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Toxicological Effects of Secondary Air Pollutants

Chemical Research in Chinese Universities 2023年第3期39卷 326-341页

作者： XIANG wang wang weigang DU Libo ZHAO Bin LIU Xingyang ZHANG Xiaojie YAO Li GE Maofa State Key Laboratory for Structural Chemistry of Unstable and Stable Species Beijing National Laboratory for Molecular SciencesCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190P.R.China University of Chinese Academy of Sciences Beijing 100049P.R.China College of Chemistry and Material Science Hebei Normal UniversityShijiazhuang 050024P.R.China

Secondary air pollutants,originating from gaseous pollutants and primary particulate matter emitted by natural sources and human activities,undergo complex atmospheric chemical reactions and multiphase *** gaseous pollutants represented by ozone and secondary particulate matter,including sulfates,nitrates,ammonium salts,and secondary organic aerosols,are formed in the atmosphere,affecting air quality and human *** paper summarizes the formation pathways and mechanisms of important atmospheric secondary ***,different secondary pollutants’toxicological effects and corresponding health risks are *** have shown that secondary pollutants are generally more toxic than primary ***,due to their diverse source and complex generation mechanism,the study of the toxicological effects of secondary pollutants is still in its early ***,this paper first introduces the formation mechanism of secondary gaseous pollutants and focuses mainly on ozone’s toxicological *** terms of particulate matter,secondary inorganic and organic particulate matters are summarized separately,then the contribution and toxicological effects of secondary components formed from primary carbonaceous aerosols are ***,secondary pollutants generated in the indoor environment are briefly ***,a comprehensive review of secondary air pollutants may shed light on the future toxicological and health effects research of secondary air pollutants.

关键词： Secondary pollutant Atmosphere Toxicological effect Public health Particulate matter

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Evaluation and impact factors of indoor and outdoor gas-phase nitrous acid under different environmental conditions

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Journal of Environmental Sciences 2020年第9期32卷 165-171页

作者： Yan Chen weigang wang Chaofan Lian Chao Peng Wenyu Zhang Junling Li Mingyuan Liu Bo Shi Xuefei wang Maofa Ge State Key Laboratory for Structural Chemistry of Unstable and Stable Species Beijing National Laboratory for Molecular Sciences(BNLMS)CAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China School of Chemical Sciences University of Chinese Academy of SciencesBeijing 100049China Center for Excellence in Regional Atmospheric Environment Institute of Urban EnvironmentChinese Academy of ScienceXiamen 361021China

As an important indoor pollutant,nitrous acid(HONO) can contribute to the concentration of indoor OH radicals by photolysis via sunlight penetrating into indoor environments,thus affecting the indoor oxidizing *** order to investigate the concentration of indoor HONO and its impact factors,three different indoor environments and two different locations in urban and suburban areas were selected to monitor indoor and outdoor pollutants simultaneously,including HONO,NO,NO2,nitrogen oxides(NOx),O3,and particle mass *** general,the concentration of indoor HONO was higher than that *** the urban area,indoor HONO with high average concentration(7.10 ppbV) was well-correlated with the *** the suburban area,the concentration of indoor HONO was only about 1-2 ppbV,and had a good correlation with indoor relative *** was mainly attributed to the heterogeneous reaction of NO2 on indoor *** sunlight penetrating into indoor environments from outside had a great influence on the concentration of indoor HONO,leading to a concentration of indoor HONO close to that outdoors.

关键词： impact environments outdoor

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Component fractionation of wood-tar by column chromatography with the packing material of silica gel

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Chinese Science Bulletin 2011年第14期56卷 1434-1441页

作者： wang Ze LIN weigang SONG WenLi DU Lin LI ZhengJie YAO JianZhong State Key Laboratory of Multi-Phase Complex System Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China

