Characteristics and sources of hourly elements in PM10 and PM2.5 during wintertime in Beijing

doi:10.1016/j.envpol.2021.116865

IEECAS OpenIR > 粉尘与环境研究室

	Characteristics and sources of hourly elements in PM10 and PM2.5 during wintertime in Beijing
	Rai, Pragati 1; Furger, Markus 1; Slowik, Jay G.1; Zhong, Haobin 2; Tong, Yandong 1; Wang, Liwei 1; Duan, Jing 2; Gu, Yifang 2; Qi, Lu 1; Huang, Ru-Jin 2; Cao, Junji 2; Baltensperger, Urs 1; Prevot, Andre S. H.1
通讯作者	Furger, Markus(markus.furger@psi.ch) ; Prevot, Andre S. H.(andre.prevot@psi.ch)
	2021-06-01
发表期刊	ENVIRONMENTAL POLLUTION
ISSN	0269-7491
卷号	278 页码:11
摘要	Characteristics and sources of ambient particle elements in urban Beijing were studied by hourly ob-servations in two size fractions (PM10 and PM2.5) during November and December 2017 using an online multi-element analyzer. The reconstructed oxide concentrations of 24 elements (from Al to Pb) comprise an appreciable fraction of PM10 and PM2.5, accounting for 37% and 17%, respectively on average. We demonstrate the benefit of using high-time-resolution chemical speciation data in achieving robust source apportionment of the total elemental PM10 (PM10el) and elemental PM2.5 (PM2.5el) mass using positive matrix factorization (PMF). Biomass burning, coal combustion, secondary sulfate, industry, non -exhaust traffic and dust were identified in both size fractions (with varying relative concentrations), which accounted on average for 4%, 12%, 5%, 2%, 14%, and 63%, respectively to the total PM10el, and 14%, 35%, 21%, 6%, 12% and 12%, respectively to the total PM2.5el. Biomass burning and coal combustion exhibited higher concentrations during haze episodes of the heating season. In contrast, secondary sulfate and industry contributed more to haze episodes during the non-heating season. The fractional contribution of dust was mostly high during clean days, while the fractional non-exhaust traffic emission contribution was similar throughout the measurement period. The non-exhaust traffic emissions contributed locally, while the remaining sources were dominated by neighboring areas. Furthermore, trajectory analysis showed that the origin of the industrial sources roughly agreed with the locations of the main point sources. Overall, this work provides detailed information on the characteristics of the elements during different haze events during heating and non-heating seasons. (C) 2021 The Author(s). Published by Elsevier Ltd.
关键词	Source apportionment Urban air pollution Coal combustion Industries Regional source areas
DOI	10.1016/j.envpol.2021.116865
关键词[WOS]	AMBIENT PARTICULATE MATTER ; SOURCE APPORTIONMENT ; TRACE-ELEMENTS ; MULTILINEAR ENGINE ; AIR-POLLUTION ; HEAVY-METALS ; RIVER DELTA ; CHINA ; EMISSIONS ; SITE
收录类别	SCI ; SCI
语种	英语
资助项目	Swiss National Science Foundation (SNSF)[200021_162448] ; Swiss National Science Foundation (SNSF)[200021_169787] ; Swiss National Science Foundation (SNSF)[BSSGI0_155846] ; Swiss Federal Office for the Environment (FOEN) ; Sino-Swiss Science and Technology Cooperation (SSSTC) project HAZECHINA[IZLCZ2_169986] ; Sino-Swiss Cooperation on Air Pollution Source Apportionment for Better Air[7F-09802.01] ; SDC Clean-Air-China Programme[7F-09802.01.03] ; National Science Foundation of China[21661132005] ; EU Horizon 2020 via the ERA-PLANET[689443] ; EU Horizon 2020 via transnational project SMURBS[689443] ; Swiss State Secretariat for Education, Research and Innovation (SERI)[15.0329-1]
WOS研究方向	Environmental Sciences & Ecology
项目资助者	Swiss National Science Foundation (SNSF) ; Swiss Federal Office for the Environment (FOEN) ; Sino-Swiss Science and Technology Cooperation (SSSTC) project HAZECHINA ; Sino-Swiss Cooperation on Air Pollution Source Apportionment for Better Air ; SDC Clean-Air-China Programme ; National Science Foundation of China ; EU Horizon 2020 via the ERA-PLANET ; EU Horizon 2020 via transnational project SMURBS ; Swiss State Secretariat for Education, Research and Innovation (SERI)
WOS类目	Environmental Sciences
WOS记录号	WOS:000641372900007
出版者	ELSEVIER SCI LTD
引用统计	被引频次：36[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/16407
专题	粉尘与环境研究室
通讯作者	Furger, Markus; Prevot, Andre S. H.
作者单位	1.Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland 2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710075, Peoples R China
推荐引用方式 GB/T 7714	Rai, Pragati,Furger, Markus,Slowik, Jay G.,et al. Characteristics and sources of hourly elements in PM10 and PM2.5 during wintertime in Beijing[J]. ENVIRONMENTAL POLLUTION,2021,278:11.
APA	Rai, Pragati.,Furger, Markus.,Slowik, Jay G..,Zhong, Haobin.,Tong, Yandong.,...&Prevot, Andre S. H..(2021).Characteristics and sources of hourly elements in PM10 and PM2.5 during wintertime in Beijing.ENVIRONMENTAL POLLUTION,278,11.
MLA	Rai, Pragati,et al."Characteristics and sources of hourly elements in PM10 and PM2.5 during wintertime in Beijing".ENVIRONMENTAL POLLUTION 278(2021):11.