1. Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, and Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou, China
2. Department of Environmental and Occupational Health, and Department of Civil and Environmental Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
3. Department of Civil and Environmental Engineering and Construction, University of Nevada, Las Vegas, Nevada, USA
4. Graduate Institute of Environmental Engineering, National Taiwan University, Taipei, Taiwan