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Airborne fungal communities are more susceptible to anthropogenic activities than bacteria

Journal of Environmental Sciences 2025年第3期149卷 564-573页

作者： Yuanyuan Pan Zhiwei Zuo Xueyun Huang Renguo Zhu School of Water Resources&Environmental Engineering East China University of TechnologyNanchang 330013China Jiangxi Province Key Laboratory of the Causes and Control of Atmospheric Pollution East China University of TechnologyNanchang 330013China

Airborne microorganisms(AM)have significant environmental and health *** studies have been conducted to investigate the factors influencing the composition and diversity of ***,the knowledge of AM with anthropogenic activities has not reach a *** this study,we took advantage of the dramatic decline of outdoor anthropogenic activities resulting from COVID-19 lockdown to reveal their *** collected airborne particulate matter before and during the lockdown period in two *** results showed that it was fungal diversity and communities but not bacteria obviously different between pre-lockdownand lockdown samples,suggesting that airborne fungiwere more susceptible to anthropogenic activities than ***,after the implementation of lockdown,the co-occurrence networks of both bacterial and fungal community became more complex,whichmight be due to the variation of microbial ***,Mantel test and correlation analysis showed that air pollutants also partly contributed to microbial *** fungal community was more affected by air pollutants than bacterial ***,some human pathogens like Nigrospora and Arthrinium were negatively correlated with air ***,our study highlighted the more impacts of anthropogenic activities on airborne fungal community than bacterial community and advanced the understanding of associations between anthropogenic activities and AM.

关键词： COVID-19 lockdown Anthropogenic activities Airborne microorganisms Response Air pollutants

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Synthesis of Ce/BiFeO_(3)composites and activation of persulfate for pharmaceutical wastewater degradation

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Journal of Rare Earths 2025年第3期43卷 462-469,I0002页

作者： Yanting Zuo Shi Cheng Ziwen Guo Haolin Liu Huaicheng Zhang Ji Wu Ziwu Fan Wentao Li Aimin Li Key Laboratory of Taihu Basin Water Resources Management Ministry of Water ResourcesNanjing Hydraulic Research InstituteNanjing 210029China School of Urban Construction Changzhou UniversityChangzhou 213164China School of Resources and Environmental Engineering Jiangsu University of TechnologyChangzhou 213001China State Key Laboratory of Pollution Control and Resources Reuse School of the EnvironmentNanjing UniversityNanjing 210023China School of Environment and Safety Engineering Nanjing Polytechnic InstituteNanjing 210048China

Sulfamethoxazole(SMZ)is a prevalent and recalcitrant micropollutant in water,posing a significant threat to both aquatic organisms and human ***,investigating the removal of SMZ is of critical *** order to investigate the effect of rare earth metal doping on the performance of activated persulfate oxidative degradation of SMZ,BiFeO_(3)with different Ce doping amounts was successfully prepared by a hydrothermal ***,it was characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),scanning transmission electro n microscopy(STEM)and Brunauer-Emmett-Teller(BET)*** performance of porous Ce/BiFeO_(3)in the catalytic activation of persulfate(PMS)for the degradation of SMZ in water was investigated using SMZ solution as a simulated *** impact of Ce doping rate,catalyst dosage,temperature variations,common anions,natural organic matter,and PMS concentration on SMZ removal was systematically *** characterization results show that the octahedral rhombic structure of Ce can be observed on the surface of this doped catalyst,and Ce doping does not change the crystalline shape of Ce/BiFeO_(3).The specific surface area of the doped catalyst increases,accompanied by an enlargement of pore size,thereby enhancing the catalyst's adsorption capacity and resistance to contamination by *** the optimal conditions of 25℃,SMZ concentration of 20 mg/L,0.8 g/L PMS and 0.3 g/L 0.05Ce/BiFeO_(3)catalyst,the removal rate of SMZ reaches approximately 95%within35 min of reaction *** after five cycles of reuse,the degradation rate of SMZ remains above 88%,demonstrating the catalyst's good stability and *** experiments show that SO_(4)^(·-),·OH,1O_(2)and O_(2)^(·-)are involved in the catalytic degradation process,with 1O_(2)playing a dominant role.

