1. Department of Environmental Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran;
2. Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran;
3. Department of Water Science, Shoushtar Branch, Islamic Azad University, Shoushtar, Iran;
4. Department of Environmental Health Engineering, School of Public Health, Social Development and Health Promotion Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran