气候变化领域集成服务门户(CCPortal): A phenomenology of new particle formation (NPF) at 13 European sites

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DOI	10.5194/acp-21-11905-2021
	A phenomenology of new particle formation (NPF) at 13 European sites
	Bousiotis D.; Pope F.D.; Beddows D.C.S.; Dall'Osto M.; Massling A.; Nøjgaard J.K.; Nordstrøm C.; Niemi J.V.; Portin H.; Petäjä T.; Perez N.; Alastuey A.; Querol X.; Kouvarakis G.; Mihalopoulos N.; Vratolis S.; Eleftheriadis K.; Wiedensohler A.; Weinhold K.; Merkel M.; Tuch T.; Harrison R.M.
发表日期	2021
ISSN	1680-7316
起始页码	11905
结束页码	11925
卷号	21 期号:15
英文摘要	New particle formation (NPF) events occur almost everywhere in the world and can play an important role as a particle source. The frequency and characteristics of NPF events vary spatially, and this variability is yet to be fully understood. In the present study, long-term particle size distribution datasets (minimum of 3 years) from 13 sites of various land uses and climates from across Europe were studied, and NPF events, deriving from secondary formation and not traffic-related nucleation, were extracted and analysed. The frequency of NPF events was consistently found to be higher at rural background sites, while the growth and formation rates of newly formed particles were higher at roadsides (though in many cases differences between the sites were small), underlining the importance of the abundance of condensable compounds of anthropogenic origin found there. The growth rate was higher in summer at all rural background sites studied. The urban background sites presented the highest uncertainty due to greater variability compared to the other two types of site. The origin of incoming air masses and the specific conditions associated with them greatly affect the characteristics of NPF events. In general, cleaner air masses present higher probability for NPF events, while the more polluted ones show higher growth rates. However, different patterns of NPF events were found, even at sites in close proximity (<ĝ€¯200ĝ€¯km), due to the different local conditions at each site. Region-wide events were also studied and were found to be associated with the same conditions as local events, although some variability was found which was associated with the different seasonality of the events at two neighbouring sites. NPF events were responsible for an increase in the number concentration of ultrafine particles of more than 400ĝ€¯% at rural background sites on the day of their occurrence. The degree of enhancement was less at urban sites due to the increased contribution of other sources within the urban environment. It is evident that, while some variables (such as solar radiation intensity, relative humidity, or the concentrations of specific pollutants) appear to have a similar influence on NPF events across all sites, it is impossible to predict the characteristics of NPF events at a site using just these variables, due to the crucial role of local conditions. © Author(s) 2021.
语种	英语
scopus关键词	aerosol; air mass; particle size; seasonality; size distribution; Europe
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/246667
作者单位	Division of Environmental Health and Risk Management, School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom; Institute of Marine Sciences, Passeig Marítim de la Barceloneta, 37-49, Barcelona, 08003, Spain; Department of Environmental Science, Aarhus University, Roskilde, 4000, Denmark; The National Research Centre for the Working Environment, Lersø Parkallé 105, Copenhagen, 2100, Denmark; Helsinki Region Environmental Services Authority (HSY), Helsinki, 00066 HSY, Finland; Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland; Institute of Environmental Assessment and Water Research (IDAEA - CSIC), Barcelona, 08034, Spain; Environmental Chemical Processes Laboratory (ECPL), Department of Chemistry, University of Crete, Heraklion, 70013, Greece; Environmental Radioactivity Laboratory, Institute of Nuclear and Radiological Science and Technology, Energy and Sa...
推荐引用方式 GB/T 7714	Bousiotis D.,Pope F.D.,Beddows D.C.S.,et al. A phenomenology of new particle formation (NPF) at 13 European sites[J],2021,21(15).
APA	Bousiotis D..,Pope F.D..,Beddows D.C.S..,Dall'Osto M..,Massling A..,...&Harrison R.M..(2021).A phenomenology of new particle formation (NPF) at 13 European sites.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(15).
MLA	Bousiotis D.,et al."A phenomenology of new particle formation (NPF) at 13 European sites".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.15(2021).