1. Division of Drinking Water Safety, School of Environment, Tsinghua University, Beijing 100084, China
2. International Water Association, Units 1.04 & 1.05 Export Building, 1 Clove Crescent, London E14 2BA, UK
3. School of Civil & Environmental Engineering, University of New South Wales, Sydney, NSW 2052, Australia
4. Department of Civil and Environmental Engineering, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada
5. Water Research Commission, Water Use & Waste Management, Pretoria, South Africa
6. Michigan State University, East Lansing, MI 48824, USA
7. RICS School of Construction, Amity University, Noida, India
8. Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong