1. Graduate Institute of Environmental Engineering and Management, National Taipei University of Technology, Taiwan, Republic of China.
2. Institute of Environmental Engineering, National Sun Yat-Sen University, Kaoshiung, Taiwan, Republic of China.
3. Department of Environmental Engineering, National I-Lan University, I-Lan, Taiwan, Republic of China.
4. Department of Environment and Property Management, Jinwen University of Science and Technology, Taipei, Taiwan, Republic of China.