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SSRN 2022年

作者： Xiao, Yangning Xiao, Hongwei Sun, Qibin Zhao, Bei Xiao, Huayun School of Environmental Science and Engineering Shanghai Jiaotong University Shanghai200240 China Jiangxi Province Key Laboratory of the Causes and Control of Atmospheric Pollution Nanchang330013 China School of Water Resources and Environmental Engineering East China University of Technology Nanchang330013 China School of Atmospheric Sciences Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies Institute of Earth Climate and Environment System Sun Yat-sen University Zhuhai519082 China Beijing100083 China

The Tibetan Plateau is the third pole of the world, regulating the climate of the northern hemisphere. Previous studies suggested that the atmospheric aerosols over Tibetan Plateau were obviously influenced by the BB transported from South and Southeast Asia. Field burning is also an important form of BB in Southeast Asian countries. Every spring there is serious air pollution caused by field burning. However, there are still scientific gaps in the contribution of field burning to surrounding regional aerosols, especially on the Tibetan Plateau. To further identify the influence of field burning on the aerosols over the Southeastern Tibetan Plateau, we collected the PM 2.5 samples and then analyzed the concentrations of TC and TN and their isotope during the March to June on Southeastern Tibetan Plateau. The δ 13 C and δ 15 N results showed that there was no significant difference (p > 0.05) between the field burning and the non-field burning periods. Furthermore, both δ 13 C and δ 15 N values were similar to the BB value, indicated the TC and TN were primarily derived from BB whether field burning or non-field burning periods. The concentrations of TC, and TN (6.5 ± 2.9 µg m -3 , and 1.2 ± 0.4 µg m -3 respectively) during the field burning period (March to April) were significantly higher than during the non-field burning period (4.1 ± 1.7 µg m -3 , p= 0.014;and 0.7 ± 0.3 µg m -3 , p= 0.013, respectively). The active fires data, the smoke surface concentrations, backward trajectory, further indicated that the BB emissions from Southeast Asia during field burning period higher than during non-field burning period. This suggests that high BB emissions had significantly enhanced atmospheric aerosols concentrations and chemical composition in Southeastern Tibetan Plateau during the field burning period. © 2022, The Authors. All rights reserved.

关键词： Isotopes

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Novel Ag-Modified Vanadate Nanosheets for Determination of Small Organic Molecules with Laser Desorption Ionization Mass Spectrometry

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SSRN 2023年

作者： Zhu, Yanli Wang, Jikai Zeng, Pengfei Fu, Chengxiao Chen, Danjun Jiang, Yuehua Sun, Yiyang Xie, Zhulan Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study Institute of Pharmacy & Pharmacology Hengyang Medical School University of South China Hunan Hengyang421001 China School of Resources and Environment Hunan University of Technology and Business Hunan Changsha410205 China State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical Sciences University of Macau Taipa China The First Affiliated Hospital Department of Pharmacy Hengyang Clinical Pharmacology Research Center Hengyang Medical School University of South China Hunan Hengyang421001 China Department for Animal Husbandry & Aquaculture Products Quality Control Hengyang Animal Husbandry and Aquaculture Affairs Center Hunan Hengyang421001 China

Laser desorption ionization mass spectrometry (LDI-MS) aroused intensive concerns for the merits of label-free and high-throughput analysis. Here, we designed a silver nanoparticles (AgNP)-modified indium vanadate nanosheets with doping samarium (AgNP@InVO4:Sm) nanosheets. The developed AgNP@InVO4:Sm nanosheets (AIVON) were synthesized based on the microemulsion-mediated solvothermal method and ultraviolet-assisted in situ formation of AgNP, then for the first time applied as a matrix in LDI-MS analysis. With the advantages including enhanced MS signal, little matrix-related background, high reproducibility, and good salt tolerance, AIVON exhibited much better prospect than non-modified indium vanadate nanosheets with doping samarium (IVON) and traditional organic matrix, thus allowing sensitive MS detection for a wide range of low-molecular-weight (LMW) molecules. Moreover, by coupling with headspace sampling thin-film microextraction (TFME), a kind of representative pollutant chlorophenols were identified and quantified via AIVON-assisted LDI-MS in environmental and biological samples. Volatile LMW pollutants could be preconcentrated after TFME, hence a sensitive and rapid assay with negligible sample matrix effect was realized by using AIVON-assisted LDI-MS. It is anticipated that this novel nano-matrix AIVON and the proposed TFME coupling detection strategy were of competitive merits for LDI-MS analysis in the fields of environment, biomedicine, and agriculture. © 2023, The Authors. All rights reserved.

