1. Nanotechnology Products Laboratory, Water Safety Research Center, Food and Drug Organization, Ministry of Health and Medical Education, Tehran, Iran
2. Department of Environmental Health Engineering, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
3. Environmental and Occupational Hazards Control Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
4. Department of Chemistry, Iran University of Science and Technology, Tehran, Iran