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Ensemble source apportionment of particulate matter and volatile organic compounds and quantifying ensemble source impacts on ozone

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Journal of Environmental Sciences (China) 2025年 157卷 534-545页

作者： Liang, Weiqing Wang, Zhenyu Zhao, Dongheng Liu, Jinxing Ma, Tong Feng, Yinchang Shi, Guoliang State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control Tianjin Key Laboratory of Urban Transport Emission Research College of Environmental Science and Engineering Nankai University Tianjin300350 China College of Environmental Science and Engineering Nankai University Tianjin300350 China State Key Laboratory of Precision Measuring Technology and Instruments Tianjin Environmental Monitoring Technology Enterprise Key Laboratory School of Precision Instrument and Optoelectronics Engineering Tianjin University Tianjin300072 China Co. Ltd. Tianjin300072 China Chinese Research Academy of Environmental Sciences Beijing100012 China

Serious fine particulate matter (PM2.5) pollution and rapidly increasing of ground-level ozone (O3) concentrations are concern issues in China. To achieve the comprehensive control of PM2.5-O3 composite air pollution, exploring the common sources of PM2.5 and VOCs is essential. However, previous researches most carried out either PM2.5 or VOCs source appointment. In this study, we applied the ensemble source apportionment method to explore the impacts of common sources on PM2.5-VOCs. Subsequently, we obtained the ensemble source impacts on O3 combining the extracted VOCs source profile and ozone formation potential. We found that the focus of environmental management and source control should be varied accordingly for different pollutants. Vehicle emission was the largest contributor (41 %) to PM2.5-VOCs, while industrial emission was the main common source (51 %) to O3. The result showed that the O3 production rate is not only related to the VOCs emission, but also to the reactivity of VOCs. In addition, sensitivity tests revealed that temperature was the main factor affecting O3 formation. The study provides a framework to explore the common sources impact on PM2.5 and VOCs, which is benefit to address both PM2.5 and O3 mitigations. © 2024

关键词： Emission control

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Characteristics of Various Freight Categories transported on Expressway in China

Characteristics of Various Freight Categories Transported on...

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International Conference on SmartRail, Traffic, and transportation Engineering, ICSTTE 2023

作者： Song, Yuanyuan Lan, Ziye Wu, Rui Xu, Honglei Zhu, Pengpeng Ministry of Transport Transport Planning and Research Institute Beijing China Laboratory of Transport Pollution Control and Monitoring Technology TPRI Beijing China Queen’s University of Belfast QUB Belfast United Kingdom

ISBN: (纸本)9789819736812

The study explores the characteristics of various freight categories transported on cross-provincial expressways. Based on the charge data from toll stations, the survey on freight categories transported on expressways was performed for K-prototypes clustering analysis and the characteristics of various freight categories transported on expressway were analyzed in terms of freight volume, transportation distance and freight flow. The analysis results showed that the freight with long transportation distance, large freight volume, low specialization degree of transportation vehicle, and high degree of delivery concentration accounted for a large proportion of bulk freight transported by expressways, whereas the freight with short transportation distance, small freight volume, high specialization degree of transportation vehicle, and low degree of delivery concentration accounted for a large proportion of the freight with high added values. The results can be used to guide the identification of the freight categories suitable for railway transportation and provide the theoretical basis and decision-making references for continuous adjustment and optimization of transportation structure. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Railroads

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Measures and Suggestions for Ecological Restoration of Highway Slopes in the Context of Green Highway in China 3

Measures and Suggestions for Ecological Restoration of Highw...

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3rd International Conference on Green Energy, Environment and Sustainable Development, GEESD 2022

作者： Li, Qili Zhu, Gaoru Liu, Jie Laboratory of Transport Pollution Control and Monitoring Technology Transport Planning and Research Institute Ministry of Transport Beijing100028 China

ISBN: (纸本)9781643683126

To practice green development in highway construction and improve the theory slope ecological restoration, this paper analyzes the connotation characteristics and idea of green highway, and puts forward the needs and management suggestions of green highway idea for slope ecological restoration. The results show that: (1) the ecological restoration of highway slope should adapt to the needs of green highway development in the new period from five aspects: optimizing design, intensive using of resources, adopting different repair techniques, considering the life cycle costs and building beautiful highways. (2) The high-quality development of ecological restoration of highway slopes can promote from four types of initiatives: encouragement, compulsiveness, recommendation and guidance. The research results provide guidance and strategy for develops slope ecological restoration, which is conducive to promoting the transportation industry to practice green development and ecological civilization strategy. © 2022 The authors and IOS Press.

关键词： Restoration

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Study on the Technical and Policy Pathway for Low-Carbon Development of the Water transportation in Sichuan Province 10th

Study on the Technical and Policy Pathway for Low-Carbon Dev...