关键词： Nanosheets

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Enhanced Field Burning Derived Aerosols Across the Southeastern Tibetan Plateau in Spring

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SSRN 2022年

作者： Xiao, Yang-Ning Xiao, Hong-Wei Sun, Qi-Bin Zhao, Bei Xiao, Hua-Yun School of Environmental Science and Engineering Shanghai Jiaotong University Shanghai200240 China Jiangxi Province Key Laboratory of the Causes and Control of Atmospheric Pollution Nanchang330013 China School of Water Resources and Environmental Engineering East China University of Technology Nanchang330013 China School of Atmospheric Sciences Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies Institute of Earth Climate and Environment System Sun Yat-sen University Zhuhai519082 China Beijing100083 China

The Tibetan Plateau is the third pole of the world, regulating the climate of the northern hemisphere. Previous studies suggested that the atmospheric aerosols over Tibetan Plateau were obviously influenced by the BB transported from South and Southeast Asia. In fact, field burning is also an important form of BB in Southeast Asian countries. Every spring there is serious air pollution caused by field burning. However, there are still scientific gaps in the contribution of field burning to surrounding regional aerosols, especially on the Tibetan Plateau. To further identify the influence of field burning on the aerosols over the Southeastern Tibetan Plateau, we collected the PM2.5 samples and then analyzed the concentrations of TC and TN and their isotope during the March to June on Southeastern Tibetan Plateau. The δ13C and δ15N results showed that there was no significant difference (p > 0.05) between the field burning and the non-field burning periods. Furthermore, both δ13C and δ15N values were similar to the BB value, indicated the TC and TN were primarily derived from BB whether field burning or non-field burning periods. The concentrations of TC, and TN (6.5 ± 2.9 µg m-3, and 1.2 ± 0.4 µg m-3 respectively) during the field burning period (March to April) were significantly higher than during the non-field burning period (4.1 ± 1.7 µg m-3, p= 0.014;and 0.7 ± 0.3 µg m-3, p= 0.013, respectively). The active fires data, the smoke surface concentrations, backward trajectory, further indicated that the BB emissions from Southeast Asia during field burning period higher than during non-field burning period. This suggests that high BB emissions had significantly enhanced atmospheric aerosols concentrations and chemical composition in Southeastern Tibetan Plateau during the field burning period, which may further affect the plateau biodiversity and ecosystem. © 2022, The Authors. All rights reserved.

关键词： Nitrogen

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Wetland degradation monitoring using time series of multi-sensor data: A case study of Yangtze River

Wetland degradation monitoring using time series of multi-se...

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International Conference on Geoinformatics

作者： Jinquan Ai Chunmei Niu Jiangtao Zhu Huangjing Li Lijuan Chen Faculty of Geomatics East China University of Technology Nanchang China Key Laboratory of Mine Environmental Monitoring and Improving around Poyang Lake Ministry of Natural Resources East China University of Technology Nanchang China Key Laboratory of the Causes and Control of Atmospheric Pollution of Jiangxi Province East China University of Technology Nanchang China

ISBN: (纸本)9781665420754

Effective monitoring and assessment of land degradation are essential for the land manager and decision-makers to make optimal land management decisions. This work aims to present a methodology to monitor land degradation in the Chongming Dongtan wetland, where wetland degradation and plant invasions have been observed in the past few decades. Time series of multi-sensor imagery from 2013 to 2016 were selected to identify the rate and status of land degradation due to reclamation based on land cover classification and change detection techniques. Results showed that the overall accuracy of each image classification was higher than 80% and Kappa statistics of agreement more than 0.74. The distribution maps of land degradation in each period were generated respectively based on the classification and change detection results. Coastal wetlands decline, biodiversity loss and wetland hydrological regime change are the main degraded types. Although climate change plays an important role, human activities especially via large-scale reclamations are more directly impacted by land degradation in the study area.

关键词： Degradation pollution Time series analysis Sea measurements Sensors Rivers Biodiversity

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Phanerochaete chrysosporium reduces heavy metal uptake in rice by affecting rhizosphere microbes and root metabolism

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Ecotoxicology and environmental safety 2025年 299卷 118403页

作者： Renyan Duan Yu Zhang Qian Dai Li Yang Hui Yang Fumin Meng Wei Hu Ping Zhang College of Agriculture and Biotechnology Hunan University of Humanities Science and Technology Loudi Hunan 417000 China Key Laboratory of Development Utilization Quality and Safety Control of Characteristic Agricultural Resources in Central Hunan Province Loudi Hunan 417000 China. Electronic address: renyanduan@***. College of Agriculture and Biotechnology Hunan University of Humanities Science and Technology Loudi Hunan 417000 China.

