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SSRN 2025年

作者： Li, Fenghong Song, Xiaojuan Wu, Yingmei Huang, Mingzheng Huang, Qun Li, Xin School of Public Health Guizhou Province Engineering Research Center of Health Food Innovative Manufacturing Guizhou Medical University Guiyang550025 China College of Food and Pharmaceutical Engineering Guizhou Institute of Technology Guiyang550003 China The Key Laboratory of Environmental Pollution Monitoring and Disease Control China

To solve the problem of kiwifruit's short edible period, gelatin coating (GC) and lemon essential oil-gelatin coating (LGC) were prepared to preserve kiwifruit, and the effects of different coatings on kiwifruit flavor and quality were evaluated through the characterization of physiological changes, volatile flavors, and tastes. The results revealed that coating as a gas and water vapor barrier may lower kiwifruit respiration rate, restrict the loss of soluble solids, titratable acid, and ascorbic acid, maintaining its water content, color, hardness, and antioxidant capacity at a high level. Regarding flavor, the coating's gas and microbial barriers were effective at preserving kiwifruit flavor and inhibiting the formation and accumulation of off-flavor compounds;meanwhile, correlation analysis revealed a high positive association between respiration rate and key flavor compounds levels in kiwifruit. Furthermore, the coated group tasted more like fresh kiwifruit. Finally, LGC outperformed GC in maintaining the overall flavor quality of kiwifruit. © 2025, The Authors. All rights reserved.

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Oxygen vacancies induce boosted photocarriers dynamics in WO3/Ti3C2 micro-nano structures with enriched 2D-2D interfaces for trimethylamine abatement

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Chemical Engineering Journal 2025年 514卷

作者： Duan, Zeyu Zhong, Ao Tang, Qijun Wang, Haiqiang Wu, Zhongbiao College of Environmental & Resources Science Zhejiang University Key Laboratory of Environment Remediation and Ecological Health Ministry of Education Hangzhou310058 China Zhejiang Tianlan Environmental Protection Technology Co. Ltd. Zhejiang Provincial Key Laboratory of Air Pollution Monitoring and Synergistic Control Hangzhou311202 China School of Science and Engineering The Chinese University of Hong Kong Guangdong Shenzhen518172 China

Removing nitrogenous malodorous VOCs by photocatalytic technology is of great importance, but efficient catalysts for nitrogen-containing molecules still need to be developed. Here, we have successfully synthesized WO3/Ti3C2 microstructures with enriched 2D-2D interfaces and reported boosted photogenerated carrier dynamics induced by oxygen vacancies at the interfaces using trimethylamine (TMA) as a model for nitrogen-containing pollutants. Experimental results and theoretical calculations revealed that the oxygen vacancy modification could significantly improve the adsorption of TMA molecules due to the nucleophilic nature of the N atom. In addition, benefiting from the intimate 2D-2D bonding between Ti3C2 MXene and WO3 nanosheets, the electron transport at the interfaces was greatly reinforced, leading to an almost 5-fold lifetime prolongation of photogenerated holes. Under visible-light irradiation, over 90 % elimination of 50 ppm TMA could be attained in 30 min. This work opens new avenues to construct visible-light-responsive semiconductor materials for nitrogen-containing VOCs’ removal. © 2025 Elsevier B.V.

关键词： Nanosheets

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Multimedia contamination characteristics, risk assessment, and source quantification of phthalates in the Shaying River Basin, China

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Environmental Geochemistry and Health 2025年第6期47卷 1-19页

作者： Hao, Minghui Zuo, Qiting Zhao, Xinna Shi, Shujuan Wu, Junfeng Gao, Hongbin Lu, Yizhen School of Municipal and Environmental Engineering Henan University of Urban Construction Pingdingshan467036 China Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology School of Municipal and Environmental Engineering Henan University of Urban Construction Pingdingshan467036 China School of Water Conservancy and Transportation Zhengzhou University Zhengzhou450001 China Henan International Joint Laboratory of Water Cycle Simulation and Environmental Protection Zhengzhou450001 China Henan Ecological Environmental Monitoring Center Zhengzhou450003 China

Phthalates (PAEs), a class of typical endocrine-disrupting chemicals, have been widely detected in the environment due to their prevalent use as plasticizers in plastic products. This study investigates the multimedia contamination characteristics and potential ecological risks of PAEs in water, soil, and sediments of the Shaying River (SYR) Basin. A Geodetector model (GDM) was employed to identify the key drivers influencing the spatial distribution of PAEs, while factor analysis and the Positive Matrix Factorization (PMF) model were utilized to quantitatively apportion the potential sources of PAEs. Results revealed that the concentrations and spatial variation of PAEs were significantly higher in soil and sediments than in water, with distinct compositional profiles. Water samples exhibited a higher proportion of low-molecular-weight PAEs compared to soil and sediment, where high-molecular-weight PAEs prevailed to a lesser extent. Notably, among the 6 target PAEs, di-n-butyl phthalate (DBP) and di-(2-ethylhexyl) phthalate (DEHP) were uniformly the primary PAEs in water, soil, and sediment of the SYR Basin, posing higher ecological risks to algae, crustaceans, amphibians, and fish compared to the other 4 PAEs. The spatial distribution of PAEs in the SYR Basin was comprehensively influenced by land use, precipitation, human activities, and soil types. Key factors vary across media, but the interaction between popdensity and other variables significantly enhanced the interpretation degree, jointly shaping the PAEs distribution patterns. Primary sources of PAEs in the basin were sewage and wastewater discharges (37.0%), nonpoint industrial sources (36.4%), and domestic sources (25.6%). © The Author(s), under exclusive licence to Springer Nature B.V. 2025.

关键词： Risk assessment

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A comprehensive analysis of O₃ variation and source contributions of VOCs-oriented to O₃ pollution episodes over Jinan city, China

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Atmospheric pollution Research 2025年第8期16卷

作者： Fan, Lianhuan Gu, Shumao Yan, Huaizhong Zhang, Junxiao Zhang, Miao Wei, Xiaofeng Zhang, Guiqin Key Laboratory of Beijing on Regional Air Pollution Control College of Environmental Science and Engineering Beijing University of Technology Beijing China School of Municipal and Environmental Engineering Shandong Jianzhu University Shandong Jinan China Shandong Provincial Eco-environment Monitoring Center Shandong Jinan China

Although severe ozone (O3) pollution has been frequently observed during summer over Jinan city in northern China, which underscores the necessity of mitigating O3 pollution, the key formation processes and prominent ... 详细信息

Although severe ozone (O₃) pollution has been frequently observed during summer over Jinan city in northern China, which underscores the necessity of mitigating O₃ pollution, the key formation processes and prominent sources of O₃ pollution episode remain poorly characterized. In this study, the Weather Research and Forecasting (WRF)-Community Multiscale Air Quality (CMAQ) modeling system was employed to investigate the formation mechanism of O₃ pollution during summer in Jinan. In addition, the Integrated Source Apportionment Method (ISAM) was subsequently applied to determine the major VOCs contributors to elevated O₃ levels. During O₃ pollution episodes, increased O₃ concentrations generated by gas-chemistry at high altitudes were transported to the ground through vertical transport, exacerbating surface-level O₃ pollution caused by photochemical reactions during daytime. The declined height of the planetary boundary layer (PBLH) and vertical mixing, which form O₃-rich residual layers, were identified as the key drivers of the O₃ accumulation and enhancement near the surface during nighttime. Furthermore, ISAM results indicate that terminal olefin carbon bonds (OLE), internal olefin carbon bonds (IOLE), and ethene (ETH) playing essential roles in O₃ formation, collectively contributing up to 60 %. This implicates great importance of vehicle exhaust and the use of liquefied petroleum gas (LPG) and natural gas (NG) over Jinan city. Our findings offer possible explanations for O₃ pollution episode and provide a quantitative understanding of O₃ source apportionment, guiding the control strategy of VOCs-oriented on O₃ mitigation. © 2025 Turkish National Committee for Air pollution Research and control

