Molecular Characteristics and Formation Mechanisms of Biogenic Secondary Organic Aerosols in the Summer Atmosphere at Mt. Tai on the North China Plain

doi:10.4209/aaqr.2019.10.0515

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	Molecular Characteristics and Formation Mechanisms of Biogenic Secondary Organic Aerosols in the Summer Atmosphere at Mt. Tai on the North China Plain
	Yi, Yanan 1; Meng, Jingjing 1,2; Hou, Zhanfang 1,2; Yan, Li 3; Liu, Xiaodi 1; Fu, Mengxuan 1; Li, Zheng 1; Zhou, Ruiwen 1; Wang, Yachen 1; Wei, Benjie 1
通讯作者	Meng, Jingjing(mengjingjing@lcu.edu.cn) ; Hou, Zhanfang(houzhanfang@lcu.edu.cn)
	2019-12-01
发表期刊	AEROSOL AND AIR QUALITY RESEARCH
ISSN	1680-8584
卷号	19 期号:12 页码:2671-2682
摘要	To investigate the molecular characteristics and formation mechanisms of biogenic secondary organic aerosol (BSOA), daytime and nighttime PM2.5 samples were collected at the summit of Mt. Tai during the summer of 2016. The critical indicators of primary sources, such as elemental carbon (EC) and levoglucosan, displayed similar values during the daytime and nighttime, suggesting that changes in the boundary layer heights (BLHs) produced only inconsequential effects during the observation campaign. The molecular distributions of the BSOA were dominated by isoprene SOA tracers (68.5 +/- 42.6 ng m(-3)), followed by monoterpene (43.5 +/- 24.4 ng m(-3)) and beta-caryophyllene (16.3 +/- 8.6 ng m(-3)) SOA tracers. Due to the higher diurnal temperatures and solar radiation, the concentrations of all of the tracers were higher during the day than at night. The ratio of the combined cis-pinonic and cis-pinic acid to the MBTCA (P/M) was much lower than in Chinese cities and at the Tibetan background site, indicating that the monoterpene SOA was relatively aged in the mountainous atmosphere, in large part because of the stronger solar radiation at the peak of Mt. Tai. The concentrations of the BSOA products exhibited a significantly positive correlation with the level of ozone during the daytime (R-2 = 0.58-0.86) and the temperature over the whole sampling period (R-2 = 0.37-0.75), as higher temperatures can accelerate the emission of biogenic volatile organic compounds and the formation of SOA. By contrast, the BSOA tracers displayed a negative linear correlation with the relative humidity (RH) (R-2 = 0.43-0.84) and the in situ particle pH (pH(is)) (R-2 = 0.55-0.70) because high RH can inhibit the acid-catalyzed formation of BSOA due to the dilution of the aerosol acidity. No correlation between the BSOA tracers and anthropogenic pollutants (e.g., levoglucosan, SO42-, NO3- and EC) was observed during the daytime or nighttime, suggesting that BSOA tracers in the atmosphere of Mt. Tai during summer were primarily derived from the local oxidation of BVOCs rather than long-distance-transported anthropogenic emissions from the lowlands.
关键词	Biogenic secondary organic aerosol (BSOA) Isoprene Aerosol acidity Temperature and relative humidity Anthropogenic pollutants
DOI	10.4209/aaqr.2019.10.0515
关键词[WOS]	DICARBOXYLIC-ACIDS ; SEASONAL-VARIATIONS ; CHEMICAL-COMPOSITION ; NIGHTTIME OXIDATION ; RELATIVE-HUMIDITY ; ALPHA-DICARBONYLS ; URBAN ATMOSPHERE ; PM2.5 AEROSOLS ; COASTAL CITY ; TRACERS
收录类别	SCI ; SCI
语种	英语
资助项目	China National Science Funds[41505112] ; China National Science Funds[41702373] ; Natural Science Foundation of Shandong Province[BS2015HZ002] ; Open Funds of State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences[SKLLQG1509] ; Open Funds of State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences[SKLLQG1504]
WOS研究方向	Environmental Sciences & Ecology
项目资助者	China National Science Funds ; Natural Science Foundation of Shandong Province ; Open Funds of State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences
WOS类目	Environmental Sciences
WOS记录号	WOS:000500942500005
出版者	TAIWAN ASSOC AEROSOL RES-TAAR
引用统计	被引频次：6[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/361006/12967
专题	黄土与第四纪地质国家重点实验室（2010~）粉尘与环境研究室
通讯作者	Meng, Jingjing; Hou, Zhanfang
作者单位	1.Liaocheng Univ, Sch Environm & Planning, Liaocheng 252000, Shandong, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Key Lab Aerosol Chem & Phys, Xian 710075, Shaanxi, Peoples R China 3.Chinese Acad Environm Planning, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Yi, Yanan,Meng, Jingjing,Hou, Zhanfang,et al. Molecular Characteristics and Formation Mechanisms of Biogenic Secondary Organic Aerosols in the Summer Atmosphere at Mt. Tai on the North China Plain[J]. AEROSOL AND AIR QUALITY RESEARCH,2019,19(12):2671-2682.
APA	Yi, Yanan.,Meng, Jingjing.,Hou, Zhanfang.,Yan, Li.,Liu, Xiaodi.,...&Wei, Benjie.(2019).Molecular Characteristics and Formation Mechanisms of Biogenic Secondary Organic Aerosols in the Summer Atmosphere at Mt. Tai on the North China Plain.AEROSOL AND AIR QUALITY RESEARCH,19(12),2671-2682.
MLA	Yi, Yanan,et al."Molecular Characteristics and Formation Mechanisms of Biogenic Secondary Organic Aerosols in the Summer Atmosphere at Mt. Tai on the North China Plain".AEROSOL AND AIR QUALITY RESEARCH 19.12(2019):2671-2682.