% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Maclean:903147, author = {Maclean, Adrian M. and Li, Ying and Crescenzo, Giuseppe V. and Smith, Natalie R. and Karydis, Vlassis A. and Tsimpidi, Alexandra P. and Butenhoff, Christopher L. and Faiola, Celia L. and Lelieveld, Jos and Nizkorodov, Sergey A. and Shiraiwa, Manabu and Bertram, Allan K.}, title = {{G}lobal {D}istribution of the {P}hase {S}tate and {M}ixing {T}imes within {S}econdary {O}rganic {A}erosol {P}articles in the {T}roposphere {B}ased on {R}oom-{T}emperature {V}iscosity {M}easurements}, journal = {ACS earth and space chemistry}, volume = {5}, number = {12}, issn = {2472-3452}, address = {Washington, DC}, publisher = {ACS Publications}, reportid = {FZJ-2021-04871}, pages = {3458-}, year = {2021}, note = {Bitte Post-print ergänzen}, abstract = {Information on the global distributions of secondary organic aerosol (SOA) phase state and mixing times within SOA is needed to predict the impact of SOA on air quality, climate, and atmospheric chemistry; nevertheless, such information is rare. In this study, we developed parameterizations for viscosity as a function of relative humidity (RH) and temperature based on room-temperature viscosity data for simulated pine tree SOA and toluene SOA. The viscosity parameterizations were then used together with tropospheric RH and temperature fields to predict the SOA phase state and mixing times of water and organic molecules within SOA in the troposphere for 200 nm particles. Based on our results, the glassy state can often occur, and the mixing times of water can often exceed 1 h within SOA at altitudes >6 km. Furthermore, the mixing times of organic molecules within SOA can often exceed 1 h throughout most of the free troposphere (i.e., ≳1 km in altitude). In most of the planetary boundary layer (i.e., ≲1 km in altitude), the glassy state is not important, and the mixing times of water and organic molecules are less than 1 h. Our results are qualitatively consistent with the results from Shiraiwa et al. (Nat. Commun., 2017), although there are quantitative differences. Additional studies are needed to better understand the reasons for these differences.}, cin = {IEK-8}, ddc = {550}, cid = {I:(DE-Juel1)IEK-8-20101013}, pnm = {2111 - Air Quality (POF4-211)}, pid = {G:(DE-HGF)POF4-2111}, typ = {PUB:(DE-HGF)16}, UT = {WOS:000757012400016}, doi = {10.1021/acsearthspacechem.1c00296}, url = {https://juser.fz-juelich.de/record/903147}, }