气候变化领域集成服务门户(CCPortal): Source appointment of fine particle number and volume concentration during severe haze pollution in Beijing in January 2013

CCPortal

DOI	10.1007/s11356-015-5868-6
	Source appointment of fine particle number and volume concentration during severe haze pollution in Beijing in January 2013
	Liu, Zirui; Wang, Yuesi; Hu, Bo; Ji, Dongsheng; Zhang, Junke; Wu, Fangkun; Wan, Xin; Wang, Yonghong
通讯作者	Wang, YS (通讯作者)
发表日期	2016
ISSN	0944-1344
EISSN	1614-7499
起始页码	6845
结束页码	6860
卷号	23 期号:7
英文摘要	Extreme haze episodes repeatedly shrouded Beijing during the winter of 2012-2013, causing major environmental and health problems. To better understand these extreme events, particle number size distribution (PNSD) and particle chemical composition (PCC) data collected in an intensive winter campaign in an urban site of Beijing were used to investigate the sources of ambient fine particles. Positive matrix factorization (PMF) analysis resolved a total of eight factors: two traffic factors, combustion factors, secondary aerosol, two accumulation mode aerosol factors, road dust, and long-range transported (LRT) dust. Traffic emissions (54 %) and combustion aerosol (27 %) were found to be the most important sources for particle number concentration, whereas combustion aerosol (33 %) and accumulation mode aerosol (37 %) dominated particle volume concentrations. Chemical compositions and sources of fine particles changed dynamically in the haze episodes. An enhanced role of secondary inorganic species was observed in the formation of haze pollution. Regional transport played an important role for high particles, contribution of which was on average up to 24-49 % during the haze episodes. Secondary aerosols from urban background presented the largest contributions (45 %) for the rapid increase of fine particles in the severest haze episode. In addition, the invasion of LRT dust aerosols further elevated the fine particles during the extreme haze episode. Our results showed a clear impact of regional transport on the local air pollution, suggesting the importance of regional-scale emission control measures in the local air quality management of Beijing.
关键词	POSITIVE MATRIX FACTORIZATION BIOMASS BURNING CONTRIBUTION SIZE DISTRIBUTION DATA SOURCE APPORTIONMENT PARTICULATE MATTER REGIONAL HAZE URBAN FINE AEROSOL CHINA DISTRIBUTIONS
英文关键词	Haze episodes; Source apportionment; Particle number size distribution; Positive matrix factorization
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000373632400079
来源期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258669
推荐引用方式 GB/T 7714	Liu, Zirui,Wang, Yuesi,Hu, Bo,et al. Source appointment of fine particle number and volume concentration during severe haze pollution in Beijing in January 2013[J]. 中国科学院青藏高原研究所,2016,23(7).
APA	Liu, Zirui.,Wang, Yuesi.,Hu, Bo.,Ji, Dongsheng.,Zhang, Junke.,...&Wang, Yonghong.(2016).Source appointment of fine particle number and volume concentration during severe haze pollution in Beijing in January 2013.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,23(7).
MLA	Liu, Zirui,et al."Source appointment of fine particle number and volume concentration during severe haze pollution in Beijing in January 2013".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 23.7(2016).