检索结果-内蒙古大学图书馆

Vehicle emissions of primary air pollutants from 2009 to 2019 and projection for the 14th Five-Year Plan period in Beijing, China

引用

Journal of environmental Sciences 2023年第2期124卷 513-521页

作者： Tongran Wu Yangyang Cui Aiping Lian Ye Tian Renfei Li Xinyu Liu Jing Yan Yifeng Xue Huan Liu Bobo Wu National Engineering Research Center of Urban Environmental Pollution Control Beijing Municipal Research Institute of Environmental ProtectionBeijing 100037China Beijing Municipal Ecology and Environment Bureau Beijing 100048China State Key Joint Laboratory of ESPC School of EnvironmentTsinghua UniversityBeijing 100084China School of Ecology and Environment Beijing Technology and Business UniversityBeijing 100048China

Over the past decade,the emission standards and fuel standards in Beijing have been upgraded twice,and the vehicle structure has been improved by accelerating the elimination of 2.95 million old *** the formulation and implementation of these policies,the emissions of carbon monoxide(CO),volatile organic compounds(VOCs),nitrogen oxides(NO_(x)),and fine particulate matter(PM_(2.5))in 2019 were 147.9,25.3,43.4,and 0.91 kton in Beijing,*** emission factor method was adopted to better understand the emissions characteristics of primary air pollutants from combustion engine vehicles and to improve pollution *** combination with the air quality improvement goals and the status of social and economic development during the 14th Five-Year Plan period in Beijing,different vehicle pollution control scenarios were established,and emissions reductions were *** results show that the emissions of four air pollutants(CO,VOCs,NO_(x),and PM_(2.5))fromvehicles in Beijing decreased by an average of 68% in 2019,compared to their levels in *** contribution of NOx emissions from diesel vehicles increased from 35% in 2009 to 56% in 2019,which indicated that clean and energy-saving diesel vehicle fleets should be further *** vehicle adoption could be an important measure to reduce pollutant *** the further upgrading of vehicle structure and the adoption of electric vehicles,it is expected that the total emissions of the four vehicle pollutants can be reduced by 20%-41% by the end of the 14th Five-Year Plan period.

关键词： Emission variations Vehicle structure Electric vehicle 14th Five-Year Plan Air pollution

来源：评论

学校读者我要写书评

暂无评论

Understand the local and regional contributions on air pollution from the view of human health impacts

引用

Frontiers of environmental Science & Engineering 2021年第5期15卷 133-143页

作者： Yueqi Jiang Jia Xing Shuxiao Wang Xing Chang Shuchang Liu Aijun Shi Baoxian Liu Shovan Kumar Sahu State Key Joint Laboratory of Environmental Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing100084China State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Beijing100084China Beijing Municipal Research Institute of Environment Protection Beijing100037China Beijing Key Laboratory of Airborne Particulate Matter Monitoring Technology Beijing Municipal Environmental Monitoring CenterBeijing100048China

The source-receptor matrix of PM_(2.5)concentration from local and regional sources in the Beijing-Tianjin-Hebei(BTH)and surrounding provinces has been created in previous ***,because the spatial distribution of concentration does not necessarily match with that of the population,such concentration-based source-receptor matrix may not fully reflect the importance of pollutant control effectiveness in reducing the PM_(2.5)-related health *** demonstrate that,we study the source-receptor matrix of the PM_(2.5)-related deaths instead,with inclusion of the spatial correlations between the concentrations and the *** advanced source apportionment numerical model combined with the integrated exposure-response functions is used for BTH and surrounding regions in *** observed that the relative contribution to PM_(2.5)-related deaths of local emissions was 0.75%to 20.77%larger than that of PM_(2.5)*** results address the importance of local emissions control for reducing health impacts of PM_(2.5)particularly for local *** of regional transport to PM_(2.5)-related deaths in rural area was 22%larger than that in urban area due to the spatial pattern of regional transport which was more related to the rural *** resulted in an environmental inequality in the sense that people staying in rural area with access to less educational resources are subjected to higher impacts from regional transport as compared with their more resourceful and knowledgeable urban *** unexpected benefit from the multi-regional joint controls is suggested for its effectiveness in reducing the regional transport of PM_(2.5)pollution thus mitigating the associated environmental inequality.

