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Variations in traffic-related polycyclic aromatic hydrocarbons in PM2.5 in Kanazawa, Japan, after the implementation of a new vehicle emission regulation

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Journal of Environmental Sciences 2022年第11期34卷 38-47页

作者： wanli xing Lu Yang Hao Zhang Xuan Zhang Yan Wang Pengchu Bai Lulu Zhang Kazuichi Hayakawa Seiya Nagao Ning Tang Graduate School of Medical Sciences Kanazawa UniversityKakuma-machiKanazawa 920-1192Japan Institute of Nature and Environmental Technology Kanazawa UniversityKakuma-machiKanazawa 920-1192Japan Institute of Medical Pharmaceutical and Health SciencesKanazawa UniversityKakuma-machiKanazawa 920-1192Japan

A three-year sampling campaign was conducted at a roadside air pollution monitoring station in the urban area of Kanazawa, Japan. Due to a new emission regulation, PAHs levels decreased over the sampling campaign, exhibiting values of 706 ± 413 pg/m^(3) in 2017, 559 ±384 pg/m^(3) in 2018, and 473 ± 234 pg/m^(3) in 2019. In each year, similar seasonal variations in PAHs levels were observed, with higher levels observed in winter and lower levels in summer. Among the PAHs isomer ratios, we observed that the ratio of benzo[b]fluoranthene(BbF) and benzo[k]fluoranthene(BkF), [Bb F]/([BbF] + [BkF]), and the ratio of indeno[1,2,3-cd]pyrene(IDP) and benzo[ghi]perylene(BgPe), [IDP]/([BgPe] + [IDP]), showed stability over the sampling campaign and were less affected by the new emission regulation, seasonal variations, and regional characteristics. When using the combined ratio ranges of 0.66-0.80([Bb F]/[BbF] + [BkF]) and 0.26-0.49([IDP]/[Bg Pe] + [IDP]), traffic emissions were clearly distinguished from other PAHs emission sources. Principal component analysis(PCA) and positive matrix factorization(PMF) were also performed to further analyse the characteristics of traffic-related PAHs. Overall, this study affirmed the effectiveness of the new emission regulation in the reduction of PAHs emissions and provided a combined range for identifying PAHs traffic emission sources.

关键词： Urban air pollution Traffic emission Roadside air pollution monitoring station Source apportionment

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Adsorption isotherms and kinetic characteristics of methane on block anthracite over a wide pressure range

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Journal of Energy Chemistry 2015年第2期24卷 245-256页

作者： wanli xing Yongchen Song Yi Zhang Weiguo Liu Lanlan Jiang Yanghui Li Yuechao Zhao Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education School of Energy and Power Engineering Dalian University of Technology

It is important to quantitatively understand the methane adsorption and transport mechanism in coal for an evaluation of the reserves and for its production forecast. In this work, a block coal sample was chosen to perform the CH_4 adsorption experiments using the gravimetric method at temperatures of 293.60 K, 311.26 K, 332.98 K and 352.55 K and pressures up to 19 MPa. The excess adsorption capacity of CH_4 in dry block anthracite increased, followed by a sequence decrease with the increasing pressure. High temperature restrained the growth of the excess adsorption due to that the adsorption is an intrinsically physical and exothermic process. The excess adsorption peak decreased slowly with the increase of temperature and intersected at a pressure of more than 18 MPa; meanwhile, the pressure at the excess adsorption peak increased. The existing correlations were exanfined in terms of density rather than pressure. The DR＋k correlation, with an average relative deviation of 4-0.51%, fitted our data better than the others, with an average relative deviation of up to 2.29%. The transportation characteristics of CH_4 adsorption was also investigated in this study, including the adsorption rate and diffusion in block coal. The kinetic data could be described by a modified unipore model. The adsorption rates were found to exhibit dependence on pressure and temperature at low pressures, while the calculated diffusivities exhibited little temperature dependence. In addition, the kinetic characteristics were compared between CH_4 and CO_2 adsorption on the block coal. The excess adsorption ratios of CO_2 to CH_4 obtained from the DR＋k model decreased with the increasing pressure.

