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Relationships between chemical elements of PM2.5 and O3 in Shanghai atmosphere based on the 1-year monitoring observation

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Journal of Environmental Sciences 2020年第9期32卷 49-57页

作者： Junyang Zeng luying Zhang Chuanhe Yao Tingting Xie Lanfang Rao Hui lu Xinchun Liu Qingyue Wang senlin lu School of Environmental and Chemical Engineering Shanghai UniversityShanghai 200444China Institute of Desert Meteorology China Meteorological AdministrationUrumqi 83002China School of Science and Engineering Saitama UniversitySaitama 338-8570Japan

Mass level of fine particles(PM2.5)in main cities in China has decreased significantly in recent years due to implementation of Chinese Clean Air Action Plan since 2013,however,03 pollution is getting worse than before,especially in megacities such as in *** this work,O3 and PM2.5 were continuously monitored from May 27,2018 to March 31,*** data showed that the annual average concentration of PM2.5 and O3(O3-8 hr,maximum8-hour moving average of ozone days)was 39.35±35.74 and 86.49±41.65μg/m3,*** concentrations of PM2.5 showed clear seasonal trends,with higher concentrations in winter(83.36±18.66μg/m3)and lower concentrations in summer(19.85±7.23μg/m3),however,the seasonal trends of O3 were different with 103.75±41.77μg/m3 in summer and58.59±21.40μg/m3 in *** mass backward trajectory,analyzing results of potential source contribution function model and concentration weighted trajectory model implied that pollutants from northwestern China contributed significantly to the mass concentration of Shanghai PM2.5,while pollutants from areas of eastern coastal provinces and South China Sea contributed significantly to the mass level of ozone in Shanghai *** concentration of twenty-one elements in the PM2.5 were investigated,and their relationships with O3 were *** level of ozone had good correlation with that of Ba(r=0.64,p0.05),suggesting vehicle emission pollutants contribute to the increasing concentration of ozone in Shanghai atmosphere.

关键词： pollution ozone elements

Size distribution of chemical elements and their source apportionment in ambient coarse, fine, and ultrafine particles in Shanghai urban summer atmosphere

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Journal of Environmental Sciences 2012年第5期24卷 882-890页

作者： senlin lu Rui Zhang Zhenkun Yao Fei Yi Jingjing Ren Minghong Wu Man Feng Qingyue Wang Shanghai Applied Radiation Institute School of Environmental and Chemical engineeringShanghai UniversityShanghai 201800China Graduate School of Science and Engineering Saitama University255 Shimo-OkuboSatura-KuSaitama CitySaitama 338–8570Japan

Ambient coarse particles （diameter 1.8-10 μm）, fine particles （diameter 0.1-1.8 μm）, and ultrafine particles （diameter 〈 0.1 μm） in the atmosphere of the city of Shanghai were sampled during the summer of 2008 （from Aug 27 to Sep 08）. Microscopic characterization of the particles was investigated by scanning electron microscopy coupled with energy dispersive X-ray spectroscopy （SEM/EDX）. Mass concentrations of Si, P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, As, Se, Br, Rb, Sr, and Pb in the size-resolved particles were quantified by using synchrotron radiation X-ray fluorescence （SRXRF）. Source apportionment of the chemical elements was analyzed by means of an enrichment factor method. Our results showed that the average mass concentrations of coarse particles, fine particles and ultrafine particles in the summer air were 9.38 ± 2.18, 8.82 ± 3.52, and 2.02 ± 0.41 μg/m3, respectively. The mass percentage of the fine particles accounted for 51.47% in the total mass of PM10, indicating that fine particles are the major component in the Shanghai ambient particles. SEM/EDX results showed that the coarse particles were dominated by minerals, fine particles by soot aggregates and fly ashes, and ultrafine particles by soot particles and unidentified particles. SRXRF results demonstrated that crustal elements were mainly distributed in the coarse particles, while heavy metals were in higher proportions in the fine particles. Source apportionment revealed that Si, K, Ca, Fe, Mn, Rb, and Sr were from crustal sources, and S, Cl, Cu, Zn, As, Se, Br, and Pb from anthropogenic sources. Levels of P, V, Cr, and Ni in particles might be contributed from multi-sources, and need further investigation.