Bio-oil can be an important fuel resource for automobiles in the future,while its complex composition restricts the direct application of the bio-oil *** it is necessary to separate the complex mixture to relatively simplified fractions for goal directed specific treatments to reach the fuel quality for automobiles,and meanwhile different functional chemical materials and fine chemicals can be *** it is significant to investigate the bio-oil component separating *** the method of column chromatography by the packing material of silica gel with two series of eluants of cyclohexane-benzene-methanol and cyclohexane-dichloromethane-methanol were investigated for component fractionation of the raw wood tar (oil fraction of the liquid product by slow pyrolysis of wood).The analytical results show that the components in cyclohexane are rich in alkoxyl-monophenols;the components of alkyl-monophenols and five ring oxygen-containing compounds are abundant in benzene and in dichloromethane similarly;in the methanol fraction,the components are diverse and diphenols are relatively in higher content,comparatively small polar molecules and five ring oxygen-containing compounds are more abundant in the methanol fraction after being eluted by dichloromethane,and the content of 1-(4-hydroxy-3-methoxyphenyl)-2-propanone is higher after being eluted by benzene.

关键词：包装材料木焦油硅胶分馏成分柱层析含氧化合物二氯甲烷

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Tribological properties of low-temperature time-dependent pretreated graphite for mechanical seal pairs in high-speed turbopump

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Friction 2024年第2期12卷 305-318页

作者： Yangyang ZHAO Guoyuan ZHANG Junqian wang He wang weigang ZHAO Qunfeng ZENG School of Mechano-Electronic Engineering Xidian UniversityXi’an 710071China Xi’an Aerospace Propulsion Institute Xi’an 710071China Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System Xi’an Jiaotong UniversityXi’an 710049China

The friction coefficient and wear rate of pretreated graphite with liquid nitrogen were obtained by using a ball-on-disk tester,and the wear of GCr15–graphite seal pairs with the low-temperature time-dependent pretreatment was discussed by comparing the wear *** results show that liquid nitrogen pretreatment can affect the hardness and interlayer spacing of *** range of the friction coefficients of pretreated graphite changes from 0.17 to *** the increase of liquid nitrogen pretreatment time,the wear mechanism of graphite would change from dominated three-body wear to adhesion *** experimental results of the mechanical seal with liquid nitrogen pretreatment show that the wear rate of stator is less than 0.00165 mm^(3)·N^(−1)·m^(−1),and the graphite shows a good low-temperature compatibility.

关键词： graphite low-temperature pretreatment mechanical seal friction and wear

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银额盆地哈日凹陷异常高压储层测试压裂的探究与实践

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西安石油大学学报（自然科学版） 2024年第2期39卷 39-46页

作者：王卫刚张军涛高志亮乔红军陈治军曹天军陕西延长石油(集团)有限责任公司研究院陕西西安710065 陕西延长石油(集团)有限责任公司油气勘探公司陕西延安716000

银根-额济纳旗盆地哈日凹陷多口探井已获得工业油气流,但该凹陷油气地质条件极为复杂,钻遇的储层埋藏深、岩性复杂,主要表现为地层压力高、岩性致密、抗压强度高。同时该区域处于勘探初期,同等埋深储层无可借鉴的邻井压裂资料,严重制约... 详细信息

银根-额济纳旗盆地哈日凹陷多口探井已获得工业油气流,但该凹陷油气地质条件极为复杂,钻遇的储层埋藏深、岩性复杂,主要表现为地层压力高、岩性致密、抗压强度高。同时该区域处于勘探初期,同等埋深储层无可借鉴的邻井压裂资料,严重制约后续压裂工艺及勘探工作的开展。为此,提出了测试压裂的概念,通过对YH6井实施测试压裂压降数据的分析,求取储层的闭合压力、闭合时间、地应力、地层孔隙压力等参数,为主压裂的方案设计和优化,提供技术支撑基础,保证主压裂的成功实施。本研究对银额盆地高压、高应力储层的压裂试油作业和后续深层油气的勘探开发具有重大意义。

关键词：银额盆地哈日凹陷异常高压测试压裂

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上海市闵行区示范性社区康复中心建设探索与思考

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上海医药 2024年第10期45卷 15-17,26页

作者：王伟刚王宏马应忠杨建玲汤真清上海市闵行区虹桥社区卫生服务中心上海201102 上海工程技术大学上海201620 上海市闵行区卫生健康委员会上海201100 上海市闵行区梅陇社区卫生服务中心上海201108 上海市卫生和健康发展研究中心卫生政策研究部上海200040

