: Junko Itano Katsuyuki Kiura Yoshinobu Maeda Nobuaki Miyahara Source Type: research
From Wastewater to Clean Water: Recent Advances on the Removal of Metronidazole, Ciprofloxacin, and Sulfamethoxazole Antibiotics from Water through Adsorption and Advanced Oxidation Processes (AOPs)
Environ Res. 2024 Apr 27:119029. doi: 10.1016/j.envres.2024.119029. Online ahead of print.ABSTRACTAntibiotics released into water sources pose significant risks to both human health and the environment. This comprehensive review meticulously examines the ecotoxicological impacts of three prevalent antibiotics-ciprofloxacin, metronidazole, and sulfamethoxazole-on the ecosystems. Within this framework, our primary focus revolves around the key remediation technologies: adsorption and advanced oxidation processes (AOPs). In this context, an array of adsorbents is explored, spanning diverse classes such as biomass-derived bios...
Source: Environmental Research - April 30, 2024 Category: Environmental Health Authors: Amirreza Erfani Gahrouei Sajjad Vakili Ali Zandifar Sina Pourebrahimi Source Type: research
Ceftiofur in swine manure contributes to reducing pathogens and antibiotic resistance genes during composting
In this study, we collected samples from two distinct treatments of swine manure compost with and without ceftiofur (CEF), and identified the ARGs, mobile genetic elements (MGEs), and bacterial community by metagenomic sequencing. The impacts of CEF on the bacterial community composition and fate of ARGs and MGEs were investigated. With increasing composting temperature and pH, the concentration of CEF in the manure decreased rapidly, with a degradation half-life of 1.12 d and a 100% removal rate after 10 d of aerobic composting. Metagenomics demonstrated that CEF in the manure might inhibit the growth of Firmicutes and Pr...
Source: Environmental Research - April 30, 2024 Category: Environmental Health Authors: Wenjin Ma Boyu An Xiangyue Xu Meixia Huo Kun Mi Xiaoyuan Tian Ziyan Kou Aoran Tang Guyue Cheng Lingli Huang Source Type: research
Hydrochemical and microbial community characteristics and the sources of inorganic nitrogen in groundwater from different aquifers in Zhanjiang, Guangdong Province, China
This study integrated water quality parameters, dual isotopes (δ15N-NO3- and δ18O-NO3-), and 16S rRNA data to clarify the hydrochemical and microbial characteristics of loose rock pore water (LRPW), layered bedrock fissure water (LBFW), and volcanic rock pore fissure water (VRPFW) in the Zhanjiang area and to determine inorganic nitrogen pollution and sources. The results show that the hydrochemistry of groundwater in different aquifers is complex and diverse, which is mainly affected by rock weathering and atmospheric precipitation, and the cation exchange is strong. High NO3- concentration reduces the richness of the m...
Source: Environmental Research - April 30, 2024 Category: Environmental Health Authors: Rentao Liu Jinrong Qiu Shuang Wang Renchuan Fu Xiaochen Qi Chuanqi Jian Qizhi Hu Jingwen Zeng Na Liu Source Type: research
When everyone's doing it: The relative effects of geographical context and social determinants of health on teen birth rates
Health Place. 2024 Apr 28;87:103249. doi: 10.1016/j.healthplace.2024.103249. Online ahead of print.ABSTRACTGeographic disparities in teen birth rates in the U.S. persist, despite overall reductions over the last two decades. Research suggests these disparities might be driven by spatial variations in social determinants of health (SDOH). An alternative view is that "place" or "geographical context" affects teen birth rates so that they would remain uneven across the U.S. even if all SDOH were constant. We use multiscale geographically weighted regression (MGWR) to quantify the relative effects of geographical context, inde...
Source: Health and Place - April 30, 2024 Category: Environmental Health Authors: Sarah Bardin A Stewart Fotheringham Source Type: research
Algae-leached DOM inhibits the Hg(II) reduction and uptake by lettuce in aquatic environments under light conditions
In this study, we compared the efficiency of Hg(II) photoreduction mediated by three types of algae leaching dissolved organic matter (DOM) and humic acid (DOM-HA). Especially, we investigated the potential effects of algae-leached DOM on the photoreduction of Hg(II) and its subsequent uptake by lettuce, which serves as an indicator of Hg bioavailability for aquatic plants. The results revealed that under light conditions, the conversion of Hg(II) to Hg(0) mediated by algae-leached DOM and DOM-HA was 6.4-39.9 % higher compared to dark condition. Furthermore, the free radical quenching experiment demonstrated that the reduc...
