Soot particles at an elevated site in eastern China during the passage of a strong cyclone

doi:10.1016/j.scitotenv.2012.04.050

CORC > 北京大学 > 环境科学与工程学院

	Soot particles at an elevated site in eastern China during the passage of a strong cyclone
	Niu, Hongya ; Shao, Longyi ; Zhang, Daizhou
刊名	science of the total environment
	2012
DOI	10.1016/j.scitotenv.2012.04.050
英文摘要	Atmospheric particles larger than 0.2 ??m were collected at the top of Mt. Tai (36.25??N, 117.10??E, 1534. m a.s.l.) in eastern China in May 2008 during the passage of a strong cyclone. The particles were analyzed with electron microscopes and characterized by morphology, equivalent diameter and elemental composition. Soot particles with coating (coated soot particles) and those without apparent coating (naked soot particles) were predominant in the diameter range smaller than 0.6 ??m in all samples. The number-size distribution of the relative abundance of naked soot particles in the prefrontal air was similar to that in the postfrontal air and their size modes were around 0.2-0.3 ??m. However, the distribution of inclusions of coated soot particles showed a mode in the range of 0.1-0.3 ??m. The coating degree of coated soot particles, which was defined by the ratio of the diameter of inclusion to the diameter of particle body, showed a mode around 0.5 with the range of 0.3-0.6. These results indicate that the status of soot particles in the prefrontal and postfrontal air was similar although air pollution levels were dramatically different. In addition, the relative abundance of accumulation mode particles increased with the decrease of soot particles after the front passage. ? 2012 Elsevier B.V.; EI; 0; 217-222; 430
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/262933]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Niu, Hongya,Shao, Longyi,Zhang, Daizhou. Soot particles at an elevated site in eastern China during the passage of a strong cyclone[J]. science of the total environment,2012.
APA	Niu, Hongya,Shao, Longyi,&Zhang, Daizhou.(2012).Soot particles at an elevated site in eastern China during the passage of a strong cyclone.science of the total environment.
MLA	Niu, Hongya,et al."Soot particles at an elevated site in eastern China during the passage of a strong cyclone".science of the total environment (2012).