The addition of functional microorganisms is a common approach for remediating farmland contaminated with heavy metals, but the mechanisms underlying their reduction of crop absorption of these metals require further investigation. Here, the effect of adding Phanerochaete chrysosporium (PC) on the accumulation of heavy metals, including antimony (Sb), arsenic (As), chromium (Cr), lead (Pb) and zinc (Zn), in rice was investigated, and the possible mechanisms behind these effects were explored. The results revealed that PC treatment significantly decreased the concentrations of Sb, As, Cr, Pb and Zn in rice grains, while increasing the abundance of four beneficial bacterial genera, including Mycobacterium, Desulfovirga, Methylosarcina, and Ferruginibacter. Ultra-performance liquid chromatography-mass spectrometry (UPLC-MS) analysis showed that adding PC significantly altered the concentrations of root metabolites, including organic acids, choline, and amino acids. The affected metabolic pathways were mainly concentrated in four pathways: (1) histidine metabolism, (2) pyrimidine metabolism, (3) alanine, aspartate, and glutamate metabolism, and (4) glycine, serine, and threonine metabolism. These findings suggest that PC reduces the uptake of heavy metals in rice by altering root metabolism and the composition of the rhizosphere microbiome, providing valuable insights for the remediation of farmland contaminated with heavy metals.

关键词： Farmland restoration Heavy metal Rhizosphere microbiota Root metabolism

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Validation and Application of Diffusive Gradient in Thin-Film (Dgt) Equipped Novel Cyclodextrin Polymer Gels for Monitoring Endocrine Disrupting Chemicals (Edcs) and Environmental Risk Assessment in the Taihu Lake Basin

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SSRN 2021年

作者： Zhu, Xingqi Jiang, Lu Ji, Xiaowen Zhang, Delin Xu, Guizhou Wu, Daise Li, Aimin Xie, Xianchuan State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing China Nanjing University China Key Laboratory of Poyang Lake Environment and Resource Utilization Ministry of Education School of Resources Environmental & Chemical Engineering Nanchang University Nanchang330031 China Jiangxi Nanxin Environmental Protection Technology Co. LTD Jiangxi Province Jiujiang City330300 China

Taihu Lake is the most important drinking water source of the major cities in the Yangtze River Delta. The pollution of endocrine disruptors (EDCs)in Taihu Lake has been increasing recently, the accurate determination is an important guide for predicting its health risks and developing appropriate controls. Monitoring organic pollutants in water using the diffusive gradient in thin film technique (DGT) has attracted much attention due to more accuracy and convenience than the grab sampling methods. In this study, a novel cyclodextrin polymer (CDP) synthesized by the simple and green method in water was taken as an adsorbent for the binding gel. Four endocrine-disrupting chemicals (EDCs), bisphenol A (BPA), 17α-ethinylestradiol (EE2), 17β-estradiol (E2), and estriol (E3), were taken as models to determine the diffusion coefficients (4.68×10-6, 3.38×10-6, 3.34×10-6 and 4.31×10-6 cm2/s) and to test the performance of DGT, such as adsorption capacity and deployment time (1-5 day). The assembled CDP-DGT was adopted to determine four EDCs in a simulated water environment (3-9 of pH, 0.001-0.5M of ionic strength (IS), and dissolved organic matter (DOM) of 0-20mg/L). The ability of CDP-DGT sampling was verified in the Jiuxiang River and was carried out for a large-scale field application of in situ sampling EDCs in Taihu Lake basin. The results show that the total EDCs concentration range and the estradiol equivalent concentrations (EEQ) in Taihu Lake and its main rivers are 2.78 ng/L to 11.08 ng/L and 2.62 ng/L to 10.91 ng/L, respectively. The risk quotients (RQs) of all sampling sites in the region were greater than 1, indicating that EDCs pose a serious threat to aquatic organisms in the area. Therefore, the monitoring of EDCs in the Taihu Lake basin should be further strengthened. © 2021, The Authors. All rights reserved.