Source: Aquatic Toxicology - April 30, 2024 Category: Toxicology Authors: Xu Yang Ruihong Yu Tantan Wang Xin Wen Yubo He Zihao Li Chi Ma Wenhao Chen Chang Zhang Source Type: research
Tartaric Acid Cross-Linking Polyvinyl Alcohol as Degradable Separators for Rechargeable Lithium Ion Batteries
ChemSusChem. 2024 Apr 30:e202400359. doi: 10.1002/cssc.202400359. Online ahead of print.ABSTRACTThe escalating focus on environmental concerns and the swift advancement of eco-friendly biodegradable batteries raises a pressing demand for enhanced material design in the battery field. The traditional polypropylene (PP) that is monopolistically utilized in the commercial LIBs is hard to recycle. In this work, we prepare a novel water degradable separators via the cross-linking of polyvinyl alcohol (PVA) and dibasic acid (tartaric acid, TA). Through the integration of non-solvent liquid-phase separation, we successfully produ...
Source: ChemSusChem - April 30, 2024 Category: Chemistry Authors: Huimin Yuan Kun Liu Wen Luo Zhiqiang Wang Chunliu Yan Jing Hu Xinyang Wang Guiyu Liu Zhenghe Xu Zhouguang Lu Source Type: research
Microplastic in Dredged Sediments: From Databases to Strategic Responses
The objective of this study was to review existing literature on MPs in sediments to improve fundamental knowledge of MP exposures and develop a publicly available database of MPs in sediments. Twelve percent of the reviewed papers (nine studies) included sediment core samples with MP concentrations generally decreasing with depth, peaking in the top 15 cm. The remaining papers evaluated surficial grab samples (0 to 15 cm depth) from various water bodies with MPs detected in almost every sample. Median MP concentrations (items/kg dry sediment) increased in this order: lakes and reservoirs (184), estuarine (263), Great Lake...
Source: Bulletin of Environmental Contamination and Toxicology - April 30, 2024 Category: Environmental Health Authors: J L Wilkens A J Calomeni-Eck J Boyda A Kennedy A D McQueen Source Type: research
Invited Commentary: Is the Polysocial Score Approach Valuable for Advancing Social Determinants of Health Research?
Am J Epidemiol. 2024 Apr 29:kwae057. doi: 10.1093/aje/kwae057. Online ahead of print.ABSTRACTSocial determinants of health (SDOH) encompass the social environmental factors and lived experiences that collectively shape an individual's health. Recently, the polysocial score approach has been introduced as an innovative method for capturing the cumulative impact of a broad spectrum of social factors. This approach offers a promising opportunity to complement and enhance conventional methodologies in the advancement of SDOH research. In this issue of the Journal, Jawadekar et al. (Am J Epidemiol. XXXX;XXX(XX):XX-X-XXXX) evalu...
Source: Am J Epidemiol - April 30, 2024 Category: Epidemiology Authors: Chenkai Wu Source Type: research
A Zero-Gap Gas Phase Photoelectrolyzer for CO2 Reduction with Porous Carbon Supported Photocathodes
ChemSusChem. 2024 Apr 30:e202400518. doi: 10.1002/cssc.202400518. Online ahead of print.ABSTRACTA modified Metal-Organic Framework UiO-66-NH2-based photocathode in a zero-gap gas phase photoelectrolyzer was applied for CO2 reduction. Four types of porous carbon fiber layers with different wettability were employed to tailor the local environment of the cathodic surface reactions, optimizing activity and selectivity towards formate, methanol, and ethanol. Results are explained by mass transport through the different type and arrangement of carbon fiber support layers in the photocathodes and the resulting local environment ...
Source: ChemSusChem - April 30, 2024 Category: Chemistry Authors: Yujie Zhao Ivan Merino-Garcia Jonathan Sanchez Albo Andreas Kaiser Source Type: research