关键词： Ce/BiFeO_(3) Persulfate Sulfamethoxazole Sulfate radicals Rare earths

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[A review and research prospects on the application of the XCMS mass-spectrometry data-processing software in the environmental science field]

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Se pu = Chinese journal of chromatography 2025年第6期43卷 585-593页

作者： Cheng Yang Ao Zhang Zhan-Qi Gao Guan-Yong Su Jiangsu Province Key Laboratory of Chemical Pollution Control and Resources Reuse，School of Environmental and Biological Engineering，Nanjing University of Science and Technology，Nanjing 210094，China. Key Laboratory of Environment Monitoring and Analysis for Organic Pollutants in Surface Water，Ministry of Ecology and Environment，Jiangsu Province Environmental Monitoring Center，Nanjing 210019，China.

Biological and environmental samples are complex and contain a highly diverse range of compounds. Analyzing these samples by chromatography-high-resolution mass spectrometry generates a substantial volume of mass-spectrometry data that are composed of mass-to-charge-ratio （）， retention-time （RT）， and peak-intensity information that require considerable time and energy to process. Consequently， employing software to process mass-spectrometry data for identification and analysis purposes is imperative. Among the many mass-spectrometry data-processing options， XCMS （various forms （X） of chromatography mass spectrometry）， which is highly efficient， precise， and freely accessible software for processing mass-spectrometry data， is broadly used in the environmental science field. This study aimed to explore the use of XCMS in environmental science applications by comprehensively reviewing the workflow， underlying principles， and parameter-optimization measures of XCMS. The workflow mainly includes importing， processing， and exporting data. Importing data requires the use of format conversion tools， such as MSConvert， which converts data generated by various instruments into a format acceptable by XCMS， while data processing includes peak detection， alignment， and filling. The various XCMS functions are mainly realized via its built-in algorithms， with the Matched Filter， CentWave， Obiwarp， and Peak Density algorithms most commonly used. The first two algorithms implement the peak-detection function， while the latter two implement the peak-alignment function. XCMS identifies compound peaks from mass-spectrometry data during peak-detection； it first filters for noise and corrects the baseline. An algorithm then detects peaks based on their shapes and intensities. XCMS can also de-emphasize and de-distort to filter out interfering information in each peak signal. The CentWave algorithm is particularly effective for processing high-resolution mass-spectrometry data by improvin

关键词： XCMS environmental science non-targeted screening unknown contaminants

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The photo-based treatment technology simultaneously removes resistant bacteria and resistant genes from wastewater

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Journal of Environmental Sciences 2025年第2期148卷 243-262页

作者： Zicong Guo Xiang Tang Wenjun Wang Zhangxiong Luo Yuxi Zeng Nan Zhou Zhigang Yu Dongbo Wang Biao Song Chengyun Zhou Weiping Xiong College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control(Ministry of Education) Hunan UniversityChangsha 410082China Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation College of Resources and EnvironmentFujian Agriculture and Forestry UniversityFuzhou 350002China School of Resources and Environment Hunan University of Technology and BusinessChangsha 410205China Australian Centre for Water and Environmental Biotechnology The University of QueenslandBrisbaneQLD 4072Australia

Because of the recent widespread usage of antibiotics,the acquisition and dissemination of antibiotic-resistance genes(ARGs)were prevalent in the majority of ***,the biological wastewater treatment processes used in wastewater treatment plants have a limited efficiencies of antibiotics resistant bacteria(ARB)disinfection and ARGs degradation and even promote the proliferation of ***,ARB and ARGs in effluent pose potential risks if they are not further *** oxidation is considered a promising disinfection technology,where the photocatalytic process generates many free radicals that enhance the interaction between light and deoxyribonucleic acid(DNA)for ARB elimination and subsequent degradation of *** reviewaims to illustrate the progress of photocatalytic oxidation technology for removing antibiotics resistant(AR)from wastewater in recent *** discuss the sources and transfer of ARGs in *** overall removal efficiencies of ultraviolet radiation(UV)/chlorination,UV/ozone,UV/H_(2)O_(2),and UV/sulfate-radical based system for ARB and ARGs,as well as the experimental parameters and removal mechanisms,are systematically *** contribution of photocatalytic materials based on TiO_(2) and g-C_(3)N_(4) to the inactivation of ARB and degradation of ARGs is highlighted,producingmany free radicals to attack ARB and ARGs while effectively limiting the horizontal gene transfer(HGT)in ***,based on the reviewed studies,future research directions are proposed to realize specific photocatalytic oxidation technology applications and overcome current challenges.

