1. Department of Agricultural and Biological Engineering, University of Florida, Gainesville, Florida, USA
2. National Health and Environmental Effects Research Laboratory, US EPA, Gulf Breeze, Florida, USA
3. Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong
4. School of Environmental and Chemical Engineering, Foshan University, Foshan, China
5. Department of Agriculture, University of Arkansas at Pine Bluff, Pine Bluff, Arkansas, USA