关键词： Active VOCs contributions CMAQ-ISAM model Formation process analysis Ozone pollution characteristics Source apportionment

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Spatiotemporal variations and inequalities in global traffic-sourced PM2.5 exposure

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Environment International 2025年 199卷 109492页

作者： Yu, Pei Xu, Rongbin Zhang, Yiwen Ye, Tingting Yu, Wenhua Chen, Gongbo Wen, Bo Yue, Xu Li, Shanshan Guo, Yuming Climate Air Quality Research Unit School of Public Health and Preventive Medicine Monash University MelbourneVIC Australia Chongqing Emergency Medical Center Chongqing University Central Hospital School of Medicine Chongqing University Chongqing China Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Collaborative Innovation Center of Atmospheric Environment and Equipment Technology Joint International Research Laboratory of Climate and Environment Change School of Environmental Science and Engineering Nanjing University of Information Science and Technology Nanjing China

Traffic emission is a major source of ambient fine particulate matter with aerodynamic diameter less than 2.5 µm (PM2.5) pollution. However, little is known about the global population exposure to traffic-sourced PM2.5 at high spatiotemporal resolutions. This study, utilizing chemical transport and machine learning models, estimated global daily traffic-sourced PM2.5 at a 0.25° × 0.25° spatial resolution during 2000–2019. The results showed that global population-weighted average traffic-sourced PM2.5 concentrations increased, aligning with the trend in total PM2.5 concentrations, rising from 5.8 µg/m3 (contributing to 15.3 % of global total PM2.5) in 2000–2009 to 6.6 µg/m3 (16.4 % of total PM2.5) in 2010–2019. Our analysis showed that the increasing trend of traffic-sourced PM2.5 contributed 36.0 % to the global increasing trend of total PM2.5. The increasing traffic-sourced PM2.5 were primarily in Asia, while Europe, North America, and Oceania experienced decreasing trends. Higher concentrations or proportions of traffic-sourced PM2.5 generally occur during colder months, especially in Asia, and in countries with higher socioeconomic levels. The top ten countries with the highest traffic PM2.5 proportion in both decades are all high-income countries. Inequalities existed both between and within countries/territories assessed by the Gini index. Compared to total PM2.5 exposure, traffic-sourced PM2.5 exposure demonstrated greater inequalities at the global level, within and between countries. Our study provides essential data for identifying high-risk traffic-related PM2.5 exposure areas, assessing regional pollution control effectiveness, exploring health impacts, and promoting environmental justice. © 2025 The Authors

关键词： Air quality

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Oxygen Vacancies Induce Boosted Photocarriers Dynamics in Wo3/Ti3c2 Micro-Nano Structures with Enriched 2d-2d Interfaces for Trimethylamine Abatement

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SSRN 2025年

作者： Duan, Zeyu Zhong, Ao Tang, Qijun Wang, Haiqiang Wu, Zhongbiao College of Environmental & Resources Science Zhejiang University Key Laboratory of Environment Remediation and Ecological Health Ministry of Education Hangzhou310058 China Zhejiang Tianlan Environmental Protection Technology Co. Ltd. Zhejiang Provincial Key Laboratory of Air Pollution Monitoring and Synergestic Control Hangzhou311202 China School of Science and Engineering The Chinese University of Hong Kong Guangdong Shenzhen518172 China