作为上海市首个完成示范性社区康复中心全覆盖式建设的区域,本文通过总结闵行区建设经验、探索运行评价标准,发现和分析建设过程中遇到的问题,最终形成闵行区示范性社区康复中心建设经验并提出相应政策建议,为上海市其他区域及全国其他... 详细信息

作为上海市首个完成示范性社区康复中心全覆盖式建设的区域,本文通过总结闵行区建设经验、探索运行评价标准,发现和分析建设过程中遇到的问题,最终形成闵行区示范性社区康复中心建设经验并提出相应政策建议,为上海市其他区域及全国其他省市提供经验参考。

关键词：示范性社区康复中心建设标准社区康复服务

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油藏描述特征及新技术研究进展

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石油化工应用 2024年第6期43卷 11-14,18页

作者：王伟刚杨磊磊桑鹏程沈雨欣西安石油大学地球科学与工程学院陕西西安710065 西安石油大学陕西省油气成藏地质学重点实验室陕西西安710065

本文旨在针对油藏描述研究的广泛性,探讨油藏描述的概念、特征、技术应用优势和存在问题,并提出解决思路和发展趋势。同时,本文对于重新界定油藏描述和储层表征等概念具有一定的参考价值。

关键词：油藏描述储层表征研究进展

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5例肌肉萎缩性脊髓侧索硬化症合并胆道结石患者腹腔镜手术麻醉的回顾性分析

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航空航天医学杂志 2024年第1期35卷 5-7页

作者：滑炜王卫刚史伟常文博程鑫孔繁华通用医疗西安医院西安710000

目的肌肉萎缩性脊髓侧索硬化症(ALS)合并胆道结石患者腹腔镜手术麻醉的回顾性分析。方法ALS患者5例,3男2女,年龄48~61岁,体重47~68 kg,ALS病程6~11年。因胆道结石1例需行腹腔镜胆总管切开取石、T管引流术,4例腹腔镜胆囊切除术。5例患者... 详细信息

目的肌肉萎缩性脊髓侧索硬化症(ALS)合并胆道结石患者腹腔镜手术麻醉的回顾性分析。方法ALS患者5例,3男2女,年龄48~61岁,体重47~68 kg,ALS病程6~11年。因胆道结石1例需行腹腔镜胆总管切开取石、T管引流术,4例腹腔镜胆囊切除术。5例患者均选择全身麻醉,具体方法为采取镇静药物辅助下清醒气管插管后,静注咪达唑仑0.05 mg/kg、依托咪酯0.2 mg/kg、舒芬太尼10μg麻醉诱导。麻醉维持吸入1~3%七氟醚、泵注瑞芬太尼0.1~0.3μg/(kg·min)。容量控制通气,VT8 ml/kg,I∶E 1∶2,RR 10~14次/min,调整呼吸参数使P_(ET)CO_(2)维持在35~40 mmHg。CO_(2)气腹压力设定为12 mmHg。记录和分析患者麻醉前(T_(0))、切皮前(T_(1))、气腹充盈后(T_(2))、拔除气管导管前(T_(3))、出室前(T_(4))的平均动脉压(MAP)、脉搏血氧饱和度(SpO_(2))、心率(HR)、中心静脉压(CVP),以及T_(1)、T_(2)、T_(3)的气道内吸气峰压(PpK)和平台压(Pplat)。结果5例患者麻醉效果满意,效果评价均能达到Ⅰ级。与T_(0)比较,T_(1)时HR、MAP有明显降低(P<0.05);与T_(1)比较,T_(2)时HR、MAP、PpK、Pplat有明显升高(P<0.05);与T_(2)比较,T_(3)时PpK、Pplat明显下降(P<0.05)。结论ALS患者在不使用肌松药的全身麻醉下行腹腔镜手术是安全可行的。

关键词：肌肉萎缩性脊髓侧索硬化症腹腔镜手术全身麻醉肌松药

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Light absorption properties and potential sources of brown carbon in Fenwei Plain during winter 2018–2019

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Journal of Environmental Sciences 2021年第4期33卷 53-63页