关键词： airborne size-resolved particles chemical elements distribution source apportionment

Atmospheric HULIS and its ability to mediate the reactive oxygen species (ROS)： A review

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Journal of Environmental Sciences 2018年第9期30卷 13-31页

作者： Myat Sandar Win Zhengyang Tian Hui Zhao Kai Xiao Jiaxian Peng Yu Shang Minghong Wu Guangli Xiu senlin lu Shinich Yonemochi Qingyue Wang School of Environmental and Chemical Engineering Shanghai University Shanghai 200444 China East China University of Science and Technology (ECUST) Shanghai 200237 China Centers for Environmental Science in Saitama Saitama 374-0115 Japan School of Science and Engineering Saitama University Saitama 338-8570 Japan

Atmospheric humic-like substances （HULIS） are not only an unresolved mixture of macro- organic compounds but also powerful chelating agents in atmospheric particulate matters （PMs）; impacting on both the properties of aerosol particles and health effects by generating reactive oxygen spedes （ROS）. Currently, the interests of HULIS are intensively shifting to the investigations of HULIS-metal synergic effects and kinetics modeling studies, as well as the development of HULIS quantification, findings of possible HULIS sources and generation of ROS from HULIS. In light of HULIS studies, we comprehensively review the current knowledge of isolation and physicochemical characterization of HULIS from atmospheric samples as well as HULIS properties （hygroscopic, surface activity, and colloidal） and possible sources of HULIS. This review mainly highlights the generation of reactive oxygen species （ROS） from PMs, HULIS and transition metals, especially iron. This review also summarized the mechanism of iron-organic complexation and recent findings of OH formation from HULIS-metal complexes. This review will be helpful to carry out the modeling studies that concern with HULIS-transition metals and for further studies in the generation of ROS from HULIS-metal complexes,

关键词： Atmospheric HULIS Reactive oxygen species (ROS) Transition metals Characterization methods

Studies on relationships between air pollutants and allergenicity of Humulus Scandens pollen collected from different areas of Shanghai

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Journal of Environmental Sciences 2020年第9期32卷 43-48页

作者： senlin lu Chuanhe Yao Shumin Zhou Yichun Lin luying Zhang Junyang Zeng Lanfang Rao Wei Zhang Yafeng Dai Hong Li Weiqian Wang Qingyue Wang School of Environmental and Chemical Engineering Shanghai UniversityShanghai 200444China Lab of Plant Cell Biology Shanghai Key Laboratory of Bio-Energy CropsSchool of Life SciencesShanghai UniversityShanghai 200444China Shandong University of Science and Technology Qingdao 266590China Chinese Research Academy of Environmental Sciences Beijing 100021China School of Science and Engineering Saitama UniversitySaitama 338-8570Japan

Pollen pollution and allergy are becoming prominent issues in ***,few studies on pollinosis have been *** an allergen in the atmosphere,allergenic Humulus scandens pollen was collected from four districts of Shanghai,including Wusong(WS),Jiading(KD),Xujiahui(XJH) and Songjiang(SJ).The mass concentrations of SO2,NO2,O3,PM10,and PM2.5(particulate matter with air dynamic diameter less than 10 and 2.5 um,respectively) near the four sampling sites were also recorded during Humulus scandens pollen *** allergenicity of the Humulus scandens pollen was assessed by using of a rat model and enzyme linked immunosorbent assay(ELISA).Relationships between the allergenicity and air pollutants were *** results demonstrated that the biological viability of the pollens collected from the four districts exhibited no significant *** and dot blotting results further demonstrated that the serum of sensitized rats exhibited much higher immune-reactive response than that of control *** blotting showed that the 15 KD(1 KD=1000 dalton) proteins of Humulus pollen led to the allergic *** allergenic intensity of Humulus pollen protein from different samples followed the pattern:WS> JD> XJ> *** was a negative relationship between the allergenicity of Humulus pollens and PM10(R=-0.99)/PM2.5(R=-0.73),and a positive relationship with O3(R=0.92).These data clearly showed that PM10 and PM2.5 could enhance Humulus pollen protein release,and 03 could aggravate the allergenicity of the Humulus pollen.

关键词： (ELISA) pollution China.

