气候变化领域集成服务门户(CCPortal): Aerosol pollution maps and trends over Germany with hourly data at four rural background stations from 2009 to 2018

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DOI	10.5194/acp-20-10967-2020
	Aerosol pollution maps and trends over Germany with hourly data at four rural background stations from 2009 to 2018
	Heintzenberg J.; Birmili W.; Hellack B.; Spindler G.; Tuch T.; Wiedensohler A.
发表日期	2020
ISSN	1680-7316
起始页码	10967
结束页码	10984
卷号	20 期号:18
英文摘要	A total of 10 years of hourly aerosol and gas data at four rural German stations have been combined with hourly back trajectories to the stations and inventories of the European Emissions Database for Global Atmospheric Research (EDGAR), yielding pollution maps over Germany of PM10, particle number concentrations, and equivalent black carbon (eBC). The maps reflect aerosol emissions modified with atmospheric processes during transport between sources and receptor sites. Compared to emission maps, strong western European emission centers do not dominate the downwind concentrations because their emissions are reduced by atmospheric processes on the way to the receptor area. PM10, eBC, and to some extent also particle number concentrations are rather controlled by emissions from southeastern Europe from which pollution transport often occurs under drier conditions. Newly formed particles are found in air masses from a broad sector reaching from southern Germany to western Europe, which we explain with gaseous particle precursors coming with little wet scavenging from this region. Annual emissions for 2009 of PM10, BC, SO2, and NOx were accumulated along each trajectory and compared with the corresponding measured time series. The agreement of each pair of time series was optimized by varying monthly factors and annual factors on the 2009 emissions. This approach yielded broader summer emission minima than published values that were partly displaced from the midsummer positions. The validity of connecting the ambient concentration and emission of particulate pollution was tested by calculating temporal changes in eBC for subsets of back trajectories passing over two separate prominent emission regions, region A to the northwest and B to the southeast of the measuring stations. Consistent with reported emission data the calculated emission decreases over region A are significantly stronger than over region B. © Author(s) 2020.
语种	英语
scopus关键词	aerosol; atmospheric transport; concentration (composition); data set; mapping method; particulate matter; source apportionment; trend analysis; 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/247511
作者单位	Leibniz Institute for Tropospheric Research (TROPOS), Permoserstr. 15, Leipzig, 04318, Germany; German Environment Agency, Wörlitzer Platz 1, Dessau-Roßlau, 06844, Germany
推荐引用方式 GB/T 7714	Heintzenberg J.,Birmili W.,Hellack B.,et al. Aerosol pollution maps and trends over Germany with hourly data at four rural background stations from 2009 to 2018[J],2020,20(18).
APA	Heintzenberg J.,Birmili W.,Hellack B.,Spindler G.,Tuch T.,&Wiedensohler A..(2020).Aerosol pollution maps and trends over Germany with hourly data at four rural background stations from 2009 to 2018.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(18).
MLA	Heintzenberg J.,et al."Aerosol pollution maps and trends over Germany with hourly data at four rural background stations from 2009 to 2018".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.18(2020).