关键词： adsorption isotherm thermodynamic model adsorption rate diffusion

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Size distribution of particulate polycyclic aromatic hydrocarbons in fresh combustion smoke and ambient air: A review

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Journal of Environmental Sciences 2020年第2期32卷 370-384页

作者： Lulu Zhang Lu Yang Quanyu Zhou Xuan Zhang wanli xing Yongjie Wei Min Hu Lixia Zhao Akira Toriba Kazuichi Hayakawa Ning Tang Graduate School of Medical Sciences Kanazawa UniversityKakuma-machiKanazawa 920-1192Japan State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environment SciencesBeijing 100012China State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and EngineeringPeking UniversityBeijing 100871China State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Institute of Medical Pharmaceutical and Health SciencesKanazawa UniversityKakuma-machiKanazawa 920-1192Japan Institute of Nature and Environmental Technology Kanazawa UniversityKakuma-machiKanazawa 920-1192Japan

Polycyclic aromatic hydrocarbons(PAHs) are ubiquitous in the atmosphere and they mostly stem from the imperfect combustion of fossil fuels and biofuels.PAHs are inherently associated with homogenous fine particles or distributed to different-sized particles during the aging of air masses.PAHs carried by fine particles undergo a long-range transport to remote areas while those adsorbed on coarse particles have a shorter lifetime in ambient air.More importantly, PAHs with higher molecular weights tend to be bound with finer particles and can deeply enter the lungs, posing severe health risks to humans.Thus, the environmental fate and health effects of particulate PAHs are strongly size-dependent.This review summarizes the size distributions of particulate PAHs freshly emitted from combustion sources as well as the distribution patterns of PAHs in ambient particles.It was found that PAHs from stationary sources are primarily bound to fine particles, which are slightly larger than particles to which PAHs from mobile sources are bound.In ambient air, particulate PAHs are distributed in larger size modes than those in the combustion fume, and the particle size decreases with PAH molecular weight increasing.The relevant mechanisms and influencing factors of particle size distribution changes are illustrated in this article, which are essentially attributed to combustion and ambient temperature as well as the physical and chemical properties of PAHs.Overall, the study on the particle size distribution of PAHs will contribute for a full understanding of the origin, atmospheric behaviors and health effects of particulate PAHs.

关键词： Atmospheric pollution Coal combustion Biomass burning Vehicle exhaust Gas–particle partitioning

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Yearly variation in character istics and health risk of polycyclic aromatic hydrocarbons and nitro-PAHs in urban shanghai from 2010-2018

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Journal of Environmental Sciences 2021年第1期33卷 72-79页

作者： Lu Yang Xuan Zhang wanli xing Quanyu Zhou Lulu Zhang Qing Wu Zhijun Zhou Renjie Chen Akira Toriba Kazuichi Hayakawa Ning Tang Graduate School of Medical Sciences Kanazawa UniversityKakuma-machiKanazawa920-1192Jjapan School of Public Health Fudan UniversityShanghai 200032China Institute of Medical Pharmaceutical and Health SciencesKanazawa UniversityKakuma-machiKanazawa920-1192Japan Institute of Nature and Environmental Technology Kanazawa UniversityKakuma-machi920-1192KanazawaJapan

This study encompassed the regular observation of nine polycyclic aromatic hydrocarbons(PAHs)and three nitro-PAHs(NPAHs)in particulate matter(PM)in Shanghai in summer and winter from 2010 to 2018.The results showed that the mean concentrations of∑PAHs in summer decreased by 24.7%in 2013 and 18.1%in 2017 but increased by 10.2%in 2015 compared to the data in 2010.However,the mean concentrations of∑PAHs in winter decreased by 39.7%from 2010(12.8±4.55 ng/m^3)to 2018(7.72±3.33 ng/m^3),and the mean concentrations of 1-nitropyrene in winter decreased by 79.0%from 2010(42.3±16.1 pg/m^3)to 2018(8.90±2.09 pg/m^3).Correlation analysis with meteorological conditions revealed that the PAH and NPAH concentrations were both influenced by ambient temperature.The diagnostic ratios of PAHs and factor analysis showed that they were mainly affected by traffic emissions with some coal and/or biomass combustion.The ratio of 2-nitrofluoranthene to 2-nitropyrene was near 10,which indicated that the OH radical-initiated reaction was the main pathway leading to their secondary formation.Moreover,backward trajectories revealed different air mass routes in each sampling period,indicating a high possibility of source effects from the northern area in winter in addition to local and surrounding influences.Meanwhile,the mean total benzo[a]pyrene-equivalent concentrations in Shanghai in winter decreased by 50.8%from 2010(1860±645 pg/m^3)to 2018(916±363 pg/m^3).These results indicated the positive effects of the various policies and regulations issued by Chinese authorities.

