Professor J. Abbatt,University of Toronto,CanadaMr L. Abraham,University of York,UKDr R. Alfarra,Paul Scherrer Institute,SwitzerlandDr J. Allan,University of Manchester,UKDr M. Ammann,Paul Scherrer Institute,SwitzerlandDr S. Arnold,University of Leeds,UKProfessor M. Ashfold,University of Bristol,UKDr S. Ashworth,University of East Anglia,UKDr L. Bache‐Andreassen,University of Oslo,NorwayMs C. Badger,University of Chemistry,UKDr M. Baeza Romero,University of Leeds,UKMiss C. Bale,University of Oxford,UKDr S. Ball,University of Cambridge,UKDr U. Baltensperger,Paul Scherrer Institute,SwitzerlandMiss J. Barnes,Cornwall College,UKDr C. Batchelor,Royal Society of Chemistry,UKDr S. Bauguitte,British Antarctic Survey,UKProfessor H. Berresheim,Deutscher Wetterdienst/BTU Cottbus,GermanyMr B. Blake,University of Leicester,UKDr M. Blitz,University of Lee,UKDr W. Bloss,University of Leeds,UKDr T. Brauers,Forschungszentrum Julich,GermanyMr I. Bravo,Universidad De Castilla La Mancha,UKMiss J. Buajarern,University of Bristol,UKDr J. Burkholder,NOAA Aeronomy Laboratory,USAProfessor J. Burrows,University of Bremen,GermanyDr C. Canosa‐Mas,University of Oxford,UKDr C. Cantrell,NCAR,USADr L. Carpenter,University of York,UKDr M. Chapman,Royal Society of Chemistry,UKDr M. Chipperfield,University of Leeds,UKDr P. Cleary,University of Leeds,UKDr H. Coe,Univeristy of Manchester,UKProfessor R. Cohen,University of California,USAF. Collingborne,Natural Environment Research Council,UKDr T. Cox,University of Cambridge,UKMiss B. Cronin,University of Bristol,UKMr J. Crosier,University of Manchester,UKDr J. Crowley,Max Planck Institute for Chemistry,GermanyMr D. Cryer,University of Leeds,UKMr C. Cuevas,University of Castilla La Mancha,SpainMr G. De Leeuw,TNO,The NetherlandsProfessor T. Dibble,SUNY College of Environmental Science and Forestry,USADr T. Dillon,Max Planck Institute of Chemistry,GermanyProfessor S. Dobe,Chemical Research Centre,HungaryDr R. Doherty,University of Edinburgh,UKProfessor N. Donahue,Carnegie Mellon University,USAProfessor J. Donaldson,University of Toronto,CanadaProfessor G. Duxbury,University of Strathclyde,UKDr W. Eisfeld,University of Munich,GermanyProfessor B. Ellison,University of Colorado,USADr C. Ennis,University of York,UKDr M. Evans,University of Leeds,UKMiss E. Farkas,Chemical Research Centre Budapest,HungaryMiss K. Feilberg,University of Copenhagen,DenmarkDr M. Fernandez,University of Cambridge,UKDr C. Fittschen,University of Lille,FranceDr B. Flake,European Office of Aerospace Research & Development,UKMr C. Floquet,University of Leeds,UKDr T. Gardiner,National Physical Laboratory,UKMiss K. Gawler,University College London,UKProfessor C. George,Universite Claude Bernard Lyon,FranceMr D. Glowacki,University of Leeds,UKDr A. Goddard,University of Leeds,UKDr P. Griffiths,University of Cambridge,UKMiss L. Gunn,University of Leeds,UKDr H. Harder,Max Planck Institute of Chemistry,GermanyDr M. Harrison,Meteorological Office,UKDr M. Heal,University of Edinburgh,UKMr R. Healy,University College Cork,Republic of IrelandProfessor D. Heard,University of Leeds,UKProfessor H. Herrmann,Leibniz Institut für Troposphärenforschung,GermanyDr E. Highwood,University of Reading,UKMiss V. Hilborne,London South Bank University,UKDr A. Hofzumahaus,Forschungszentrum Jülich,GermanyMiss R. Hopkins,University of Bristol,UKDr C. Howle,University of Bristol,UKDr R. Huie,REH Kinetics,USAProfessor A. Hynes,University of Miami,USADr Y. Iinuma,Leibniz Institut für Troposphärenforschung,GermanyDr T. Ingham,University of Leeds,UKMr M. Jacob,University of Leicester,UKDr H. Jacobi,Alfred Wegener Institute,GermanyProfessor L. Jaeglé,University of Washington,USADr M. Jenkin,Imperial College London,UKDr D. Johnson,Imperial College London,UKDr R. Jones,Cambridge University,UKDr B. Kärcher,Institute of Atmospheric Physics,GermanyDr Y. Kanaya,FRCGC/JAMSTEC,JapanDr A. Kiendler‐Scharr,Forschungszentrum Jülich,GermanyDr M. King,Royal Holloway, University