关键词： PM_(2.5) Regional transport Local emissions Health impact environmental inequality

来源：评论

学校读者我要写书评

暂无评论

Seasonal variations, temperature dependence, and sources of size-resolved PM components in Nanjing, east China

引用

Journal of environmental Sciences 2022年第11期34卷 175-186页

作者： Mingjie Xie Wei Feng Shuyan He Qin’geng Wang Collaborative Innovation Center of Atmospheric Environment and Equipment Technology Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution ControlSchool of Environmental Science and EngineeringNanjing University of Information Science&TechnologyNanjing 210044China State Key Laboratory of Pollution Control and Resources Reuse School of the EnvironmentNanjing UniversityNanjing 210023China

Size-segregated ambient particulate matter(PM) samples were collected seasonally in suburban Nanjing of east China from 2016 to 2017 and chemically speciated. In both fine( 2.1 μm, PM>2.1) PM, organic carbon(OC) a... 详细信息

Size-segregated ambient particulate matter(PM) samples were collected seasonally in suburban Nanjing of east China from 2016 to 2017 and chemically speciated. In both fine(< 2.1μm, PM2.1) and coarse(> 2.1 μm, PM>2.1) PM, organic carbon(OC) accounted for the highest fractions(26.9% ± 10.9% and 23.1% ± 9.35%) of all measured species, and NO3-lead in average concentrations of water-soluble inorganic ions(WSIIs). The size distributions of measured components were parameterized using geometric mean diameter(GMD). GMD values of NO_(3)^(-), Cl^(-), OC, and PM for the whole size range varied from < 2.1 μm in winter to > 2.1μm in warm seasons, which was due to the fact that the size distributions of semi-volatile components(e.g., NH4NO3, NH4Cl, and OC) had a dependency on the ambient *** OC, elemental carbon(EC), and elements, NH_(4)^(+), NO_(3)^(-), and SO_(4)^(2-)exhibited an increase trend in GMD values with relative humidity, indicating that the hygroscopic growth might also play a role in driving seasonal changes of PM size distributions. Positive matrix factorization was performed using compositional data of fine and coarse particles, respectively. The secondary formation of inorganic salts contributing to the majority(> 70%) of fine PM and 20.2% ± 19.9% of speciated coarse PM. The remaining coarse PM content was attributed to a variety of dust sources. Considering that coarse and fine PM had comparable mass concentrations, more attention should be paid to local dust emissions in future air quality plans.

关键词： Particulate matter Size distribution Seasonal variation Semi-volatility Source apportionment

来源：评论

学校读者我要写书评

暂无评论

Chemodiversity of Fulvic Acid as Affected by Different Biowastes Materials During Composting: An Analysis by Ultraviolet–Visible Spectroscopy 14th

Chemodiversity of Fulvic Acid as Affected by Different Biowa...

引用

14th International Conference on environmental Science and Development, ICESD 2023

作者： Sun, Qingyu Cui, Yini Gao, Yiman Tan, Wenbing Xingtai Eco-Environmental Monitoring Center of Hebei Province Xingtai054000 China State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution Chinese Research Academy of Environmental Sciences Beijing100012 China

ISBN: (纸本)9783031560552

To explore the effect of UV–Vis spectra of different compost materials, this paper adopted nine other research materials on spectral characteristics of composting fulvic acid (FA). The results showed that the UV–Vis unit molar absorption strength increased in each compost, particularly stem waste, leaf waste, and cabbage waste, implying that the aromatization and unsaturated degree of FA increased, as did the humification of compost. Correlation analysis showed that germination index (GI) was positively correlated with E250/E365, significantly positively correlated with SUVA254 and S275–295, SR, and strongly negatively correlated with E253/E203, respectively. Therefore, E253/E203, SUVA254, S275–295, and E250/E365 could be used to evaluate compost maturity. Furthermore, all compost could be regarded as an indicator of reaching maturation when SUVA254 is higher than 0.21 mg/L. The change of maturity parameters indicated that E465/E665 of leaf waste, cabbage waste, stem waste, and municipal solid waste declined during composting, SUVA254, A240–400, S275–295, A3/A2 of kitchen waste, chicken manure, pig manure, and peat increased during composting. To summarize, the organic matter molecular weight, compost stability, and degree of humification significantly increased. Compost was classified into three groups based on hierarchical cluster analysis: cabbage waste, stem waste, and peat were in the first group;kitchen waste and leaf waste were in the second group;and pig manure, chicken manure, municipal solid waste, and grass waste were in the third group. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.

