1. Environmental and Occupational Health Sciences Institute, Robert Wood Johnson Medical School/University of Medicine and Dentistry of New Jersey, Piscataway, New Jersey, USA;
2. U.S. Environmental Protection Agency, National Exposure Research Laboratory, Athens, Georgia, USA;
3. Catholic University of Leuven, Research Unit of Lung Toxicology, Laboratory of Pneumology, Leuven, Belgium;
4. University of Modena and Reggio Emilia, Dipartimento di Scienze di Sanità Pubblica, Modena, Italy;
5. Department of Pediatrics, Unit of Allergy and Respiratory Medicine, University of Padova, Padova, Italy;
6. School of Civil Engineering, Purdue University, West Lafayette, Indiana, USA;
7. National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, Georgia, USA;
8. Faculty of Medicine, University of Oslo, Norwegian School of Sport Sciences, Oslo, Norway;
9. Johns Hopkins University (retired), Baltimore, Maryland, USA;
10. Engler-Bunte-Institute, Department of Water Chemistry, University of Karlsruhe, Karlsruhe, Germany;
11. Department of Epidemiology, Rollins School of Public Health, Emory University, Georgia, USA;
12. Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio, USA;
13. Department of Environmental Health, University of Cincinnati, Cincinnati, Ohio, USA;
14. Division of Environmental and Occupational Health, The Netherlands Institute for Risk Assessment Sciences, University of Utrecht, Utrecht, The Netherlands;
15. Centre for Research in Environmental Epidemiology, Barcelona, Spain;
16. Municipal Institute of Medical Research (IMIM-Hospital del Mar), Barcelona, Spain;
17. CIBER Epidemiologia y Salud Pública, Spain;
18. Medical School, University of Crete, Heraklion, Greece;
19. LaKind Associates, LLC, Catonsville Maryland, USA;
20. Environmental Epidemiology, Parc de Recerca Biomèdica de Barcelona, Barcelona, Spain;
21. Truman State University (retired), Education Committee National Swimming Pool Foundation, Bushkill, Pennsylvania, USA;
22. Centre for Research on Environmental Microbiology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada