1. Faculty of Health, Hamadan University of Medical Sciences and Health Services, Hamadan, Iran
2. Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
3. Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
4. Department of Environmental Health Engineering, School of public Health, Tehran University of Medical Sciences, Tehran, Iran and Center for Solid Waste Research, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran