The viscosity of atmospherically relevant organic particles.

Autor: Reid JP; School of Chemistry, University of Bristol, Manchester, BS8 1TS, UK. J.P.Reid@bristol.ac.uk., Bertram AK; Department of Chemistry, University of British Columbia, Vancouver, BC, Canada., Topping DO; School of Earth, Atmospheric and Environmental Science, University of Manchester, Manchester, M13 9PL, UK., Laskin A; Department of Chemistry, Purdue University, West Lafayette, IN, USA., Martin ST; School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA.; Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA, 02138, USA., Petters MD; Department of Marine Earth and Atmospheric Sciences, North Carolina State University, Raleigh, NC, 27695, USA., Pope FD; School of Geography, Earth and Environmental Sciences, University of Birmingham Edgbaston, Birmingham, B15 2TT, UK., Rovelli G; School of Chemistry, University of Bristol, Manchester, BS8 1TS, UK.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2018 Mar 06; Vol. 9 (1), pp. 956. Date of Electronic Publication: 2018 Mar 06.
DOI: 10.1038/s41467-018-03027-z
Abstrakt: The importance of organic aerosol particles in the environment has been long established, influencing cloud formation and lifetime, absorbing and scattering sunlight, affecting atmospheric composition and impacting on human health. Conventionally, ambient organic particles were considered to exist as liquids. Recent observations in field measurements and studies in the laboratory suggest that they may instead exist as highly viscous semi-solids or amorphous glassy solids under certain conditions, with important implications for atmospheric chemistry, climate and air quality. This review explores our understanding of aerosol particle phase, particularly as identified by measurements of the viscosity of organic particles, and the atmospheric implications of phase state.
Databáze: MEDLINE