关键词： Municipal solid waste

来源：评论

学校读者我要写书评

暂无评论

Geographical Distribution of Atmospheric Nitrogen Deposition in China and Its Response to Emission control Policy

引用

Chinese Geographical Science 2024年第6期34卷 1017-1031页

作者： WEN Zhang YU Ziyin SI Ruotong XU Wen WANG Kai LIU Lei TANG Aohan ZHANG Fusuo KEITH Goulding LIU Xuejun State Key Laboratory of Nutrient Use and Management(SKL-NUM) College of Resources and Environmental SciencesNational Academy of Agriculture Green DevelopmentChina Agricultural UniversityBeijing 100193China State Environmental Protection Key Laboratory of Environmental Pollution and Greenhouse Gases Co-control Chinese Academy of Environmental PlanningBejing 100041China Sustainable Soils and Crops Rothamsted ResearchHarpenden AL52JOUK College of Resources and Environment Yunnan Agricultural UniversityKunming 650201China

Atmospheric nitrogen(N)deposition has experienced significant change because of anthropogenic emissions,thereby exerting a pronounced impact on global ecosystem *** the rapid development of industry and agriculture and the swift expansion of urban areas in China since the 1980s,reactive nitrogen(Nr)emissions and N deposition have substantially *** pursuit of im-proving air quality,China has implemented a series of environmental protection policies and undertaken diverse measures to reduce pol-lutant *** paper is a review of multivariate data sources of atmospheric N deposition based on the results of literature from 1980 to 2023,and the original data from 1980 to 2020 are summarized,counted and *** main findings are as follows:1)the annual average atmospheric N deposition ranged from approximately 20-40 kg/(ha·yr),with the variability primarily linked to different assessment methods;2)regional disparities were evident in the spatial distribution of N deposition,with elevated values concentrated in areas with intense Nr emissions;3)atmospheric N deposition significantly declined after 2010,particularly the deposition of oxidized N,while reduced N deposition remained *** results reflect the effects of China's serious control policies on nitrogen oxide(NO.)emissions and strengthen the importance of agricultural NH3 emission *** study contributes to a comprehensive understanding of the N dynamics in the emission-deposition process,and provides a scientific foundation for the research of environmental protection,climate change,and sustainable development.

关键词： nitrogen deposition emission-deposition relationship reactive nitrogen hotspots emission control policy China

来源：评论

学校读者我要写书评

暂无评论

On using an aerosol thermodynamic model to calculate aerosol acidity of coarse particles

引用

Journal of environmental Sciences 2025年第2期148卷 46-56页

作者： Zhengyang Fang Shuwei Dong Chengpeng Huang Shiguo Jia Fu Wang Haoming Liu He Meng Lan Luo Yizhu Chen Huanhuan Zhang Rui Li Yujiao Zhu Mingjin Tang State Key Laboratory of Organic Geochemistry Guangdong Key Laboratory of Environmental Protection and Resources UtilizationGuangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 101408China Longhua Center for Disease Control and Prevention of Shenzhen Shenzhen 518109China School of Atmospheric Sciences and Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Sun Yat-sen UniversityZhuhai 519082China Institute for Environmental and Climate Research Jinan UniversityGuangzhou 510632China Qingdao Eco-environment Monitoring Center of Shandong Province Qingdao 266003China Environment Research Institute Shandong UniversityQingdao 266237China

Thermodynamic modeling is still themostwidely usedmethod to characterize aerosol acidity,a critical physicochemical property of atmospheric ***,it remains unclear whether gas-aerosol partitioning should be incorporated when thermodynamicmodels are employed to estimate the acidity of coarse *** this work,field measurements were conducted at a coastal city in northern China across three seasons,and covered wide ranges of temperature,relative humidity and NH_(3) *** examined the performance of different modes of ISORROPIA-II(a widely used aerosol thermodynamic model)in estimating aerosol acidity of coarse and fine *** M0 mode,which incorporates gas-phase data and runs the model in the forward mode,provided reasonable estimation of aerosol acidity for coarse and fine *** to M0,the M1 mode,which runs the model in the forward mode but does not include gas-phase data,may capture the general trend of aerosol acidity but underestimates pH for both coarse and fine particles;M2,which runs the model in the reverse mode,results in large errors in estimated aerosol pH for both coarse and fine particles and should not be used for aerosol acidity ***,M1 significantly underestimates liquid water contents for both fine and coarse particles,while M2 provides reliable estimation of liquid water *** summary,our work highlights the importance of incorporating gas-aerosol partitioning when estimating coarse particle acidity,and thus may help improve our understanding of acidity of coarse particles.

