Chengbin Sun, Lingjie Song, Xiaoli Dong, Xiufang Zhang, Guanlong Wang
{"title":"Integrating adsorption and in-situ catalytic regeneration on N doped carbon aerogel for sustainable continuous-flow water treatment.","authors":"Chengbin Sun, Lingjie Song, Xiaoli Dong, Xiufang Zhang, Guanlong Wang","doi":"10.1016/j.envres.2024.120549","DOIUrl":"10.1016/j.envres.2024.120549","url":null,"abstract":"<p><p>Peroxymonosulfate (PMS) activation renders a promising way for in-situ regeneration of carbon-based adsorbents towards sustainable water decontamination, but the effects of structure and composition of carbon adsorbent on its adsorption and catalytic regeneration performances remains unclear. Herein, the nitrogen-doped carbon aerogels (NCAs) were prepared to couple adsorption and PMS activation in a continuous fixed-bed reactor for effective bisphenol A (BPA) removal. The nitrogen species and carbon structure of NCAs were varied by changing carbonization temperature (700 °C, 800 °C, 900 °C and 1000 °C) to investigate their correlation with the adsorption and catalytic regeneration abilities of NCAs. Results showed the PMS activation significantly boosted the adsorption capacity of NCAs and extended the breakthrough time of BPA. The optimal NCA-800/PMS system showed 1.8 times higher adsorption capacity and 37.5 times longer breakthrough time that those of NCA-800 alone. Moreover, the NCA-800/PMS system also demonstrated good adaptability across a broad pH range (3.0-12.0) and maintained high performance in real surface water matrices. Experimental and characteristic results collectively confirmed the critical roles of carbon structure and N species of NCA in adsorption and catalytic regeneration: On one hand, the intrinsic carbon defects served as the main adsorption site for BPA; on the other hand, the pyrrolic N and graphitic N promoted PMS adsorption and surface-mediated electron transfer process, while the electron-deficient C atoms adjacent to N species induced PMS oxidation into <sup>1</sup>O<sub>2</sub>, which jointly contributed to efficient BPA degradation for in-situ regeneration of NCA.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"120549"},"PeriodicalIF":7.7,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142790614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"New mechanisms of PM<sub>2.5</sub> induced atherosclerosis: Source dependent toxicity and pathogenesis.","authors":"Xinyi Niu, Jinjin Yu, Jian Sun, Xinya Zhang, Lili Zhou, Xinyao Liu, Kun He, Zezhi Peng, Xiaofeng Niu, Hongmei Xu, Junji Cao, Kin-Fai Ho, Pengfei Liu, Zhenxing Shen","doi":"10.1016/j.envres.2024.120535","DOIUrl":"10.1016/j.envres.2024.120535","url":null,"abstract":"<p><p>Exposure to fine particulate matter (PM<sub>2.5</sub>) is recognized to induce atherosclerosis, but the underlying mechanisms are not fully understood. This study used ambient PM<sub>2.5</sub> samples collected in one of the highly polluted regions of Guanzhong Plain in China (2017-2020) and an ApoE<sup>-/-</sup> mouse model to investigate the association between exposure to PM<sub>2.5</sub> and atherosclerosis. Despite a substantial decrease in the ambient concentration of PM<sub>2.5</sub> from 266.7 ± 63.9 to 124.4 ± 37.7 μg m<sup>-3</sup> due to the execution of a series of emission controls, cardiovascular toxicity due to exposure to PM<sub>2.5</sub> remained at a significantly high level compared with the Control group. Moreover, the result highlighted that biomass burning (BB) showed an increased contribution to PM<sub>2.5</sub> while most anthropogenic sources decreased. This study found that PM<sub>2.5</sub> exposure led to vascular oxidative stress and inflammation, accelerated atherosclerotic plaque growth, and altered vascular proliferation pathways. The latter two mechanisms provide new insights into how PM<sub>2.5</sub> enhanced the processes of atherosclerosis, promoted lipoprotein cholesterol (LDL-C) absorption in vascular cells, and directed stimulation of cell function factors (VEGF and MCP-1), which are highly associated by PI3K/AKT signaling pathway. Polycyclic aromatic hydrocarbons (PAHs) and their derivatives, and certain biomarkers showed strong correlations with bio-reactivity, while BB was identified as a major contributor to toxicity of PM<sub>2.5</sub>. The findings offer new insights into the role of PM<sub>2.5</sub> promoting atherosclerosis and provide recommendations for controlling PM<sub>2.5</sub> pollution to prevent and treat the disease particularly for susceptible populations.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"120535"},"PeriodicalIF":7.7,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142790700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Adriana Fernandes Veludo, Bram Stroobandt, Han Van Bladel, Nekane Sandoval-Diez, Mònica Guxens, Wout Joseph, Martin Röösli
