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第二十七届大气污染防治技术研讨会

作者： Taikui An Yingjie Li State Environmental Protection Key Laboratory of Formation and Prevention of Urban Air Pollution Complex Shanghai Academy of Environmental Sciences

To ensure good air quality during the China International Import Expo（CIIE） episode, a series of emission-reduction measures were implemented in Shanghai and its neighboring regions. However, little information has been reported on the impacts of these measures on atmospheric I/SVOCs. To assess the effectiveness of these temporary measures, this paper explored four typical categories of I/SVOCs, including alkanes, PAHs, benzothiazole（BTH） and chlorobenzenes（CBs）, at an urban site of Shanghai before and during two CIIE episodes（2019 and 2020;non-CIIE versus CIIE）;their secondary organic aerosol（SOA） production was estimated based on the photochemical-age-based parameterization;and five possible emission sources of I/SVOCs was analyzed by positive matrix factorization（PMF）.Average concentrations of the most concerned alkanes and PAHs during both two CIIE periods decreased by ～41% and ～17%, respectively, compared to non-CIIE periods. However, during CIIE-2020, the concentrations of CBs and BTH didn't decrease as expected. The SOA production from alkanes, PAHs and BTH together was 671±446 ng/m under atmospheric conditions, and significant secondary organic aerosol（SOA） formation potential of dimethylnaphthalenes and BTH was firstly reported. The source apportionment suggested that gasoline-vehicles（31.5%）, life-related sources（21.6%）, diesel-related emissions（20.8%）, industrial sources（18.6%） and ship emissions（7.5%） were important source of I/SVOCs, especially for the non-ignorable contribution of life-related sources. Our results provide valuable insights into the effectiveness of the measures implemented during the CIIE and highlight more speciated I/SVOCs and life-related sources should be considered for further research and policy action.

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On the optimality of Kalman filter for fault detection 4

On the optimality of Kalman filter for fault detection

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4th IEEE International Conference on Digital Twins and Parallel Intelligence, DTPI 2024

作者： Zhou, Jinming Zhu, Yucai Yang, Chao Zhu, Yun Yin, Feng Zhejiang University State Key Laboratory of Industrial Control Technology College of Control Science and Engineering Hangzhou310027 China Zhejiang University State Key Lab of Clean Energy Utilization State Environmental Protection Center for Coal-Fired Air Pollution Control Hangzhou310027 China Zhejiang Baima Lake Laboratory Co. Ltd Hangzhou310051 China

ISBN: (纸本)9798350349252

Kalman filter is widely used for residual generation in fault detection. It leads to optimality in fault detection using some performance indices and also leads to statistically sound residual evaluation and threshold setting. This paper shows that these nice features do not necessarily imply an optimal fault detection performance. Based on a performance index related to fault detection rate and false alarm rate, several occasions where Kalman filter should not be used are pointed out;further the residual evaluation and threshold setting are discussed, in which it is pointed out that in stochastic setting an optimal statistical test of Kamlan filter is not related to optimality of commonly used detection performance indicators. The theoretical analysis is verified through Monte Carlo simulations and Tennessee Eastman process (TEP) dataset. © 2024 IEEE.

关键词： Kalman filters

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Practice and Thinking on Current Planning environmental Impact Assessment of Transmission and Transformation Power Grid in Jiangsu Province

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Meteorological and environmental Research 2014年第1期5卷 44-48页

作者： Wang Sheng Wang Huimin Zhu Fahua Qiu Lei Liu Gang State Key Laboratory of Hydrology-Water Resource and Hydraulic Engineering Hohai University State Power Environmental Protection Research Institute State Environmental Protection Key Laboratory of Atmospheric Physical Modeling and Control of Air Pollution

The planning environmental impact assessment （EIA） of transmission and transformation power grid at levels of 500 and 220 kV had been finished completely in the 13 municipalities of Jiangsu Province by the end of 2012, which played important roles in guiding and planning the following transmission and transformation projects in environmental protection. In this paper, through the detail analysis on the objective and significance of the planning EIA of transmission and transformation power grid, legal basis and planning EIA practices, some suggestions and thinking about the planning EIA of transmission and transformation power grid were put forward.

