Identification of the typical metal particles among haze, fog, and clear episodes in the Beijing atmosphere

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Identification of the typical metal particles among haze, fog, and clear episodes in the Beijing atmosphere
	Hu, YJ; Lin, J; Zhang, SQ; Kong, LD; Fu, HB; Chen, JM
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2015
卷号	511 页码:369—380
关键词	TRANSMISSION ELECTRON-MICROSCOPY AIRBORNE PARTICULATE MATTER HEAVY-METALS TRACE-METALS FLY-ASH CHEMICAL-COMPOSITION OXIDATIVE STRESS COAL COMBUSTION POWER-STATION URBAN AEROSOL
英文摘要	For a better understanding of metal particle morphology and behaviors in China, atmospheric aerosols were sampled in the summer of 2012 in Beijing. The single-particle analysis shows various metal-bearing speciations, dominated by oxides, sulfates and nitrates. A large fraction of particles is soluble. Sources of Fe-bearing particles are mainly steel industries and oil fuel combustion, whereas Zn- and Pb-bearing particles are primarily contributed by waste incineration, besides industrial combustion. Other trace metal particles play a minor rule, and may come from diverse origins. Mineral dust and anthropogenic source like vehicles and construction activities are of less importance to metal-rich particles. Statistics of 1173 analyzed particles show that Fe-rich particles (48.5%) dominate the metal particles, followed by Zn-rich particles (34.9%) and Pb-rich particles (15.6%). Compared with the abundances among clear, haze and fog conditions, a severe metal pollution is identified in haze and fog episodes. Particle composition and elemental correlation suggest that the haze episodes are affected by the biomass burning in the southern regions, and the fog episodes by the local emission with manifold particle speciation. Our results show the heterogeneous reaction accelerated in the fog and haze episodes indicated by more zinc nitrate or zinc sulfate instead of zinc oxide or carbonate. Such information is useful in improving our knowledge of fine airborne metal particles on their morphology, speciation, and solubility, all of which will help the government introduce certain control to alleviate metal pollution. (C) 2014 Elsevier B.V. All rights reserved.
收录类别	SCI
语种	英语
公开日期	2015-12-24
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/24473]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 GB/T 7714	Hu, YJ,Lin, J,Zhang, SQ,et al. Identification of the typical metal particles among haze, fog, and clear episodes in the Beijing atmosphere[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2015,511:369—380.
APA	Hu, YJ,Lin, J,Zhang, SQ,Kong, LD,Fu, HB,&Chen, JM.(2015).Identification of the typical metal particles among haze, fog, and clear episodes in the Beijing atmosphere.SCIENCE OF THE TOTAL ENVIRONMENT,511,369—380.
MLA	Hu, YJ,et al."Identification of the typical metal particles among haze, fog, and clear episodes in the Beijing atmosphere".SCIENCE OF THE TOTAL ENVIRONMENT 511(2015):369—380.