关键词： Aerosol acidity Coarse particles Thermodynamic model Aerosol liquid water ISORROPIA-II Gas-aerosol partitioning

来源：评论

学校读者我要写书评

暂无评论

Anthropogenic monoterpenes aggravating ozone pollution

引用

National Science Review 2022年第9期9卷 178-185页

作者： Haichao Wang Xuefei Ma Zhaofeng Tan Hongli Wang Xiaorui Chen Shiyi Chen Yaqin Gao Ying Liu Yuhan Liu Xinping Yang Bin Yuan Limin Zeng Cheng Huang Keding Lu Yuanhang Zhang State Key Joint Laboratory of Environmental Simulation and Pollution Control State Environmental Protection Key Laboratory of Atmospheric Ozone Pollution ControlCollege of Environmental Sciences and Engineering Peking University School of Atmospheric Sciences Sun Yat-sen University Guangdong Provincial Observation and Research Station for Climate Environment and Air Quality Change in the Pearl River Estuary Key Laboratory of Tropical Atmosphere–Ocean System Ministry of Education Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Institute of Energy and Climate Research IEK-8:TroposphereForschungszentrum Jülich Gmb H State Environmental Protection Key Laboratory of Formation and Prevention of the Urban Air Complex Shanghai Academy of Environmental Sciences Institute for Environmental and Climate Research Jinan University

Monoterpenes have been known to have a critical influence on air quality and climate change through their impact on the formation of fine *** we present field evidence that monoterpene oxidations largely enhanced local ozone production in a regional site in eastern *** observed monoterpene was most likely from biomass burning rather than biogenic emissions,as indicated by the high correlation with CO at night-time,and the observed ratio of these two species was consistent with previously determined values from biomass burning *** monoterpene oxidations were determined experimentally based on direct radical measurements,leading to a daily ozone enhancement of 4-18 parts per billion by volume（ppb）,which was 6%-16% of the total ozone production,depending on the speciation of *** demonstrates that the previously overlo oked anthropogenic monoterpenes make an important contribution to 03 production in eastern *** role could possibly be important at similar locations across China and other parts of the world that are characterized by massive emissions,especially where there are high *** results highlight that anthropogenic monoterpenes should be taken into account when proceeding with the coordinated mitigation of O3and particulate matter pollution.

关键词： monoterpenes ozone pollution biomass burning anthropogenic emissions radical chemistry

来源：评论

学校读者我要写书评

暂无评论

Non‐chromate conversion process for zinc coating with durable hydrophobicity and enhanced corrosion resistance

引用

Biosurface and Biotribology 2022年第3期8卷 266-277页

作者： J.Y.Chen Z.Y.Hu Z.X.Li X.L.Wang C.D.Gu J.P.Tu School of Materials Science and Engineering State Key Laboratory of Silicon MaterialsZhejiang UniversityHangzhouChina Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province HangzhouChina Zhejiang Ecological and Environmental Monitoring Center HangzhouChina Zhejiang Key Laboratory of Ecological and Environmental Monitoring Forewarning and Quality ControlHangzhouChina

A Zn‐based coating with durable hydrophobicity and good corrosion resistance was formed on a mild steel substrate,which involves electroplating Zn from a non‐aqueous electrolyte,followed by passivation in an oleic acid(OA)*** electrodeposited Zn coatings were porous,which facilitated the formation of a chemical conversion layer of Zn oleate(ZO)during OA *** Zn coating after passivation had a twolayer structure,which included an outer layer of ZO with a thickness of~26μm and an inner layer of Zn with a thickness of~6μ*** outer layer ZO is a type of metal soap with a smooth surface and durable hydrophobicity,such that water droplets can easily slip off its *** testing and electrochemical measurements in 3.5 wt.%NaCl aqueous solution indicate that the Zn coating after OA passivation exhibits outstanding anti‐corrosion properties compared with those exhibited by pure Zn *** corrosion products and mechanism of the two‐layer coating were *** study shows that smooth metal oleate coatings can provide hydrophobicity and corrosion resistance simultaneously to mild steel substrates.

