1. Department of Environmental Health Sciences, Center for Health Sciences, School of Public Health, University of California–Los Angeles, Los Angeles, CA, USA
2. Southern California Particle Center, Los Angeles, CA, USA
3. Universidade Federal da Bahia, Instituto de Química, Salvador, BA, Brasil
4. División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana, Azcapotzalco, Mexico