关键词： Jiangsu Province Power grid Planning environmental impact assessment Current status China

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The role of geographic distances in green industrial pilot policies evaluation: A sustainability transition perspective

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environmental Science and pollution Research 2024年第50期31卷 60485-60502页

作者： Chen, Luyi Chang, Yue Ruan, Xinhui Shanghai Research Center for Reform and Development of State-Owned Assets and State-Owned Enterprises Shanghai China Zhejiang Development & amp Planning Institute Zhejiang Hangzhou310005 China State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing100085 China State Key Lab of Clean Energy Utilization State Environmental Protection Engineering Center for Coal-Fired Air Pollution Control Zhejiang University 38 Zheda Road Hangzhou310027 China

Green industrial policies (GIPs) aim to promote the adoption of green technology within a sustainability framework. While previous evaluations of GIP have focused more on the policy itself and the impacts within the policy boundaries, this paper further introduces the geographical factor to analyze the impact of different spatial geographic distances on implementing GIP. By integrating geographic distances into a spatial difference-in-differences analysis to assess the effects of municipal green industry policies (referred to as green industry pilot policies in this paper) enacted in 11 cities in China from 2006 to 2010, we find that these policies not only improve environmental and economic outcomes in targeted regions but also have spillover effects that may affect neighboring areas negatively, highlighting the importance of geographic considerations. The effectiveness of green industrial policies varies across cities, influenced by local socio-technical systems and regional characteristics such as infrastructure and information technology. These findings suggest that policy impacts are complex and multifaceted, requiring a comprehensive understanding of geographic interdependencies. By incorporating geographic factors, this research contributes to sustainability transition theory by offering insights into the spatial and temporal dynamics of socio-technical systems. The results underscore the need for policymakers to consider spatial-temporal aspects and potential secondary effects on adjacent regions when designing and implementing green industrial policies. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.

关键词： Green development

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Experimental Investigation of Particles Dynamics and Solid-Liquid Mixing Uniformity in a Stirred Tank

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Fluid Dynamics & Materials Processing 2024年第11期20卷 2585-2602页

作者： Kai Yang Qinwen Yao Yingshan Li Wanchang Chen Saleh Khorasani Hua Wang Qingtai Xiao State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization Kunming University of Science and TechnologyKunming650093China Faculty of Metallurgical and Energy Engineering Kunming University of Science and TechnologyKunming650093China Department of Mechanical Engineering Faculty of EngineeringUrmia University of TechnologyUrmia***Iran State Environmental Protection Key Laboratory of Mineral Metallurgical Resources Utilization and Pollution Control Ministry of Ecology and EnvironmentWuhan430081China

Particle suspension and deposition dynamics are significant factors affecting the level of mixing quality in solidliquid two-phase stirring processes. In general, the ability to increase the suspension rate and minimize depositioneffects is instrumental in improving the uniformity of particle mixing, accelerating the reaction of involved solidliquid two-phase, and improving the efficiency of production operations. In this work, suspension and depositionindicator based on the Betti number and a uniformity indicator are introduced and obtained by means of imageanalysis. The influence of the blade type, rotation speed, blade diameter and blade bottom height on the particlesuspension/deposition characteristics and mixing uniformity are carefully investigated. The experimental resultsshow that the two-phase motion region can be divided into three local regions, including a bottom motion alongthe wall, a low-degree suspension region under the blade and a high suspension region above the blade. The bestdegree of particle suspension is attained by the double-inclined blade paddle at a speed of 270 r/min, a paddlediameter ratio of 0.414, and a height-diameter ratio of 0.086. The double-inclined blade paddle has a better effecton promoting particle suspension and solid-liquid two-phase mixing uniformity.

关键词： Solid-liquid particle suspension mixing uniformity Betti number paddle types

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我国大气污染治理的进展与生态文明时代的机遇和挑战

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Engineering 2020年第12期6卷 198-216页

作者：鲁玺张少君邢佳王韵杰陈文会丁点吴烨王书肖段雷郝吉明 State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex

中国过去的经济增长在很大程度上依赖于化石燃料消费,因此造成了严重的空气污染问题。解决经济增长与污染改善之间的矛盾已成为我国发展生态文明的关键。本文分析了我国近30年来大气污染治理的历程,指明了从排放控制到质量管理这一战略... 详细信息

中国过去的经济增长在很大程度上依赖于化石燃料消费,因此造成了严重的空气污染问题。解决经济增长与污染改善之间的矛盾已成为我国发展生态文明的关键。本文分析了我国近30年来大气污染治理的历程,指明了从排放控制到质量管理这一战略转变的重要意义。"十一五"期间,二氧化硫(SO)排放总量控制遏制了中国酸雨问题日益恶化的态势。2013年以来,我国制定了以降低细颗粒物(PM)浓度为大气污染治理的主要目标,开展了针对多个行业、多种大气污染物的综合治理行动,标志着中国向以空气质量为导向的战略转变。针对目前日益加剧的臭氧(O)污染,急需科学厘清PM和O污染控制之间复杂的相互作用关系,实施有效的污染协同控制策略。作为成功建设生态文明的关键性指标,中国空气质量的根本改善要求今后中国能源系统深度降碳,并且能够寻求更多的协同途径,从而同时改善空气质量和应对气候变化。

