气候变化领域集成服务门户(CCPortal): Source apportionment and impact of long-range transport on carbonaceous aerosol particles in central Germany during HCCT-2010

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DOI	10.5194/acp-21-3667-2021
	Source apportionment and impact of long-range transport on carbonaceous aerosol particles in central Germany during HCCT-2010
	Poulain L.; Fahlbusch B.; Spindler G.; Müller K.; Van Pinxteren D.; Wu Z.; Iinuma Y.; Birmili W.; Wiedensohler A.; Herrmann H.
发表日期	2021
ISSN	1680-7316
起始页码	3667
结束页码	3684
卷号	21 期号:5
英文摘要	The identification of different sources of the carbonaceous aerosol (organics and black carbon) was investigated at a mountain forest site located in central Germany from September to October 2010 to characterize incoming air masses during the Hill Cap Cloud Thuringia 2010 (HCCT-2010) experiment. The near-PM1 chemical composition, as measured by a high-resolution time-offlight aerosol mass spectrometer (HR-ToF-AMS), was dominated by organic aerosol (OA; 41 %) followed by sulfate (19 %) and nitrate (18 %). Source apportionment of the OA fraction was performed using the multilinear engine (ME- 2) approach, resulting in the identification of the following five factors: hydrocarbon-like OA (HOA; 3% of OA mass), biomass burning OA (BBOA; 13 %), semi-volatilelike OA (SV-OOA; 19 %), and two oxygenated OA (OOA) factors. The more oxidized OOA (MO-OOA, 28 %) was interpreted as being influenced by aged, polluted continental air masses, whereas the less oxidized OOA (LO-OOA, 37 %) was found to be more linked to aged biogenic sources. Equivalent black carbon (eBC), measured by a multi-angle absorption photometer (MAAP) represented 10% of the total particulate matter (PM). The eBC was clearly associated with HOA, BBOA, and MO-OOA factors (all together R2 D 0:83). Therefore, eBC's contribution to each factor was achieved using a multi-linear regression model. More than half of the eBC (52 %) was associated with long-range transport (i.e., MO-OOA), whereas liquid fuel eBC (35 %) and biomass burning eBC (13 %) were associated with local emissions, leading to a complete apportionment of the carbonaceous aerosol. The separation between local and transported eBC was well supported by the mass size distribution of elemental carbon (EC) from Berner impactor samples. Air masses with the strongest marine influence, based on back trajectory analysis, corresponded with a low particle mass concentration (6.4-7.5 Ugm3/ and organic fraction ( 30 %). However, they also had the largest contribution of primary OA (HOA 4% and BBOA 15 %-20 %), which was associated with local emissions. Continental air masses had the highest mass concentration (11.4-12.6 Ugm3), and a larger fraction of oxygenated OA ( 45 %) indicated highly processed OA. The present results emphasize the key role played by long-range transport processes not only in the OA fraction but also in the eBC mass concentration and the importance of improving our knowledge on the identification of eBC sources. © This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
scopus关键词	aerosol; air mass; atmospheric pollution; black carbon; chemical composition; long range transport; particulate matter; size distribution; source apportionment; Germany
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/247073
作者单位	Leibniz Institut für Troposphärenforschung (TROPOS), Leipzig, 04318, Germany; Now At: Eurofins Clf Specialised Nutrition Testing Services GmbH, Friedrichsdorf, 61381, Germany; College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China; Now At: Okinawa Institute of Science and Technology Graduate University (OIST), Okinawa 904-0495, Japan, Japan; Umweltbundesamt (UBA), Berlin, 14195, Germany
推荐引用方式 GB/T 7714	Poulain L.,Fahlbusch B.,Spindler G.,et al. Source apportionment and impact of long-range transport on carbonaceous aerosol particles in central Germany during HCCT-2010[J],2021,21(5).
APA	Poulain L..,Fahlbusch B..,Spindler G..,Müller K..,Van Pinxteren D..,...&Herrmann H..(2021).Source apportionment and impact of long-range transport on carbonaceous aerosol particles in central Germany during HCCT-2010.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(5).
MLA	Poulain L.,et al."Source apportionment and impact of long-range transport on carbonaceous aerosol particles in central Germany during HCCT-2010".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.5(2021).