1. Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California, USA
2. Department of Atmospheric and Oceanic Sciences, University of California—Los Angeles, Los Angeles, California, USA
3. Instituto de Química, Universidade Federal de Bahia, Bahia, Brazil
4. Bournes College of Engineering, Center for Environmental Research and Technology, University of California—Riverside, Riverside, California, USA