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  2. 合肥物质科学研究院
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  4. 中科院安徽光学精密机械研究所
Observations of particle extinction, PM2.5 mass concentration profile and flux in north China based on mobile lidar technique

文献类型：期刊论文

作者Lv, Lihui1,2; Liu, Wenqing1,2; Zhang, Tianshu1; Chen, Zhenyi1; Dong, Yunsheng1; Fan, Guangqiang1; Xiang, Yan1,2; Yao, Yawei3; Yang, Nan3; Chu, Baolin3
刊名ATMOSPHERIC ENVIRONMENT
出版日期2017-09-01
卷号164页码:360-369
关键词Vehicle-based Mobile Lidar Fine Particle Pm2.5 Profile Flux
DOI10.1016/j.atmosenv.2017.06.022
文献子类Article
英文摘要Fine particle with diameter <2.5 mu m (PM2.5) have important direct and indirect effects on human life and activities. However, the studies of fine particle were limited by the lack of monitoring data obtained with multiple fixed site sampling strategies. Mobile monitoring has provided a means for broad measurement of fine particles. In this research, the potential use of mobile lidar to map the distribution and transport of fine particles was discussed. The spatial and temporal distributions of particle extinction, PM2.5 mass concentration and regional transport flux of fine particle in the planetary boundary layer were investigated with the use of vehicle-based mobile lidar and wind field data from north China. Case studies under different pollution levels in Beijing were presented to evaluate the contribution of regional transport. A vehicle-based mobile lidar system was used to obtain the spatial and temporal distributions of particle extinction in the measurement route. Fixed point lidar and a particulate matter sampler were operated next to each other at the University of Chinese Academy of Science (UCAS) in Beijing to determine the relationship between the particle extinction coefficient and PM2.5 mass concentration. The correlation coefficient (R-2) between the particle extinction coefficient and PM2.5 mass concentration was found to be over 0.8 when relative humidity (RH) was less than 90%. A mesoscale meteorological model, the Weather Research and Forecasting (WRF) model, was used to obtain profiles of the horizontal wind speed, wind direction and relative humidity. A vehicle-based mobile lidar technique was applied to estimate transport flux based on the PM2.5 profile and vertical profile of wind data. This method was applicable when hygroscopic growth can be neglected (relatively humidity<90%). Southwest was found to be the main pathway of Beijing during the experiments. (C) 2017 Elsevier Ltd. All rights reserved.
WOS关键词PARTICULATE MATTER ; AIR-POLLUTION ; APEC
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000405765500031
资助机构Major Research Plan of the National Natural Science Foundation of China(91544232) ; Major Research Plan of the National Natural Science Foundation of China(91544232) ; Major Research Plan of the National Natural Science Foundation of China(91544232) ; Major Research Plan of the National Natural Science Foundation of China(91544232) ; Major Research Plan of the National Natural Science Foundation of China(91544232) ; Major Research Plan of the National Natural Science Foundation of China(91544232) ; Major Research Plan of the National Natural Science Foundation of China(91544232) ; Major Research Plan of the National Natural Science Foundation of China(91544232) ; Major Research Plan of the National Natural Science Foundation of China(91544232) ; Major Research Plan of the National Natural Science Foundation of China(91544232) ; Major Research Plan of the National Natural Science Foundation of China(91544232) ; Major Research Plan of the National Natural Science Foundation of China(91544232) ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/33548]  
专题合肥物质科学研究院_中科院安徽光学精密机械研究所
作者单位1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
3.State Environm Protect Key Lab Qual Control Envir, Beijing 100012, Peoples R China
4.Army Air Force Mil Representat Off Beijing, Beijing 100086, Peoples R China
推荐引用方式
GB/T 7714		 Lv, Lihui,Liu, Wenqing,Zhang, Tianshu,et al. Observations of particle extinction, PM2.5 mass concentration profile and flux in north China based on mobile lidar technique[J]. ATMOSPHERIC ENVIRONMENT,2017,164:360-369.
APA Lv, Lihui.,Liu, Wenqing.,Zhang, Tianshu.,Chen, Zhenyi.,Dong, Yunsheng.,...&Shu, Xiaowen.(2017).Observations of particle extinction, PM2.5 mass concentration profile and flux in north China based on mobile lidar technique.ATMOSPHERIC ENVIRONMENT,164,360-369.
MLA Lv, Lihui,et al."Observations of particle extinction, PM2.5 mass concentration profile and flux in north China based on mobile lidar technique".ATMOSPHERIC ENVIRONMENT 164(2017):360-369.

入库方式： OAI收割

来源：合肥物质科学研究院

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