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Cultivars and oil extraction techniques affect Cd/Pb contents and health risks in oil of rapeseed grown on Cd/Pb-contaminated farmland

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Frontiers of environmental Science & Engineering 2023年第7期17卷 119-131页

作者： Junmei Guo Yuexing Wei Junxing Yang tongbin chen Guodi Zheng Tianwei Qian Xiaona Liu Xiaofei Meng Mengke He College of environmental Science and Engineering Taiyuan University of TechnologyJinzhong 030600China center for environmental {2. Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China University of chinese academy of Sciences Beijing 100049China

Substitute planting with rapeseed offers promise for safely using large areas of Cd/Pb-contaminated ***/Pb distributions during rapeseed oil production were investigated and health risks posed by the oil were *** were performed using three cultivars(Brassica rapa SYH and ZS100 and Brassica napus QY-1)and four oil extraction techniques(mechanical and low-temperature pressing and n-hexane and subcritical low-temperature butane extraction).The amounts of Cd and Pb in oil were 0.73.-8.44%and 3.14%-11.76%,respectively,of the amounts in rapeseed and were strongly affected by the cultivar and oil extraction *** heavy metal(HM)concentrations were lower in solvent-extracted oil(particularly subcritical low-temperature butane extracted oil,in which HMs were not detected)than mechanically pressed *** Cd and Pb transfer indices were lower(meaning larger proportions of HMs were retained by the rapeseed meal)for *** than *** was attributed to a high HM binding protein content of *** *** risks to humans were assessed using a probabilistic risk assessment *** carcinogenic risk was mainly(97.1%-99.9%)caused by Cd and poses more concern than non-carcinogenic *** health risks are posed by mechanically pressed than solvent-extracted oil,and higher carcinogenic risks are posed to people living in rural areas than urban *** planting with *** and extracting oil with organic solvent(preferably subcritical low-temperature butane)are optimal for safely utilizing Cd/Pb-contaminated *** should be paid to the health risks posed by Cd in oil to rural populations.

关键词： Rapeseed oil Oil extraction technologies Human health risk assessment Cd/Pb-contaminated farmland Substitute planting

Identifying factors that influence soil heavy metals by using categorical regression analysis:A case study in beijing,china

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Frontiers of environmental Science & Engineering 2020年第3期14卷 1-14页

作者： Jun Yang Jingyun Wang Pengwei Qiao Yuanming Zheng Junxing Yang tongbin chen Mei Lei Xiaoming Wan Xiaoyong Zhou center for environmental {2. Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China University of chinese academy of Sciences Beijing 100049China research center for Eco-{2. Sciences Chinese Academy of SciencesBeijing 100085China beijing Key Laboratory of remediation of Industrial Pollution Sites Environmental Protection Research Institute of Light IndustryBeijing 100048China

Identifying the factors that influence the heavy metal contents of soil could reveal the sources of soil heavy metal *** this study,a categorical regression was used to identify the factors that influence soil heavy ***,environmental factors were associated with soil heavy metal data,and then,the degree of influence of different factors on the soil heavy metal contents in beijing was analyzed using a categorical *** results showed that the soil parent material,soil type,land use type,and industrial activity were the main influencing factors,which suggested that these four factors were important sources of soil heavy metals in *** addition,population density had a certain influence on the soil Pb and Zn *** distribution of soil As,Cd,Pb,and Zn was markedly influenced by interactions,such as traffic activity and land use type,industrial activity and population *** spatial distribution of soil heavy metal hotspots corresponded well with the influencing factors,such as industrial activity,population density,and soil parent *** this study,the main factors affecting soil heavy metals were identified,and the degree of their influence was ranked.A categorical regression represents a suitable method for identifying the factors that influence soil heavy metal contents and could be used to study the genetic process of regional soil heavy metal pollution.

关键词： Soil Heavy metal Influencing factor Categorical regression Identification method

Subcellular distribution and compartmentalization of arsenic in Pteris vittata L.