关键词： Risk assessment

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Evolution and legacy of East Asian aurochs

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Science Bulletin 2024年第21期69卷 3425-3433页

作者： Jiawen Hou Xiwen Guan Xiaoting Xia Yang Lyu Xin Liu Yuri Mazei Ping Xie Fengqin Chang Xiaonan Zhang Jialei Chen Xinyi Li Fengwei Zhang Liangliang Jin Xiaoyu Luo Mikkel-Holger SSinding Xin Sun Alessandro Achilli Nicola Rambaldi Migliore Dongju Zhang Johannes ALenstra Jianlin Han Qiaomei Fu Xinyi Liu Xiaoming Zhang Ningbo Chen Chuzhao Lei Hucai Zhang Key Laboratory of Animal Genetics Breeding and Reproduction of Shaanxi Province College of Animal Science and TechnologyNorthwest A&F UniversityYangling 712100China Key Laboratory of Genetic Evolution&Animal Models Kunming Institute of ZoologyChinese Academy of SciencesKunming 650201China Yunnan Key Laboratory of Integrative Anthropology Kunming Institute of ZoologyChinese Academy of SciencesKunming 650201China Department of Biology Shenzhen MSU-BIT UniversityShenzhen 518172China Institute for Ecological Research and Pollution Control of Plateau Lakes School of Ecology and Environmental ScienceYunnan UniversityKunming 650500China Section for Computational and RNA Biology Department of BiologyUniversity of CopenhagenCopenhagen DK-1350Denmark Department of Biology and Biotechnology L.Spallanzani University of PaviaPavia 27100Italy Key Laboratory of Western China's Environmental Systems(Ministry of Education) College of Earth and Environmental SciencesLanzhou UniversityLanzhou 73000oChina Faculty of Veterinary Medicine Utrecht UniversityUtrecht 3584 CSthe Netherlands Yazhouwan National Laboratory Sanya 572024China CAAS-ILRI Joint Laboratory on Livestock and Forage Genetic Resources Institute of Animal ScienceChinese Academy of Agricultural Sciences(CAAS)Beijing 100193China Key Laboratory of Vertebrate Evolution and Human Origins Institute of Vertebrate Paleontology and PaleoanthropologyCenter for Excellence in Life and PaleoenvironmentChineseAcademy of SciencesBeijing 100044China Anthropology Department Washington University in St.LouisMissouriMO 63130USA n Center for Excellence in Animal Evolution and Genetics Chinese Academy of SciencesKunming 650201China Southwest United Graduate School Kunming 650500China

Aurochs(Bos primigenius),once widely distributed in Afro-Eurasia,became extinct in the early 1600 ***,their phylogeography and relative contributions to domestic cattle remain *** this study,we analyzed 16 genomes of ancient aurochs and three mitogenomes of ancient bison(Bison priscus)excavated in East Asia,dating from 43,000 to 3,590 years *** newly generated data with previously published genomic information on aurochs as well as ancient/extant domestic cattle worldwide through genome ***ﬁndings revealed signiﬁcant genetic divergence between East Asian aurochs and their European,Near Eastern,and African counterparts on the basis of both mitochondrial and nuclear genomic ***,we identiﬁed evidence of geneﬂow from East Asian aurochs into ancient and present-day taurine cattle,suggesting their potential role in facilitating the environmental adaptation of domestic cattle.

关键词： East Asian aurochs Ancient DNA Cattle domestication Adaptive introgression

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Synthesis and characterization of functional chitosan-based microspheres as biodegradable yttrium-90 delivery system for radioembolization therapy

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International Journal of Biological Macromolecules 2025年 312卷 144090页

作者： Zhang, Haoyu Pan, Xiangni Wu, Qiang Wu, Yehuizi Zheng, Ningchao Ning, Shunyan Zeng, Deqian Chen, Lifeng Li, Wenlong Wang, Ji Jiang, Tianjiao Long, Xizhi Watabe, Hiroshi Wu, Hao Wu, Yan Wei, Yuezhou Yin, Xiangbiao School of Nuclear Science and Technology University of South China 28 Changsheng West Road Hengyang421001 China Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards School of Public Health Hengyang Medical School University of South China Hengyang421001 China Division of Radiation Protection and Safety Control Cyclotron and Radioisotope Center Tohoku University 6-3 Aoba Aramaki Aoba-ku Miyagi Sendai980-8578 Japan School of Nuclear Science and Engineering Shanghai Jiao Tong University 800 Dong Chuan Road Shanghai200240 China Key Laboratory of Advanced Nuclear Energy Design and Safety Ministry of Education University of South China 28 Changsheng West Road Hengyang China