关键词：大气污染治理生态文明细颗粒物低碳发展臭氧

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New insights into the formation of ammonium nitrate from a physical and chemical level perspective

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Frontiers of environmental Science & Engineering 2023年第11期17卷 209-221页

作者： Yuting Wei Xiao Tian Junbo Huang Zaihua Wang Bo Huang Jinxing Liu Jie Gao Danni Liang Haofei Yu Yinchang Feng Guoliang Shi State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control Tianjin Key Laboratory of Urban Transport Emission ResearchCollege of Environmental Science and EngineeringNankai UniversityTianjin 300350China CMA-NKU Cooperative Laboratory for Atmospheric Environment-Health Research(CLAER) College of Environmental Science and EngineeringNankai UniversityTianjin 300350China Institute of Resources Utilization and Rare Earth Development Guangdong Academy of SciencesGuangzhou 510650China Guangzhou Hexin Instrument Co.Ltd. Guangzhou 510530China State Key Laboratory of Precision Measuring Technology and Instruments Tianjin Key Laboratory of Air pollutants Monitoring TechnologySchool of Precision Instrument and Opto-electronics EngineeringTianjin UniversityTianjin 300072China Gigantic Technology(Tianjin)Co.Ltd. Tianjin 300384China Department of Civil Environmental and Construction EngineeringUniversity of Central FloridaOrlandoFL32816USA

High levels of fine particulate matter(PM_(2.5))is linked to poor air quality and premature deaths,so haze pollution deserves the attention of the *** abundant inorganic components in PM_(2.5),ammonium nitrate(NH_(4)NO_(3))formation includes two processes,the diffusion process(molecule of ammonia and nitric acid move from gas phase to liquid phase)and the ionization process(subsequent dissociation to form ions).In this study,we discuss the impact of meteorological factors,emission sources,and gaseous precursors on NH4NO3 formation based on thermodynamic theory,and identify the dominant factors during clean periods and haze *** show that aerosol liquid water content has a more significant effect on ammonium nitrate formation regardless of the severity of *** dust source is dominant emission source in clean periods;while a combination of coal combustion and vehicle exhaust sources is more important in haze *** the control of ammonia emission is more effective in reducing the formation of ammonium *** findings of this work inform the design of effective strategies to control particulate matter pollution.

关键词： Ammonium nitrate formation Thermodynamic theory Aerosol liquid water content Source apportionment

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Vertical profiles of biogenic volatile organic compounds as observed online at a tower in Beijing

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Journal of environmental Sciences 2020年第9期32卷 33-42页

作者： Huina Zhang Yanli Zhang Zhonghui Huang WJoe FActon Zhaoyi Wang Eiko Nemitz Ben Langford Neil Mullinger Brian Davison Zongbo Shi Di Liu Wei Song Weiqiang Yang Jianqiang Zeng Zhenfeng Wu Pingqing Fu Qiang Zhang Xinming Wang State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China Center for Excellence in Regional Atmospheric Environment Institute of Urban Environment Chinese Academy of SciencesXiamen 361021China University of Chinese Academy of Sciences Beijing 100049China State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment and Guangdong Key Laboratory of Water and Air Pollution Control South China Institute of Environmental ScienceMinistry of Ecology and EnvironmentGuangzhou 510655China Lancaster Environment Centre Lancaster UniversityLancaster LA14YQUK Centre for Ecology and Hydrology Edinburgh EH260QBUK School of Geography Earth and Environmental Sciences University of BirminghamBirmingham B152TTUK Institute of Surface-Earth System Science Tianjin UniversityTianjin 300072China Institute of Atmospheric Physics Chinese Academy of SciencesBeijing 100029China Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China

Vertical profiles of isoprene and monoterpenes were measured by a proton transfer reactiontime of flight-mass spectrometry(PTR-ToF-MS) at heights of 3,15,32,64,and 102 m above the ground on the Institute of Atmospheric Physics(IAP) tower in central Beijing during the winter of 2016 and the summer of *** mixing ratios were larger in summer due to much stronger local emissions whereas monoterpenes were lower in summer due largely to their consumption by much higher levels of *** mixing ratios were the highest at the 32 m in summer(1.64±0.66 ppbV) and at 15 m in winter(1.41±0.64 ppbV) with decreasing concentrations to the ground and to the 102 m,indicating emission from the tree canopy of the surrounding *** mixing ratios were the highest at the 3 m height in both the winter(0.71±0.42 ppbV) and summer(0.16±0.10 ppbV) with a gradual decreasing trend to 102 m,indicting an emission from near the ground *** lowest isoprene and monoterpene mixing ratios all occurred at 102 m,which were 0.71±0.42 ppbV(winter) and 1.35±0.51 ppbV(summer) for isoprene,and 0.42±0.22 ppbV(winter) and0.07±0.06 ppbV(summer) for *** in the summer and monoterpenes in the winter,as observed at the five heights,showed significant mutual *** the winter monoterpenes were positively correlated with combustion tracers CO and acetonitrile at 3 m,suggesting possible anthropogenic sources.