关键词： Antibiotics resistant genes Antibiotics resistant bacteria Photocatalytic oxidation

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Comparison of freshwater microbial communities in water and microplastics surfaces:insights from Dongting Lake,China

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Journal of Oceanology and Limnology 2025年第2期43卷 545-558页

作者： Yiming QIU Xiaofeng WEN Ziyi XIANG Zixiang CHEN Ziyi QIU Meinan PENG Shihan ZHONG Jiali HUANG Weicheng ZHOU Lingshi YIN School of Hydraulic and Environmental Engineering Changsha University of Science&TechnologyChangsha 410114China Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province Changsha 410114China Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province Changsha 410114China College of Water Resources&Civil Engineering Hunan Agricultural UniversityChangsha 410128China School of Chemistry and Environmental Science Xiangnan UniversityChenzhou 423000China

In recent years,microplastics(MPs)in freshwater lake have been receiving increasing attention;however,the microbial communities on the surface of MPs have not been well *** investigate the potential risk posed by MPs to the lake ecosystem and its surface microbial community structure,MPs samples were collected in September 2023 in the freshwater Dongting Lake,hunan,China,at five sites,and the differences in bacterial species community composition and structure between MPs and water samples were *** show that MPs(13.71±3.32 items/L)in the samples were mostly black in color,fiber in shape,and PES in composition,and those<0.5 mm in size are *** bacterial composition in water was different from that on *** phylum level,Proteobacteria,Actinobacteria,Cyanobacteria,and Bacteroidetes were dominated in relative abundance in both water and *** was more abundant in MPs than in *** relative abundance of Bacteroidota and Actinobacteriota was significantly lower in MPs than in *** genus level,Pantoea and Pseudomonas were potentially pathogenic genera in MPs *** presence of Cyanobacteria and pathogenic bacteria is undoubtedly a potential risk to the deterioration of the water *** study revealed the difference in the distribution of bacterial community in water and MPs in Dongting Lake and provided new perspectives to further understanding of MPs pollution in freshwater lakes.

关键词： freshwater microplastic(MP) microbial community ecological risk

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Efficient removal and stable immobilization of Cs+ by silica-based ammonium phosphomolybdate and geopolymer

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Chemical Engineering Journal 2025年 503卷

作者： Dang, Jintao Wang, Jinsong Wang, Xinyi Liu, Yingjiu Liu, Hongjuan School of Nuclear Science and Technology University of South China Hengyang421001 China Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology University of South China Hengyang421001 China

137Cs, as the main heat-generating nuclide in radioactive wastewater, has a long half-life, strong radioactivity and toxicity. Thus, Cs+ adsorption–immobilization from radioactive wastewater is essential for human health and environmental safety. In this study, the pore structure of hollow mesoporous silica spheres (HMSS) was firstly adjusted by the use different amount of pore-expanding agents, and then ammonium phosphomolybdate (AMP) was loaded onto HMSS to prepare a novel adsorbent (AMP-HMSS) for cesium. Taking advantage of the mesoporous and hollow structure and AMP loading, AMP-HMSS showed outstanding adsorption ability for Cs+ with maximum adsorption capacity of 179.21 mg/g and high adsorption selectivity. AMP-HMSS showed much better adsorption performance than HMSS in the strong acidic solution (up to 1 mol/L HCl). The governing removal mechanism of AMP-HMSS for Cs+ was exchange between Cs+ and NH4+ along with participation of hydroxyl group. Moreover, spent adsorbents (AMP-HMSS/4-Cs) was immobilized in fly ash-based geopolymer. The geopolymer displayed good anti-leaching performance even in the salty environment, which indicated that Cs+ could be stably immobilized in the geopolymer. After calcination of 900 ℃ for 8 h, new phases zeolite and nepheline was generated in the geopolymer and subsequently enhanced its compressive strength. © 2024 Elsevier B.V.

