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DOI	10.5194/acp-21-3345-2021
	The effect of meteorological conditions and atmospheric composition in the occurrence and development of new particle formation (NPF) events in Europe
	Bousiotis D.; Brean J.; Pope F.D.; Dall'Osto M.; Querol X.; Alastuey A.; Perez N.; Petäjä T.; Massling A.; Klenø Nøjgaard J.; Nordstrøm C.; Kouvarakis G.; Vratolis S.; Eleftheriadis K.; Niemi J.V.; Portin H.; Wiedensohler A.; Weinhold K.; Merkel M.; Tuch T.; Harrison R.M.
发表日期	2021
ISSN	1680-7316
起始页码	3345
结束页码	3370
卷号	21 期号:5
英文摘要	Although new particle formation (NPF) events have been studied extensively for some decades, the mechanisms that drive their occurrence and development are yet to be fully elucidated. Laboratory studies have done much to elucidate the molecular processes involved in nucleation, but this knowledge has yet to be conclusively linked to NPF events in the atmosphere. There is great difficulty in successful application of the results from laboratory studies to real atmospheric conditions due to the diversity of atmospheric conditions and observations found, as NPF events occur almost everywhere in the world without always following a clearly defined trend of frequency, seasonality, atmospheric conditions, or event development. The present study seeks common features in nucleation events by applying a binned linear regression over an extensive dataset from 16 sites of various types (combined dataset of 85 years from rural and urban backgrounds as well as roadside sites) in Europe. At most sites, a clear positive relation with the frequency of NPF events is found between the solar radiation intensity (up to R2 = 0:98), temperature (up to R2 = 0:98), and atmospheric pressure (up to R2 = 0:97), while relative humidity (RH) presents a negative relation (up to R2 = 0:95) with NPF event frequency, though exceptions were found among the sites for all the variables studied. Wind speed presents a less consistent relationship, which appears to be heavily affected by local conditions. While some meteorological variables (such as the solar radiation intensity and RH) appear to have a crucial effect on the occurrence and characteristics of NPF events, especially at rural sites, it appears that their role becomes less marked at higher average values. The analysis of chemical composition data presents interesting results. Concentrations of almost all chemical compounds studied (apart from O3) and the condensation sink (CS) have a negative relationship with NPF event frequency, though areas with higher average concentrations of SO2 had higher NPF event frequency. Particulate organic carbon (OC), volatile organic compounds (VOCs), and particulatephase sulfate consistently had a positive relation with the growth rate of the newly formed particles. As with some meteorological variables, it appears that at increased concentrations of pollutants or the CS, their influence upon NPF frequency is reduced. © Author(s) 2021.
语种	英语
scopus关键词	atmospheric chemistry; concentration (composition); data set; formation mechanism; nucleation; particulate matter; regression analysis; 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/247090
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; Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Barcelona, 08034, Spain; Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science University of Helsinki, Finland; Department of Environmental Science, Aarhus University, Roskilde, 4000, Denmark; The National Research Centre for the Working Environment, Copenhagen, 2100, Denmark; 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 Safety, Ncsr Demokritos, Athens, Greece; Helsinki Region Environmental Services Authority (HSY), Helsinki, 00066 HSY, Fin...
推荐引用方式 GB/T 7714	Bousiotis D.,Brean J.,Pope F.D.,et al. The effect of meteorological conditions and atmospheric composition in the occurrence and development of new particle formation (NPF) events in Europe[J],2021,21(5).
APA	Bousiotis D..,Brean J..,Pope F.D..,Dall'Osto M..,Querol X..,...&Harrison R.M..(2021).The effect of meteorological conditions and atmospheric composition in the occurrence and development of new particle formation (NPF) events in Europe.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(5).
MLA	Bousiotis D.,et al."The effect of meteorological conditions and atmospheric composition in the occurrence and development of new particle formation (NPF) events in Europe".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.5(2021).