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10th PIANC Smart Rivers Conference, Smart Rivers 2022

作者： Zhang, Yonglin Zheng, Chaohui Li, Yue Zhang, Liguo Cheng, Jinxiang Li, Mingjun Transport Planning and Research Institute Ministry of Transport Beijing China Laboratory of Transport Pollution Control and Monitoring Technology Beijing China

ISBN: (纸本)9789811961373

transport, one of the key sectors for the implementation of China’s carbon peak and carbon neutrality goals, boasts a water transportation crucial to China’s integrated transport infrastructure, which will face a rising demand with the continuous optimization of the transport system. Located upstream of the golden waterway of the Yangtze River, Sichuan province is one of the key regions for inland waterway transportation. In the context of the ‘dual carbon’ goals, the study proposes a conceptual framework for the low-carbon development pathway of water transport by analyzing the technical roadmap and policy recommendations for the Sichuan Province, which found that Sichuan can rely upon energy efficiency and energy substitution on the technical front, while upon the synergy of "government guidance + enterprise responsibility + market support + partnership". While focusing on slowing the growth of CO2 emissions and improving energy efficiency with LNG as the main transition fuel in the near term, Sichuan should curb the total emissions and strategize around carbon-free solutions including electricity and hydrogen. © 2023, The Author(s).

关键词： Energy efficiency

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City level CO_(2) and local air pollutants co-control performance evaluation: A case study of 113 key envir on mental protection cities in China

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Advances in Climate Change Research 2022年第1期13卷 118-130页

作者： Qing-Yong ZHANG Bo-Feng CAI Mu-Dan WANG Jun-Xia WANG You-Kai XING Guang-Xia DONG Zhen ZHANG Xian-Qiang MAO School of Environment Beijing Normal University'Beijing 100875China Center for Climate Change and Environmental Policy Chinese Academy of Environmental PlanningBeijing 100012China China National Environmental Monitoring Centre Beijing 100012China Ministry of Transport Transport Planning and Research InstituteLaboratory of Transport Pollution Control and Monitoring TechnologyBeijing 100028China

‘Co-control',or synergistically reducing CO_(2)and local air polluta nt emissions,is an important strategy for cities to achieve'low carb on'and'blue sky'***,there were few studies to evaluate and compare the level of co-control of CO_(2) and local air pollutants in cities *** present study proposed qualitative and quantitative methods to evaluate the level of co-control of CO_(2)and three local air pollutant(SO_(2).NOX,and particulate matter PM)emissions in key environmental protection cities in China over two periods(2012-2015 and 2015-2018).Statistical analysis found that,though three local air pollutant emissions positively correlated with CO_(2) emission,no significantly positive correlation was found between local air pollutants emission reductions and CO_(2) emission reductions,indicating that co-control effects were poor in *** using the co-control effect coordinate system,qualitative evaluation showed that less than half of the sample cities could achieve co-control of the total amount of CO_(2) and local air *** employing the indicator of emission reduction equivalence(EReq),quantitative evaluation showed that the co-control level of the sample cities improved in 2015-2018 compared with *** regression analysis showed that,reducing coal consumption and economic development significantly enhanced the co-control performance of the observed *** present case study proved that the proposed methods for evaluation and comparison of the city co-control performance works well,and can be used in other countries and regions to promote global cities racing to carbon and local air pollutants co-control.

关键词： Co-control CO_(2)emission reduction Local air pollutant emission reduction:Performance evaluation Key environmental protection cities

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Land development suitability analysis for transport planning evaluation and optimization in mountainous ecological region

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Journal of Mountain Science 2022年第3期19卷 862-873页

作者： ZHU Gao-ru WANG Man LI Qi-li LIU Jie ZHAO Yan-ni GAO Jia-wei XU Hong-lei Laboratory of Transport Pollution Control and Monitoring Technology Transport Planning and Research InstituteMinistry of TransportBeijing 100028China College of Urban and Environmental Sciences Peking UniversityBeijing 100871China Key Laboratory for Environmental and Urban Sciences School of Urban Planning&DesignShenzhen Graduate SchoolPeking UniversityShenzhen 518055China

transportation planning is a critical component for creating an orderly,intensive,and sustainable pattern of land *** comprehensively considering the potential and suitability of transport construction,a comprehensive method combining resources and environmental carrying capacity(RECC)and land development suitability(LDS)was developed by using techniques of GIS,analytic hierarchy process(AHP)and threedimensional magic *** Aba prefecture in Sichuan Province of Southwest China as a case study,LDS for transportation was analyzed from three aspects,including overall planning layout,different transport modes,and transportation *** results showed that the transport planning scales of most counties in Aba were suitable,and the order of LDS of different transport modes was railway>highway=superhighway>tourism track,which already included 42 new transportation *** found that two counties(Maoxian County and Jiuzhaigou County)should improve the ecological protection level of transportation,in which the railway network construction should be encouraged,and some transportation projects with low LDS should be postponed or constructed *** suggest the combination of RECC and LDS for transportation could enhance the territorial space optimization and sustainable transport construction.