关键词： Mesopores

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In-situ synthesis of Z-scheme CeO_(2)@WO_(3) heterojunction with aromatic rings as electron medium for efficient photocatalytic degradation of perfluorobutane sulfonate

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Journal of Rare Earths 2025年第3期43卷 470-479,I0002页

作者： Shihai Cao Haocheng Yang Cheng Cheng Jinheng Dai Shuaishuai Lu Yao Lu College of Environmental Engineering Nanjing Institute of TechnologyNanjing211167China Jiangsu Environmental Engineering Technology Co. Ltd.Nanjing210019China Key Laboratory of Jjiangsu Province for Chemical Pollution Control and Resources Reuse School of Environmental and Biological EngineeringNanjing University of Science and TechnologyNanjing210094China School of Environment and Safety Engineering School of Emergency ManagementInstitute of Environment and EcologyJiangsu UniversityZhenjiang 212013China Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment Suzhou University of Science and TechnologySuzhou215009China

Photocatalytic technology has been proven to be a simple and effective method for degrading recalcitrant organic *** this study,a series of Z-scheme heterojunction nanocomposites composed of CeO_(2)and terephthalic acid-modified WO_(3) was prepared and further used as photocatalysts for perfluorobutane sulfonate(PFBS)*** this design,terephthalic acid was used as an electron recombination center and heterojunction mediator,which effectively enhances the migration ability of electron-hole pairs and the physicochemical stability of the *** addition,in situ synthesis of CeO_(2)onto the WO_(3) surface by the coordinate bond between terephthalic acid and Ce ions can avoid CeO_(2)*** a result,the CeO_(2)@WO_(3) photocatalyst exhibits excellent PFBS degradation ability(94%for CeO_(2)@WO_(3) vs.19%for CeO_(2)).After the fifth cyclic degradation experiment,the CeO_(2)@WO_(3) photocatalyst still maintains stable degradation ***,the reaction mechanism of the PFBS in CeO_(2)@WO_(3) photocatalytic process was analyzed by free radical trapping experiment and liquid chromatography tandem mass spectrometry(LC-MS)*** study provides new insights for constructing Z-scheme heterojunction and demonstrates that CeO_(2)@WO_(3) photocatalysts possess a promising prospect for degrading PFBS pollutants.

关键词： CeO_(2) WO_(3) Photocatalytic Z-Scheme heterojunction Perfluorobutane sulfonate(PFBS) Rare earths

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Investigation into enhanced performance of toluene and Hg^(0) stimulative abatement over Cr-Mn oxides co-modified columnar activated coke

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Journal of Environmental Sciences 2025年第2期148卷 88-106页

作者： Jiajie Wang Jie Liu Lei Gao Dong Xie Caiting Li Liping Xiang Huiyu Xiong Jiaqi Xie Tianren Zhang Yueguo Pan School of Resources Environment and Safety Engineering University of South ChinaHengyang 421001China National&Local Joint Engineering Research Center for Airborne Pollutants Control and Radioactivity Protection in Buildings Hengyang 421001China Key Laboratory of Prefabricated Building Energy Saving Technology of Hunan Province Hengyang 421001China College of Environmental Science and Engineering Hunan UniversityChangsha 410082China

In this study,a string of Cr-Mnco-modified activated coke catalysts(XCryMn1-y/AC)were prepared to investigate toluene and Hg^(0) removal *** characterizations including XRD,TEM,SEM,in situ DRIFTS,BET,XPS and H_(2)-TPR showed that 4%Cr0.5Mn0.5/AC had excellent physicochemical properties and exhibited the best toluene and Hg^(0) removal efficiency at 200℃.By varying the experimental gas components and conditions,it was found that too large weight hourly space velocity would reduce the removal efficiency of toluene and Hg^(0).Although O_(2) promoted the abatement of toluene and Hg^(0),the inhibitory role of H_(2)O and SO_(2) offset the promoting effect of O_(2) to some *** significantly inhibited Hg^(0) removal,resulting from that toluene was present at concentrations orders of magnitude greater than mercury’s or the catalyst was more prone to adsorb toluene,while Hg^(0) almost exerted non-existent influence on toluene *** mechanistic analysis showed that the forms of toluene and Hg^(0) removal included both adsorption and oxidation,where the high-valent metal cations and oxygen vacancy clusters promoted the redox cycle of Cr^(3+)+Mn^(3+)/Mn^(4+)+Cr^(6+)+Mn^(2+),which facilitated the conversion and replenishment of reactive oxygen species in the oxidation process,and even the CrMn_(1.5)O_(4) spinel structure could provide a larger catalytic interface,thus enhancing the adsorption/oxidation of toluene and Hg^(0).Therefore,its excellent physicochemical properties make it a costeffective potential industrial catalyst with outstanding synergistic toluene and Hg^(0) removal performance and preeminent resistance to H_(2)O and SO_(2).

