1. Environmental Toxicology Laboratory, Instituto Nacional de Cancerología, Avenida San Fernando 22, Tlalpan, 14080 México City, CP, DF, Mexico
2. Centre for Environmental Sciences, Hasselt University, 3500 Hasselt, Belgium
3. Department of Public Health, Leuven University (KU Leuven), 3000 Leuven, Belgium
4. Department of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain 17666, UAE
5. Aerobiology Laboratory, Atmospheric Sciences Center, Universidad Nacional Autónoma de México, 04510 México City, DF, Mexico
6. Department of Air Pollution and Noise, Norwegian Institute of Public Health, 0403 Oslo, Norway