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chinese Science Bulletin 2005年第24期50卷 2843-2849页

作者： chen tongbin YAN Xiulan LIAO Xiaoyong XIAO Xiyuan HUANG Zechun XIE Hua ZHAI Limei center for environmental {2. Institute of Geographic Sciencesand Natural Resources Research Chinese Academy of Sciences Beijing 100101 China

The subcellular distribution of arsenic (As) in Pteris vittata L., an As-hyperaccumulator, was studied to de- termine As compartmentalization and to explore the mecha- nisms that confer As tolerance. When the plant was grown in a nutrient solution without additional As, most of the accu- mulated As was isolated to the cell wall. However, in plants growing in a nutrient solution containing 0.1 or 0.2.mmol/L As, approximately 78% of the total As accumulated within the pinna. The proportions of As accumulation in the cyto- plasmic supernatant fraction were 78% of that in the pinna and 61% of that in the plant. In either treatment group (0.1 or 0.2.mmol/L As), the fraction containing the lowest level of As was the organelle fraction. These results suggest that As accumulates in the pinna where it is primarily distributed in the cytoplasmic supernatant fraction. The role of As com- partmentalization may be intricately linked with As detoxi- fication in P. vittata L.

关键词：砷超量聚积植物环境污染亚细胞分布凤尾蕨属

Ecological wetland paradigm drives water source improvement in the stream network of Yangtze River Delta

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Journal of environmental Sciences 2021年第12期33卷 55-72页

作者： Weidong Wang Ting Yang Weibing Guan Weixi Peng Ping wu bin Zhong Chundong Zhou Qinghua {3. Rongbin Zhang Kewen Xu {3.gqing Yin Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of chinese academy of Sciences Beijing 100049China College of Marine Ecology and Environment Shanghai Ocean UniversityShanghai 201306China Jiaxing Water Conservancy Investment Co.Ltd. Jiaxing 314033China Water Resources&Hydroelectric Prospecting&Design research institute of Jiaxing City Jiaxing 314033China Haining Clean Source Water Co.Ltd. Haining 314400China Jiaxing Qiuyuan Monitoring Technology Co.Ltd. Jiaxing 314006China

Jiaxing created a precedent using bypass riparian marshes to purify micro-polluted water sources in ***-wetland complex with constructed root channel technology becomes a paradigm which can be analogized as"human-body wetland model"based on bionics or *** plant-bed/ditch system with highly active land/water ecotone interfaces,especially meandering boundaries,breeds many biochemical reactions"living areas".Optimization of hydraulic regulation promotes redox environment alternations and wetland treatment *** we reported a series of upgrades and performances in Guanjinggang wetland after the Shijiuyang *** reform of plant-bed/ditch system played a vital *** root channel zone was main force of wetland purification,and temporally the treatment effect was higher in low-temperature seasons indicating non-temperature dependent mechanisms *** pollution comprehensive index improved steadily from IV to III,and comprehensive pollution load was reduced by ca.40%–60%.Comprehensive evaluation function value further showed the gradients purification effect of the upgraded *** wetlands ameliorated source water quality,and reduced drinking water treatment reagents,thereby bringing about economic *** wetlands operation,people can see how the micro-polluted surface water becomes clear and clean,so promoting a significant social *** a viable component of urban green space,wetlands could beautify regional eco-environment,freshen the air,increase urban ecological taste,and enhance the eco-environmental protection ***,the multifunctional service values and indirect benefits are *** ecological wetlands provide a typical paradigm for water pollution remediation in developing countries and plays a leading role in technology engineering radiation effect.

