Atmospheric new particle formation from sulfuric acid and amines in a Chinese megacity

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dc.contributor.author Yao, Lei
dc.contributor.author Garmash, Olga
dc.contributor.author Bianchi, Federico
dc.contributor.author Zheng, Jun
dc.contributor.author Yan, Chao
dc.contributor.author Kontkanen, Jenni
dc.contributor.author Junninen, Heikki
dc.contributor.author Mazon, Stephany Buenrostro
dc.contributor.author Ehn, Mikael
dc.contributor.author Paasonen, Pauli
dc.contributor.author Sipilä, Mikko
dc.contributor.author Wang, Mingyi
dc.contributor.author Wang, Xinke
dc.contributor.author Xiao, Shan
dc.contributor.author Chen, Hangfei
dc.contributor.author Lu, Yiqun
dc.contributor.author Zhang, Bowen
dc.contributor.author Wang, Dongfang
dc.contributor.author Fu, Qingyan
dc.contributor.author Geng, Fuhai
dc.contributor.author Li, Li
dc.contributor.author Wang, Hongli
dc.contributor.author Qiao, Liping
dc.contributor.author Yang, Xin
dc.contributor.author Chen, Jianmin
dc.contributor.author Kerminen, Veli-Matti
dc.contributor.author Petäjä, Tuukka
dc.contributor.author Worsnop, Douglas R.
dc.contributor.author Kulmala, Markku
dc.contributor.author Wang, Lin
dc.date.accessioned 2020-01-14T09:45:01Z
dc.date.available 2020-01-14T09:45:01Z
dc.date.issued 2018-07-20
dc.identifier.citation Yao , L , Garmash , O , Bianchi , F , Zheng , J , Yan , C , Kontkanen , J , Junninen , H , Mazon , S B , Ehn , M , Paasonen , P , Sipilä , M , Wang , M , Wang , X , Xiao , S , Chen , H , Lu , Y , Zhang , B , Wang , D , Fu , Q , Geng , F , Li , L , Wang , H , Qiao , L , Yang , X , Chen , J , Kerminen , V-M , Petäjä , T , Worsnop , D R , Kulmala , M & Wang , L 2018 , ' Atmospheric new particle formation from sulfuric acid and amines in a Chinese megacity ' , Science , vol. 361 , no. 6399 , pp. 278-281 . https://doi.org/10.1126/science.aao4839
dc.identifier.other PURE: 120075976
dc.identifier.other PURE UUID: b76bbe92-77d5-45bb-9281-54d013aa64dc
dc.identifier.other WOS: 000439145800043
dc.identifier.other Scopus: 85050556712
dc.identifier.other ORCID: /0000-0001-7178-9430/work/51802818
dc.identifier.other ORCID: /0000-0002-8594-7003/work/51803726
dc.identifier.other ORCID: /0000-0002-4625-9590/work/51804190
dc.identifier.other ORCID: /0000-0002-5373-3537/work/51804911
dc.identifier.other ORCID: /0000-0002-6788-7828/work/51806087
dc.identifier.other ORCID: /0000-0002-9675-3271/work/51806234
dc.identifier.other ORCID: /0000-0003-2996-3604/work/51806512
dc.identifier.other ORCID: /0000-0002-1881-9044/work/102822395
dc.identifier.uri http://hdl.handle.net/10138/309487
dc.description.abstract Atmospheric new particle formation (NPF) is an important global phenomenon that is nevertheless sensitive to ambient conditions. According to both observation and theoretical arguments, NPF usually requires a relatively high sulfuric acid (H2SO4) concentration to promote the formation of new particles and a low preexisting aerosol loading to minimize the sink of new particles. We investigated NPF in Shanghai and were able to observe both precursor vapors (H2SO4) and initial clusters at a molecular level in a megacity. High NPF rates were observed to coincide with several familiar markers suggestive of H2SO4-dimethylamine (DMA)water (H2O) nucleation, including sulfuric acid dimers and H2SO4-DMA clusters. In a cluster kinetics simulation, the observed concentration of sulfuric acid was high enough to explain the particle growth to similar to 3 nanometers under the very high condensation sink, whereas the subsequent higher growth rate beyond this size is believed to result fromthe added contribution of condensing organic species. These findings will help in understanding urban NPF and its air quality and climate effects, as well as in formulating policies to mitigate secondary particle formation in China. en
dc.format.extent 4
dc.language.iso eng
dc.relation.ispartof Science
dc.rights unspecified
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject OXIDIZED ORGANIC-MOLECULES
dc.subject YANGTZE-RIVER DELTA
dc.subject NUMBER CONCENTRATIONS
dc.subject AEROSOL NUCLEATION
dc.subject SIZE DISTRIBUTION
dc.subject EMISSIONS
dc.subject AMMONIA
dc.subject GROWTH
dc.subject TIME
dc.subject CLUSTERS
dc.subject 114 Physical sciences
dc.subject 116 Chemical sciences
dc.subject 1172 Environmental sciences
dc.title Atmospheric new particle formation from sulfuric acid and amines in a Chinese megacity en
dc.type Article
dc.contributor.organization Institute for Atmospheric and Earth System Research (INAR)
dc.contributor.organization Aerosol-Cloud-Climate -Interactions (ACCI)
dc.contributor.organization INAR Physics
dc.contributor.organization Polar and arctic atmospheric research (PANDA)
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1126/science.aao4839
dc.relation.issn 0036-8075
dc.rights.accesslevel openAccess
dc.type.version acceptedVersion

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