Purification of nitrogenous malodorous VOCs using photocatalytic technology is of great importance, but efficient catalysts for nitrogen-containing molecules still need to be developed. Here, we have successfully synthesized WO3/Ti3C2 microstructures with enriched 2D-2D interfaces and reported boosted photogenerated carrier dynamics induced by oxygen vacancies at the interfaces using trimethylamine as a model for nitrogen-containing pollutants. Experimental results and theoretical calculations revealed that the oxygen vacancy modification could significantly improve the adsorption of trimethylamine molecules due to the nucleophilic nature of the N atom. In addition, benefiting from the intimate 2D-2D bonding between Ti3C2 MXene and WO3 nanosheets, the electron transport at the interfaces was greatly reinforced, and over 90% elimination of 50 ppm trimethylamine could be achieved within 30 min under visible-light irradiation. This work opens new avenues to construct visible-light-responsive semiconductor materials for nitrogen-containing VOCs’removal. © 2025, The Authors. All rights reserved.

关键词： Nanosheets

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Visual Glucose Sensing Via Dispersive Liquid-Liquid Microextraction and Anion Exchange of Cspbbr3 Perovskite Nanocrystals

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SSRN 2025年

作者： Hong, Wenping Li, Yishan Luo, Jiamin Zhao, Shanshan Shun, Libo Li, Feiming Cai, Zhixiong Lin, Jinming Zhang, Maosheng College of Chemistry Chemical Engineering and Environment Minnan Normal University Zhangzhou363000 China Fujian Province Key Laboratory of Modern Analytical Science and Separation Technology Minnan Normal University Zhangzhou363000 China Fujian Provincial University Key Laboratory of Pollution Monitoring and Control Minnan Normal University Zhangzhou36300 China Department of Chemistry Tsinghua University Beijing100084 China The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology China

A convenient, rapid, and reliable glucose sensor is especially essential in the food and beverage fields because excessive glucose intake can increase the risk of cardiovascular disease, diabetes, and hypertension. Here, a sensitive visual sensing and detection method for glucose has been successfully designed and constructed based on the dispersive liquid-phase microextraction (DLLME) technique combined with anion exchange in CsPbBr3 perovskite nanocrystals (PNCs). Benefiting not only from the enrichment effect of microextraction techniques but also from the sensitive and rapid anion-exchange capabilities of PNCs, this method displayed high sensitivity and a low detection limit of 3.25 μg/mL. To further demonstrate the feasibility, this approach was used for the determination of glucose in real samples, such as sugar-free beverages, and showed good selectivity and recoverability, ranging from 95.6% to 107.6%. Additionally, a test paper-based detection method was established, utilizing significant fluorescence color changes for sensitive, portable, and semi-quantitative detect glucose in the field. © 2025, The Authors. All rights reserved.

关键词： Perovskite

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Measures and Suggestions for Ecological Restoration of Highway Slopes in the Context of Green Highway in China 3

Measures and Suggestions for Ecological Restoration of Highw...

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3rd International Conference on Green Energy, Environment and Sustainable Development, GEESD 2022

作者： Li, Qili Zhu, Gaoru Liu, Jie Laboratory of Transport Pollution Control and Monitoring Technology Transport Planning and Research Institute Ministry of Transport Beijing100028 China

ISBN: (纸本)9781643683126

To practice green development in highway construction and improve the theory slope ecological restoration, this paper analyzes the connotation characteristics and idea of green highway, and puts forward the needs and management suggestions of green highway idea for slope ecological restoration. The results show that: (1) the ecological restoration of highway slope should adapt to the needs of green highway development in the new period from five aspects: optimizing design, intensive using of resources, adopting different repair techniques, considering the life cycle costs and building beautiful highways. (2) The high-quality development of ecological restoration of highway slopes can promote from four types of initiatives: encouragement, compulsiveness, recommendation and guidance. The research results provide guidance and strategy for develops slope ecological restoration, which is conducive to promoting the transportation industry to practice green development and ecological civilization strategy. © 2022 The authors and IOS Press.

关键词： Restoration

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Study on the Technical and Policy Pathway for Low-Carbon Development of the Water transportation in Sichuan Province 10th

Study on the Technical and Policy Pathway for Low-Carbon Dev...

