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The design and research of atmospheric pollution dispersion simulation evaluation information system

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The design and research of atmospheric pollution dispersion ...

Remote sensing of air pollution incorporating integrated-path differential-absorption and coherent-Doppler lidar

The 4th International Conference on Environmental and Engineering Geophysics

作者： Bin Yang~(1 2) Huixi Xu~3 Qing Wang~1 1.College of Environment and Resource Southwest University of Science and Technology Mianyang China 621010 2.State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of Technology Chengdu China 610059 3.Department of Traffic and Municipal Engineering Sichuan College of Architectural technology Deyang China 618000

＜正＞It has become a hot research field of combining GIS and environmental models to evaluate the quality of atmospheric pollution dispersion modeling and atmosphere air quality assessment, which would play the advantages of GIS spatial analysis and spatial data visual *** is to express analysis and predicting in all kind of pollution source from view of macros copy and microcosmic,which would realize the impelling visual management of atmospheric pollution dispersion evaluate and provide a plan of decision support for engine asset and *** atmospheric pollution dispersion simulation ＆ Evaluation System utilizes the integration technology of ArcEngine ***,to achieve the management of map,atmospheric pollution dispersion simulation,evaluation and so *** System has an important role spatial analysis and data processing based on GIS,accomplishing the visual management of atmospheric pollution. This has established a set of application-oriented and operation flexible software of atmosphere evaluation and simulation systems for evaluation and decision institution.

关键词： atmospheric pollution integration simulation evaluation

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Defence Technology（防务技术） 2024年第1期31卷 594-601页

作者： Ze-hou Yang Yong Chen Chun-li Chen Yong-ke Zhang Ji-hui Dong Tao Peng Xiao-feng Li Ding-fu Zhou School of Physics Beijing Institute of TechnologyBeijing 100081China Southwest Institute of Technical Physics Chengdu 610041SichuanChina School of Optics and Photonics Beijing Institute of TechnologyBeijing 100081China

An innovative complex lidar system deployed on an airborne rotorcraft platform for remote sensing of atmospheric pollution is proposed and *** system incorporates integrated-path differential absorption lidar(DIAL) and coherent-doppler lidar(CDL) techniques using a dual tunable TEA CO_(2)laser in the 9—11 μm band and a 1.55 μm fiber *** combining the principles of differential absorption detection and pulsed coherent detection,the system enables agile and remote sensing of atmospheric *** static tests validate the system’s real-time detection capabilities,including the measurement of concentration-path-length product(CL),front distance,and path wind speed of air pollution plumes over long distances exceeding 4 *** experiments is conducted with the *** of the pollutant concentration and the wind field is carried out in an approximately 1 km slant range over scanning angle ranges from 45°to 65°,with a radial resolution of 30 m and10 *** test results demonstrate the system’s ability to spatially map atmospheric pollution plumes and predict their motion and dispersion patterns,thereby ensuring the protection of public safety.

关键词： Differential absorption LIDAR Coherent Doppler lidar Remoting sensing atmospheric pollution

Environmental Process and Convergence Belt of atmospheric NO_2 pollution in North China

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Acta meteorologica Sinica 2011年第6期25卷 797-811页

作者：尉鹏任阵海苏福庆程水源张鹏高庆生 College of Environmental & Energy Engineering Beijing University of Technology Chinese Research Academy of Environmental Sciences National Satellite Meteorological Center China Meteorological Administration

Both surface environmental monitoring and satellite remote sensing show that North China is one of the regions that are heavily polluted by NO2. Using the NO2 monitoring data from 18 major cities in the region, the tropospheric NO2 column density data from the Ozone Monitoring Instrument （OMI） on the Aura satellite, and the observations from the China Meteorological Administration network, this paper analyzes a regional NO2 pollution event in February 2007 over North China, examines the convergence of the pollutant, and identifies its correlation with the atmospheric background conditions. The results show that daily mean NO2 concentrations derived from surface observations are consistent with the mean values of the OMI measurements, with their correlation coefficient reaching 0.81. The correlations of NO2 concentration with general weather patterns and sequential changes of temperature structure from 925 hPa down to the surface indicate that the weather fronts, high pressure and low pressure systems in the atmosphere play a role in changing the temporal and spatial evolutions of NO2 through removing, accumulating or converging of the pollutant, respectively. It is also found that the eastern Taihang Mountains is most heavily polluted by NO2 in North China. Based on a model that correlates NO2 column density with surface wind vector, the relation of the NO2 concentrations in six major cities in North China to the surrounding wind field is analyzed. The results show that the maximum wind field is associated with the highest frequency of pollution events, and under certain large-scale atmospheric conditions together with the topographic effect, small- and meso-scale wind fields often act to transport and converge pollutants, and become a major factor in forming the heaviest NO2 pollution event in North China. Analysis of the causes for the severe NO2 pollution event in this study may shed light on understanding, forecasting, and mitigating occurrences of heavy NO2 pol