关键词： winter Vertical mixing

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An Acid Rain–Friendly Nh3 control Strategy to Maximize Benefits Toward Human Health and the Ecosystem

SSRN

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SSRN 2022年

作者： Dong, Zhaoxin Wang, Shuxiao Jiang, Yueqi Xing, Jia Ding, Dian Zheng, Haotian Hao, Jiming State Key Joint Laboratory of Environmental Simulation and Pollution Control School of Environment Tsinghua University Beijing100084 China State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Beijing100084 China Institute for Atmospheric and Earth System Research/Physics Faculty of Science University of Helsinki Helsinki00014 Finland

Ammonia (NH3) abatement remains controversial in China owing to its effectiveness in reducing PM2.5 pollution and nitrogen deposition but with the potential risk of promoting acid rain formation, necessitating scientific guidance. Here, we propose a novel method for designing an NH3 control strategy to mitigate both air pollution and nitrogen deposition without significantly exacerbating acid rain. This method involves extending the response surface model (RSM) to deposition using a delicately developed polynomial response function of deposition (i.e., dep-RSM). The Yangtze River Delta (YRD) dep-RSM application reveals that 16 out of 41 cities have NH3 control potentials from 15% to 71%. Excellent NH3 control potentials have been noted between April and June (78%–92%). From 2013 to 2017, the effective SO2 and NOx control significantly reduced wet sulfur and oxidized nitrogen deposition, providing considerable NH3 abatement potentials (15%–24%) to further reduce PM2.5 and nitrogen deposition by up to 2% and 9%, respectively, without acid rain exacerbation (the wet neutralization factor was maintained). Additionally, 57% and 73% NH3 emission reduction potentials were obtained under acid rain constraints with 75% and 86% reductions in the other precursors to reduce the average PM2.5 concentration below 25 and 15 µg/m3, and an additional 8408 and 14459 premature deaths could only be avoided at an extra cost of 8.7 and 19.7 billion CNY, respectively. Meanwhile, the N deposition considerably reduced by 10 and 13 kgN/ha·yr. However, the YRD region could still simultaneously obtain substantial amounts of PM2.5 and N deposition mitigation using the strategy proposed herein. The expanded optimization system can be directly adopted by policymakers to implement coordinated control in regions or countries facing the same NH3 control conundrum. © 2022, The Authors. All rights reserved.

关键词： Ammonia

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Investigating the Transport Mechanism of PM2.5 pollution during January 2014 in Wuhan, Central China

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Advances in Atmospheric Sciences 2019年第11期36卷 1217-1234,I0012-I0017页

作者： Miaomiao LU Xiao TANG Zifa WANG Lin WU Xueshun CHEN Shengwen LIANG Hui ZHOU Huangjian WU Ke HU Longjiao SHEN Jia YU Jiang ZHU State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control College of Environmental Science and Engineering Nankai University Tianjin 300350 China Center for Excellence in Regional Atmospheric Environment Institute of Urban Environment Chinese Academy of Sciences Xiamen 361021 China Wuhan Environmental Monitoring Center Wuhan 430015 China Hunan Meteorological Observatory Changsha 410118 China University of Chinese Academy of Sciences Beijing 100049 China

Severe haze pollution that occurred in January 2014 in Wuhan was investigated. The factors leading to Wuhan’s PM2.5 pollution and the characteristics and formation mechanism were found to be significantly different from other megacities, like Beijing. Both the growth rates and decline rates of PM2.5 concentrations in Wuhan were lower than those in Beijing, but the monthly PM2.5 value was approximately twice that in Beijing. Furthermore, the sharp increases of PM2.5 concentrations were often accompanied by strong winds. A high-precision modeling system with an online source-tagged method was established to explore the formation mechanism of five haze episodes. The long-range transport of the polluted air masses from the North China Plain (NCP) was the main factor leading to the sharp increases of PM2.5 concentrations in Wuhan, which contributed 53.4% of the monthly PM2.5 concentrations and 38.5% of polluted days. Furthermore, the change in meteorological conditions such as weakened winds and stable weather conditions led to the accumulation of air pollutants in Wuhan after the long-range transport. The contribution from Wuhan and surrounding cities to the PM2.5 concentrations was determined to be 67.4% during this period. Under the complex regional transport of pollutants from surrounding cities, the NCP, East China, and South China, the five episodes resulted in 30 haze days in Wuhan. The findings reveal important roles played by transregional and intercity transport in haze formation in Wuhan.

关键词： haze pollution regional transport Wuhan North China Plain source-tagged method

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