Barbara Noziere¹, Violaine Gérard², Ludovic Fine³, Corinne Ferronato², Dharmendra Kumar Singh⁴, Amanda A. Frossard⁵, Ronald C Cohen⁶, Eija Asmi⁷, Heikki Lihavainen⁷, Niku Kivekäs⁷, Minna Aurela⁷, David Brus⁷, Sanja Frka and Ana Cvitešić⁹, (1)CNRS Lyon, Lyon, France, (2)CNRS Lyon, IRCELYON, Villeurbanne, France, (3)CNRS, Paris Cedex 16, France, (4)CNRS Lyon, Ircelyon, Villeurbanne, France, (5)University of Georgia, Chemistry, Athens, GA, United States, (6)UC Berkeley, Berkeley, CA, United States, (7)Finnish Meteorological Institute, Helsinki, Finland, (8)Ruđer Bošković Institute, Division for Marine and Environmental Research, Zagreb, Croatia