关键词： atmospheric pollution environmental process convergence belt satellite remote sensing

atmospheric environment monitoring technology and equipment in China:A review and outlook

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Journal of Environmental Sciences 2023年第1期123卷 41-53页

作者： Youwen Sun Ting Yang Huaqiao Gui Xin Li Weigang Wang Jun Duan Shushuai Mao Hao Yin Bin Zhou Jianlei Lang Haijin Zhou Cheng Liu Pinhua Xie Key Laboratory of Environmental Optics and Technology Anhui Institute of Optics and Fine MechanicsHFIPSChinese Academy of SciencesHefei 230031China Department of Precision Machinery and Precision Instrumentation University of Science and Technology of ChinaHefei 230026China State Key Laboratory of atmospheric Boundary Layer Physics and atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China State Key Joint Laboratory of Environmental Simulation and pollution Control College of Environmental Sciences and EngineeringPeking UniversityBeijing 100871China State Key Laboratory for Structural Chemistry of Unstable and Stable Species Institute of ChemistryChinese Academy of SciencesBeijing 100190China Key Laboratory of Beijing on Regional Air pollution Control College of Environmental&Energy EngineeringBeijing University of TechnologyBeijing 100124China Shanghai Key Laboratory of atmospheric Particle pollution and Prevention(LAP3) Department of Environmental Science and EngineeringFudan UniversityShanghai 200438China Center for Excellence in Regional atmospheric Environment Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes University of Science and Technology of ChinaHefei 230026China Anhui Province Key Laboratory of Polar Environment and Global Change University of Science and Technology of ChinaHefei 230026China

Accurate monitoring of the atmospheric environment and its evolution are important for understanding the sources,chemical mechanisms,and transport processes of air pollution and carbon emissions in China,and for regulatory and control *** study gives an overview of atmospheric environment monitoring technology and equipment in China and summarizes the major achievements obtained in recent *** has made great progress in the development of atmospheric environment monitoring technology and equipment with decades of *** manufacturing level of atmospheric environment monitoring equipment and the quality of products have steadily improved,and a technical&production system that can meet the requirements of routine monitoring activities has been *** is expected that domestic atmospheric environment monitoring technology and equipment will be able to meet future demands for routine monitoring activities in China and provide scientific assistance for addressing air pollution problems.

关键词： atmospheric pollution atmospheric environment atmospheric monitoring Environmental instrument

Comprehensive and high-resolution emission inventory of atmospheric pollutants for the northernmost cities agglomeration of Harbin-Changchun,China:Implications for local atmospheric environment management

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Journal of Environmental Sciences 2021年第6期33卷 150-168页

作者： Mengduo Zhang Weiwei Chen Xiangjin Shen Hongmei Zhao Chengkang Gao Xuelei Zhang Wei Liu Chengjiang Yang Yang Qin Shichun Zhang Jing Fu Daniel Tong Aijun Xiu Key Laboratory of Wetland Ecology and Environment Northeast Institute of Geography and AgroecologyChinese Academy of SciencesChangchun 130102China University of Chinese Academy of Sciences Beijing 100049China Northeastern University School of Metallurgy Shenyang 110819China Heilongjiang Provincial Academy of Environmental Sciences Harbin 150090China Jilin Provincial Ecological Environment Monitoring Center Changchun 130012China Center for Spatial Information Science and Systems George Mason UniversityFairfaxVA 22030USA Cooperative Institute for Climate&Satellites University of MarylandCollege ParkMD 20740USA

Using a bottom-up estimation method,a comprehensive,high-resolution emission inventory of gaseous and particulate atmospheric pollutants for multiple anthropogenic sectors with typical local sources has been developed for the Harbin-Changchun city agglomeration(HCA).The annual emissions for CO,NO_(x),SO_(2),NH_(3),VOC S,PM_(2.5),PM 10,BC and OC during 2017 in the HCA were estimated to be 5.82 Tg,0.70 Tg,0.34 Tg,0.75 Tg,0.81 Tg,0.67 Tg,1.59 Tg,0.12 Tg and 0.26 Tg,*** PM 10 and SO_(2),the emissions from industry processes were the dominant contributors representing 54.7%and 49.5%,respectively,of the total emissions,while 95.3%and 44.5%of the total NH_(3)and NO x emissions,respectively,were from or associated with agricultural activities and *** distributions showed that most emissions(except NH_(3))occurred in November to March and were concentrated in the central cities of Changchun and Harbin and the surrounding *** burning of straw made an important contribution to PM_(2.5)in the central regions of the northeastern plain during autumn and spring,while domestic coal combustion for heating purposes was significant with respect to SO_(2)and PM_(2.5)emissions during autumn and ***,based on Principal Component Analysis and Multivariable Linear Regression model,air temperature,relative humidity,electricity and energy consumption,and the urban and rural population were optimized to be representative indicators for rapidly assessing the magnitude of regional atmospheric pollutants in the *** indicators and equations were demonstrated to be useful for local atmospheric environment management.

关键词： Anthropogenic emissions Inventory Air quality atmospheric pollution Environmental management Northern China

Ground-high altitude joint detection of ozone and nitrogen oxides in urban areas of Beijing

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Journal of Environmental Sciences 2013年第4期25卷 758-769页

作者： Pengfei Chen Qiang Zhang Jiannong Quan Yang Gao Delong Zhao Junwang Meng Beijing Weather Modification Office Institute of Urban Meteorology China Meteorological AdministrationPost-Doctoral Scientific Research Workstation of Urban Meteorology and Urban Disasters

Based on observational data of ozone （O3） and nitrogen oxide （NOx） mixing ratios on the ground and at high altitude in urban areas of Beijing during a period of six days in November 2011, the temporal and spatial characteristics of mixing ratios were analyzed. The major findings include： urban O3 mixing ratios are low and NOx mixing ratios are always high near the road in November. Vertical variations of the gases are significantly different in and above the planetary boundary layer. The mixing ratio of O3 is negatively correlated with that of NOx and they are positively correlated with air temperature, which is the main factor directly causing vertical variation of O3 and NOx mixing ratios at 600-2100 m altitude. The NOx mixing ratios elevated during the heating period, while the O3 mixing ratios decreased： these phenomena are more significant at high altitudes compared to lower altitudes. During November, air masses in the urban areas of Beijing are brought by northwesterly winds, which transport O3 and NOx at low mixing ratios. Due to Beijing＇s natural geographical location, northwest air currents arc beneficial to the dilution and dispersion of pollutants, which can result in lower O3 and NOx background values in the Beijing urban area.

关键词： atmospheric pollution ozone nitrogen oxides spatial distribution aircraft sound

Advances in coastal ocean boundary layer detection technology and equipment in China

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Journal of Environmental Sciences 2023年第1期123卷 156-168页

作者： Haitao Zheng Youwen Sun Tao Luo Xueling Cheng Shiyong Shao Shouyin Zheng Bangyi Tao Bin Chen Qianguang Tu Kan Huang Bingbing Wang Mian Wang Xiaoquan Song Tianshu Zhang Yin Cheng Jianguo Liu Key Laboratory of Environmental Optics and Technology Anhui Institute of Optics and Fine MechanicsHFIPSChinese Academy of SciencesHefei 230031China Department of Precision Machinery and Precision Instrumentation University of Science and Technology of ChinaHefei 230026China Key Laboratory of atmospheric Optics Anhui Institute of Optics and Fine MechanicsChinese Academy of SciencesHefei 230031China Advanced Laser Technology Laboratory of Anhui Province Hefei 230031China Institute of atmospheric Physics Chinese Academy of SciencesBeijing 100029China College of Earth Sciences University of Chinese Academy of SciencesBeijing 100049China State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China School of Surveying and Municipal Engineering Zhejiang University of Water Resources and Electric PowerHangzhou 310018China Center for atmospheric Chemistry Study Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention(LAP3)Department of Environmental Science and EngineeringFudan UniversityShanghai 200433China State Key Laboratory of Marine Environmental Science College of Ocean and Earth SciencesXiamen UniversityXiamen 361005China Meteorological Observation Centre China Meteorological AdministrationBeijing 100081China College of Marine Technology Faculty of Information Science and EngineeringOcean University of ChinaQingdao 266100China

