M
M. R. Alfarra
Researcher at University of Manchester
Publications - 52
Citations - 10942
M. R. Alfarra is an academic researcher from University of Manchester. The author has contributed to research in topics: Aerosol & Aerosol mass spectrometry. The author has an hindex of 32, co-authored 47 publications receiving 9943 citations. Previous affiliations of M. R. Alfarra include Paul Scherrer Institute.
Papers
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Journal ArticleDOI
Evolution of Organic Aerosols in the Atmosphere
Jose L. Jimenez,Manjula R. Canagaratna,Neil M. Donahue,André S. H. Prévôt,Qi Zhang,Jesse H. Kroll,Peter F. DeCarlo,James Allan,Hugh Coe,Nga L. Ng,Allison C. Aiken,Kenneth S. Docherty,Ingrid M. Ulbrich,Andrew P. Grieshop,Allen L. Robinson,Jonathan Duplissy,Jared D. Smith,Kevin R. Wilson,V. A. Lanz,Christoph Hueglin,Yele Sun,Yele Sun,Jian Tian,Ari Laaksonen,Tomi Raatikainen,Tomi Raatikainen,J. Rautiainen,Petri Vaattovaara,Mikael Ehn,Markku Kulmala,Markku Kulmala,Jason Tomlinson,Don R. Collins,Michael J. Cubison,Edward J. Dunlea,J. A. Huffman,Timothy B. Onasch,M. R. Alfarra,Paul I. Williams,Keith Bower,Yutaka Kondo,Johannes Schneider,Frank Drewnick,Stephan Borrmann,S. Weimer,Kenneth L. Demerjian,D. Salcedo,L. Cottrell,Robert J. Griffin,Akinori Takami,Takao Miyoshi,Shiro Hatakeyama,Akio Shimono,J. Y. Sun,Y. M. Zhang,Katja Dzepina,Joel R. Kimmel,Donna Sueper,J. T. Jayne,Scott C. Herndon,A. Trimborn,Leah R. Williams,Ezra C. Wood,Ann M. Middlebrook,Charles E. Kolb,Urs Baltensperger,Douglas R. Worsnop +66 more
TL;DR: A unifying model framework describing the atmospheric evolution of OA that is constrained by high–time-resolution measurements of its composition, volatility, and oxidation state is presented, which can serve as a basis for improving parameterizations in regional and global models.
Journal ArticleDOI
Ubiquity and dominance of oxygenated species in organic aerosols in anthropogenically-influenced Northern Hemisphere midlatitudes
Qi Zhang,Jose L. Jimenez,Manjula R. Canagaratna,James Allan,Hugh Coe,Ingrid M. Ulbrich,M. R. Alfarra,Akinori Takami,Ann M. Middlebrook,Yele Sun,Katja Dzepina,Edward J. Dunlea,Kenneth S. Docherty,Peter F. DeCarlo,D. Salcedo,Timothy B. Onasch,J. T. Jayne,Takao Miyoshi,A. Shimono,Shiro Hatakeyama,Nobuyuki Takegawa,Yutaka Kondo,Johannes Schneider,Frank Drewnick,Stephan Borrmann,Silke Weimer,Kenneth L. Demerjian,Paul I. Williams,Keith Bower,Roya Bahreini,Roya Bahreini,L. Cottrell,Robert J. Griffin,J. Rautiainen,J. Y. Sun,Yaping Zhang,D. R. Worsnop +36 more
TL;DR: In this article, organic aerosol data acquired by the AMS in 37 field campaigns were deconvolved into hydrocarbon-like OA (HOA) and several types of oxygenated OA components.
Journal ArticleDOI
Chemical and microphysical characterization of ambient aerosols with the aerodyne aerosol mass spectrometer
Manjula R. Canagaratna,John T. Jayne,Jose L. Jimenez,James Allan,M. R. Alfarra,Qi Zhang,Timothy B. Onasch,Frank Drewnick,Hugh Coe,Ann M. Middlebrook,A. E. Delia,Leah R. Williams,A. Trimborn,M. J. Northway,Peter F. DeCarlo,Charles E. Kolb,Paul Davidovits,Douglas R. Worsnop +17 more
TL;DR: A detailed discussion of the strengths and limitations of the AMS measurement approach is presented and how the measurements are used to characterize particle properties are reviewed to highlight the different applications of this instrument.
Journal ArticleDOI
Source apportionment of submicron organic aerosols at an urban site by factor analytical modelling of aerosol mass spectra
V. A. Lanz,M. R. Alfarra,Urs Baltensperger,Brigitte Buchmann,Christoph Hueglin,André S. H. Prévôt +5 more
TL;DR: In this article, positive matrix factorization (PMF) was used for the first time for aerosol mass spectra to identify the main com- ponents of the total organic aerosol and their sources.
Journal ArticleDOI
Relating hygroscopicity and composition of organic aerosol particulate matter
Jonathan Duplissy,Jonathan Duplissy,Peter F. DeCarlo,Peter F. DeCarlo,J. Dommen,M. R. Alfarra,A. Metzger,A. Metzger,I. Barmpadimos,André S. H. Prévôt,Ernest Weingartner,Torsten Tritscher,Martin Gysel,Allison C. Aiken,Allison C. Aiken,Jose L. Jimenez,Manjula R. Canagaratna,D. R. Worsnop,Don R. Collins,Jason Tomlinson,Jason Tomlinson,Urs Baltensperger +21 more
TL;DR: In this article, a hygroscopicity tandem differential mobility analyzer (HTDMA) was used to measure the water uptake (hygroscopy) of secondary organic aerosol (SOA) formed during the chemical and photochemical oxidation of several organic precursors in a smog chamber.