{"title":"Exploring RF-EMF levels in Swiss microenvironments: An evaluation of environmental and auto-induced downlink and uplink exposure in the era of 5G.","authors":"Adriana Fernandes Veludo, Bram Stroobandt, Han Van Bladel, Nekane Sandoval-Diez, Mònica Guxens, Wout Joseph, Martin Röösli","doi":"10.1016/j.envres.2024.120550","DOIUrl":"10.1016/j.envres.2024.120550","url":null,"abstract":"<p><p>The advancement of cellular networks requires updating measurement protocols to better study radiofrequency electromagnetic field (RF-EMF) exposure emitted from devices and base stations. This paper aims to present a novel activity-based microenvironmental survey protocol to measure environmental, auto-induced downlink (DL), and uplink (UL) RF-EMF exposure in the era of 5G. We present results when applying the protocol in Switzerland. Five study areas with different degrees of urbanization were selected, in which microenvironments were defined to assess RF-EMF exposure in the population. Three scenarios of data transmission were performed using a user equipment in flight mode (non-user), inducing DL traffic (max DL), or UL traffic (max UL). The exposimeter ExpoM-RF 4, continuously measuring 35 frequency bands ranging from broadcasting to Wi-Fi sources, was carried in a backpack and placed 30 cm apart from the user equipment. The highest median RF-EMF levels during the non-user scenario were measured in an urban business area (1.02 mW/m<sup>2</sup>). Here, DL and broadcasting bands contributed the most to total RF-EMF levels. Compared to the non-user scenario, exposure levels increased substantially during max DL due to the 5G band at 3.5 GHz with 50% of the median levels between 3.20 and 12.13 mW/m<sup>2</sup>, mostly in urban areas. Note that the time-division nature of this band prevents distinguishing between exposure contribution from DL beamforming or UL signals emitted at this frequency. The highest levels were measured during max UL, especially in rural microenvironments, with 50% of the median levels between 12.08 and 37.50 mW/m<sup>2</sup>. Mobile UL 2.1 GHz band was the primary contributor to exposure during this scenario. The protocol was successfully applied in Switzerland and used in nine additional countries. Inducing DL and UL traffic resulted in a substantial increase in exposure, whereas environmental exposure levels remained similar to previous studies. This data is important for epidemiological research and risk communication/management.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"120550"},"PeriodicalIF":7.7,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142790695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Julia E Rager, Lauren E Koval, Elise Hickman, Caroline Ring, Taylor Teitelbaum, Todd Cohen, Giulia Fragola, Mark J Zylka, Lawrence S Engel, Kun Lu, Stephanie M Engel
{"title":"The environmental neuroactive chemicals list of prioritized substances for human biomonitoring and neurotoxicity testing: A database and high-throughput toxicokinetics approach.","authors":"Julia E Rager, Lauren E Koval, Elise Hickman, Caroline Ring, Taylor Teitelbaum, Todd Cohen, Giulia Fragola, Mark J Zylka, Lawrence S Engel, Kun Lu, Stephanie M Engel","doi":"10.1016/j.envres.2024.120537","DOIUrl":"10.1016/j.envres.2024.120537","url":null,"abstract":"<p><p>There is a diversity of chemicals to which humans are potentially exposed. Few of these chemicals have linked human biomonitoring data, and most have very limited neurotoxicity testing. Of particular concern are environmental exposures impacting children, who constitute a population of heightened susceptibility due to rapid neural growth and plasticity, yet lack biomonitoring data compared to other age/population subgroups. This study set out to develop a prioritized list of neuroactive substances, titled the Environmental NeuRoactIve CHemicals (ENRICH) list, to be used as a defined screening library in the evaluation of human biological samples, with emphasis on early childhood-relevant environmental exposures. In silico database mining approaches were used to prioritize chemicals based upon likelihood of neuroactivity, human exposure, and feasible detection in biological samples. Evidence of neuroactivity was compiled across in vitro high-throughput screening, animal testing, and/or human epidemiological findings. Chemicals were considered for their likelihood of human exposure and detection presence in biological samples (including metabolites), with additional evidence indicating presence within child-relevant products. The resulting list of 1827 chemicals were ranked using a Chemical Prioritization Index. Manual inclusion/exclusion criteria were employed for the top-ranking chemical candidates to ensure that chemicals were within the study's scope (i.e., environmentally relevant) and, for the purposes of biomonitoring, had properties amenable to mass spectrometry methods. These elements were combined to produce the ENRICH list of 250 top-ranking chemicals, spanning pesticides and those used in home maintenance, personal care, cleaning products, vehicles, arts and crafts, and consumer electronics, among other sources. Chemicals were additionally evaluated for high-throughput toxicokinetics to predict how much of a chemical and/or its metabolite(s) may reach urine, as an example biological matrix for practical use in biomonitoring efforts. This novel study couples databases and in silico-based predictions to prioritize chemicals in the environment with potential neurological impacts for future study.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"120537"},"PeriodicalIF":7.7,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142783717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Huixia Zhu, Huayi Zhu, Yu Tian, Xiaoxia Liang, Xia Yang
{"title":"The design and preparation of PDI modified NH<sub>2</sub>-MIL-101(Fe) for high efficiency removal of dimethoate in peroxymonosulfate system: Performance, mechanism, pathway and toxicity assessment.","authors":"Huixia Zhu, Huayi Zhu, Yu Tian, Xiaoxia Liang, Xia Yang","doi":"10.1016/j.envres.2024.120534","DOIUrl":"10.1016/j.envres.2024.120534","url":null,"abstract":"<p><p>The widespread use of organophosphorus pesticide dimethoate (DMT) in agriculture poses a threat to human health. In this work, the perylene tetracarboxylic diimide (PDI) modified NH<sub>2</sub>-MIL-101(Fe) (PDI/MIL) with strong covalent bond C(=O)-N were designed and prepared by a step solvothermal method. The synergistic effect between photocatalytic and peroxymonosulfate (PMS) activation for the DMT elimination over PDI/MIL was gained. Interestingly, PDI/MIL(1:10)/PMS showed boosting degradation efficiency (95.6%) for DMT under 18 min simulated sunlight irradiation. Its apparent reaction rate constant was 24.7 times higher than that of NH<sub>2</sub>-MIL-101(Fe)/PMS. Moreover, its reusability, stability and mineralization ability were evaluated, and a remarkable mineralization rate of 95.3% with 90 min was achieved. The enhanced activity were attributed to the formation of amide bond that exhibited superior charger transport ability and amount of produced active species. Combined the results obtained from the HPLC-MS and molecular structure characteristics of DMT analyzed by Fukui index, the degradation pathways were proposed. The toxicity of intermediates were predicted by Ecological Structure Activity Relationship (ECOSAR), Toxicity Estimation Software Tool (T.E.S.T.), and Vibrio fischeri experiments. Our work provided deep insights into the mechanisms of DMT degradation via photocatalysis-activated PMS over organic semiconductor modified metal organic frameworks.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"120534"},"PeriodicalIF":7.7,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142783695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yi Qu, Tianyu Zhang, Xin Wang, Yongliang Liu, Jianmin Zhao