The Study on Improving the Health Condition through Sports

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International Journal of Technology Management 2015年第6期 113-115页

作者： senlin lu Yi HUAI Jiangxi Science & Technology Normal University NanchangJiangxiChina

In the 1990s, China began to develop mass sports, it is committed to improving the health condition, and it will improve the sport as an important form of universal health. While national sports development, China＇ s sports begin to flourish and have achieved remarkable record. For example, in the just-concluded 2014, in the Incheon Asian Games, China has made a total score first. This shows that sports have become an important part of national development to be reckoned with. With economic development, the accelerated pace of life is by the people neglect their own physical exercise, so that declining physical fitness, health groups continues to grow. So how in the development of sports at the same time, ensure the health sciences to improve the health condition. This paper discusses this correlation.

关键词： Sports Fitness Research

维普期刊数据库评论

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新型馈能型悬架及其工作原理

机械工程学报 2007年第11期43卷 177-182页

作者：陈士安何仁陆森林江苏大学汽车与交通工程学院镇江212013

为回收汽车悬架间被减振器消耗的振动能量,提出一种集减振与回收振动能量功能于一体的新型馈能型悬架,并研究该新型馈能型悬架的工作原理。首先对馈能型悬架的关键部件——馈能装置的力学特性进行理论分析与试验测定。通过解析馈能装置... 详细信息

为回收汽车悬架间被减振器消耗的振动能量,提出一种集减振与回收振动能量功能于一体的新型馈能型悬架,并研究该新型馈能型悬架的工作原理。首先对馈能型悬架的关键部件——馈能装置的力学特性进行理论分析与试验测定。通过解析馈能装置作用在簧载质量上的馈能阻尼力得知:馈能装置的力学特性由其结构确定的粘性阻尼参数和类似库伦阻尼参数体现。进而建立馈能型悬架的动力学模型,并在汽车以72km/h的速度行驶于C级路面的随机输入条件下对其进行数值仿真。仿真结果显示:馈能型悬架吸收发动机的平均功率略小于被动悬架,但有高达84%的吸收功率被馈能装置回收;馈能型悬架的使用性能也明显优于被动悬架,说明使用馈能型悬架来改善汽车的行驶平顺性和燃油经济性在理论上是可行的。

关键词：汽车悬架馈能型悬架力学特性数值仿真

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馈能型悬架的工作原理与结构方案评价

农业机械学报 2006年第5期37卷 5-9页

作者：何仁陈士安陆森林江苏大学汽车与交通工程学院

为了回收汽车车轴与簧载质量间的振动能量,提出一种既可以改善汽车的行驶平顺性又可以回收振动能量的悬架,称之为馈能型悬架。研究了几种馈能装置的工作原理,利用模糊综合评价方法对馈能型悬架的结构方案进行了评价,结果显示静液式馈能... 详细信息

为了回收汽车车轴与簧载质量间的振动能量,提出一种既可以改善汽车的行驶平顺性又可以回收振动能量的悬架,称之为馈能型悬架。研究了几种馈能装置的工作原理,利用模糊综合评价方法对馈能型悬架的结构方案进行了评价,结果显示静液式馈能型悬架以显著差异的优势成为最可行的馈能型悬架结构方案。

关键词：汽车馈能型悬架工作原理结构方案模糊综合评价

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馈能型悬架综合性能评价体系

农业机械学报 2006年第7期37卷 14-18页

作者：陈士安何仁陆森林江苏大学汽车与交通工程学院

根据车辆平顺性的3个评价指标以及悬架节能性能,利用主观评价法和客观评价法各自的优点,建立了馈能型悬架综合性能评价体系。根据各评价指标的重要性,利用层次分析法,确定它们的主观权重;根据各评价指标的性能统计数据,利用熵值法,确定... 详细信息

根据车辆平顺性的3个评价指标以及悬架节能性能,利用主观评价法和客观评价法各自的优点,建立了馈能型悬架综合性能评价体系。根据各评价指标的重要性,利用层次分析法,确定它们的主观权重;根据各评价指标的性能统计数据,利用熵值法,确定它们的客观权重;综合主观权重与客观权重,确定各评价指标的最终权重;最后根据各评价指标的最终权重与性能统计数据计算馈能型悬架综合性能的评价值。该评价体系以逐次淘汰的方式求优,通过最小的评价值与最优的馈能型悬架综合性能相对应的方式评选出最优的悬架参数方案,该体系条理性强,评选结果准确,便于计算机编程使用。

关键词：车辆馈能型悬架平顺性节能性能评价体系

Magnetic properties and elements of dust in China and Japan

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Magnetic properties and elements of dust in China and Japan