Vertical Distribution Characteristics of PM2.5 Observed by a Mobile Vehicle Lidar in Tianjin, China in 2016

	Vertical Distribution Characteristics of PM2.5 Observed by a Mobile Vehicle Lidar in Tianjin, China in 2016
	Lyu Lihui 1; Dong Yunsheng 1; Zhang Tianshu 1; Liu Cheng 1; Liu Wenqing 1; Xie Zhouqing 1; Xiang Yan 1; Zhang Yi 1; Chen Zhenyi 1; Fan Guangqiang 1
刊名	气象学报：英文版
	2018
卷号	000
关键词	mobile vehicle lidar vertical concentration profile fine particle
ISSN号	2095-6037
其他题名	Vertical Distribution Characteristics of PM2.5 Observed by a Mobile Vehicle Lidar in Tianjin, China in 2016
英文摘要	We present mobile vehicle lidar observations in Tianjin, China during the spring, summer, and winter of 2016. Mobile observations were carried out along the city border road of Tianjin to obtain the vertical distribution characteristics of PM2.5. Hygroscopic growth was not considered since relative humidity was less than 60% during the observation experiments. PM2.5 profile was obtained with the linear regression equation between the particle extinction coefficient and PM2.5 mass concentration. In spring, the vertical distribution of PM2.5 exhibited a hierarchical structure. In addition to a layer of particles that gathered near the ground, a portion of particles floated at 0.6–2.5-km height. In summer and winter, the fine particles basically gathered below 1 km near the ground. In spring and summer, the concentration of fine particles in the south was higher than that in the north because of the influence of south wind. In winter, the distribution of fine particles was opposite to that measured during spring and summer. High concentrations of PM2.5 were observed in the rural areas of North Tianjin with a maximum of 350 μg m–3 on 13 December2016. It is shown that industrial and ship emissions in spring and summer and coal combustion in winter were the major sources of fine particles that polluted Tianjin. The results provide insights into the mechanisms of haze formation and the effects of meteorological conditions during haze–fog pollution episodes in the Tianjin area.
语种	中文
CSCD记录号	CSCD:6231041
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/49642]
专题	中国科学院合肥物质科学研究院
作者单位	1.Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences 2.Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences 3.Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences 4.Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences 5.Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences 6.Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences 7.Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences 8.Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences 9.Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences 10.Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences
推荐引用方式 GB/T 7714	Lyu Lihui,Dong Yunsheng,Zhang Tianshu,et al. Vertical Distribution Characteristics of PM2.5 Observed by a Mobile Vehicle Lidar in Tianjin, China in 2016[J]. 气象学报：英文版,2018,000.
APA	Lyu Lihui.,Dong Yunsheng.,Zhang Tianshu.,Liu Cheng.,Liu Wenqing.,...&Shu Xiaowen.(2018).Vertical Distribution Characteristics of PM2.5 Observed by a Mobile Vehicle Lidar in Tianjin, China in 2016.气象学报：英文版,000.
MLA	Lyu Lihui,et al."Vertical Distribution Characteristics of PM2.5 Observed by a Mobile Vehicle Lidar in Tianjin, China in 2016".气象学报：英文版 000(2018).