1. Department of Sanitary Engineering, Faculty of Public Health, Mahidol University, Bangkok, Thailand;
2. School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, Thailand;
3. Geomicrobiology Group, School of Life Sciences, University of Dundee, Dundee, UK;
4. Center of Excellence on Environmental Health and Toxicology (EHT), CHE, Ministry of Education, Bangkok, Thailand;
5. Department of Environmental Health Sciences, Faculty of Public Health, Mahidol University, Bangkok, Thailand