Accurate and comprehensive knowledge of the atmospheric environment and its evolution within the coastal ocean boundary layer are necessary for understanding the sources,chemical mechanisms,and transport processes of air pollution in land,sea,and *** present an overview of coastal ocean boundary layer detection technology and equipment in China and summarize the progress and main achievements in recent *** has developed a series of coastal ocean boundary layer detection technologies,including Light Detection and Ranging(LIDAR),turbulent exchange analyzer,air-sea flux analyzer,stereoscopic remote sensing of air pollutants,and oceanic aerosol detection equipment to address the technical bottleneck caused by harsh environmental conditions in coastal ocean *** in these technologies and equipment have provided scientific assistance for addressing air pollution issues and understanding land-sea-atmosphere interactions over coastal ocean regions in *** the future,routine atmospheric observations should cover the coastal ocean boundary layer of China.

关键词： atmospheric pollution Coastal ocean atmospheric monitoring Environmental instrument

Radioactive source terms for the Fukushima nuclear accident

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Science China Earth Sciences 2016年第1期59卷 214-222页

作者： LIN WuHui CHEN LiQi YU Wen MA Hao ZENG Zhi ZENG Shi School of Marine Seienee Guangxi University Nanning 530004China Laboratory of Marine lsotopie Technology and Environmental Risk Assessment Third Institute of OceanographyXiamen 361005China Key Laboratory of Global Change and Marine-atmospheric Chemistry State Oceanic AdministrationXiamen 361005China Department of Engmeering Physics Tsinghua UniversityBeijing 100084China

A large amount of radioactivity was released into the environment after the Fukushima nuclear accident （FNA） in Japan in 2011. This radioactivity had a significant impact on the global environment, and there was much public concern about its effects. The subsequent assessment of the FNA and the environmental remediation required are proving to be long and complicated tasks. The assessments are based on the radioactive source terms for the FNA, which determine the level of damage caused by the nuclear accident. We investigated the radioactive source terms from three aspects： the amount and composition of the radionuclides; the activity and atomic ratio of the radionuclides; and comparison with other historical events. The total amount of radioactivity, excluding the radioactive noble gases （85Kr and 133Xe）, released by the FNA was about 10% of that released by the Chernobyl nuclear accident in 1986 and 〈1%o of the global fallout from the atmosphere nuclear explosion. However, the FNA was the most serious nuclear accident in terms of radioactive pollution of the marine environment. The recovery actions carried out after the FNA have been evaluated and the environmental impacts of the FNA are discussed.

关键词： Fukushima Nuclear Accident Chernobyl Nuclear Accident Global fallout Radioactivity atmospheric pollution Marine pollution

Experimental Investigation of Cutting Nitrogen Oxides Emission from Cement Kilns using Coal Preheating Method

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Journal of Thermal Science 2021年第4期30卷 1097-1107页

作者： WU Huixing CAI Jun REN Qiangqiang CAO Xiaoyang LYU Qinggang Institute of Engineering Thermophysics Chinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Dalian National Laboratory for Clean Energy Dalian 116023China

The large consumption of coal in cement industry leads to a significant nitrogen oxide(NO_(x))emission,which has caused severe atmospheric pollution due to the existing low-efficiency denitration *** this research,a fuel pretreatment method on the concept of coal preheating was proposed to reduce NO_(x)emission from cement kilns.A special bench-scale experiment was designed to verify the feasibility of the proposed *** results showed that the proposed method could achieve high combustion efficiency,steady operation and low NO_(x)*** maximum reduction efficiency of primary NO in kiln gas reached 91.4%while the lowest NO_(x)emission was 145 mg/m^(3)(@10%O_2)during the *** effects of key parameters on NO_(x)emission and primary NO_(x)reduction efficiency were comprehensively *** was found that primary and secondary air ratios determined the oxygen content in the flue gas and the reaction temperature,which multiply affected the fuel-NO_(x)formation and activity of *** the length of the reducing zone could not only enhance the primary NO_(x)reduction efficiency,but also lower the combustion *** addition,cement raw material could greatly accelerate the formation of fuel-NO_(x)while its catalytic action on NO_(x)reduction was limited.

关键词： coal preheating NO_(x)reduction atmospheric pollution cement industry