Transarterial radioembolization (TARE) using yttrium-90 (90Y)-labeled glass and resin microspheres is an emerging therapeutic technique for hepatocellular carcinoma (HCC). However, the non-biodegradability and rapid settlement of current commercial microspheres might hinder their even distribution and repetitive administration thus causing unsatisfactory therapeutic effects. In this context, novel functional chitosan-based microspheres (CPIs) that can efficiently label Y as a favorable TARE material were developed for the first time by successive grafting poly (glycidyl methacrylate) (PGMA) and iminodiacetic acid (IDA) onto chitosan microspheres (CMs). The results confirmed that the CPIs had desirable spherical shapes with average diameters of around 20.9 μm, an ideal settlement rate within 5 min, and considerable biodegradability at 10th weeks. It reached Y adsorption equilibrium within 30 min and maintained the maximum adsorption capacity up to 14.95 mg g−1 at pH 6.0 following pseudo-second-order kinetic and Langmuir models. Additionally, Y-labeled CPIs were rather stable in vitro, for which Y would firmly interact with the sodium carboxylate group and tertiary amine nitrogen atoms on IDA, and its leakage when shaken in phosphate-buffered saline for 24 h was barely detected. Altogether, these properties of the as-developed CPIs hold great potential as promising radioembolization microspheres for TARE therapy against liver cancer. © 2025 Elsevier B.V.

关键词： Grafting (chemical)

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Bisphenol Analogues in Widely Used Polystyrene-Made Food Containers

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SSRN 2021年

作者： Zhao, Nan Fang, Shuhong Zhu, Jianqiang Zhao, Meirong Jin, Hangbiao Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province College of Environment Zhejiang University of Technology Hangzhou310014 China College of Resources and Environment Chengdu University of Information Technology Chengdu610225 China Department of Environmental Engineering Taizhou University Taizhou Zhejiang318000 China

Bisphenol analogues (BPs), such as bisphenol A (BPA) and bisphenol S (BPS), are mainly used to produce polycarbonate consumer products. However, the occurrence of BPs in polystyrene-made plastic products, such as white foam take-out containers (WFTOCs), has not been well characterized. In this study, WFTOC samples were collected from restaurants in 21 Chinese cities ( n = 128), 3 Canadian cities ( n = 18), and Krakow (Poland;n = 6), and analyzed them for 20 BPs. BPA was consistently the predominant BP, followed by BPS and bisphenol AF, in WFTOCs from three countries. Very high concentrations of BPA and BPS were detected in WFTOCs from China (2694 and 552 ng/g), compared with Canada (mean 81 and 45 ng/g, respectively) and Poland (95 and 16 ng/g). These BPA levels are even comparable to that reported in polycarbonate baby bottles and milk bottles made of BPA. Other BPs, such as bisphenol TMC (BPTMC;detection frequency 65%, © 2021, The Authors. All rights reserved.

关键词： Phenols

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Simultaneous pyridine biodegradation and nitrogen removal in an aerobic granular system

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Journal of Environmental Sciences 2018年第5期30卷 318-329页

作者： Xiaodong Liu Shijing Wu Dejin Zhang Jinyou Shen Weiqing Han Xiuyun Sun Jiansheng Li Lianjun Wang Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse School of Environmental and Biological EngineeringNanjing University of Science and Technology

Simultaneous pyridine biodegradation and nitrogen removal were successfully achieved in a sequencing batch reactor（SBR） based on aerobic granules. In a typical SBR cycle, nitritation occurred obviously after the majority of pyridine was removed, while denitrification occurred at early stage of the cycle when oxygen consumption was aggravated. The effect of several key operation parameters, i.e., air flow rate, influent NH4~＋-N concentration,influent p H and pyridine concentration, on nitritation, pyridine degradation and total nitrogen（TN） removal, was systematically investigated. The results indicated that high air flow rate had a positive effect on both pyridine degradation and nitritation but a negative impact of overhigh air flow rate. With the increase of NH4~＋ dosage, both nitritation and TN removal could be severely inhibited. Slightly alkaline condition, i.e., pH 7.0–8.0, was beneficial for both pyridine degradation and nitritation. High pyridine dosage often resulted in the delay of both pyridine degradation and nitritation. Besides, extracellular polymeric substances production was affected by air flow rate, NH4~＋ dosage, pyridine dosage and p *** addition, high-throughput sequencing analysis demonstrated that Bdellovibrio and Paracoccus were the dominant species in the aerobic granulation system. Coexistence of pyridine degrader, nitrification related species, denitrification related species, polymeric substances producer and self-aggregation related species was also confirmed by highthroughput sequencing.

关键词： Aerobic granule Biodegradation Nitritation Denitrification Pyridine

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