of London,UKDr J. Kleffmann,Bergische Universität Wuppertal,GermanyDr C. Kolb,Aerodyne Research,UKMr G. Kovács,Chemical Research Centre,Budapest,HungaryDr I. Lagzi,Eotvos University,HungaryMr J. Langridge,University of Cambridge,UKDr J. Lee,University of York,UKDr G. Mann,University of Leeds,UKDr P. Marshall,University of North Texas,USADr D. Martin,University of Bristol,UKProfessor A. Marton,University of Veszprém,HungaryMr E. Mayor,Universidad de Valladolid,SpainDr G. McFiggans,University of Manchester,UKDr J. McQuaid,University of Leeds,UKDr T. Mentel,Forschungszentrum Jülich,GermanyMrs H. Meresman,University of Bristol,UKMr C. Mills,University of Oxford,UKDr G. Mills,University of East Anglia,UKDr L. Mitchem,University of Bristol,UKMs B. Monge,University of Leeds,UKDr P. Monks,University of Leicester,UKDr J. Mössinger,Nature,UKMs F. Nalden,Royal Society of Chemistry,UKMiss E. O’Brien,Royal Society of Chemistry,UKProfessor A. Orr‐Ewing,University of Bristol,UKMrs K. Parajuli,Leibniz Institut für Troposphärenforschung,GermanyMr A. Parker,University of Leicester,UKDr C. Percival,University of Manchester,UKMr C. Pfrang,University of Oxford,UKProfessor M. Pilling,University of Leeds,UKProfessor J. Plane,University of East Anglia,UKProfessor U. Platt,University of Heidelberg,GermanyDr F. Pope,California Institute of Technology,USAMr B. Price,University of Leeds,UKMiss K. Pringle,University of Leeds,UKProfessor J. Pyle,University of Cambridge,UKDr J. Rae,Meteorological Office,UKMiss T. Raventos‐Duran,University of Manchester,UKProfessor A. Ravishankara,NOAA Aeronomy Laboratory,USADr K. Read,University of Leeds,UKDr J. Reid,University of Bristol,UKDr J. Remedios,University of Leicester,UKMr R. Robinson,National Physical Laboratory,UKDr M. Roeselova,Czech Academy of Sciences,Czech RepublicDr H. Roscoe,British Antarctic Survey,UKProfessor J. Roscoe,Acadia University,CanadaDr D. Rowley,University College London,UKProfessor Y. Rudich,Weizmann Institute,IsraelDr H. Saathoff,Forschungszentrum Karlsruhe,GermanyMr A. Saiz‐Lopez,University of East Anglia,UKDr L. Salter,Cornwall College,UKDr M. Sanderson,Meteorological Office,UKDr U. Sarkar,Jadavpur University,IndiaDr P. Seakins,University of Leeds,UKDr S. Seisel,Universität Duisburg‐Essen,GermanyDr D. Self,University of Leeds,UKMr S. Sellevaag,University of Oslo,NorwayDr D. Shallcross,University of Bristol,UKMr A. Shillings,University of Cambridge,UKProfessor P. Siskos,University of Athens,GreeceMiss C. Smith,University of Bristol,UKDr G. Smith,University of Georgia,USAProfessor I. W. M. Smith,University of Birmingham,UKMiss S. C. Smith,University of Leeds,UKMiss J. Stanton,University of Leeds,UKDr K. Stemmler,Paul Scherrer Institute,SwitzerlandProfessor T. Stephenson,Swarthmore College,USADr D. Stevenson,University of Edinburgh,UKMiss T. Still,University of Leeds,UKProfessor J. Stutz,California State University,USADr C. Taatjes,Sandia National Laboratories,USADr R. Talukdar,NOAA Aeronomy Laboratory,UKDr C. Taylor,Royal Haskoning,UKMiss S. Taylor,University of Leeds,UKDr M. Teruel,Universidad Nacional de Cordoba,ArgentinaMr D. Topping,University of Manchester,UKDr A. Tuck,NOAA Aeronomy Laboratory,USAMr S. Vaughan,University of Oxford,UKDr D. Venables,University College Cork,Republic of IrelandDr L. Vereecken,K. U. Leuven,BelgiumMr E. Voehringer‐Martinez,University of Göttingen,GermanyProfessor A. Wahner,Forschungszentrum Jülich,GermanyMs S. Walker,University of Leeds,UKDr L. Wang,University of Leeds,UKDr A. Ward,CCLRC Rutherford Appleton Laboratory,UKProfessor R. Wayne,University of Oxford,UKDr J. Wenger,University College Cork,Republic of IrelandDr L. Whalley,University of Leeds,UKMr B. Wilson,Nottingham Trent University,UKMr S. Wright,University of Strathclyde,UKMr P. Young,University of Cambridge,UKMiss J. Zador,Eötvös University,HungaryProfessor R. Zellner,University of Duisburg‐Essen,GermanyProfessor P. Ziemann,University of California,Air Pollution Research Centre,USA