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10th PIANC Smart Rivers Conference, Smart Rivers 2022

作者： Zhang, Yonglin Zheng, Chaohui Li, Yue Zhang, Liguo Cheng, Jinxiang Li, Mingjun Transport Planning and Research Institute Ministry of Transport Beijing China Laboratory of Transport Pollution Control and Monitoring Technology Beijing China

ISBN: (纸本)9789811961373

transport, one of the key sectors for the implementation of China’s carbon peak and carbon neutrality goals, boasts a water transportation crucial to China’s integrated transport infrastructure, which will face a rising demand with the continuous optimization of the transport system. Located upstream of the golden waterway of the Yangtze River, Sichuan province is one of the key regions for inland waterway transportation. In the context of the ‘dual carbon’ goals, the study proposes a conceptual framework for the low-carbon development pathway of water transport by analyzing the technical roadmap and policy recommendations for the Sichuan Province, which found that Sichuan can rely upon energy efficiency and energy substitution on the technical front, while upon the synergy of "government guidance + enterprise responsibility + market support + partnership". While focusing on slowing the growth of CO2 emissions and improving energy efficiency with LNG as the main transition fuel in the near term, Sichuan should curb the total emissions and strategize around carbon-free solutions including electricity and hydrogen. © 2023, The Author(s).

关键词： Energy efficiency

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Unveiling the overlooked silent threat: High-throughput suspect screening of antibiotics and multidimensional heterogeneity in aquatic ecosystems of megacity

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Journal of Hazardous Materials 2025年 493卷 138193页

作者： Guo, Tianrong Yue, Qingnan Hou, Yu Chen, Yi Yu, Dong Yang, Geng Yu, Chenglong Zeng, Yuping Feng, Yanqi Pu, Shengyan State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of Technology Chengdu610059 China Key Laboratory of Monitoring and Assessment on Novel Food Raw Materials State Administration for Market Regulation Chengdu Institute of Food Inspection Chengdu611130 China State Key Laboratory of Collaborative Control and Joint Remediation of Soil and Water Pollution for Environmental Protection College of Ecology and Environment Chengdu University of Technology Chengdu610059 China School of Materials and Environmental Engineering Chengdu Technological University Chengdu611730 China Key Laboratory of Chemical Metrology and Applications on Nutrition and Health State Administration for Market Regulation Chengdu Institute of Food Inspection Chengdu611130 China

The environmental and health impacts of antibiotics (ABx) have garnered global attention. However, the issue of ABx contamination in aquatic ecosystems of densely populated megacities remains largely overlooked. Significant research gaps persist, particularly in understanding the full-chain pollution characteristics that span from urban aquatic environments to edible aquatic organisms, due in part to the lack of systematic monitoring data to support comprehensive assessments. To address this gap, this study conducts the first comprehensive screening of ABx in the aquatic ecosystems of a megacity, offering quantitative evaluations of ABx complexity and multidimensional heterogeneity. Over a one-year period, 406 samples were collected from four rivers and three lakes, and large-scale analyses identified 37 ABx compounds, with the overall detection rate of 30.05 %, with Sulfonamides (SAs), Quinolones (QNs), and Macrolides (MLs) being the most prevalent. Surface water samples contained the greatest number of ABx types, while amphibians exhibited the highest detection rate and concentrations. A pronounced increase in detections during the dry season (spring and winter) highlighted substantial spatio-temporal variation. Source-sink analysis revealed hospital effluents and wastewater treatment plants as primary pollution sources. Among the detected compounds, Nalidixic acid (NCA), Sulfamethazine (SMTZ), Flumequine (FQ), and Tylosin (TLS) posed the most significant ecological risks, with NCA identified as a priority for targeted control. This study establishes a novel framework for the high-throughput suspect screening, occurrence pattern analysis, and risk assessment of ABx in megacities worldwide. © 2025 Elsevier B.V.

关键词： Risk assessment

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