关键词： Air pollution Fine particulate matter Polycyclic aromatic hydrocarbons Nitropolycyclic aromatic hydrocarbons Health risk Shanghai

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有氧烘焙对生物质气化及碱金属迁移转化特性的影响

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燃料化学学报（中英文） 2024年第1期52卷 9-18页

作者：开兴平朱景博杨天华王乐生王熙雯李秉硕邢万丽沈阳航空航天大学能源与环境学院、辽宁省清洁能源重点实验室辽宁沈阳110136

本工作研究了有氧烘焙对玉米秸秆组成成分、烘焙产率、化学结构及微观结构等理化特性及气化特性的影响,同时考察了玉米秸秆烘焙及气化过程中碱金属的迁移转化规律。结果表明,烘焙可有效提高玉米秸秆中固定碳含量,降低H/C、O/C。相较于... 详细信息

本工作研究了有氧烘焙对玉米秸秆组成成分、烘焙产率、化学结构及微观结构等理化特性及气化特性的影响,同时考察了玉米秸秆烘焙及气化过程中碱金属的迁移转化规律。结果表明,烘焙可有效提高玉米秸秆中固定碳含量,降低H/C、O/C。相较于惰性烘焙,有氧烘焙具有更好的提质效果,结合H/C、O/C、质量产率和能量产率发现,氧气体积分数为6%时较合适。烘焙玉米秸秆气化气中CO含量、气体产率及热值随烘焙气氛中氧气含量的增加呈先上升后下降的趋势,在氧气体积分数为6%时气化品质相对较好,此时气体组分中CO体积分数为14.73%、气体产率达到1.09 L/g、气体热值达到4.93 MJ/m3。烘焙过程中碱金属在玉米秸秆中富集,并促进部分水溶态钾向醋酸铵溶态钾转化,有助于气化过程中生成更多不溶态钾,且有氧烘焙促进作用更明显。研究结果可为生物质有氧烘焙提质及气化产气的技术推广提供基础数据及技术支持。

关键词：生物质有氧烘焙气化碱金属

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大球盖菇采后加工工艺研究进展及发展方向探讨

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中国食用菌 2024年第1期43卷 1-5页

作者：滑帆邢万里高义平保定市农业科学院河北保定071000 北京城市学院艺术设计学部北京100000

大球盖菇是联合国粮食及农业组织(Food and Agriculture Organization of the United Nations,FAO)向发展中国家推荐栽培的食用菌品种,其营养物质含量丰富、栽培技术简单、生产成本低、经济效益高。近年来,大球盖菇栽培技术在国内发展迅... 详细信息

大球盖菇是联合国粮食及农业组织(Food and Agriculture Organization of the United Nations,FAO)向发展中国家推荐栽培的食用菌品种,其营养物质含量丰富、栽培技术简单、生产成本低、经济效益高。近年来,大球盖菇栽培技术在国内发展迅速,市场前景广阔,但存在鲜品保存时间短、不易储存等问题,严重影响了产品的品质和销售。采用适宜的采后加工工艺可延长食用菌产品的保存期,拓宽销售渠道,均衡市场供应。通过对大球盖菇采后加工工艺的研究进展进行综述,并探讨其发展方向,为今后大球盖菇采后加工工艺的开发利用提供参考。

关键词：大球盖菇采后加工工艺研究进展

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知觉现象学视域下的中小学校园家具创新策略研究

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设计 2024年第5期37卷 104-106页

作者：周雨禾王玉珏邢万里北京城市学院云南艺术学院设计学院

知觉现象学作为重要的哲学思想和方法论,在设计领域有着广泛的影响力与指导作用,本文分析了知觉现象学的发展源流以及与家具设计关联性,在此基础上整理出我国中小学校园家具创新发展中“与空间语言相融合、与具身体验相弥合、修正离身... 详细信息

