Quantitative relationship between visibility and mass concentration of PM2.5 in Beijing

CORC > 北京大学 > 环境科学与工程学院

	Quantitative relationship between visibility and mass concentration of PM2.5 in Beijing
	Wang, Jing-Li ; Zhang, Yuan-Hang ; Shao, Min ; Liu, Xu-Lin ; Zeng, Li-Min ; Cheng, Cong-Lan ; Xu, Xiao-Feng
刊名	环境科学学报
	2006
英文摘要	The pollution of particulate matter less than 2.5 ??m (PM2.5) is a serious environmental problem in Beijing. The annual average concentration of PM2.5 in 2001 from seasonal monitor results was more than 6 times that of the U.S. national ambient air quality standards proposed by U.S. EPA. The major contributors to mass of PM2.5 were organics, crustal elements and sulfate. The chemical composition of PM2.5 varied largely with season, but was similar at different monitor stations in the same season. The fine particles (PM2.5) cause atrnospheric visibility deterioration through light extinction. The mass concentrations of PM2.5 were anti-correlated to the visibility, the best fits between atmospheric visibility and the mass concentrations of PM2.5 were somehow different: power in spring, exponential in summer, logarithmic in autumn, power or exponential in winter. As in each season the meteorological parameters such as air temperature and relative humidity change from day to day, probably the reason of above correlations between PM2.5 and visibility obtained at different seasons come from the differences in chemical compositions of PM2.5. ? 2006 Science Press. All rights reserved.; EI; 中文核心期刊要目总览(PKU); 中国科学引文数据库(CSCD); 0; 3; 475-481; 18
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/410432]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Wang, Jing-Li,Zhang, Yuan-Hang,Shao, Min,et al. Quantitative relationship between visibility and mass concentration of PM2.5 in Beijing[J]. 环境科学学报,2006.
APA	Wang, Jing-Li.,Zhang, Yuan-Hang.,Shao, Min.,Liu, Xu-Lin.,Zeng, Li-Min.,...&Xu, Xiao-Feng.(2006).Quantitative relationship between visibility and mass concentration of PM2.5 in Beijing.环境科学学报.
MLA	Wang, Jing-Li,et al."Quantitative relationship between visibility and mass concentration of PM2.5 in Beijing".环境科学学报 (2006).