关键词： Toluene Element mercury Cr-Mn oxides Activated coke

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Coupled electron delocalization and multi-dimensional porosity engineering in TiO2 hollow spheres-embedded carbon nanofiber aerogels for efficient photocatalytic aniline degradation

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Chemical Engineering Journal 2025年 515卷

作者： Qi, Lanyue Zhang, Hao Yang, Yue Qi, Junwen Zhou, Yujun Zhu, Zhigao Li, Jiansheng Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse School of Environmental and Biological Engineering Nanjing University of Science & Technology Nanjing210094 China

The precise synergy of electron delocalization engineering and multi-dimensional porosity processing is a promising strategy for photocatalytic water remediation. Herein, a novel mesoporous TiO2 hollow spheres-embedded carbon nanofiber aerogels (THS-CNFAs) was constructed by anchoring THS into the three-dimensional (3D) porous nanofiber aerogels skeleton using electrospinning and freeze-drying molding followed by pyrolysis. Owing to the interconnected pore network of CNFAs and the high specific surface area of THS, the adsorption efficiency (67%) of aniline by THS-CNFAs was 3.4 and 1.5 folds greater than that of pure THS and CNFAs, respectively. The further DFT calculations confirmed that the existence of Ti-N bond introduces impurity energy levels, causing electron density redistribution and Fermi level shifts. Moreover, the nitrogen-doping induces the generation of oxygen vacancies (O-Vs), which promotes the separation of charge carriers and reduces the adsorption energy of aniline molecules on THS-CNFAs. Thus, the synergistic effects of N-doping and O-Vs greatly facilitated charge transfer to generate •OH, O2•–, and 1O2, resulting in the efficient oxidation of aniline (96%) under visible light. This work provides new insights into the development of photocatalytic nanofiber-constructed aerogels for wastewater treatment. © 2025 Elsevier B.V.

关键词： Carbon nanofibers

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Weaning performance prediction in lactating sows using machine learning, for precision nutrition and intelligent feeding

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Animal Nutrition 2025年 21卷 222-233页

作者： Su, Jiayi Kong, Xiangfeng Wang, Wenliang Xie, Qian Wang, Chengming Tan, Bie Wang, Jing Key Laboratory of Hunan Province for the Products Quality Regulation of Livestock and Poultry College of Animal Science and Technology Hunan Agricultural University Changsha 410128 China Laboratory of Animal Nutritional Physiology and Metabolic Process Key Laboratory of Agro-Ecological Processes in Subtropical Region National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production Institute of Subtropical Agriculture Chinese Academy of Sciences Changsha 410125 China Yuelushan Laboratory Changsha 410128 China

Traditional feeding strategy during lactation can result in nutrient deficiencies and negatively impact long-term productivity, compromising both the sustainability and profitability of the swine industry. Precision feeding, supported by decision-making systems built on advanced predictive models, offers a promising solution to address these challenges. This study aimed to develop prediction models for weaning performance, focusing on key indicators such as weaned litter weight (WLW), weaned litter size (WLS), dry matter in milk (DMm), and nitrogen in milk (Nm). The models integrate farm management practices and feed nutrient composition, providing a data-driven framework for optimizing performance. A total of 10,089 observations were collected from 17 trial pig farms across eight provinces in China. Eleven statistical and machine learning (ML) regression algorithms were employed, incorporating stratified sampling and the recursive feature elimination method for feature selection. The findings demonstrated that the ensemble learning models, specifically random forest and gradient boosting decision tree regression, delivered the best overall performance, with a coefficient of determination (R²) ranging from 0.40 to 0.80 and a mean absolute error (MAE) between 0.11 and 4.36. The shapley additive explanations (SHAP) heatmap used for feature importance analysis revealed that, although the key predictors of weaning performance varied across models, this study newly identified lactation duration, birth litter weight, parity, and backfat thickness on the 7th day of lactation (L.d7BF) as consistently important features across different models. The discrepancies between correlation analysis and feature importance suggest the presence of non-linear relationships, feature interactions, and multicollinearity within the dataset. This study presents a novel framework that provides valuable insights into the factors influencing weaning performance under diverse manageme

关键词： Feature selection Lactating sow Machine learning Precision feeding Weaning performance prediction

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