作者： Wenyu Zhang weigang wang Jie Li Shuangliang Ma Chaofan Lian Kun Li Bo Shi Mingyuan Liu Yanyu Li QingQing wang Yele Sun Shengrui Tong Maofa Ge State Key Laboratory for Structural Chemistry of Unstable and Stable Species Beijing National Laboratory for Molecular Sciences(BNLMS)Chemistry Academy of Sciences Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Henan Environmental Monitoring Center Station Zhengzhou 450000China Laboratory of Atmospheric Chemistry Paul Scherrer Institute(PSI)Villigen 5232Switzerland Center for Excellence in Regional Atmospheric Environment Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China Department of Clinical Research Central Hospital Affiliated to Shandong First Medical UniversityJinan 250013China

A distinctive kind of organic carbon aerosol that could absorb ultraviolet-visible radiation is called brown carbon(Br C),which has an important positive influence on radiative budget and climate *** this work,we reported the absorption properties and potential source of Br C based on a seven-wavelength aethalometer in the winter of 2018–2019 at an urban site of Sanmenxia in Fenwei Plain in central ***,the mean value of Br C absorption coefficient was 59.6±36.0 Mm^(-1) at 370 nm and contributed 37.7%to total absorption,which made a significant impact on visibility and regional *** coefficients of Br C showed double-peak pattern,and Br C had shown small fluctuations under haze days compared with clean *** for the sources of Br C,Br C absorption coefficients expressed strong correlations with element carbon aerosols and primary organic carbon aerosols,indicating that most of Br C originated from primary *** linear correlations between trace metal elements(K,As,Fe,Mn,Zn,and Pb)and Br C absorption coefficients further referred that the major sources of Br C were primary emissions,like coal burning,biomass burning,and vehicle *** moderate relationship between Br C absorption coefficients and secondary organic aerosols suggested that secondary production of Br C also played an important *** 120 hr backward air mass trajectories analysis and concentration-weighted trajectories analysis were also used to investigate potential sources of Br C in and around this area,which inferred most parts of Br C were derived from local emissions.

关键词： Brown carbon Light absorption Potential source analysis Fenwei Plain

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Measurement of atmospheric nanoparticles:Bridging the gap between gas-phase molecules and larger particles

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Journal of Environmental Sciences 2023年第1期123卷 183-202页

作者： Chao Peng Chenjuan Deng Ting Lei Jun Zheng Jun Zhao Dongbin wang Zhijun Wu Lin wang Yan Chen Mingyuan Liu Jingkun Jiang Anpei Ye Maofa Ge weigang wang State Key Laboratory for Structural Chemistry of Unstable and Stable Species Beijing National Laboratory for Molecular Sciences(BNLMS)CAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China School of Environment Science and Engineering Nanjing University of Information Science&TechnologyNanjing 210044China School of Atmospheric Sciences Sun Yat-sen UniversityZhuhaiGuangdong 519082China State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and EngineeringPeking UniversityBeijing 100871China Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention(LAP3) Department of Environmental Science&EngineeringFudan UniversityShanghai 200433China Key Laboratory for the Physics and Chemistry of Nanodevices Department of ElectronicsSchool of Electronics Engineering and Computer SciencePeking UniversityBeijing 100871China University of Chinese Academy of Sciences Beijing 100049China

Atmospheric nanoparticles are crucial components contributing to fine particulate matter(PM_(2.5)),and therefore have significant effects on visibility,climate,and human *** to the unique role of atmospheric nanoparticles during the evolution process from gas-phase molecules to larger particles,a number of sophisticated experimental techniques have been developed and employed for online monitoring and characterization of the physical and chemical properties of atmospheric nanoparticles,helping us to better understand the formation and growth of new *** this paper,we firstly review these state-of-the-art techniques for investigating the formation and growth of atmospheric nanoparticles(e.g.,the gas-phase precursor species,molecular clusters,physicochemical properties,and chemical composition).Secondly,we present findings from recent field studies on the formation and growth of atmospheric nanoparticles,utilizing several advanced ***-more,perspectives are proposed for technique development and improvements in measuring atmospheric nanoparticles.

关键词： Nanoparticle Measurement techniques Size distributions Physical properties Chemical composition

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