关键词： Pond-wetland combination Constructed root channel technology Plant-bed/ditch system Semi-subsurface flow wetland Human-body wetland model

Water consumption and biodiversity:Responses to global emergency events

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Science Bulletin 2024年第16期69卷 2632-2646页

作者： Dandan Zhao Junguo Liu Laixiang Sun Klaus Hubacek Stephan Pfister Kuishuang Feng Heran Zheng Xu Peng Daoping Wang Hong Yang Lei Shen Fei Lun Xu Zhao bin chen Marko Keskinen Shaohui Zhang Jialiang Cai Olli Varis Water&Development research Group Department of Built EnvironmentAalto UniversityEspoo 15200Finland School of Water Conservancy North China University of Water Resources and Electric PowerZhengzhou 450046China School of environmental Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Department of geographical Sciences University of MarylandCollege Park 20742USA School of Finance and Management SOASUniversity of LondonLondon WC1H0XGUK Integrated research on Energy Environment and SocietyEnergy and Sustainability Research Institute GroningenUniversity of GroningenGroningen 9747AGthe Netherlands ETH Zurich Institute of Environmental EngineeringZurich 8093Switzerland The Bartlett School of Sustainable Construction University College LondonLondon WC1E6BTUK School of Business Jiangnan UniversityWuxi 214122China Department of Computer Science and Technology University of CambridgeCambridge CB21TNUK w2. environmental Consulting GmbH Duebendorf 8600Switzerland Key Laboratory for Resource Use and environmental remediation Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China College of Land Science and Technology China Agricultural UniversityBeijing 100083China institute of Blue and Green Development Shandong UniversityWeihai 264209China Fudan Tyndall center Department of Environmental Science and EngineeringFudan UniversityShanghai 200438China School of Economics and Management Beihang UniversityBeijing 100191China International institute for Applied Systems Analysis Laxenburg A-2361Austria

Given that it was a once-in-a-century emergency event,the confinement measures related to the coronavirus disease 2.19(COVID-19)pandemic caused diverse disruptions and changes in life and work *** changes significantly affected water consumption both during and after the pandemic,with direct and indirect consequences on ***,there has been a lack of holistic evaluation of these ***,we propose a novel framework to study the impacts of this unique global emergency event by embedding an environmentally extended supply-constrained global multi-regional input-output model(MRIO)into the drivers-pressure-state-impact-response(DPSIR)*** framework allowed us to develop scenarios related to COVID-19 confinement measures to quantify country-sector-specific changes in freshwater consumption and the associated changes in biodiversity for the period of *** results suggest progressively diminishing impacts due to the implementation of COVID-19 vaccines and the socio-economic system’s self-adjustment to the new *** 2.2.,the confinement measures were estimated to decrease global water consumption by about 5.7% on average across all scenarios when compared with the baseline level with no confinement ***,such a decrease is estimated to lead to a reduction of around 5% in the related pressure on *** the interdependencies and interactions across global supply chains,even those countries and sectors that were not directly affected by the COVID-19 shocks experienced significant impacts:Our results indicate that the supply chain propagations contributed to 79% of the total estimated decrease in water consumption and 84%of the reduction in biodiversity loss on *** study demonstrates that the MRIO-enhanced DSPIR framework can help quantify resource pressures and the resultant environmental impacts across supply chains when facing a global emergency ***,we recommend the development o

关键词： Global emergency events Water-biodiversity causal effect COVID-19 Biodiversity MRIO-enhanced DPSIR framework Supply-chain network High-resolution water consumption dataset Supply-constrained multi-regional input-output(mixed MRIO)model

Microbial diversity accumulates in a downstream direction in the Three Gorges Reservoir

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Journal of environmental Sciences 2021年第3期33卷 156-167页

作者： Shang Wang Weiguo Hou Hongchen Jiang Liuqin Huang Hailiang Dong Shu chen {2. Wang Yongcan chen {2.liang Lin Ye Deng CAS Key Laboratory of environmental Biotechnology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China School of Environment and Resource Southwest University of Science and TechnologySichuan 621010China State Key Laboratory of Biogeology and environmental Geology China University of GeosciencesBeijing 100083China School of Ocean Sciences China University of GeosciencesBeijing 100083China State Key Laboratory of Biogeology and environmental Geology China University of GeosciencesWuhan 430074China Department of Hydraulic Engineering Tsinghua UniversityBeijing 100084China Department of Geology and environmental Earth Science Miami UniversityOxfordOH 45056USA