{"title":"Synergistic effects of ocean acidification and sulfamethoxazole on immune function, energy allocation, and oxidative stress in Trochus niloticus.","authors":"Yi Qu, Tianyu Zhang, Xin Wang, Yongliang Liu, Jianmin Zhao","doi":"10.1016/j.envres.2024.120533","DOIUrl":"10.1016/j.envres.2024.120533","url":null,"abstract":"<p><p>Ocean acidification, a major consequence of climate change, poses significant threats to marine organisms, particularly when combined with other environmental stressors such as chemical pollution. This study investigated the physiological responses of Trochus niloticus to a 28-day exposure of ocean acidification and/or sulfamethoxazole, a commonly detected antibiotic in the South China Sea. Exposure to either acidification or sulfamethoxazole individually triggered adaptive responses through immune activation, antioxidant reactions, and metabolic adjustments. However, concurrent exposure resulted in significant adverse effects, including compromised immunity, oxidative damage, and disrupted energy budget. These findings provide new insights into how ocean acidification interacts with antibiotic pollution to synergistically impact marine gastropods, suggesting that multiple stressors may pose greater threats to T. niloticus populations than single stressors alone.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"120533"},"PeriodicalIF":7.7,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142783673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis of the effect of the quantity of inflow into Ebinur Lake on its ecological security.","authors":"L I N Qing, X U Wenqiang","doi":"10.1016/j.envres.2024.120517","DOIUrl":"10.1016/j.envres.2024.120517","url":null,"abstract":"<p><p>The ecological security of lakes in arid areas is crucial for the sustainable development of regional society and the economy. The threat of dry lake-bottom dust and degradation of vegetation around lakes has become increasingly significant. This study proposes the maintenance of an optimal water surface area to ensure the ecological safety goals of Ebinur Lake. The study also conducts a scenario analysis of the amount of water entering the lake. Utilizing a Systeme Hydrologique Europeen (MIKE SHE) watershed model with four different inflow scenarios, the study simulated the Ebinur Lake's area changes under various water replenishment scenarios. Replenishment scenarios that meet the ecological security goals were selected for this study. The results indicate that maintaining a lake surface area of 710 km<sup>2</sup> or more during warm season can prevent wind and sand fixation, while a lake surface area of no less than 500 km<sup>2</sup> during dry season may help maintain ecological security. To ensure ecological security during dry years, the Kuitun River should annually replenish the Ebinur Lake with 1.75 × 10<sup>8</sup> m<sup>3</sup>. These findings provide valuable insights a practical tool for the ecological restoration and management of lakes in arid areas.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"120517"},"PeriodicalIF":7.7,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142783581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Leveraging zebrafish models for advancing radiobiology: Mechanisms, applications, and future prospects in radiation exposure research.","authors":"Ting Xu, Fan Liu, Jiaxuan He, Peiye Xu, Junying Qu, Hanbing Wang, Jinghui Yue, Qinsi Yang, Wei Wu, Guoming Zeng, Da Sun, Xia Chen","doi":"10.1016/j.envres.2024.120504","DOIUrl":"10.1016/j.envres.2024.120504","url":null,"abstract":"<p><p>Ionizing radiation (IR) represents a significant risk to human health and societal stability. To effectively analyze the mechanisms of IR and enhance protective strategies, the development of more sophisticated animal models is imperative. The zebrafish, with its high degree of genomic homology to humans and the capacity for whole-body optical visualization and high-throughput screening, represents an invaluable model for the study of IR. This review examines the benefits of utilizing zebrafish as a model organism for research on IR, emphasizing recent advancements and applications. It presents a comprehensive overview of the methodologies for establishing IR models in zebrafish, addresses current challenges, and discusses future development trends. This paper provide theoretical support for elucidating the mechanisms of IR injury and developing effective treatment strategies.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"120504"},"PeriodicalIF":7.7,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142783616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}