关键词： Anti‐corrosion Electrodeposition Hydrophobic coating Passivation Zn oleate

来源：评论

学校读者我要写书评

暂无评论

Progress in Research on Marine Litter-Related monitoring Technologies 5

Progress in Research on Marine Litter-Related Monitoring Tec...

引用

2023 5th International Conference on Advanced Materials and Ecological environment, AMEE 2023

作者： Liu, Haiying Wang, Mingqi Tang, Haitian Zhang, Hanlin Tianjin Research Institute for Water Transport Engineering Key Laboratory of Environmental Protection Technology on Water Transport Ministry of Transport China Yantai Marine Environment Monitoring Central Station of State Oceanic Administration China

The problem of marine litter pollution is becoming increasingly serious and has become one of the important global environmental issues. From the perspective of source and sink, floating riverine litter (FRL) is the main source of floating marine litter (FML), while beach litter (BL) and FML are the source and sink of each other. It is necessary to research the transformation mechanism and collaborative governance policy among these three kinds of marine litter, based on accurate monitoring data. However, conventional monitoring methods have problems such as high labor costs, insufficient representativeness and poor comparability. Hence, developing efficient and intelligent monitoring technology is the focus of recent future. Since 2018, monitoring technique of marine litter relevant research literature has grown rapidly, showing this technique a hot spot. In this paper, the relevant research literature is divided into three litter types (BL, FML, and FRL) and two ways (fixed monitoring and mobile monitoring). Similarities and differences in research focus, platform selection, result accuracy and result application are summarized and reasoned, with a view to accelerating the research progress and better supporting BL, FML, and FRL control in China. © Published under licence by IOP Publishing Ltd.

关键词： Metadata

来源：评论

学校读者我要写书评

暂无评论

The impact of water quality on the formation of halogenated benzoquinones and the adsorption efficiency by activated carbon

引用

Journal of environmental Sciences 2024年第1期135卷 693-702页

作者： Yongjing Wang Song Gao Xinyu Yan Songtao Wang Ruolin Zhang Yan Zhou Lianhai Ren Cheng Li State Environmental Protection Key Laboratory of Food Chain Pollution Control Beijing Technology and Business UniversityBeijing 100048China Institute of Scientific and Technical Information of China Beijing 100038China Institute of Quality Standard and Testing Technology Beijing Academy of Agriculture and Forestry SciencesBeijing 100097China Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry Beijing Technology and Business UniversityBeijing 100048China

Halogenated benzoquinones(HBQs)could cause bladder cancer,but there were few related studies on the generation and *** this study,the impact of different precursors,pH,bromide concentration,and algae-derived organic matters on the formation of HBQs and the removal efficiency by activated carbon were *** was found that the chlorination of bisphenol A produced the most 2,6-dichloro-1,4-benzoquinone(2,6-DCBQ),reaching 14.86μg/L at 1 hr,followed by tyrosine,2-chlorophenol,P-hydroxybenzoic acid,trichlorophenol,and *** production of 2,6-DCBQ increased first and then decreased from 0 to 36 hr(chlorination doses 0-20 mg/L),indicating that HBQs were unstable in ***(THMs)were detected during chlorination,and the concentration increased with prolongation of reaction time.2,6-DCBQ production decreased and 2,6-dibromo-1,4-benzoquinone(2,6-DBBQ)production increased with increment bromide concentration and the bromide promoted the formation of *** production of 2,6-DCBQ decreased with increase of pH,and the maximum production was 141.38μg/L at pH of *** aeruginosa,Chlorella algae cells,and intracellular organic matters(IOM)could be chlorinated as potential precursors for *** most amount of 2,6-DCBQ was generated from algae cells of Microcystis aeruginosa,followed by Chlorella algae cells,Microcystis aeruginosa IOM,and Chlorella *** study compared the removal efficiency of HBQs by granular activated carbon(GAC)and columnar activated carbon(CAC)under different carbon doses and initial concentrations of *** was found that the removal efficiency by GAC(80.1%)was higher than that by CAC(51.8%),indicating that GAC has better control for HBQs.

关键词： HBQS DBPS Drinking water Algae derived organic matters Activated carbon

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：