1. Department of Environmental Chemistry (ICER-CSIC), Jordi Girona, 18, 08034-Barcelona, Catalonia, Spain, Department of Environmental Sciences, University of Siena, Via Mattioli, 4, 53100 Siena, Italy, Department of Environmental Sciences, University of Castilla-La Mancha, Avda, Carlos III, s/n, 45071-Toledo, Spain, Aquatic Systems Research Unit, EULA - Chile Environmental Sciences Centre, University of Concepcion, Casilla 160 - C, Concepcion, Chile, and Izaña Atmospheric Observatory, National Institute of...