Organic and inorganic materials migrate downstream and have important roles in regulating environmental health in the river ***,it remains unclear whether and how a mixture of materials(i.e.,microbial species)from various upstream habitats contribute to microbial community coalescence upstream of a *** we track the spatial variation in microbial abundance and diversity in the Three Gorges Reservoir based on quantitative PCR and 16 S rRNA gene high-throughput sequencing *** further quantitatively assess the relative contributions of microbial species from mainstem,its tributaries,and the surrounding riverbank soils to the area immediately upstream of the Three Gorges Dam(TGD).We found an increase of microbial diversity and the convergent microbial distribution pattern in areas immediately upstream of TGD,suggesting this area become a new confluence for microbial diversity immigrating from ***,the number of shared species increased from upstream to TGD but unique species decreased,indicating immigration of various sources of microbial species overwhelms local environmental conditions in structuring microbial community close to *** quantifying the sources of microbial species close to TGD,we found little contribution from soils as compared to tributaries,especially for sites closer to TGD,suggesting tributary microbes have greater influence on microbial diversity and environmental health in the Three Gorges ***,our results suggest that tracking microbial {3. origin and evaluating accumulating effects of microbial diversity shed light on the ecological processes in microbial communities and provide information for regulating aquatic ecological health.

关键词： Three Gorges Dam Microbial source tracking Microbial community coalescence Immigration Accumulating effect

Spatiotemporal Distribution and Epidemiological Characteristics of Hospital Admissions for Carbon Monoxide Poisoning in Guangdong,china.2.13.2.2.

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Biomedical and environmental Sciences 2022年第10期35卷 943-953页

作者： XIAO bin ZHANG You Miao ZHOU Jing XU cheng Dong HU Wei WEN Wei chen Jia bin SUN cheng Ye National institute for Occupational Health and Poison Control Chinese Center for Disease Control and PreventionBeijing 100050China Guangdong Province Hospital for Occupational Disease Prevention and Treatment Guangdong Provincial Key Laboratory of Occupational Disease Prevention and TreatmentGuangzhou 510300GuangdongChina School of Public Health Sun Yat-sen UniversityGuangzhou 510030GuangdongChina State Key Laboratory of Resources and environmental Information System Institute of Geographic Science and Natural Resource ResearchChinese Academy of SciencesBeijing 100101China University of chinese academy of Sciences Beijing 100101China Commission Affairs center of Health Commission of Guangdong Province Guangzhou 510060GuangdongChina

Objective This study aimed to determine the spatiotemporal distribution and epidemiological characteristics of hospital admissions for carbon monoxide poisoning(COP)in Guangdong,china.from 2.13.to *** Data on age-and sex-specific numbers of hospital admissions due to COP in Guangdong(2.13.2.2.)were *** temperatures were downloaded through the china.Meteorological Data Sharing Service *** analyzed temporal trends through time series decomposition and used spatial autocorrelation analysis to detect spatial *** distributed lag nonlinear model was used to quantify the effects of *** There were 48,854 COP admissions over the study *** sex ratio(male to female)was1:*** concentration ratios(M)ranged from *** highest risk occurred in January(season index=3.59).Most cases were concentrated in the northern mountainous areas of Guangdong with high-high *** in the study region showed significant spatial autocorrelation,and the global Moran’s I value of average annual hospital admission rates for COP was 0.447(P2.)]on COP were 2.2.-3.81,as compared with the reference temperature[median(2.℃)].Conclusion COP in Guangdong province showed significant temporal and spatial *** temperature was associated with a high risk of COP,and the influence had a lag lasting 7 days.