知觉现象学作为重要的哲学思想和方法论,在设计领域有着广泛的影响力与指导作用,本文分析了知觉现象学的发展源流以及与家具设计关联性,在此基础上整理出我国中小学校园家具创新发展中“与空间语言相融合、与具身体验相弥合、修正离身感知”三点需求,并提出“强化诗意营造、丰富感官体验、增进媒介交互”三点创新策略,以期为我国中小学校园家具的创新研究提供一定参考。

关键词：校园家具知觉现象学创新策略中小学知觉体验

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Detection of the apoptosis of Jurkat cell using an electrorotation chip

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Frontiers in Biology 2006年第2期1卷 208-212页

作者： Long Quan xing wanli Department of Biological Sciences and Biotechnology Tsinghua UniversityBeijing 100084China School of Medicine Tsinghua UniversityBeijing 100084China National Engineering Research Center for Beijing Biochip Technology Beijing 102206China

The apoptosis of cells is one of the fields that attract increasing attention in biology today.Usually,the cells are treated with chemicals when detecting apoptosis.It is highly desired to detect apoptosis in a real-time basis.Apoptosis of Jurkat cells was studied using a real-time electrorotation chip.This chip allows the detection of the cell membrane capacitance changes during the course of apoptosis and therefore facilitates the analysis of apoptosis in a real-time basis without involving any chemical treatment.

关键词： apoptosis electrorotation chip membrane capacitance

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基于ARIMA模型的环渤海典型城市生活垃圾产量预测研究

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环境工程技术学报 2022年第3期12卷 861-868页

作者：张万里郑永浩邢万丽李润东沈阳航空航天大学能源与环境学院

随着环渤海地区社会经济的快速发展,人口大幅增加,生活垃圾产量逐年递增,其造成的污染对城市发展和环境以及市民生活产生重大影响,准确预测生活垃圾产量对其后续处理与处置至关重要。对2005—2019年环渤海10个典型城市(天津、大连、营... 详细信息

随着环渤海地区社会经济的快速发展,人口大幅增加,生活垃圾产量逐年递增,其造成的污染对城市发展和环境以及市民生活产生重大影响,准确预测生活垃圾产量对其后续处理与处置至关重要。对2005—2019年环渤海10个典型城市(天津、大连、营口、盘锦、锦州、葫芦岛、滨州、潍坊、东营、烟台)生活垃圾产量现状进行分析,并通过MATLAB软件建立差分自回归移动平均(ARIMA)模型对2020—2024年城市生活垃圾产量进行预测。结果表明:2020—2024年,环渤海10个典型城市生活垃圾产量增长幅度和速度各不相同,但总体来看生活垃圾产量均呈增长趋势,与2005—2019年城市生活垃圾产量呈较为一致的增长趋势;2024年,天津、大连、营口、盘锦、锦州、葫芦岛、滨州、潍坊、东营、烟台10个典型城市生活垃圾产量分别为365.16万、278.65万、62.73万、30.34万、120.05万、49.81万、51.02万、81.41万、88.76万和137.68万t/a。

关键词：城市生活垃圾 ARIMA模型产量预测

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某钢框架-支撑连体结构抗震性能化分析

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建筑结构 2022年第S2期52卷 666-672页

作者：任沛琪杨赟邢万里丁井臻中国建筑标准设计研究院有限公司北京100048

安阳市游客集散中心项目采用钢框架-中心支撑结构体系,塔楼框架柱为钢管混凝土柱,东西塔楼在顶部三层采用钢桁架连体结构连接。简要介绍了该结构的主要特点和超限情况。根据不同的构件类型以及重要性程度制定了抗震性能化目标。采用YJK... 详细信息

安阳市游客集散中心项目采用钢框架-中心支撑结构体系,塔楼框架柱为钢管混凝土柱,东西塔楼在顶部三层采用钢桁架连体结构连接。简要介绍了该结构的主要特点和超限情况。根据不同的构件类型以及重要性程度制定了抗震性能化目标。采用YJK和MIDAS两种程序对结构进行小震弹性分析。采用YJK软件对结构进行中震性能化设计。采用PKPM-SAUSAGE软件对结构进行大震动力弹塑性时程分析,分析结果表明在罕遇地震下结构具有良好的耗能机制,弹塑性变形满足规范要求,结构和构件均达到了预期的性能目标。

关键词：钢框架-支撑结构连体性能化设计弹塑性动力时程分析

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