关键词： Land development suitability Resources and environment carrying capacity transport planning Evaluation Optimization Spatial analysis Mountainous ecological region

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An Optimization Model for the Regional Freight Structure

An Optimization Model for the Regional Freight Structure

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2023 International Conference on Smart transportation and City Engineering, STCE 2023

作者： Song, Yuanyuan Wang, Renjie Liu, Shengqiang Wu, Rui Transport Planning and Research Institute Ministry of Transport Beijing100028 China Laboratory of Transport Pollution Control and Monitoring Technology Beijing100028 China Beijing Jiaotong University Beijing100044 China

ISBN: (纸本)9781510673540

transport structure adjustment is an important means for collaborative emission reduction of greenhouse gases and conventional pollutants. In this paper, for the regional freight structure optimization, a multimodal freight network is built, the transport utility function is analyzed, a model for multi-objective regional freight structure optimization is built, Beijing-Tianjin-Hebei region is taken as an example, and the factors (e.g., the freight demand in the future years, the policy orientation for freight development, the development scales of various freight modes in the future) are taken as the constraint conditions to determine the feasible region of freight structure, build a model for multi-objective freight structure optimization with the minimum carbon emission and the maximum transport utility, and obtain the optimal freight structure in the year of carbon peaking and carbon neutrality goals, thus providing feasible ideas and methods for the sustainable development of the transport system. © 2024 SPIE.

关键词： Multiobjective optimization

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Freight transportation Demand Forecast and Structural Adjustment in Yangtze River Delta

Freight Transportation Demand Forecast and Structural Adjust...

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2022 International Conference on Smart transportation and City Engineering, STCE 2022

作者： Song, Yuanyuan Liu, Shengqiang Wu, Rui Xing, Youkai Wang, Renjie Transport Planning and Research Institute Ministry of Transport Beijing100028 China Laboratory of Transport Pollution Control and Monitoring Technology Beijing100028 China Beijing Jiaotong University Beijing100044 China

ISBN: (纸本)9781510660250

This paper systematically sorted out the changing trend of the industrial structure, energy structure and transportation structure in the Yangtze River Delta region, comprehensively analyzed the impact of future economic and social development on freight demand, predicted the future evolution trend of freight demand in the Yangtze River Delta region, and put forward relevant work suggestions for the optimization of freight transport structure in the Yangtze River Delta region. © 2022 SPIE.

关键词： Freight transportation

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Influence of Different Test Cycles on the CO2Emission Factor of Light Gasoline Vehicles 7

Influence of Different Test Cycles on the CO2Emission Factor...

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7th International Conference on Power and Energy Engineering, ICPEE 2023

作者： Wu, Rui Yang, Daoyuan Zhang, Hao Xu, Hang Transport Planning and Research Institute Ministry of Transport Laboratory of Transport Pollution Control and Monitoring Technology Beijing China Co. Ltd. China Automotive Technology Research Center Co. LTD Tianjin China

ISBN: (纸本)9798350381146

Emission factor is an important fundamental parameter for measuring the carbon dioxide (CO2) emissions of light gasoline vehicles. However, there are differences in the CO2emission factors calculated from emission data obtained under different test cycles. To investigate the impact of different test cycles on CO2emission factors for light gasoline vehicles, this study conducted an in-depth analysis based on the China light-duty vehicle test cycle (CLTC), the Worldwide harmonized light vehicles test cycle (WLTC), and the real driving emission test cycle (RDE). The vehicle specific power (VSP) and vehicle speed are utilized as the characterization parameters for the micro-scale operation mode of vehicles. Based on this, the Bin intervals are divided to construct Bin intervals that conform to the normal distribution. CO2emission data for 6 light gasoline vehicles under C TC, WLTC, and RDE are used to investigate the impact of different test cycles on CO2emission factors for light gasoline vehicles. The study found that the "CLTC-only"CO2mission factor and "WLTC-only"CO2emission factor are lower than the "RDE-only"CO2baseline emission factor. © 2023 IEEE.

关键词： Carbon dioxide

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Research on Theoretical Framework and Implementation Path of Green Maintenance of Inland Waterway 10th

Research on Theoretical Framework and Implementation Path of...

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10th PIANC Smart Rivers Conference, Smart Rivers 2022

作者： Han, Zhaoxing Zheng, Chaohui Jiang, Wenxi Cheng, Jinxiang Zhang, Liguo Transport Planning and Research Institute Ministry of Transport Beijing100028 China Tsinghua University Beijing100084 China Ministry of Transport Laboratory of Transport Pollution Control and Monitoring Technology Transport Planning and Research Institute Beijing100028 China

ISBN: (纸本)9789811961373

Inland waterway maintenance could guarantee channel dimension and maintain navigation conditions. With the continuous increase of channel mileage, inland waterway maintenance gradually became more frequent and scale-up, as well. The maintenance activities would inevitably cause adverse environment impacts on waters, and disturb the ecosystem. Therefore, it was necessary to implement the green maintenance to reduce the negative impacts in the maintenance process. However, the research on green maintenance of inland waterway was not systematic and impeccable. This paper proposed a solution for the problem above. Firstly identified the environmental impacts of maintenance based on the analysis of maintenance process. Secondly the notion and principles of green maintenance are put forward, according to the concept of green transportation and green channel. Thirdly, the study constructed the technical framework of green maintenance and summarized the major measures for green maintenance. An last, implementation path of green maintenance was addressed including standard-setting, establishing system management, technology research and development, etc. © 2023, The Author(s).

关键词： Maintenance

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