关键词： Carbon monoxide poisoning Hospitalization Distributed lag nonlinear model Spatialtemporal model

Could the Recent Taal Volcano Eruption Trigger an El Ni?o and Lead to Eurasian Warming?

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Advances in Atmospheric Sciences 2020年第7期37卷 663-670页

作者： Fei LIU chen XING Jinbao LI bin WANG Jing CHAI Chaochao GAO Gang HUANG Jian LIU Deliang chen School of Atmospheric Sciences and Guangdong Province Key Laboratory for Climate Change and natural Disaster Studies Sun Yat-sen UniversityZhuhai 519082China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519082China Earth System Modeling and Climate Dynamics research center Nanjing University of Information Science and TechnologyNanjing 210044China Department of Geography University of Hong KongPokfulamHong Kong Department of Atmospheric Sciences and International Pacific research center University of Hawaii at ManoaHonoluluHI 96822USA Department of environmental Science Zhejiang UniversityHangzhou 310058China State key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Key Laboratory for Virtual geographic Environment Ministry of EducationJiangsu Provincial State Key Laboratory Cultivation Base of Geographical Environment EvolutionSchool of Geography ScienceNanjing Normal UniversityNanjing 210023China Department of Earth Sciences University of GothenburgGothenburg 40530Sweden

The Taal Volcano in Luzon is one of the most active and dangerous volcanoes of the Philippines.A recent eruption occurred on 12.January 2.2.(Fig.1a),and this volcano is still active with the occurrence of volcanic *** eruption has become a deep concern worldwide,not only for its damage on local society,but also for potential hazardous consequences on the Earth’s climate and environment.

关键词： Volcano Philippines worldwide

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广西西江流域土壤铅空间分布与污染评价

环境科学 2018年第5期39卷 2446-2455页

作者：张云霞宋波陈同斌伏凤艳黄飞庞瑞潘惠妹桂林理工大学环境科学与工程学院桂林541004 桂林理工大学岩溶地区水污染控制与用水安全保障协同创新中心桂林541004 中国科学院地理科学与资源研究所北京100101

为了解广西西江流域土壤Pb含量分布特征,采集有色金属矿区土壤、农田土壤(水田土壤和旱地土壤)和自然土壤共2.594个样品,采用地统计分析与GIS相结合的方法研究流域内土壤Pb含量空间分布特征与污染状况.结果表明,西江流域土壤Pb背景值为5... 详细信息

为了解广西西江流域土壤Pb含量分布特征,采集有色金属矿区土壤、农田土壤(水田土壤和旱地土壤)和自然土壤共2.594个样品,采用地统计分析与GIS相结合的方法研究流域内土壤Pb含量空间分布特征与污染状况.结果表明,西江流域土壤Pb背景值为51.84 mg·kg^(-1),单样本T检验结果表明,显著高于前人背景值研究结果(2..08 mg·kg^(-1))和广西土壤背景值(2..50 mg·kg^(-1)).矿区土壤、旱地土壤和水田土壤Pb含量分别为655.9、116.7和40.63.mg·kg^(-1),矿区土壤Pb含量显著高于其他类型土壤.以《土壤环境质量标准》(GB 15618-1995)和土壤基线值为参考值,超标率分别为57.69%、16.40%、8.92.和54.95%、8.09%、2.03.,矿区和农田土壤存在明显的Pb积累.流域土壤Pb有明显的空间自相关性,以结构性变异为主.西江流域上游至中、下游土壤Pb呈现总体递减趋势,流域特征明显,高Pb含量样点在刁江上游的聚集远大于刁江下游都安段.西江流域土壤样本Pb总体介于轻度污染-中度污染之间,金城江区及南丹县土壤Pb污染突出,与当地频繁的矿业活动密切相关.

关键词：西江流域土壤铅污染评价空间分布