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, Yanan1; Meng, Jingjing1,2; Hou, Zhanfang1,2; Yan, Li3; Liu, Xiaodi1; Fu, Mengxuan1; Li, Zheng1; Zhou, Ruiwen1; Wang, Yachen1; Wei, Benjie1
Corresponding AuthorMeng, Jingjing(mengjingjing@lcu.edu.cn) ; Hou, Zhanfang(houzhanfang@lcu.edu.cn)
2019-12-01
Source PublicationAEROSOL AND AIR QUALITY RESEARCH
ISSN1680-8584
Volume19Issue:12Pages:2671-2682
AbstractTo 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.
KeywordBiogenic secondary organic aerosol (BSOA) Isoprene Aerosol acidity Temperature and relative humidity Anthropogenic pollutants
DOI10.4209/aaqr.2019.10.0515
WOS KeywordDICARBOXYLIC-ACIDS ; SEASONAL-VARIATIONS ; CHEMICAL-COMPOSITION ; NIGHTTIME OXIDATION ; RELATIVE-HUMIDITY ; ALPHA-DICARBONYLS ; URBAN ATMOSPHERE ; PM2.5 AEROSOLS ; COASTAL CITY ; TRACERS
Indexed BySCI ; SCI
Language英语
Funding ProjectChina 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 Research AreaEnvironmental Sciences & Ecology
Funding OrganizationChina 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 SubjectEnvironmental Sciences
WOS IDWOS:000500942500005
PublisherTAIWAN ASSOC AEROSOL RES-TAAR
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/12967
Collection黄土与第四纪地质国家重点实验室(2010~)
粉尘与环境研究室
Corresponding AuthorMeng, Jingjing; Hou, Zhanfang
Affiliation1.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
Recommended Citation
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.
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