Contrasting sources and processes of particulate species in haze days with low and high relative humidity in wintertime Beijing

doi:10.5194/acp-20-9101-2020

IEECAS OpenIR > 粉尘与环境研究室

	Contrasting sources and processes of particulate species in haze days with low and high relative humidity in wintertime Beijing
	Huang, Ru-Jin 1,2,3; He, Yao 1,2; Duan, Jing 1,2; Li, Yongjie 4; Chen, Qi 5; Zheng, Yan 5; Chen, Yang 6; Hu, Weiwei 7,8; Lin, Chunshui 1,2; Ni, Haiyan 1,2; Dai, Wenting 1,2; Cao, Junji 1,2; Wu, Yunfei 9; Zhang, Renjian 9; Xu, Wei 1,2,10; Ovadnevaite, Jurgita 10; Ceburnis, Darius 10; Hoffmann, Thorsten 11; O'Dowd, Colin D.10
通讯作者	Huang, Ru-Jin(rujin.huang@ieecas.cn)
	2020-07-31
发表期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN	1680-7316
卷号	20 期号:14 页码:9101-9114
摘要	Although there are many studies of particulate matter (PM) pollution in Beijing, the sources and processes of secondary PM species during haze periods remain unclear. Limited studies have investigated the PM formation in highly polluted environments under low- and high-relative-humidity (RH) conditions. Herein, we present a systematic comparison of species in submicron particles (PM1) in wintertime Beijing (29 December 2014 to 28 February 2015) for clean periods and pollution periods under low- and high-RH conditions. PM1 species were measured with an aerosol chemical species monitor (ACSM) and an Aethalometer. Sources and processes for organic aerosol (OA) were resolved by positive matrix factorization (PMF) with a multilinear engine 2 (ME-2). The comparisons for clean, low-RH pollution and high-RH pollution periods are made from three different aspects, namely (a) mass concentration, (b) mass fraction and (c) growth rate in diurnal profiles. OA is the dominant component of PM1, with an average mass concentration of 56.7 mu g m(-3) (46 %) during high-RH pollution and 67.7 mu g m(-3) (54 %) during low-RH pollution periods. Sulfate had higher concentration and mass fraction during high-RH pollution periods, while nitrate had higher concentration and mass fraction during low-RH pollution periods. The diurnal variations of nitrate and oxygenated organic aerosol (OOA) showed a daytime increase in their concentrations during all three types of periods. Nitrate had similar growth rates during low-RH (0.40 mu g m(-3) h(-1)) and high-RH (0.55 mu g m(-3) h(-1)) pollution periods. OOA had a higher growth rate during low- RH pollution periods (1.0 mu g m(-3) h(-1)) than during high-RH pollution periods (0.40 mu g m(-3) h(-1)). In contrast, sulfate had a decreasing trend during low-RH pollution periods, while it increased significantly with a growth rate of 0.81 mu g m(-3) h(-1) during high-RH pollution periods. These distinctions in mass concentrations, mass fractions and daytime growth rates may be explained by the difference in the formation processes affected by meteorological conditions. In particular, photochemical oxidation and aqueous-phase processes may both produce sulfate and nitrate. The relative importance of the two pathways, however, differs under different meteorological conditions. Additional OOA formation under high-RH (> 70 %) conditions suggests aqueous-related formation pathways. This study provides a general picture of the haze formation in Beijing under different meteorological conditions.
DOI	10.5194/acp-20-9101-2020
关键词[WOS]	POSITIVE MATRIX FACTORIZATION ; NEW-YORK-CITY ; CHEMICAL-COMPOSITION ; SOURCE APPORTIONMENT ; EVOLUTION PROCESSES ; AEROSOL COMPOSITION ; INORGANIC AEROSOLS ; SECONDARY AEROSOLS ; POLLUTED CITY ; CHINA
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China[41925015] ; National Natural Science Foundation of China[91644219] ; National Natural Science Foundation of China[41877408] ; National Natural Science Foundation of China[41675120] ; National Key Research and Development Program of China[2017YFC0212701] ; Chinese Academy of Sciences[ZDBS-LY-DQC001] ; Cross Innovative Team fund from the State Key Laboratory of Loess and Quaternary Geology[SKLLQGTD1801] ; Irish Environmental Protection Agency and Science Foundation Ireland (OM-MaREI)
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
项目资助者	National Natural Science Foundation of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences ; Cross Innovative Team fund from the State Key Laboratory of Loess and Quaternary Geology ; Irish Environmental Protection Agency and Science Foundation Ireland (OM-MaREI)
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000558639500002
出版者	COPERNICUS GESELLSCHAFT MBH
引用统计	被引频次：29[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/361006/15181
专题	粉尘与环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	Huang, Ru-Jin
作者单位	1.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Ctr Excellence Quaternary Sci & Global Change, Inst Earth & Environm, Xian 710061, Peoples R China 2.Chinese Acad Sci, Inst Earth & Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Ocean Continental Climate & Environm, Qingdao 266061, Peoples R China 4.Univ Macau, Fac Sci & Technol, Dept Civil & Environm Engn, Taipa, Macao, Peoples R China 5.Peking Univ, Coll Environm Sci & Engn, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100871, Peoples R China 6.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 7.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 8.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Protect & Resources Ut, Guangzhou 510640, Peoples R China 9.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Middle Atmosphere & Global Environm Obser, Beijing 100029, Peoples R China 10.Natl Univ Ireland Galway, Ryan Inst, Sch Phys & Ctr Climate & Air Pollut Studies, Univ Rd, Galway H91C F50, Ireland 11.Johannes Gutenberg Univ Mainz, Inst Inorgan & Analyt Chem, Duesbergweg 10-14, D-55128 Mainz, Germany
推荐引用方式 GB/T 7714	Huang, Ru-Jin,He, Yao,Duan, Jing,et al. Contrasting sources and processes of particulate species in haze days with low and high relative humidity in wintertime Beijing[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(14):9101-9114.
APA	Huang, Ru-Jin.,He, Yao.,Duan, Jing.,Li, Yongjie.,Chen, Qi.,...&O'Dowd, Colin D..(2020).Contrasting sources and processes of particulate species in haze days with low and high relative humidity in wintertime Beijing.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(14),9101-9114.
MLA	Huang, Ru-Jin,et al."Contrasting sources and processes of particulate species in haze days with low and high relative humidity in wintertime Beijing".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.14(2020):9101-9114.