1. Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Av. Diagonal 645, Barcelona E-08028, Spain
2. Department of Marine Biology and Oceanography, Institute of Marine Sciences (ICM-CSIC), Pg. Marítim de la Barceloneta, 37-49, Barcelona E-08003, Spain
3. Institute of Atmospheric and Climate Sciences, National Research Council of Italy (CNR), Bologna I-40129, Italy
4. Water Research Institute (IdRA), University of Barcelona, Montalegre 6, Barcelona E-08001, Spain