NDLI: Factors controlling the evaporation of secondary organic aerosol from α‐pinene ozonolysis

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Factors controlling the evaporation of secondary organic aerosol from α‐pinene ozonolysis

Content Provider	Semantic Scholar
Author	Yli-Juuti, Taina Pajunoja, Aki Tikkanen, Olli-Pekka Buchholz, Angela Faiola, Celia Väisänen, Olli Hao, Liqing Kari, Eetu Peräkylä, Otso Garmash, Olga Shiraiwa, Manabu Ehn, Mikael Lehtinen, Kari Virtanen, Annele
Copyright Year	2017
Abstract	Secondary organic aerosols (SOA) forms a major fraction of organic aerosols in the atmosphere. Knowledge of SOA properties that affect their dynamics in the atmosphere is needed for improving climate models. By combining experimental and modeling techniques, we investigated the factors controlling SOA evaporation under different humidity conditions. Our experiments support the conclusion of particle phase diffusivity limiting the evaporation under dry conditions. Viscosity of particles at dry conditions was estimated to increase several orders of magnitude during evaporation, up to 109 Pa s. However, at atmospherically relevant relative humidity and time scales, our results show that diffusion limitations may have a minor effect on evaporation of the studied α-pinene SOA particles. Based on previous studies and our model simulations, we suggest that, in warm environments dominated by biogenic emissions, the major uncertainty in models describing the SOA particle evaporation is related to the volatility of SOA constituents.
Starting Page	2562
Ending Page	2570
Page Count	9
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://helda.helsinki.fi/bitstream/handle/10138/209598/Yli_Juuti_et_al_2017_Geophysical_Research_Letters.pdf?sequence=1
PubMed reference number	28503004v1
Alternate Webpage(s)	https://doi.org/10.1002/2016GL072364
DOI	10.1002/2016gl072364
Journal	Geophysical research letters
Volume Number	44
Language	English
Access Restriction	Open
Subject Keyword	Aerosol Dose Form Emission - Male genitalia finding Exposure to Humidity Neoplasm Metastasis Soa Solute Carrier Organic Anion Transporter Family Member 1b1 Volatility evaporation negative regulation of secondary cell wall biogenesis orders - HL7PublishingDomain
Content Type	Text
Resource Type	Article

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